In this paper a kind of die resistances of oscillatory plastic working process was analyzed in which the oscillatory of dies had the same direction with worked metal flow.

本文分析了模具振动方向与被加工金属的流动方向相同的一类振动塑性加工系统的模具阻力。

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The application of plastic deformation instead of cutting is capable of increasing efficiency and strength of the pieces worked in metal-working.

金属的加工，采用使被加工金属的塑性变形来代替切割，可增加加工效率和被加工件的强度。

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A kind of whole plastic clothes-pin mold is introduced, for this clothes-pin, it needs no metal spring, with low manufacture cost and long using ages, also, the mold has a long working life.

介绍了一种全塑料的衣夹模具，该衣夹无需金属弹簧，生产该衣夹成本低又耐用，模具寿命长。

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Through the doors, women working as outsourced workers for existing nearby factories can be seen putting handles on plastic bags and metal springs together.

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