一.引言钽具有一系列独特性能。钽带可以进行冲裁、弯曲、胀形、翻边及浅拉深,具有很好的成形性能。但钽带的深拉深,特别是钽箔的深拉深,由于粘着撕裂、掉边,拉深非常困难。即使每道工序变形程度很小,且采用手动脉动拉深,良品率也不足10％。对此,我们经过反复分析、研究和试验,较好的解决了这个问题。二.对拉深粘着机理的认识在拉深过程中,凹模和制件相对运动,如果润滑不良,其相对运动的摩擦一般属于混合摩擦。模 I. Introduction Tantalum has a series of unique properties. Tantalum can be blanking, bending, bulging, flanging and shallow drawing, with good formability. However, the deep drawing of tantalum ribbons, especially the deep drawing of tantalum foil, is very difficult due to sticking and tearing, falling off and drawing. Even if the deformation of each process is very small, and the use of manual pulsation, the yield is less than 10%. In this regard, after repeated analysis, research and experiment, we have solved this problem well. Second, the deepening of the adhesion mechanism of understanding In the drawing process, the relative movement of the die and the workpiece, if poor lubrication, the friction of the relative movement are generally mixed friction. mold