激光和电子束表面淬火,是利用高能量密度的粒子束对金属表面进行超快速加热和自冷淬火,它具有一定的特点。所以许多国家都积极地开展这方面的研究工作,少数国家已试用于生产实践,并收到了成效。目前国内有些研究单位也正开展这方面的研究工作,并已取得一些进展。我们根据生产中存在的质量问题,对45钢和42CrMo钢进行了激光和电子束表面淬火工艺试验研究,现将我们的试验结果分述如 Laser and electron beam surface hardening, is the use of high energy density particle beam on the metal surface ultra-rapid heating and self-quenching, it has some characteristics. Therefore, many countries are actively carrying out research work in this field. A few countries have tried their best in production practice and have achieved results. At present, some research institutes in China are also carrying out research in this area and have made some progress. According to the quality problems existing in our production, we carried out the laser and electron beam surface hardening test on 45 steel and 42CrMo steel. Now,