合理的模具設(shè)計。在級進模中,下料順序的安排有可能影響到?jīng)_壓件成形的精度。針對沖壓件細小部位的下料，一般先安排較大面積之沖切下料，再安排較小面積的沖切下料，以減輕沖裁力對沖壓件成形的影響。

Reasonable mold design. In progressive die, the order of blanking sequence may affect the accuracy of stamping forming. In order to reduce the impact of punching parts, the punching and cutting blanking of small area is arranged in the light of the blanking of the small parts of the stamping parts.

增設(shè)強壓功能。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。

清除沖壓機床滑塊底面、工作臺面（或墊板平面）以及模具的上、下模座平面內(nèi)的任何雜物或異物。手工扳動沖壓機床飛輪（或操縱點動按鈕），調(diào)整上滑塊到上死點位置，并轉(zhuǎn)動調(diào)節(jié)螺桿，將連桿長度調(diào)到短（即閉合高度大）。

Remove any material or foreign object on the bottom of the stamping machine slide, working table (or pad plane), and the upper and lower die base of the mold. Manually pull the stamping machine flywheel (or point moving button), adjust the upper slider to the upper dead point, and rotate the adjusting screw, the length of the connecting rod to the shortest (i. e. the maximum height of the closed height).