钢曲轴中频感应淬火数值仿真及加热方式影响研究  

Research on Simulation of Steel Crankshaft Quenching and Influence of Heating Mode

作　　者：何子永 He Zi-yong(Department of traffic and automobile,Dongguan science and technology school,Guangdong Dongguan 523000)

机构地区：[1]东莞理工学校汽车交通系,广东东莞523000

出　　处：《内燃机与配件》2023年第22期64-66,共3页Internal Combustion Engine & Parts

摘　　要：针对钢质曲轴在实际工程当中的淬火表面处理工艺,采用有限元法对其加工过程中的多物理场耦合现象进行仿真,获得曲轴在淬火加热过程中的温度场分布,空气中冷却过程的温度场,以及内部最终的残余应力场,并在此基础上分析不同的加热模式的影响。研究结果表明,不同的加热顺序对留在曲轴内的残余应力有较为明显的影响,采用先整体-后局部的加热方式对曲轴进行感应淬火强化时,曲轴在加热过程中的最高温度值更低,造成曲轴损伤的可能性更低,同时能够获得更好的强化效果,更适合在实际工程当中采用。Aiming at the quenching surface treatment process of steel crankshaft in actual engineering,the finite element method is used to analyze the multi-physics coupling phenomenon in the machining process,in this way the temperature field distribution during the quenching heating process and the cooling process in the air are determined,and finally the residual stress field is established.In addition,the influence of different heating processes is analyzed.The research results show that different heating sequences have obvious effect on the residual stress left in the crankshaft,the first whole and second part heating process can provide lower highest temperature and less danger probability for the damage during the process,as well as better strengthening effect,which makes this more suitable for application.

关 键 词：曲轴 淬火工艺 有限元法 加热顺序 

分 类 号：U462.3[机械工程—车辆工程]