渗氮表面磨削工艺优化研究  

Research on Optimization of Nitriding Surface Grinding Process

作　　者：孙维民 SUN Weimin(Sichuan FST Machining Manufacturing Co.,Ltd.,Chengdu 610066)

机构地区：[1]四川法斯特机械制造有限责任公司,成都610066

出　　处：《现代制造技术与装备》2025年第3期118-120,共3页Modern Manufacturing Technology and Equipment

摘　　要：40CrNiMoA材料经过渗氮处理后,由于渗氮表面脆性大,在后续加工过程中容易产生磨削裂纹,进而出现产品质量问题。基于此,以材质为40CrNiMoA的某轴类零件为例,分析磨削裂纹产生的原因,并提出改进加工设备、优化冷却方式、控制加工参数以及调整工艺路线等优化和改进措施。经过批生产验证,优化后的磨削工艺方案能够使产品合格率提升至95%。After nitriding treatment,40CrNiMoA material is prone to produce grinding cracks in the subsequent processing due to the brittiness of the nitriding surface,and then the product quality problem occurs.Based on this,taking a shaft part of 40CrNiMoA as an example,the causes of grinding cracks were analyzed,and the optimization and improvement measures such as improving the processing equipment,optimizing the cooling mode,controlling the processing parameters and adjusting the process route were proposed.After batch production verification,the optimized grinding process can increase the product qualification rate to 95%.

关 键 词：40CrNiMoA 渗氮表面 磨削裂纹 磨削工艺 

分 类 号：TG580.6[金属学及工艺—金属切削加工及机床]