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本文介绍了通过电极冷挤压试验,对电极材料的状态、压缩率、硬度、金相组织、导电率、热处理规范等对使用寿命的影响,以及对模具设计、寿命和冷挤压工艺参数,取得了较为满意的经济效益。电阻点焊是汽车制造工业中零部件装配焊接的重要工艺方法,而电极又是点焊机的重要附件,是点焊时必不可少的辅具。电极的好坏直接影响点焊的质量。国外已普遍采用电极冷挤压成型技术,而国内绝大部分仍采用车削加工成型,浪费了大量的铜合金和加工工时。因此,如何充分利用原材料,提高电极的使用寿命,降低成本,是点焊电极
In this paper, the influence of electrode material’s state, compressibility, hardness, microstructure, electrical conductivity and heat treatment specifications on the service life of the electrode materials, as well as the process parameters of mold design, life span and cold extrusion, Made more satisfied with the economic benefits. Resistance spot welding is an important process for the assembly and welding of parts and components in the automobile manufacturing industry. The electrode is an important accessory for spot welding and is an indispensable accessory for spot welding. The quality of the electrode directly affects the quality of the electrode. Foreign electrode extrusion cold forming technology has been widely used, while the vast majority of domestic use of turning machining molding, wasting a lot of copper alloy and working hours. Therefore, how to make full use of raw materials, improve the service life of the electrode, reduce costs, is the spot welding electrode