凸模刃口端部修出斜面或弧形。這是減緩沖裁力的有效方法。減緩沖裁力，即可減輕對凹模側(cè)材料的拉伸力，從而達(dá)到抑制沖壓件產(chǎn)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.

手鋸鋸削的注意事項(xiàng)

鋸條的松緊要合適，且鋸割時(shí)壓力不能太大，以防折斷傷人；

當(dāng)鋸縫歪斜時(shí)，不可急于糾正，而需要慢慢地逐步糾正。

Notice of hand saw cutting

The tightness of the saw blade should be suitable, and the pressure should not be too large during sawing, so as to prevent breaking and hurting people.

When the SAW seam is skewed, it can not be corrected in a hurry, but it needs to be corrected gradually.

檢查、核對模具和沖壓機(jī)床。在安裝模具前，要確認(rèn)沖壓機(jī)床為沖壓工藝的型號，并檢查模具的尺寸、工作要求是否與沖壓機(jī)床的技術(shù)參數(shù)（裝模高度、滑塊行程等）相匹配，沖壓機(jī)床的狀態(tài)足否良好。

Check and check die and stamping machine. Before installing the mould, it is necessary to confirm that the stamping machine is the designated type of the stamping process, and check the size of the die and the work requirements to match the technical parameters of the designated stamping machine (the height of the die, the slider stroke, etc.), and the state of the stamping machine is good or not.