热源形貌对超精密磨削热模型影响的研究  

Research on the influence of heat source shape on the ultra-precision grinding thermal model

作　　者：阮宏慧[1] 张大卫[1] 

机构地区：[1]天津大学机械工程学院,天津300072

出　　处：《机械设计》2009年第2期32-35,共4页Journal of Machine Design

基　　金：国家自然科学基金资助项目(50705064)

摘　　要：在新建立的热模型基础上研究了超精密磨削过程中磨削热对工件的影响,并得到静态下的热源分布。利用多个热源模型模拟不同的超精密磨削条件,分析了热源参数对温度分布的影响,这一新型的热源模型及分析结果很重要,保证了超精密磨削工件的表面质量。On the basis of the newly established thermal model the influence of grinding heat in the process of super-precision grinding on the workpieee has been studied and the distributions of heat source under static state were obtained. Utilizing multiple heat source models to simulate different conditions of ultra-precision grindings and the influence of heat source parameters on the temperature distributions was analyzed. This new typed heat source model and the result of analysis were very important which ensured the surface quality of the ultra-precision grinded workpiece.

关 键 词：超精密磨削 热模型 热源形状 温度分布 

分 类 号：TG74[金属学及工艺—刀具与模具]