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。

沖壓件是靠壓力機(jī)和模具對板材、帶材、管材和型材等施加外力，使之產(chǎn)生塑性變形或分離，從而獲得所需形狀和尺寸的工件（沖壓件）的成形加工方法。沖壓和鍛造同屬塑性加工（或稱壓力加工），合稱鍛壓。

Stamping is a forming and processing method for workpiece (stamping parts) by applying external force to plate, strip, pipe and profile by press and die to produce plastic deformation or separation. Stamping and forging belong to plastic processing (or pressure machining).

簡單來說鈑金件是金屬薄板殼體，沖壓件就是用拉伸機(jī)或沖床等加工的工件1，鈑金件在折彎過程中厚度不會有變化，但在汽

車鈑金殼體中應(yīng)為敲擊等原因，一部分表面會有一定變化。沖壓廠是不能確定落料尺寸的，應(yīng)該是在定做模具時由模具廠試定出來的。

In a simple way, the sheet metal part is a metal sheet shell, and the stamping part is 1 of the workpiece, which is processed by a drawing machine or a punch press. The thickness of the sheet metal parts will not change during the bending process, but in the steam.

The surface of the automobile shell should be knocked and so on. Part of the surface will change. The stamping plant is unable to determine the blanking size. It should be determined by the mold factory when making the mould.