upsetting test of tubes 管子的压短试验
The upsetting test of metal powder sintered preform by blow speed of the hydraulic press, crank press, pneumatic hammer and high energy rate forging hammer was reported.
研究了用液压机、曲柄压力机、空气锤及高速锤的打击速度对粉末冶金烧结体进行的镦粗试验。
The technological parameter of heat deformation was confirmed by the test of Upsetting technology, and the isothermal stamping was studied.
通过镦粗工艺试验，确定了该材料的热变形工艺参数，并对其进行了等温模锻工艺研究。
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