一、为什么要进行冲裁间隙试验 我厂原选用的冲裁间隙是根据《冷压冲模设计》一书中关于间隙的规定选取的,此书中规定的间隙对于板厚2mm以下的金属材料均在料厚的10％以下。我厂冲制的材料多为0.5mm左右,过去在模具制造中出现的啃口、凹模开裂、落料堵塞,尺寸超差,毛刺严重、小凸模折断、模具寿命短等质量 First, why blanking gap test I used the original choice of blanking gap is based on “cold stamping die design,” a book on the provisions of the provisions of the gap, the book provides the gap for the thickness of 2mm below the metal materials are In the material thickness of 10% or less. I plant more than 0.5mm punching materials for the past, in the past in the mold manufacturing appear gnawing mouth, die cracking, blanking blockage, size tolerance, burr serious, small punch broken, short die life and other quality