我厂锥柄钻头、立铣刀等产品的坯件均由高速钢与45钢对焊而成。钢材下料,过去在开式冲模上迸行,采用热冲方法,不仅加热时间长、耗电量多、芳动强度大,而且冲件质量差,塌头尺寸大,影响坯件对焊质量和半成品加工,造成材料、工时的很大浪费。为了解决以上问题,我们研制了径向夹紧的差动冲模,经多年使用,证明它具有很多优越性,能在常温条件下对 I plant taper shank drill bits, end mills and other products by the high-speed steel and 45 steel butt welded together. Steel cutting, the past in the open die on the line, the use of hot red method, not only heating a long time, more power consumption, Fangfang strength, and the poor quality of the pieces, the collapse of large size, affecting the quality of the welding of blank And semi-finished products processing, resulting in a great waste of materials, working hours. In order to solve the above problems, we developed a radial clamping differential die, after years of use, proved it has many advantages, at room temperature can be