| 喷丸强化改善点式移动感应淬火42CrMo钢残余应力数值模拟分析 |
| |
| 引用本文： | 孟庆帅,汪舟,甘进,杨莹,伍刚,钟汉烈,熊勋,高恺,甘小燕.喷丸强化改善点式移动感应淬火42CrMo钢残余应力数值模拟分析[J].表面技术,2018,47(9):12-20. |
| |
| 作者姓名： | 孟庆帅 汪舟 甘进 杨莹 伍刚 钟汉烈 熊勋 高恺 甘小燕 |
| |
| 作者单位： | 武汉理工大学汽车工程学院,武汉430070;武汉理工大学现代汽车零部件技术湖北省重点实验室,武汉430070;武汉理工大学交通学院,武汉,430070 |
| |
| 基金项目： | 国家自然科学基金项目（51405356，51772228） |
| |
| 摘 要： | 目的建立喷丸强化模型,模拟点式移动感应淬火零件过渡区残余拉应力改善情况。方法采用X射线衍射法,测量感应淬火零件过渡区残余应力分布情况,获得的残余应力作为初始应力条件被赋予到喷丸强化模型中,并通过X射线残余应力测试验证模型预测残余应力的准确性。最终通过被验证的喷丸强化模型,探究喷丸处理对初始残余应力状态的改善情况,以及不同喷丸参数对残余应力分布的影响。结果经喷丸强化处理过的淬火零件过渡区表层区域残余拉应力全部转变为残余压应力,不同残余应力状态模型喷丸后残余应力分布差异极小,说明初始残余应力状态对喷丸后残余应力分布的影响微乎其微。增加喷丸速度、弹丸直径和喷丸覆盖率可使残余压应力值增大,残余压应力层深增加,但是二者的增加存在饱和现象,即达到一定程度后变化非常小。结论喷丸强化前,过渡区残余拉应力最大值为295 MPa,喷丸处理后,过渡区残余压应力最大可达-973 MPa,喷丸强化工艺对点式移动感应淬火零件过渡区残余应力改善效果明显。
|
| 关 键 词： | 点式移动感应淬火 喷丸强化 残余应力 数值模拟 初始应力赋值 饱和残余应力场 |
| 收稿时间： | 2018/4/18 0:00:00 |
| 修稿时间： | 2018/9/20 0:00:00 |
Numerical Simulation Analysis of Shot Peening for Residual Stress Improvement of Spot Continual Induction Hardened 42CrMo Steel |
| |
| MENG Qing-shuai,WANG Zhou,GAN Jin,YANG Ying,WU Gang,ZHONG Han-lie,XIONG Xun,GAO Kai and GAN Xiao-yan.Numerical Simulation Analysis of Shot Peening for Residual Stress Improvement of Spot Continual Induction Hardened 42CrMo Steel[J].Surface Technology,2018,47(9):12-20. |
| |
| Authors: | MENG Qing-shuai WANG Zhou GAN Jin YANG Ying WU Gang ZHONG Han-lie XIONG Xun GAO Kai and GAN Xiao-yan |
| |
| Affiliation: | a.School of Automotive Engineering, b.Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan 430070, China,a.School of Automotive Engineering, b.Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan 430070, China,c.School of Transportation, Wuhan University of Technology, Wuhan 430070, China,a.School of Automotive Engineering, b.Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan 430070, China,a.School of Automotive Engineering, b.Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan 430070, China,a.School of Automotive Engineering, b.Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan 430070, China,a.School of Automotive Engineering, b.Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan 430070, China,a.School of Automotive Engineering, b.Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan 430070, China and a.School of Automotive Engineering, b.Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan 430070, China |
| |
| Abstract: | |
| |
| Keywords: | spot continual induction hardening shot peening residual stress numerical simulation initial stress assignment saturated residual stress field |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《表面技术》浏览原始摘要信息 |
|
点击此处可从《表面技术》下载全文 |
|
