等离子技术用于金属切削加工,是世界上七十年代初才出现的一项新技术,只有几个国家掌握,但偏重于实验室的理论研究。最近一、二年英国才用于生产,主要是外圆车削的粗加工,切削过十六种材料,提高工效5～20倍,加工高锰钢(ZGMn14)提高工效10倍至16倍。我们的实践时间虽然很短,对七、八种材料进行了试切,主要工作集中在提高外圆粗车的加工效率方面,但是已经显示出这项新技 Plasma technology for metal cutting is a new technology that emerged in the world in the early seventies. Only a few countries have mastered it, but the emphasis is on laboratory theoretical research. In the last one or two years, Britain was used for production, mainly for roughing of cylindrical turning, cutting 16 kinds of materials, improving work efficiency by 5 to 20 times and processing high manganese steel (ZGMn14) to improve work efficiency by 10 times to 16 times. Our practice time is very short, seven or eight kinds of materials were cut, the main focus of work to improve rough machining efficiency of the rough, but has shown that this new technology