凹模或凸模的镶拼方式是镶拼式冲模设计中最为棘手的问题。确定镶拼方式时,应注意下列基本原则。 1.拼块、镶件的横截面应取正方形、矩形等简单而规则的形状。 2.确定镶拼方式时,最好只使其中一块拼块需进行切削加工,而其余拼块不需切削加工或只需少量切削加工。 3.拼块数量宜少。然而,为便于切削加工或热处理,有时则增加一次分割为好。 Die or punch inlaid mode is the most intricate die design problem. Determine the mosaic style, should pay attention to the following basic principles. 1. Pieces, inserts cross-section should take square, rectangular and other simple and regular shape. 2. To determine the mosaic style, it is best to make only one of the pieces need to be cut, while the remaining pieces do not need cutting or only a small amount of cutting. 3. The number of pieces should be less. However, for ease of cutting or heat treatment, it is sometimes better to divide once.