一、前言 4J29合金作为电真空、半导体器材及其他真空密封件的结构材料,在具备与硬玻璃相匹配的膨胀系数的同时,还需具有优良的机械加工性能。随着加工工艺技术的发展和现代化,许多形状复杂的结构件都以带材冲制零件时仍不时出现制耳(图2)、桔皮、开裂(图3)、摺皱(图4)等疵病,报废量有时也很可观。由此可见,迄今沿用的各常规机械性能考核方法包括深冲杯突值在内,均不能确切地表征合金带材的深冲性 I. INTRODUCTION 4J29 alloy, as the structural material of electric vacuum, semiconductor equipment and other vacuum seals, needs to have excellent machinability while having the expansion coefficient matched with hard glass. With the development and modernization of processing technology, many shaped parts are still made of stainless steel (Fig. 2), orange peel, cracking (Fig. 3), wrinkles Flaw, the amount of scrap is sometimes very impressive. Thus it can be seen that none of the conventional mechanical performance tests hitherto used, including deep cup cupping, can accurately characterize the deep drawability of the alloy strip