Manufacturing Engineering And Technology
7th Edition
ISBN: 9789810694067
Author: Stephen R. Schmid (author) Serope Kalpakjian (author)
Publisher: Pearson Education Orphans
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Chapter 14, Problem 40QTP
A solid cylindrical specimen, made of a perfectly plastic material, is being upset between flat dies with no friction. The process is being carried out by a falling weight, as in a drop hammer. The downward velocity of the hammer is at a maximum when it first contacts the workpiece, and becomes zero when the hammer stops at a certain height of the specimen. Establish quantitative relationships between workpiece height and velocity, and make a qualitative sketch of the velocity profile of the hammer. (Hint: The loss in the kinetic energy of the hammer is the plastic work of deformation; thus, there is a direct relationship between workpiece height and velocity.)
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Chapter 14 Solutions
Manufacturing Engineering And Technology
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