• 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.

    研究液压机曲柄压力机、空气锤高速打击速度粉末冶金烧结体进行的镦粗试验

    youdao

  • 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.

    研究液压机曲柄压力机、空气锤高速打击速度粉末冶金烧结体进行的镦粗试验

    youdao

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