一、无屑加工电热镦粗是一种成型方法,由于其在成型技术中的优点,用处越来越大。加工过程中的夹紧钳的材料,其电导率必须比钢电导率大,因此往往从钨/铜或钨/银复合材料来制备夹紧钳。砧面的材料不是选择耐高温的钼合金TZM(含0.5%钛、0.07%锆、约0.5%碳),就是用含钨量高的重金属。用该方法生产的典型产品有发动机的阀门,汽 First, no chip processing Electric upsetting is a molding method, due to its advantages in the molding technology, the use of more and more. In the process of machining, the material of the clamping jaws must have a higher conductivity than the electrical conductivity of the steel, so clamping jaws are often prepared from tungsten / copper or tungsten / silver composites. Anvil material is not the choice of high temperature resistant molybdenum alloy TZM (containing 0.5% titanium, 0.07% zirconium, about 0.5% carbon), is to use high tungsten content of heavy metals. The typical product produced by this method is the engine valve, steam