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bench worker 鉗(床)工(人)。

bench-made

Abstract : this paper explains the design of piercing die for steel tube , especially the manufacturing process using bench worker ' s experience to reduce the manufacturing cost . meanwhile , it also introduces the design of bending die for steel tube using the principle of take - out - slug , which can improve the work efficiency 文摘:介紹鋼管沖孔模具的設計,如何利用鉗工的操作技能來制造上、下沖孔模具,降低制造成本;以及不用抽芯塊的原理來設計鋼管彎曲模具,從而提高工作效率。