五十年代在电火花技术的研究和应用中发现了电火花的另外一个意想不到的作用,这就是在电极间产生了金属转移熔渗的效果,因而出现在刀具表面上熔渗较硬的金属材料达到强化刀具的试验。但没能推广使用,这是因为对电火花强化作用的机理以及设备缺乏深入的试验研究,至使这门很有应用价值的新技术被人门长期忽视了。随着科学技术的不断发展,新材料 In the fifties, another unexpected effect of electric spark was found in the research and application of electric spark technology, which is that metal infiltration infiltration effect occurred between the electrodes, so the metal infiltrated on the surface of the tool appeared hard Material to enhance the test tool. But failed to promote the use of this because of the mechanism of EDM strengthening and the lack of in-depth experimental study of equipment, to make this very valuable new technology has long been neglected. With the continuous development of science and technology, new materials