基于磨削特征参数的18CrNi4A钢磨削热数值计算模型  

Grinding Heat Numerical Calculation Model of 18CrNi4A Steel Based on Grinding Characteristic Parameters

作　　者：刘旸 周峤 谭日明 Liu Yang;Zhou Qiao;Tan Riming

机构地区：[1]北京航天发射技术研究所,北京100076

出　　处：《大型铸锻件》2023年第2期38-41,56,共5页Heavy Casting and Forging

摘　　要：磨削工序是零件成型的重要环节,磨削过程中的磨削热一直是人们关注的重点,产生的热量过大会导致磨削烧伤等问题,必须控制好磨削参数。基于磨削理论,提出了零件表面磨削接触宽度、磨削接触长度、磨削力等参数的表征方法,建立了一种磨削热的数值计算方法。通过磨削热数值计算模型,得到了磨削过程零件的表面温度。并通过18CrNi4A材料磨削加工试验,验证了磨削热计算模型的可信性,能够对18CrNi4A及其他高强钢材料磨削加工工艺参数的确定提供一定的理论指导。Grinding process is an important part of part forming. Grinding heat in grinding process has always been the focus of attention. Excessive heat generated will lead to grinding burns and other problems. Grinding parameters must be controlled well. In this paper, a numerical calculation method of grinding heat has been established. Based on the grinding theory, the characterization methods of grinding contact width, grinding contact length and grinding force on the surface of parts have been proposed. Through the numerical calculation model of grinding heat, the surface temperature of parts in grinding process has been obtained. The reliability of the grinding heat numerical calculation model has been verified by the grinding test of 18CrNi4A material, which can provide some theoretical guidance for the determination of grinding process parameters of 18CrNi4A and other high strength steel materials.

关 键 词：磨削 温度 数值计算 18CrNi4A 

分 类 号：TH142.1[一般工业技术—材料科学与工程]