摘要
对曲轴轴颈进行中频感应淬火,使圆角处产生残余压应力和淬硬层,以提高曲轴的疲劳强度和抗磨损能力。因在线测量温度、组织、应力在当前技术条件下是不可能的,需借助计算机模拟技术来了解、改进淬火工艺,满足提高曲轴疲劳强度和耐磨性的要求。本文利用ANSYS软件对连杆轴颈感应淬火过程进行模拟,计算了淬硬层厚度和淬火后的残余应力分布,并利用ANSYS疲劳分析模块对淬火前和淬火后曲轴进行疲劳分析,结果可信。
Carries on the medium-frequency inductively quenching to the crankshaft journal, the main function of quenching is to make corner produce residual stress and strengthen layer which can enhance crankshaft＇s fatigue strength and abrasion-proof. For improving the fatigue strength and abrasion-proof of crankshafts, we must study and amend quenching technique using computer simulation, because it is impossible to measure temperature field, structure and stress online by current technique. This paper uses ANSYS to simulate the quenching process and to compute strengthen layer and residual stress. Then pre-quench crankshaft and post-quench crankshaft are fatigue analyzed with ANSYS fatigue module, the results credible.
出处
《现代制造技术与装备》
2008年第4期78-79,86,共3页
Modern Manufacturing Technology and Equipment
关键词
曲轴
感应淬火
模拟
残余应力
疲劳
crankshaft, medium-frequency inductively quench, simulation, residual stress ,fatigue
