增設(shè)強(qiáng)壓功能。即對卸料鑲塊壓料部加厚尺寸(正常的卸料鑲塊厚H 0.03mm)，以增加對凹模側(cè)材料的壓力，從而抑制沖切時沖壓件產(chǎn)生翻料、扭曲變形。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。

日常模具生產(chǎn)中，應(yīng)注意維護(hù)沖切凸、凹模刃口的鋒利度。當(dāng)沖切刃口磨損時，材料所受拉應(yīng)力將增大，從而沖壓件產(chǎn)生翻料、扭曲的趨向加大。

In daily mold production, attention should be paid to sharpness of punching and concave die edges. When the cutting edge is worn, the tensile stress of the material will increase, and the stamping and bending will increase.

將閉合的模具放置于雎力機(jī)工作臺或墊板上適當(dāng)位置，如果使用氣墊，先要放好頂桿，并標(biāo)記好模具的擺放位置。

手動扳動沖壓機(jī)床飛輪（或操縱點(diǎn)動按鈕），使機(jī)床上滑塊下行并停于下死點(diǎn)位置。

Place the closed mould on the bench or pad of the mandrel machine. If the air cushion is used, the ejector pin should be placed first and the placement of the mould should be marked.

Manually pull the flywheel of the stamping machine (or  the moving button), so that the slider on the machine tool will be downhill and stop at the bottom dead center.