凸模刃口端部修出斜面或弧形。这是减缓冲裁力的有效方法。减缓冲裁力，即可减轻对凹模侧材料的拉伸力，从而达到***冲压件产生翻料、扭曲的效果。

The end of the punch is repaired with a bevel or arc. This an effective way to slow down the blanking force. By reducing the force of buffer， the tensile force of the side material of the die can be reduced， so that the stamping and twisting effect can be suppressed.

五金冲压件加工包括冲裁、弯曲、拉深、成形、精整等工序。冲压件加工的材料主要是热轧或冷轧（以冷轧为主）的金属板带材料，例如碳钢板、合金钢板、弹簧钢板、镀锌板、镀锡板、不锈钢板、铜及铜合金板、铝及铝合金板等。

stamping process includes blanking， bending， drawing， forming， finishing and other processes. The main materials for stamping parts are hot rolling or cold rolling (cold rolling)， such as carbon steel，fastener价格， alloy steel plate， spring steel plate，fastener种类， galvanized plate， tin plate，fastener哪家好， stainless steel plate， copper and copper alloy plate， aluminum and aluminum alloy plate.

槽钢的锯削：槽钢的锯削与扁钢一样，但是要分二次从宽边面往下锯，不能在一个面上往下锯，应尽量做到在长的锯缝口上起锯，因此工件必须多次改变夹持的位置。

Channel steel sawing: the channel sawing of the channel steel is the same as that of the flat steel，朝阳fastener， but it must be sawed down two times from the wide side， and can not be sawed down on one surface， and should be sawed on the long saw mouth as far as so the of the clamping must be changed many times.

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