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在航空、电子、仪表及一般机械制造工业中,冲裁件的品种及数量都很多。有的冲裁件对精度、光洁度和平整度无特殊要求,采用大间隙(一般单面间隙为料厚的12％左右)冲裁模可以解决问题;有的冲裁件则不然,如: 1.对于料厚为0.5～5毫米的冲裁件,精度、光洁度和平整度要求高时,使用常规冲裁模达不到要求。 2.对于0.01～0.5毫米薄料冲裁件,要求无间隙冲裁,由于间隙小,模具制造和修理都费工费时,往往达不到要求,特别对于形状复杂的,困难更多,不但要求凸凹模制造精度
In the aviation, electronics, instrumentation and general machinery manufacturing industry, blanking parts variety and quantity are many. Some blanking pieces of precision, smoothness and smoothness no special requirements, the use of large gaps (usually single-sided gap for the material thickness of about 12%) blanking die can solve the problem; some blanking pieces are not, such as: 1 For blanking pieces with material thickness of 0.5 ~ 5mm, the precision, smoothness and flatness requirements are high, the use of conventional blanking dies can not meet the requirements. 2. For 0.01-0.5 mm thin blanking parts, blanking without gaps, due to the small gap, the mold manufacturing and repairing are time-consuming and often do not meet the requirements, especially for the complex shape, more difficult, not only required Punch and die manufacturing precision