... piercing point穿孔顶头 piercing point bar穿孔芯棒 piercing punch冲孔冲头、冲孔阳模 ...
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The influences of the separating force and axial force of the piercing point bar on the wall thickness of the shell pierced, and on its lateral uniformity are analyzed quantitatively.
定量分析了穿孔轧制力和顶头轴向力对毛管壁厚及其横向均匀性的影响。
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