铸造技术2017，Vol.38Issue(8)：1854-1858,5.DOI:10.16410/j.issn1000-8365.2017.08.021
船用柴油机凸轮轴中频淬火工艺数值模拟分析
Research on Medium Frequency Induction Quenching for Camshaft in Marine Diesel Engine
景旭文 1范金龙 1周宏根 1顾向阳 2孔晓凤2
作者信息
- 1. 江苏科技大学机械工程学院,江苏镇江212003
- 2. 河南柴油机重工有限责任公司,河南洛阳471000
- 折叠
摘要
Abstract
Aimed at the problems of uneven hardening layer and too great local residual stress in cam position(l)of camshaft after induction hardening process,the heat treatment modules of SYSWELD software was used to establish the finite element model of induction quenching process based on heat transfer coefficient and the austenitic dynamics theory,and simulation analysis was carried out on the medium frequency induction hardening process of GCr15 camshaft,the thickness of hardening layer,hardness and residual stress field distribution of camshaft were obtained.The results show that the thinnest hardening layer only is 1.34 mm on the transition contour and the surface hardness is more than 700 HV,the residual compressive stress of the peach tip surface and transition contour surface reach-50 MPa and-350 MPa,respectively,under the heating power of 110～120 kW,the frequency of 5 600 Hz and the heating time of 6 s.关键词
凸轮轴/热处理/感应淬火/残余应力Key words
camshaft/heat treatment/induction quench/residual stress分类
金属材料引用本文复制引用
景旭文,范金龙,周宏根,顾向阳,孔晓凤..船用柴油机凸轮轴中频淬火工艺数值模拟分析[J].铸造技术,2017,38(8):1854-1858,5.
