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一、前言 4J29合金作为电真空、半导体器材及其它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取代了棒材车削加工,图一为带材冲制的部分结构件,它们的特点是形状复杂,壁厚较薄,几何尺寸和表面质量要求严格等等。为满足使用要求,除了加工设备及工艺参数等因素外,合金带材本身具有优良的深冲性能是至关重要的,合金带材深冲性能的优良,主要表现在它必须具有优良的延展性和带材的力学性能各向异性小。
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 complex-shaped structural parts have replaced the bar turning process with strip blanking. Figure 1 shows the structural parts of the blanks. They are characterized by complex shapes and thicknesses Thinner, geometric size and surface quality requirements and so on. In order to meet the application requirements, in addition to processing equipment and process parameters and other factors, the alloy strip itself has excellent deep-drawing properties is crucial, alloy strip deep drawing performance is excellent, mainly in that it must have excellent ductility And the mechanical properties of the strip anisotropy small.