[請益] upsetting process
figure 1 shows a plane-strain upsetting process. The process may also be
thought of as a form of side extrusion. It is reasonalbe to assume that the
deformation zone is analogous to plane-strain cutting. Based on this analogy
and assuming the deformation zones to be a shear planes(s), calculate the
pressure(p) required for the upsetting process of figure 1.
You may assume that there is no friction between the work material and the
tool/die walls; the uniaxial yield strength of the material is σy and
is independent of strain rate and tenperature; and the material behaves as
a rigid plastic solid.
圖如下(沒毒放心)
http://ppt.cc/8V!r
小弟不知如何下手，他又說是類似cutting的問題 但又upsetting process
他圖中的die又比workpiece小而且沒有原始的size 真不知如何下手
也不知他的process是如何進行
拜託各位大大解惑阿
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