metal casting riser design solved problems | A riser in the shape of a sphere is to be designed
A riser in the shape of a sphere is to be designed for a sand-casting mold. The casting is a rectangular plate, with length = 200 mm, width = 100 mm, and thickness = 18 mm. If the total solidification time of the casting itself is known to be 3.5 min, determine the diameter of the riser so that it will take 25% longer for the riser to solidify.
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Can you derive for me this formula L=√R(h-h). And work for me one example on this
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