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The total solidification times of three casting shapes are to be compared: (1) a sphere with diameter = 10 cm, (2) a cylinder with diameter and length both = 10 cm, and (3) a cube with each side = 10cm. The same casting alloy is used in the three cases. (a) Determine the relative solidification times for each geometry. (b) Based on the results of part (a), which geometric element would make the best riser? The mold constant = 3.5 min/cm2 in Chvorinov's rule.
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A gear blank has been successfully hot forged on a mechanical press in a closed die. At the beginning of a new production run
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why are tangent points so important when sketching, drawing on paper with instruments, or using cad?
estimate the diameter of an aluminum atom given that the density is 2.7 gramscubic centimeter and the atomic mass is
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