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在我单位生产的产品中,其中有一零件外形如图1所示。在保证零件功能的前提下,为节约贵重金属材料。把该零件改为由件1和件2组合而成,件1材料为1Cr18Ni9Ti(奥氏体不锈钢),件2材料为TA2(纯钛)。由于件1与件2联接后,不能破坏工件的外形尺寸(即宽度尺寸80和厚度尺寸9),因此零件表面不能采用任何加固式的联接方法;由于件1与件2的材料不同,熔点不同,因此也不能采用一般的焊接方式联接。据有关资料介绍,用真空电子束焊接,在1Cr18Ni9Ti与TA2之间加一种过渡的金属片(该片为复合材料),可以实现二者之间的可靠联接。但采用这种焊接方式,将使得制造成本大幅度的提高。因此也不理想。
Among the products I produce, one of the parts is shown in Figure 1. In the premise of ensuring the function of parts, in order to save precious metals. The part was changed to a combination of pieces 1 and 2, piece 1 made of 1Cr18Ni9Ti (austenitic stainless steel), piece 2 made of TA2 (pure titanium). Since the connection between component 1 and component 2 can not damage the overall dimensions of the component (ie width 80 and thickness 9), the surface of the component must not be joined by any type of reinforcement. Due to the different materials of component 1 and 2, the melting point is different , So can not use the general welding connection. According to the information, using vacuum electron beam welding, 1Cr18Ni9Ti and TA2 plus a transition between the metal sheet (the film is a composite material), can achieve a reliable connection between the two. However, the use of this welding method, will make a substantial increase in manufacturing costs. So not ideal.