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金属表面改性的预应力磨削机理研究
引用本文:王珉,Lau W S.金属表面改性的预应力磨削机理研究[J].机械工程学报,1992,28(3):104-109,.
作者姓名:王珉  Lau W S
作者单位:南京航空学院;香港理工学院
摘    要:本文提出了利用预张应力磨削来提高磨削加工的表面质量问题。建立了预应力磨削的理论分析模型,较透彻地阐述了预应力磨削对表面残余应力的影响。还就各种磨削条件和装恶化条件对磨削加工中表面残余应力的存在与分布,以及对工件几何精度的影响进行了试验研究。并探讨了这种对金属表面改性有利的新磨削工艺的可行性与实用性。

关 键 词:表面质量  磨削  预应力  

IMPROVEMENT OF SURFACE INTEGRITY WITH PRE-STRESSED GRINDING
Wang Min,Lau W S.IMPROVEMENT OF SURFACE INTEGRITY WITH PRE-STRESSED GRINDING[J].Chinese Journal of Mechanical Engineering,1992,28(3):104-109,.
Authors:Wang Min  Lau W S
Affiliation:Nanjing Aeronautical Institute Hong Kong Ploytechnic
Abstract:The biggest problem in grinding is the generation of residual tensile stresses after the grinding operation which reduces the fatigue resistance of the component. By applying pre-tensile stress to the workplace during grinding, it is found that the residual stressed produced after grinding re compressive rather than tensile, Experiments with different grinding conditions and wheel conditions all confirm the fact that pre-tensile stressed workplaces produce residual compressive stresses irrespective of grinding, conditions. For a workpiece subject to a pre-compressive stress, however, the residual stress produced is tensile in nature, of which the magnitude is bigger than that obtained in un-stressed workpieces. The pre-compressive stressing of workpieces should therefore be avoided in grinding operations.
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