The upsettingtest 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。
2
The technological parameter of heat deformation was confirmed by the test of Upsetting technology, and the isothermal stamping was studied.