Watching several people "explaining" carbides, the one thing I haven't heard is mention of the grade. And grade is very important to the final result. Putting a Carboloy 883 into steel is going to be instantly expensive. Using a 350 grade for finishing or a 370 grade for roughing isn't going to work either. How these equate to the "C" designation, I don't know, or care. 350 is for roughing steel, 370 is for finishing cuts. 883 is for nonferrous material or cast iron. For finishing cuts, carbides don't like either a sharp point or too large radius. Speeds and feeds have to be matched, and I don't know of any formula except try it and see if it works. When it works, that means it ain't broke, don't fix it.

@BladesIIB

11 ай бұрын

@richbuege6491 - thanks for leaving the comment. I am sure your extra info will help others out.

I am glad you made this video; I assumed that the brazed carbide were just junk. I didn't realize they needed to be sharpened before use. Thanks! Subscribed.

@BladesIIB

3 жыл бұрын

Bruce, I think a lot of people have that experience. Some brands new are in better shape than others but essentially these were the “better” tool over HSS before inserts and everyone was used to getting a HSS blank and having to sharpen it before first use, so getting a new Brazed carbide was the same. Now that inserts and indexable tooling are so prevalent people just think all carbide is ready to go. I hope your Brazed carbide experience is significantly better after you sharpen a few. They are a great resource. And thank you for subscribing!

@zeushernandez2449

2 жыл бұрын

And they are worth money even used if u get a bucket of them and take em to the scrapers they’ll give u big money depending on how many u take in

@veegee24

7 ай бұрын

Actually no, they don't necessarily need to be sharpened. Depends on what you buy.

Great video, thanks for showing us how to sharpen brazed bits and why they are not obsolete.

@BladesIIB

3 жыл бұрын

Glad you enjoyed it. Now to work on my spelling. 😁

A trick you may find helpful is to take the dull carbide insert and silver braze it onto a steel shank. Then you can sharpen the insert with your grinding wheel and re-use it. This is also handy when you find carbide inserts for which you have no holder. It only takes a minute to silver solder them with an ox-acetylene or acetylene plumbers torch (propane torch won't work as you'll end up roasting the flux before the work is hot enough to silver solder...the work has to be quickly heated to a dull red so the solder will be drawn into the joint.) Cheers from NC/USA

@BladesIIB

3 жыл бұрын

Aceroadholder- agree that is a great way to get some extra use out of your inserts or as you said make use of some cheap odd ones with no holder.

Great video. They buy a lot of these where I work and they are usually wrecked the first time they are used by the hacks in our maintenance department. I dressed one up today to do some threading in 304ss-p70 after watching this video and it went very well. I used just a hand diamond stone after grinding and it didn't take too many passes to end up with a good tool.

@BladesIIB

2 жыл бұрын

Haunter_1 - Thanks for the comment. Glad to hear the video helped you get some more mileage out of your brazed carbide tooling. They can be sharpened a lot of times and can last a long time, and my experience is like yours, it does not take much to get them to cut really nicely.

Great video!! As a new mini lathe owner, i was struggling with all the different cutting options. Since i dont have a grinding tool, this helped me go with an index. Insert. This video also helped me understand how HSS can be sharpened and used as well by applying the concepts of the braised carbide.

@BladesIIB

6 ай бұрын

@TooManyHobbies - Congrats on the new lathe, glad this was helpful. Inserts are a great option. Every once in a while you may not have the profile you need so knowing you have cost effective options you can grind when needed can be a time and money saver as well. Lots more detail available on tool geometry I did not cover in this video, just tried to cover the basics to get people going. Thanks for the comment.

Yeah, the 2 thou cut compared to the fine sharper insert at 5 thou it’s still a bit better! Wow! Thank you for this video and all the content you put it out there not being about yourself like many others do. You’re awesome! One video I’ve been looking for and not been able to find is how to shape sharpen brazed carbide for different materials like 4040, 4060, aluminum, brass, plastic, bone, etc for breaking chips and achieving best finishes. I did some machining back in the early 90’s and remember all the relieving and grooves, angles, etc to make it cut through different metals, but I’m more of a visual learner than a reader and highly prefer video over books to learn, I just don’t have the patience for reading about as I have for making things. i am a watchmaker and cue maker self apprentice, and it would be the very first video on the subject in this platform if you could be kind to explain it on your simple way instead of very complicated books. Thanks again!

@BladesIIB

3 жыл бұрын

Edson, thanks for the comment. I will look into your request. I don’t have all those angles down for sure. I go by feel on most of that and other than drill bits and threading tools, I rarely check the angle of anything I sharpen. Let me see what I can find. Thanks for the idea.

I was able to get a killer deal on a Baldor diamond wheel grinder at auction, so I switched to brazed carbide for cost reasons. I can buy a brazed carbide tool for about the price of 2 inserts and sharpen and reuse it many many times. Good vid. THANKS

@BladesIIB

2 жыл бұрын

Don Sipes - Thanks for the comment. Sounds like you have a good system going. For CNC where that tool height repeatability is needed then inserts are hard to beat. For the average manual machinist, I agree that brazed carbide can save you a ton of money if you are willing to spend a few minutes sharpening. Bet that Baldor at auction was a steal - congrats!

Nice to see the side by side comparisons.

@BladesIIB

3 жыл бұрын

7Alfa Tech - I was hoping that would help. Found the magnifier app on my iPhone and pretty impressed with what it shows. Also great for reading the etched in size of small drill bits, end mills and reamers.

G'day Bud and greetings from Tasmania Australia 🇦🇺 I just happened to stumble across your channel and I though you very good on how you explained step by step machining. This particular one that you were grinding these braised on carbide tips I really thought that they were junk but thank you for showing how to grind them and make the carbides sharp this was much appreciated since I have quite a few.Take care mate regards John

@BladesIIB

2 жыл бұрын

John Kinnane - Thanks for the comment and glad to hear this video will help you get some use out of some tool bits you have laying around. Also glad to hear you are enjoying the channel. Take care as well!

Great video, as always

@BladesIIB

3 жыл бұрын

Paul- thank you. Glad you enjoyed it.

I bought a mini lathe a year ago,, and I bought those brazed carbide bits,,, I'm one of those people being self taught to use a lathe thought they were ready to use right out of the box. And I have been using them that way. That's until I came across this video. I took one and sharpened it the way you suggested and let me tell you,,, it cuts like a new lathe !!! And the finish is like the difference between night and day. I get a beautiful mirror finish on my work now !!! Thank You Very Much !!!!!!!!

@BladesIIB

2 жыл бұрын

Ron Haddock - Thanks for sharing that story Ron, so glad this video gave you some helpful information. Self learning machining is a challenge and I am honored to have helped you on your journey. It just keeps getting better and always more to learn.

@generalawareness101

2 жыл бұрын

I want a lathe, but I am so afraid of the garbage I will get after watching countless vids here on YT. Not that I plan on using it all that much, much like my Drill Press, but it is nice to have when you need it. Those blue "brazed" inserts is what comes with all the mini metal lathes I have looked at (or none at all). Looking to get a 600-800 dollar model which is 8x14 or 8x16 metal gear lathe belt driven with a DC brushed motor. I don't like brushed motors but nothing I can find uses a brushless DC. As it is I need to devise some sort of space for it (I have absolutely none) then I need to find a table for it as making my own in 2021 is crazy nuts expensive compared to 2018 (was all wood for my 60w CO2 laser cutter).

@BladesIIB

2 жыл бұрын

@@generalawareness101 if you have not already, I recommend you join The Hobby Machinist Forum and check out the users of many different min lathes before you buy. You will get real feedback from real users and should help you match what you are looking for with what you want to use it for and hopefully keep you from getting one you are not happy with. Good luck.

@generalawareness101

2 жыл бұрын

@@BladesIIB Well, as I said, I don't plan on using it much but the few times a year I want to/need to it would rock. Basically, plastic, Aluminium, and threads from 3mmx0.5 on up past 10mmx1.5. I suspect threads will be the biggest thing.

@generalawareness101

2 жыл бұрын

@@BladesIIB Which sub forum/group/whatever would I even ask that in? Heck, I am not even sure what to ask, lol.

You Sir, are sensational. Thanks for taking the time and effort. You deserve 100K + subscribers...NOW.....go for it and good luck. David from "Aus"

@BladesIIB

3 жыл бұрын

David - really appreciate the feedback and can’t wait until 99,275 more people agree with you, I will keep pushing for it. Have a great weekend in your shop.

Very useful thanks. Now it's clear when to use them. Cheers

@BladesIIB

Жыл бұрын

Haxby_Shed - Appreciate the comment. Glad it was helpful.

Thanks for a great video. I knew the brazed carbide needed sharpened out of the box. I think sometimes we try to get the bit to look great and lose sight of what really maters (ie cutting edge, relief angles, cutting angle).I will go back and redo my hack jobs.

@BladesIIB

2 жыл бұрын

Hanson Electric - Appreciate hearing how this helped you, thanks for the comment.

love that hook rule with the 59 degree attachment for drill bit sharpening in your pocket.....well done Sir....learned some valuable stuff here...Paul

@BladesIIB

Жыл бұрын

Paul Brown - Yes it is a great pocket tool for sure. Have one I bought over 30 years ago and thought I lost it once so now I have 2 of them. 🤷‍♂️. Thanks for watching, I have another video specifically on sharpening drills, hope you enjoy that as well.

@ypaulbrown

Жыл бұрын

@@BladesIIB I will dig it up....thanks.....I will check out the Drill Sharpen video.....Paul

@BladesIIB

Жыл бұрын

@@ypaulbrown Here is a link, save you some digging. kzread.info/dash/bejne/Z6CD2LtshM-2l8Y.html

Nice comparison. Thanks for sharing.

@BladesIIB

5 ай бұрын

@bobfugazy4916 - Appreciate the comment! Thanks for watching.

Thanks, this explains why mine where rubbish, now I know I will have to sharpen them. As I'm new to this it never occurred to me that they weren't ready to use.

@BladesIIB

2 жыл бұрын

Golo1949 - Glad it was helpful. You are not alone in that thinking, a lot of people think they are ready to go. Remember these were the upgrade from HSS and just like HSS needs to be sharpened so did these out of the box. Inserts are ready to go but not these. Good luck, great hobby to get into.

Awesome info! Thank you for sharing....

@BladesIIB

3 жыл бұрын

jster1963 - welcome! Glad you liked it.

Felicitaciones por su gran video muy completo y con excelentes argumentos, sin duda el mejor.

@BladesIIB

Жыл бұрын

R H - Muchas gracias!

hey Bud, looking great, great information here...best regards from Florida, Paul

@BladesIIB

Жыл бұрын

Paul Brown - Thanks for the comment Paul. Glad you are enjoying the channel.

Very interesting demo..

@BladesIIB

Жыл бұрын

JOEY LIWANAG - Appreciate the comment. I hope you also have a chance to look at some of the newer videos on the channel.

Great information! Thanks.🙂

@BladesIIB

7 ай бұрын

@Hp2G1 - Welcome! Thanks for the comment.

I received a fair amount of brazed carbide when I bought my lathe. Most of it broken or chipped in some way. I'm glad I saw this video before tossing it all! Looking forward to taking a shot at sharpening it. So far HSS sharpening is going well.

@BladesIIB

3 жыл бұрын

Ed that is great to hear. With a silicon carbide wheel it sharpens very much like HSS so if that is going well you should really like how your carbide cuts. All the best!

@edhibbard1030

3 жыл бұрын

@@BladesIIB I noticed you dressed your grinding wheel between videos. Could you do a short video on that sometime? Thanks! Also, I loved the still photos of the various tools. That really helps when trying to understand the angles and what you describe in your grinding.

@BladesIIB

3 жыл бұрын

@@edhibbard1030 yes I could do that. I have a regular star dresser and a flat diamond dresser. Since I don’t have tool rests I am just holding them up by hand. Will post a quick video of that for you.

@BladesIIB

3 жыл бұрын

@@edhibbard1030 I just posted a short video on dressing the wheel. I hope that gives you what you need. Take care!

Thanks so much I learnt a lot. Cheers Stuart 🇦🇺

@BladesIIB

2 жыл бұрын

Scrounga’s Workshop - Thanks for the comment Stuart. Glad it was helpful!

Thank u for the information I just got a really old Skool lathe and I saw that my tool or inserts were hitting my work piece at the bottom n the insert wasn’t touching my work piece n that was my next step grinding but wasn’t sure about it lol and u confirm it and added more info to my situation thank I awesome content u got a new subscriber sir good day lol

@BladesIIB

2 жыл бұрын

Jesus Hernandez - Appreciate the comment and really glad the video helped you out and got your machine cutting. Be sure to verify your tool is on center as you set up your machine. Having the tool to high could also cause it to contact your work piece as you describe. Thanks for the sub!

@zeushernandez2449

2 жыл бұрын

@@BladesIIB yea I notice that to but I had to grid it the tools where new n is their any other way of sharpening the tool whit out the diamond cut?

@BladesIIB

2 жыл бұрын

@@zeushernandez2449 you can get away with just the silicon carbide wheel, the diamond is nice for finishing them but not a requirement. The silicon carbide is though. If you try and grind them on a regular aluminum oxide wheel you will find they are to hard.

@zeushernandez2449

2 жыл бұрын

@@BladesIIB thanks I really appreciate the the time ur taking here whit me. I will be doing that today after work lol I’m doing a tool post holder and it’s coming along but I stop after watching ur videos to sharpen my inserts lol 😂 after the first one I was amazed at the results but I’m keep trying to sharpen them n modified a couple

Wow! What a great video! The photography was magnificent! Gee, that's a whole bunch of exclamation points! I'm embarrassed to say I had no clue that new (brazed) carbide tools needed to be sharpened before use. Admittedly, I'm still using HSS and have only mused over using carbide of either flavor. One thing for sure... If and when I do, I will need a minimum of a tool rest at the grinder. It blew my mind when you went to the grinder. I expected to see more than a basic tool rest. I thought I'd be seeing a fixture guaranteeing cutting angles and such. Instead, the only rest you used was the bench that held the grinder. I THINK I once possessed the steady hands and good eyes to freehand but definitely not any longer. Thanks for the great video. It will definitely improve my first attempts when using them. Wakodahatchee Chris ....Let's Go Brandon!

@BladesIIB

Жыл бұрын

C DRIVE - Appreciate the comment. Glad the video was helpful. Tool rests are a great idea and definitely the preferred safety option. I am using a buffer as my grinder so it has no rests. I have another video walking through the two wheel set up I have and it shows my friends grinder I took the idea from and he has full rests on both wheels on his. It does also help get all the angles just where you want them as you mention. HSS also works great depending on the project. Glad to hear you will be all set when you get some carbide.

thank you, very informative, cheers....

@BladesIIB

5 ай бұрын

@paulrbrownbr549 - Appreciate the feedback, glad you enjoyed it!

Keith felt you did a nice comparison on index cutters versus the brazed carbide ones. Eventually we need to get into some phone conversation, I'd like to share some additional thoughts, about brazed tools. Also have a nice Easter 🐣 day, my friend ....

@BladesIIB

3 жыл бұрын

Thanks, Happy Easter to you as well.

Most excellent.

@BladesIIB

5 ай бұрын

@6NBERLS - Thanks! Appreciate the feedback and the comment.

That was a good comparison Cheap too!

@BladesIIB

2 жыл бұрын

Gridley County Ford, Inc. - Thanks for the comment. Glad it was helpful. Happy New Year!

Great video. Thanks for taking the time to explain and demonstrate all that. Quick question about your grinding set up, how were you able to stack a silicone carbide wheel and a diamond dressing wheel on the same side of the grinder/buffer like you did??? Is that something that only works on a buffer? Did you machine a spacer to make that happen? I’ve never seen that before but that looks like a really efficient setup! Did you machine a spacer to make that work? Don’t think I have enough stick out on my grinder to do that so maybe I need a buffer to duplicate your setup? Thanks again for the video. This is the 1st video I’ve seen of yours but I’m definitely subscribing! Good stuff! 🤙

@BladesIIB

2 жыл бұрын

Collin Smith - Appreciate the comment and the feedback. Glad you liked the video. I actually stole the two wheel idea from a buddy and he has it set up on a grinder with proper guards and everything so it should work. I have another video on my channel with all the details for the spacers I made. Here is the link. It also has the size of the wheels. Hope this answers your questions. kzread.info/dash/bejne/aaBluqaega-9j5c.html

@mxcollin95

2 жыл бұрын

@@BladesIIB awesome! I'll check it out. Thanks.

Great video! What are the grits for the two grinding wheels used to sharpen the Carbide cutting tools? Thanks

@BladesIIB

2 жыл бұрын

Jon Murany - Thanks for the feedback, glad you liked the video. The Silicon Carbide wheel is a 6"x3/4" 80 grit wheel (Part # 35014 on Amazon). The Diamond Cup Wheel is a 5" and 150grit (Search Poltava 125/20 on Amazon and 125/100 grit on the box is equal to 150 grit). You can see more details on the wheels and the spacer kit to mount both of them together on another video on my channel where I make the spacers. kzread.info/dash/bejne/aaBluqaega-9j5c.html

Brazed carbide is good, cheap, and simple which I like. I usually stick to hss but Brazed carbide is easy to get surplus for next to nothing. There’s some surplus at a store near me that’s at least 30 years old. Made in Yugoslavia. It’s nice and sharp to begin with but doesn’t hurt to sharpen them more

@BladesIIB

2 жыл бұрын

Justin Toop - Thanks for the comment. Happy New Year!

Fantastic teacher. Thank you for such great content

@BladesIIB

2 жыл бұрын

Justin Brewer - Thanks for the comment. Glad the videos are helpful.

@justinbrewer8408

2 жыл бұрын

@@BladesIIB Would love your opinion on this. Back in High School I did 3 years of machine shop and welding and loved it. Now (years later) I want to get back in it as basically my main hobby. Ultimately I want to get to the point where I can chamber/thread my own barrels and mill 1911 slides, etc.. Basically home gunsmithing and random projects. I'm about ready to start putting together a shop but I'm in no super hurry and want to do it right and only once. My question is, where should I start for first machine? Lathe or Mill. Ultimately I'll need both but want to get the first one and focus on it for awhile before going to second machine. Plus that keeps the wife from griping too much. Anyway, thanks for your input and videos.

@BladesIIB

2 жыл бұрын

@@justinbrewer8408 That is a really tough question to answer, and if you go to somewhere like The Hobby Machinist forum www.hobby-machinist.com you will see this is discussed and debated a lot. That said, I will do my best give my thoughts on this. Think of what you want to do the most of first and realize that without both a mill and a lathe you are likely to get stuck somewhere. I find the mill is more versatile in the long run but it won’t chamber and thread a barrel for sure. Another consideration is will you be making any parts for money? Which machine could you make some money with easier and it could help pay for the other machine. If strictly a hobby then not a factor. Finally tooling is a big consideration and I think I have more money spent on mill tooling than I do on lathe tooling. By the time you buy an index head, maybe a rotary table and all the various end mills etc. if you are planning to go slow and spread the budget out I would also recommend going larger than what you think you will need. The smallest machines are often not as rigid as the larger ones and it seems you always need a little more. I am not sure I gave you an answer but hopefully I have you some points to consider. I would recommend checking out the Hobby Machinist forum and you can read about others opinions on this. There are several with smaller lathes and mills than mine who are very happy. So hard to figure out what will be the best choice for someone. Truly an exciting journey you are starting though. Life skills that are very challenging and satisfying. Stay in touch, happy to continue to offer support where I can.

@justinbrewer8408

2 жыл бұрын

@@BladesIIB Thanks for your input on this. I've been following the Precision Mathews thread on that forum and definitely it's been a great resource. One last quick question if thats ok. Ive been checking out the PM 1236 and PM 1236T as well as the 728VT in a milling machine. Do you feel like the extra spent on the Taiwanese machines is probably worth it in the end? Seems like the extra up front cost does bring some upgrades as well as longer warranty in regards to the milling machines. Thanks again man, really appreciate your advice.

@BladesIIB

2 жыл бұрын

@@justinbrewer8408 In my opinion, and to some extent my experience, yes, I believe the extra money for the Taiwanese models is worth it. The quality of the castings and the quality and consistency of the fit and finish seems to be significantly better. Looking through reviews it comes down to probabilities. Every once in a while you find a review of a non Taiwanese model that someone was happy with out of the box, usually they talk through what they did to "make it workable". Contrast to every once in a while you read about a Taiwanese machine that was not good out of the box and typically the warranty will replace any defective part and "make it right". To me the probability of being happy from the start is much higher and same over time. I have been very happy with my PM lathe and their quality and customer service get consistent high reviews. The 728VT looks like a good machine, if you have the room I would really consider the 833TV. That is very similar size to the Jet I have and I am not sure I would go much smaller. For the lathe, I personally don't do any gun smithing but reading about those who do, the PM GT model lathes seem to be very popular. You may want to look at the 1340GT and see if the few hundred extra is worth it? I have not read as much about the 1236T so maybe the features are more similar than different. In our current environment wait times can be long so order early! Thanks for the questions, I hope the information is helpful as you are planning your shop.

Awesome video thanks

@BladesIIB

2 жыл бұрын

Giles Roger - thanks for the comment. Glad you liked it.

@LetsRogerThat

2 жыл бұрын

@@BladesIIB I struggled all day with a piece of 1045 using carbide brazed tools. I finally know what to do. Your video was invaluable to me 👍🏼

@BladesIIB

2 жыл бұрын

@@LetsRogerThat That’s a great story, thanks for sharing.

Thank you for the video. Very helpful. Can you tell me what Grit your Silicon Carbide Wheel is please?

@BladesIIB

Жыл бұрын

Darin Jordan - Thanks for the feedback, glad you liked the video. The Silicon Carbide wheel is a 6"x3/4" 80 grit wheel (Part # 35014 on Amazon). The Diamond Cup Wheel is a 5" and 150grit (Search Poltava 125/20 on Amazon and 125/100 grit on the box is equal to 150 grit). You can see more details on the wheels and the spacer kit to mount both of them together on another video on my channel where I make the spacers. kzread.info/dash/bejne/aaBluqaega-9j5c.html

Good job man love u from India Punjab Amritsar

@BladesIIB

Жыл бұрын

Bhartveer Singh - Thanks for the comment and shout out from India!

Thanks for posting. Unless I missed it, what is the grit on the diamond wheel and the silicon carbide wheel?

@BladesIIB

3 жыл бұрын

Tom, apologies for not including those details in this video. They are in the video where I made the spacers and mounted both wheels. The silicon carbide wheel is CGW 80 grit (search 35014 on Amazon) and the diamond wheel is 125/100 which means 150 grit as I understand it. Search Poltava 125x20 currently out of stock on Amazon I only see the 6”. If you check out my other video it has all the details on the wheels. Thanks. kzread.info/dash/bejne/aaBluqaega-9j5c.html

Thanks for the great informative video. Just wondering how coolant or cutting oil would change that surface finish??? Please keep up these videos they are great for the hobbiest and maybe even the professionals might learn something.👍

@BladesIIB

2 жыл бұрын

Reamer1 - thanks for the comment and great question. Will have to try that sometime and compare.

I like your grinder set up, simple, 2 wheels 1 arbor. What wheels are those would you recommend?

@BladesIIB

2 жыл бұрын

Axa Axa - Thanks for the question. The wheels I am using are the following: Silicon Carbide wheel is a 6"x3/4" 80 grit wheel (Part # 35014 on Amazon). The Diamond Cup Wheel is a 5" and 150grit (Search Poltava 125/20 on Amazon and 125/100 on the box is equal to 150 grit). You can see more details on the wheels and the spacer kit to mount both of them together on another video on my channel where I make the spacers. kzread.info/dash/bejne/aaBluqaega-9j5c.html. I hope that gives you what you need.

@axa.axa.

2 жыл бұрын

@@BladesIIB yes. Thanks for answering

I’m curious your thoughts on line boring with inserts vs brazed carbide. I have had a lot more luck with the brazed carbide. I feel like I wasted a ton of money on the inserts.

@BladesIIB

Жыл бұрын

Ross Browning - Thanks for the question. 30 years ago I did hundreds of hours of line boring with brazed carbide. That was before the variety of inserts available today so I never tried inserts for line boring but I did have great results with brazed. I think the nose radius on inserts may need more speed to keep chatter down. I like being able to modify the brazed to suit the job and line boring set up. Sounds like your experience is similar. Don’t find to many people familiar with line boring. Fun work. Cheers.

hi thanks for the video really appreciated this. I'm a 73 year old newbie. Is it possible to take the carbide off of the pool and put a new piece on. How would you do it?

@BladesIIB

Жыл бұрын

Santo Pezzotti - Congrats on getting started in machining. You will love it. Yes you can take the carbide off and put a new piece on but not very cost effective on a standard shank. For a custom boring bar or some other custom tool it would be more common. The carbide is silver solder or silver brazed on, hence the name brazed carbide. A torch and some silver solder and you are all set. The silver solder typically used comes in a flat piece like shim stock. Cut a piece the size of your carbide and set it between the carbide and shank. Add heat and it melts in place and secures the carbide. Hope that answers your question.

I wonder if you could lock them into an indexable position by replacing the dog point set screws in your toolpost holder with cone point set screws, then carefully put indexing divots in the tops of your brazed carbide tools....

@BladesIIB

2 жыл бұрын

KileenGhia - I am not sure I follow. These are not meant to be indexable. Even if you put divots in the tops each time you sharpen the tool you would be changing the length?

Subscribed 👍

@BladesIIB

Ай бұрын

@lowridingtrucks88 - Thanks for the sub, hope you enjoy the channel.

Great

While a lot of the import brazed tooling does have the problem that it's either completely unground or ground in an unusable way, The much more expensive American-made stuff like Micro-100 or even older stuff that you find cheap online is typically good to go as is. I have a couple boxes of TRW brazed tooling, new old stock that's probably 50 years old, and those tools are just ready to pop into the tool holder. I've given them a pass or two on a grinder to customize the clearance in a couple of cases, but generally speaking they just work.

@BladesIIB

2 жыл бұрын

Paul - glad you have had good luck with yours. I have always tweaked mine even when new, likely just because that is what I was taught or told to do. I did find it fascinating how many people today toss them when dull like an insert rather than sharpen them over and over.

I was given hands full of old style insert tip by a friend who ran a large engineering shop and went the braized on way

@BladesIIB

2 жыл бұрын

Dan Hayward - Old style or not if you have a holder for those inserts that is a good friend. Those are not cheap and they are great for roughing and removing lots of material. Depending on the insert they can do finish cuts as well, sometimes just need to take a heavier finish cut. Enjoy!

One very important fact about brazed carbide is that the insert is not coated. So if you have multiple parts to cut or if you are sharpening the edge of the insert to a very sharp edge they will dull very quickly or chip. Indexable inserts that are not coated are typically for non ferrous material like aluminum. Those inserts are ground to a very sharp edge and then honed so the edge does not chip. Indexable inserts most always have a formed chip breaker to assist in breaking the chip. Cemented carbide does not, you have to grind that in. The only time you don’t really need a chip breaker on a indexable insert or cemented carbide is when your machining cast iron.

@BladesIIB

Жыл бұрын

PTV - Thanks for the comment very good points to consider. No coating does mean they will fill faster, the trade off is you can sharpen it in minutes and go again for no cost. Not trying to claim they are better than inserts, just trying to help point out the trade offs. For me they still have a place for that unique shape or one off need where I don’t have an insert and can’t justify the cost for a one time use.

Could i braze a piece of carbide to a rotary blade for a mower attachment like a sling blade

@BladesIIB

4 ай бұрын

@Justthemow - I don’t think this would be worth it. Carbide is very brittle compared to the steel in mower blades. The first good hit on a rock or other hard material would likely destroy it beyond sharpening. Obviously I have Berber tried this, but that is my thought on it. Thanks for the question.

When I found the video on a machinists subreddit I was hoping I would learn about how to sharpen brazed tools. Instead, I have learned that brazed tools can be sharpened "like so". I was expecting to learn what is the size of the relief and rake angles is. By the way, In my home shop I sharpen the inserts too. Mostly old fashioned inserts that do not have chip-breaking grooves at the top.

@BladesIIB

3 жыл бұрын

Fair comment, sorry the video did not give you what you needed. I don’t get to wrapped up in the exact angles when sharpening mine. The options are infinite. Just find the balance where you minimize the angle to maximize support under the cutting edge. The angle can change based on the diameter you are turning. Experiment and see what works best for you. Same with the radius on the point. More radius for roughing will increase tool life and less for finishing cuts. Hope that adds a little. Appreciate the feedback.

@johncmitchell4941

Жыл бұрын

Five degrees clearance is fine for the carbide part. Think of it as a 'primary facet' (trade talk) and grind a secondary if/as needed. (eg: Boring bar) Side rake & relief are good but top rake is typically zero with these tools. It makes resharpening easier and like with inserts there's no tweaking/shimming the height if taking it out of a QC holder & back as with HSS ground with top rake. Gotta touch one up between cuts? Only need to re-zero 'Z'. btw, IMO a sharper point (w/.005-.010 corner break) somewhat makes up for low rpm and typical insert corner radii to get a good finish on light finishing or spring passes. BTDT

Which brazed tool is tougher, P10, P20 or P30?

@BladesIIB

Жыл бұрын

Lucian - Thanks for the question. The letter designates the application/material and the numbers given in carbide's designation are conventional symbols. As the number increases, so does the malleability of carbide grade, while its wearing quality decreases. So the P10 should be tougher but more brittle. Good for harder material but will likely chip or break easier with an interrupted cut. Hope that helps.

I heard that brazed carbide is four times harder than sintered inserts ( useful if you're turning a casting covered with zirconia sand....) I use a green grit grinding wheel, then finish with a ultra fine CBN hone, worth it's weight in gold, it's easy to get a mirror finish with a tool sharpened with it. They use brazed carbide tools where I work for ruffing bad lumpy castings, it's cheaper to replace a bashed brazed tool than a bashed insert tip holder. You use a bench grinder without it's guards on ?

@BladesIIB

2 жыл бұрын

MustachioedW 000 - Thanks for the comment. Great to hear how others use brazed carbide tooling. As to the grinder with no guards, I don’t recommend that and will be more thoughtful trying to address that safety point any time it is in a video. I discuss it more in my video where I built the spacer kit to mount both wheels. My grinder is actually a buffer that I use for many things and it did not come with any guards. For safety, I would recommend guards if whenever possible.

@836dmar

Жыл бұрын

joe, In the world of shop tools, the guard thing is indeed low hanging fruit. I have both with and without as most with many grinders do. Do you build custom guards for your cup wheels and oversized grinding or polishing wheels? Next up would be buying a specialized T&G machine for that - few can do that. I think most understand that it is best to use a guard on spinny things.

@joejoejoejoejoejoe4391

Жыл бұрын

@@836dmar I have made a guard for a polishing wheel, but in all honesty it's because of works health and safety ( quite strict in the UK ) and because I use it on a daily basis. I always use guards on a bench grinder, but I've always used standard wheels. I think if I wanted to use cup wheels, I'd get a cheap grinder ( £ 35 ) and because I'd want to make a tool rest for it, it wouldn't be much more work for make a guard. Having said all that, we've all done stuff we shouldn't have done. I've got an angle grinder without a guard, but I only use it with flap discs, I'd never use it with grinding discs.

@836dmar

Жыл бұрын

@@joejoejoejoejoejoe4391 yeah. I tend to stand to the side we of most spiny things anyway. I’m unable to hold a consistent angle without a rest or something to brace against. The rests with most newer bench grinders are pretty flexible but maybe because I’m not letting the tool so the tool do the work.

I find in general that a small lathe cannot really handle the small tip radius that most indexible inserts have. So the brazed tools make a lot of sense to me.

@BladesIIB

5 ай бұрын

@984francis - Thanks for the comment. Yes being able to grind them how you need for your machine should give you some options.

I must be old because I still use hss blanks to make my cutters

@BladesIIB

4 ай бұрын

@kylebrown8891 - HSS still works, but try some carbide. Need a different wheel but essentially grinds up the same and it is a harder material and cuts well. 😁

Not mentioned but results show that making carbide work harder 5 thou vs 10 thou you get a better result with a heavier cut. I think this is why with mini lathes its harder to get a real good finish with inset tools than say hss as you cannot or are not making the carbide work hard enough due to lathe restrictions.

@BladesIIB

Жыл бұрын

Derek Greenhalph - all good points, inserts especially like to be pushed a little more especially as the nose radius increases. I will say even on a mini lathe, in my experience when I need to take a very fine 1-2 thou cut I have had better luck with a very sharpened brazed carbide vs HSS. But maybe I just don’t sharpen the HSS well enough since I use it so rarely? Thanks for the comment.

You missed the Whole line of brazeable carbide like YB-6 inserts that are brazed by owner, at $1.25 an insert that's why the rest of the world uses them. Their thicker and many different shapes along with different carbide specs, ie cast iron, or steel, etc. Even with that omission, good video, I use YB-6 exclusively myself because of cost. Much cheaper!!!!!!!!!

@BladesIIB

5 ай бұрын

@stewartfrye - Great point, brazing your own carbide to a tool post of your choice definitely increases the customizability and flexible options brazed carbide can offer, especially for boring options. Also, correct that I have not seen anyone doing that lately. Even the shop I worked in 30 years ago did very little brazing to create our own tools. I do have a flat sheet of sliver solder still in my tool box just for that purpose, but have not pulled it out in 30 years. Appreciate the comment and the feedback.

Where can I get one of those diamond cup wheels?

@BladesIIB

2 жыл бұрын

Jay God - Thanks for the question. I purchased both wheels on Amazon, and you should be able to find them from several others sellers. The Silicon Carbide wheel is a 6"x3/4" 80 grit wheel (Part # 35014 on Amazon). The Diamond Cup Wheel is a 5" and 150grit (Search Poltava 125/20 on Amazon and 125/100 on the box is equal to 150 grit). You can see more details on the wheels and the spacer kit to mount both of them together on another video on my channel where I make the spacers. Hope this answers your question and gives you all you need. kzread.info/dash/bejne/aaBluqaega-9j5c.html

@jaygod6140

2 жыл бұрын

Thanks for all the great information 👍

@BladesIIB

2 жыл бұрын

@@jaygod6140 Anytime.

Ale talib 😀

you can get inserts for brazing for around 1 dollar each on aliexpress ..same model they use in the pakistan videos .. if you have that skill and equipment..

@BladesIIB

Жыл бұрын

Matthias Arvidsson - Good to know, thanks for the comment.

silicon carbide and diamond cup wheel on the list,i too thought brazed tools were crappy cheap,not so. EYE OPENING.

@BladesIIB

2 жыл бұрын

john amptech - Glad you found it helpful, thanks for the comment. If you have wheels on order I hope you have found the other video on my channel with the spacers set to be able to mount both wheels on the one spindle like I have. Here is the link if you are interested. Good luck with your set up, I think you will be pleasantly surprised. kzread.info/dash/bejne/aaBluqaega-9j5c.html

@pir869

2 жыл бұрын

@@BladesIIB yep,i watched some of it,but i'll see it all asap,had to shut off pc,not due to vid content,abrasives on order.

🙌🙌

@BladesIIB

Жыл бұрын

Anthony Wilcox - Thanks!

@anthonywilcox8916

Жыл бұрын

Well I'm new to a minilathe...guys like you save me a lot of time!

@BladesIIB

Жыл бұрын

@@anthonywilcox8916 Glad to hear the videos are helpful. Several other manual lathe videos on my channel. All the best with your new mini lathe. Never ending fun and learning.

Good video, enjoyed it. I would strongly recommend you wear a mask while grinding that carbide. Those stones throw a lot of dust while grinding carbide as it wears them rapidly. I just about ruined my lungs doing this.

@BladesIIB

Жыл бұрын

AKTrapper - I appreciate the comment and that is a great safety point you make. I wear a respirator for a lot of the material I grind for knife handles and especially for buffing. Makes sense I should put it on for grinding carbide as well. Thanks for looking out!

I'm no Machinist but I'm pretty sure that when they cut something they don't just leave it like that I'm pretty sure they take some kind of a Emery cloth or buffing compound or something to it before they call it finished even when they paint a car before you ever get to see the paint job they color sand and buff it 2000 McGuire compound and buffing pad

@BladesIIB

5 ай бұрын

@michaelthomas788 - Yes, I use emery to finish most of my parts as well. Just showing what the cutting tool was doing for this video. The better the tool cuts, the less emery finish work to get what you want. Thanks for the comment.

Also every last video that I watched you're one of the few that does not put cutting oil on their workpiece before they start cutting into it and that might have something to do with your finish

@BladesIIB

5 ай бұрын

@michealthomas788 - For CNC machines coolant is pretty standard for all cutting. For manual machines, I use coolant sometimes. I typically only use cutting fluid when cutting threads. The beauty of machining, so many different ways to do it. Appreciate the comment.

Can't you heat up the brazed tool remove the piece drill an tap a hole so you can attach inserts?

@BladesIIB

3 жыл бұрын

Michael, I suppose you could just not sure why you would want to? There is a little more geometry involved in a good insert tool holder. If you want to run inserts I would recommend getting the proper holder for them.

“Just a quick one today”..27 minutes later 😁

Your sharpening would be much better if you made some rests to support the tool. Safer, probably better for the abrasive wheel and definitely the diamond. Brazed carbides were widely used when I was in manufacturing decades ago, before inserts became popular.

@BladesIIB

Жыл бұрын

Bill Davies - thank you for the comment. Yes tool rests are a good idea for sure. With my knife making I do a lot of free hand grinding but it is not for everyone. I use a lot of inserts but like you 30 years ago when I was machining full time we used mostly brazed carbide and a couple inserts. Now I use a lot of inserts but still like brazed carbide for those specialty tool needs where an insert is not worth the investment for a hobby guy like me.

Only time i despise brazed is clocking up multitooth cutters... grinding 65 teeth all to the same+-0.001mm? Oh, yeah, and those odd moments they go CRUNCH. Otherwise... Get a bunch of diamond wheels, and start grinding. If its too hard for hss, that carbide is a lifesaver. My other favourite is stellite. Occasionally find it in lots from old guys. Carbide sort of came out two years after it and yeah... got left behind... I started on brazed carbide. Its delicate, but also can take a massive pounding... gotta know about lands, microfractures, blah blah... grinding technique is crucial. A big issue is that you very rarely get info on the GRADE of carbide used. Fun fact. 99% of it is NOT tungsten. Tantallum, tellurium, along with others are more common. Tungstens mostly for rock stuff. Doesnt work so well on cutting metal.

@BladesIIB

Жыл бұрын

Paradise Lost - Great comments, and could not agree more about multitooth cutters, that is where inserts truly steal the show. For the one off oddball stuff though, I do still love having brazed carbide as an option vs. spending all the money for an insert tool I may only use one time. I recall using Ceramic back when I first started machining and using carbide inserts, maybe that is the same or similar to the Stellite you mention. Was great for finishing, but as you say, delicate for interrupted cuts and roughing. Cheers!

@paradiselost9946

Жыл бұрын

Stellite is the in between. Harder than hss but not as brittle as carbides. High tungsten alloy. Mostly found use in hardfacing valves. If it had a few more years before carbide would be more popular.

@BladesIIB

Жыл бұрын

@@paradiselost9946 Gotcha. In that case, I am not familiar. Don’t recall ever seeing that in use in the shop I was in. Thanks for sharing.

That tearing surface finish with the inserts is merely a result of a too low depth of cut for that insert style.

@BladesIIB

5 ай бұрын

@JaakkoF - Thanks for the comment. Makes sense. Another good reason why I like to have a variety of tools for different tasks. The brazed carbide allows me to make a sharper tool when needed for those finer cuts. I love inserts but try to keep my inventory to a few styles due to the cost and type of work I am doing.

Now just imagine doing that with a tool cutting grinder and can continue the grind

@BladesIIB

Жыл бұрын

Joseph lovell - Sounds like that would work well, thanks for the comment.

How in the hell you turn off the grinder and instantly stop spinning? 🤔🤔

@BladesIIB

5 ай бұрын

@iguanarapido2552 - Just a little video editing magic. It is loud to talk over and it runs a while so would make the video way too long if I waited for it to stop on its own before talking. Thanks for the comment.

We are manufacturer of Carbide brazed tools,hope we canwork together.

@BladesIIB

Жыл бұрын

Gary Geng - Thank you for the comment. You are welcome to reach out through the contact me link on my website. www.BladesIIB.com

Same speed and feed on the 10 thou cuts? Doubt. I thought the feed looked way slower, so I went back and timed it. 4 seconds to do the entire 10 thou cut with the brazed. 7 seconds to do the insert cut, and it was only half the distance. Obviously your gunna birdnest anything at .001 feed rate. lmao

@BladesIIB

2 жыл бұрын

D - Thanks for the comment, if you listen to the lathe you will also notice it sounds different, I did not speed up the video the same amount for both cuts. As I am sister you are well aware, Inserts are designed for heavier cuts and with a heavier cut inserts should deliver the better finish. Was just showing that on a light cut you can often sharpen the brazed carbide with less radius and get what you need. I am sure there are also other inserts available that would perform better. Not every hobby guy will have every insert option. Just trying to show what else I use when I need a different tool. Brazed carbide works well for me when I don’t have the insert I need for the job.

There is no comparison between brased tools and inserts. With 4 holders for inserts you can do over 90% of all turning operations. A 95° tool like you have, it can face turn and turn diameters or tapers. A basic all round tool. Then a trianglar tool for finishing and undercuts. Parting of tool for grooves and parting off, you can even turn with modern parting off tools. Threading tool. For internal work you will need two or three boring bars. Then you have a tremendous choice of inserts for different operations Roughing, finishing, parting off and radius turning. Then chip control, no comparison. Different grades for different materials, Different nose rads. Different geometry's for heavy cutting and light cutting. Postive and negative inserts There is no way it is possible to hand grind brased tools with the accuracy of a pressed insert. Forget brased tools Get a few tool holders and some general inserts and then buy inserts for special difficult operations.

@BladesIIB

5 ай бұрын

@derekpresland4029 - I believe I agree with what you are saying. I do 90% or more of my turning with inserts. I tend to just used brazed carbide for those other 10% of operations where it does not make sense to me to invest in an insert. Large radius, tight spot etc. For me they just give me that little extra versatility when I need it. Thanks for the comment.

@derekpresland4029

5 ай бұрын

@@BladesIIB Thanks, I missed a couple of points that speak for based tools and even high speed steel. Sharpness. You probably know this, inserts are made from a powder that is pressed in a form and then sintered, heated up so that the powder becomes a solid insert. The grain size of the powder is critical. It gives a microscopic jagged edge. To stop the tiny pieces of carbide from becoming detached from the insert edge prep is put on the cutting edge. A tiny radius. A insert is never truly sharp. Brased tools can be much shaper and high speed steel even sharper. Like you say there are turning operations or milling for that matter when you just can't use inserts. Good discussion.

@BladesIIB

5 ай бұрын

@@derekpresland4029 Thanks for the additional insight and comments. And yes, good discussion indeed.

Using a buffing machine with two grinding wheels attached to one side with no guards and no tool rest is just asking for an accident to happen.

@BladesIIB

Жыл бұрын

Richard Moore - I 100% agree that proper guards and tool rests are the right way to use this equipment. In the video where I show making the spacers to mount both wheels I show a proper grinder set up with the guards and tool rests in place. Thanks for the comment.

@EricTViking

Жыл бұрын

@@BladesIIB Stay safe friend.

@BladesIIB

Жыл бұрын

@@EricTViking I will do my best for sure. Thank you.

JC 10 minutes of babble before he even starts to talk about sharpening the tool!

@BladesIIB

5 ай бұрын

@vmitchinson - I always appreciate feedback. Hopefully my newer content has improved.

Kamlesh industries

Heads up... Skip to 26 minutes wben he gets to the point ! 👍

Great video and information. One thing that would make it MUCH better, please don't shout. It is actually difficult to listen to. A normal tone of voice would improve your videos immensely.

@BladesIIB

2 жыл бұрын

ZippyZorch - I appreciate the feedback and have had that shared before. This is an older video, hopefully if you look at one of my more recent videos you will see an improvement in the audio. I will continue to work on improving. Bud

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