分析了变形程度、打击速度与锻件密度之间的关系。
The relation between the deformation degree, blow speed and forging density was analysed.
其优点在于重量 轻，不易折断，能够有效提高打击速度。
The quicksand baton is characterized in that is the quicksand baton is light and difficult to break and can improve striking rate effectively.
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 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.
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