12CrNi3A凸轮轴渗碳激光强化复合处理工艺

摘要

he technique for the intensification and recombination treatment of carburization laser of cam shaft 12CrNi3A have been studied in this paper.The tests results show that,with using the carburization technique to increase the carbon density of surface and through the reasonable and effective technology of laser quenching treatment an ideal and uniform harden quench surfaceis obtained.The hardness of surface has been strengthened.The wear resistance and fatigue strength resistance of cam shaft has been enhanced.The problem of abrasive failure of cam shaft has also been resolved. It is a new attempt to develop and apply the technology of laser surface heat treating.%对12CrNi3A凸轮轴渗碳激光强化复合处理进行了研究。研究结果表明，采取表面渗碳工艺增加表层的碳浓度，并通过采用合理有效的激光淬火处理工艺，获得理想的淬硬层分布，提高了表层的硬度，增强了凸轮轴表面的耐磨性和抗疲劳强度，解决了凸轮轴磨损失效问题，是开发和应用激光表面热处理技术的一个新的尝试。