机械科学与技术2017，Vol.36Issue(7)：1063-1067,5.DOI:10.13433/j.cnki.1003-8728.2017.0713
预应力砂带磨削钛合金表面完整性的试验研究
Experimental Study on Surface Integrity of Titanium Alloy Machined by Prestressed Abrasive Belt Grinding
摘要
Abstract
In order to improve the fatigue resistance and corrosion resistance of titanium alloy,the tests of abrasive belt grinding of titanium alloy are conducted on different prestressed conditions(0,100 MPa and 200 MPa)based on the principle of prestressed abrasive belt grinding.On different prestressed conditions,the influence rules of the residual stress,surface roughness,hardness and surface topography of the workpiece are obtained by testing and analyzing the surface integrity of the workpiece.Based on the model of abrasive belt grain,the mechanisms that prestressed abrasive belt grinding affects the residual stress and surface topography are revealed.The research shows that,within the elastic deformation limit of titanium alloy,the condition of compressive residual stress on surface of workpiece can be actively strengthened by applying prestress.The larger the magnitude of prestress is,the larger the compressive residual stress.The influence of prestressed abrasive belt grinding on the surface hardness is insignificant,and the surface hardness does not change with prestress.The workpiece machined by prestressed abrasive belt grinding can obtain good surface topography but there is slight increase in roughness.关键词
预应力/砂带磨削/钛合金/表面完整性Key words
prestress/abrasive belt grinding/titanium alloy/surface integrity分类
矿业与冶金引用本文复制引用
费亚,黄云,邹莱,陈亚雄..预应力砂带磨削钛合金表面完整性的试验研究[J].机械科学与技术,2017,36(7):1063-1067,5.基金项目
国家自然科学基金面上项目(51275545)和重庆大学机械传动国家重点实验室主任基金项目(SKLMT-ZZKT-2015Z15)资助 （51275545）
