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利用聚氨酯橡胶作为弹性介质,在冲裁中充当凸模或凹模。完成冲裁弯形拉伸等冲压加工工序,在国内外均有广泛的应用。 现就冲切模具在应甩和加工中经常出现的二些具体问题,予以分析并提出解决办法,以便在处理这类问题时作为参考。 一、零件压伤 对于塑性好,材料软,厚度薄(如0.05毫米以下的紫铜零件)(图1),冲裁时表面最容易压伤,主要表现为材料表面会出现各种微小的麻点,因此,对于加工这类零件时,如果产品零件表面光度有特殊要求的,就必须采取预防措施,对于产品图纸未作要求的,我们认
Polyurethane rubber is used as an elastic medium to act as a punch or die in punching. Complete punching bending bending and other stamping process, both at home and abroad have a wide range of applications. We now analyze and propose solutions to some of the specific problems that often arise in die blanking and processing, so as to be used as a reference when dealing with such problems. First, the parts crush For good plasticity, soft material, thin thickness (such as 0.05 mm copper parts below) (Figure 1), punching the surface most likely to be crushed, the main performance of the material surface will appear a variety of tiny pitting Therefore, for the processing of such parts, if the surface brightness of the product parts have special requirements, we must take precautions, for the product drawings are not required, we recognize