表面技术Issue(6)：120-126,132,8.DOI:10.16490/j.cnki.issn.1001-3660.2015.06.023
机加工表面残余应力及其疲劳寿命评价的研究进展
Research Progress on Evaluation of Surface Residual Stress and Fatigue Life of Machined Products
摘要
Abstract
ABSTRACT:With the rapid development of aerospace engineering, nuclear power industry, marine engineering equipment and motor industry, especially the implementation of the national aerospace and marine strategy, the requirements are stricter on the re-liability and service life of components in the complex service environment such as high corrosion and high alternating load. As an important evaluation criterion of component performance, surface integrity in machining has drawn more and more attention. Surface residual stress, as a major parameter of surface integrity, is closely related to fatigue life and functional performance of manufac-tured components. Therefore, it is necessary to investigate the formation mechanism of surface residual stress in machining. This paper introduced the definition of residual stress and its effects on material performance, compared the advantages and disadvanta-ges of the neutron diffraction method and the X-ray diffraction method for residual stress determination, summarized the formation mechanism of surface residual stress in machining by experimental, predictive and FEM methods, analyzed effects of cutting param-eters, tool geometry and material property on surface residual stress. The interrelationship between residual stress and fatigue life was summarized. Finally, the problems were explored in the formation mechanism of surface residual stress in machining and fa-tigue life evaluation.关键词
可靠性/机械加工/表面完整性/残余应力/疲劳寿命/生成机理Key words
reliability/machining/surface integrity/residual stress/fatigue life/detection/formation mechanism分类
矿业与冶金引用本文复制引用
何少杰,杨文玉,郭步鹏,周瑞虎..机加工表面残余应力及其疲劳寿命评价的研究进展[J].表面技术,2015,(6):120-126,132,8.基金项目
国家科技支撑计划(2014BAB13B01) Fund：Supported by National Science and Technology Support Program(2014BAB13B01) （2014BAB13B01）
