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硬质合金冲模逐步得到广泛使用,解决了许多需要数量很大的产品制造问题,产品质量也有很大提高。目前,在硬质合金冲模制造装配过程中,由于硬质合金硬席大,不能进行机械加工,因此在装配紧固时工艺比较复杂,质量不稳定,同时,周期也较长。我厂从65年8月以来着手研究硬质合金用电火花机床加工螺孔的工艺,想用此办法克服硬质合金沖模在制造装配中的薄弱环节。电火花加工螺孔.首先,我们在普通铁板上,钻一小孔,用圆锥攻一小所须要加工的螺孔,用铜螺杆旋上,作负极(电极);在硬质合金上预先穿一小孔作正极(被加工物),旋动负极,进行加工
Carbide die has been gradually used extensively to solve many problems that require a large number of products, and the quality of the product has also been greatly improved. At present, during the manufacturing and assembling process of hard alloy die, since the hard alloy hard seat is large and can not be machined, the process is complicated when assembling and fastening, the quality is unstable, and the cycle is also long. Our factory has been studying the process of tapping screw holes for hard alloy electrospindle machine tools since August of 65. We want to use this method to overcome the weak links in the manufacture and assembly of hard alloy die. EDM machining screw holes. First, we drilled a small hole on an ordinary iron plate, tapped a small screw hole to be machined with a cone, and screwed it with a copper screw to make a negative electrode (electrode); on the hard alloy Wear a small hole for the positive electrode (processed object), rotate the negative electrode, and process