通常人们把设计模腔的工艺参数分成两大类。一类是线性工艺参数,例如制品出模后的回弹率、收缩和热膨胀系数等;一类是非线性工艺参数,如初压模为精压模留出的整形余量、制品上预留的机加工余量、制造模具时的研磨量等。而模腔的设计方法也因只考虑某一类工艺参数或两类工艺参数同时考虑而有所不同。 People usually divide the process parameters of the design cavity into two categories. One is the linear process parameters, such as products after the spring rate of recovery, shrinkage and thermal expansion coefficient; a class of non-linear process parameters, such as the initial die for the stencil residual allowance, the product reserved machine Processing allowance, the amount of grinding and other mold manufacturing. The mold cavity design method is also considered only because of certain types of process parameters or two types of process parameters while considering different.