成形磨削温度的理论与试验分析

doi:10.3901/JME.2018.03.203

机械工程学报 ›› 2018, Vol. 54 ›› Issue (3): 203-215.doi: 10.3901/JME.2018.03.203

成形磨削温度的理论与试验分析

郭国强¹, 安庆龙², 林立芳¹, 杨长祺¹, 陈明²

1. 上海航天精密机械研究所上海 201600;
2. 上海交通大学机械与动力工程学院上海 200240

收稿日期:2016-11-30 修回日期:2017-05-10 出版日期:2018-02-05 发布日期:2018-02-05
通讯作者: 郭国强(通信作者),男,1982年出生,博士。主要研究方向为高速切削理论与技术,精密加工理论与技术。E-mail:guoguo_0@163.com
作者简介:陈明,男,1966年出生,博士,教授,博士研究生导师。主要研究方向为难加工材料加工理论与技术,制造过程控制与制造系统工艺数据库。E-mail:mchen@sjtu.edu.cn
基金资助:
国家自然科学基金资助项目（51405290）。

Analytical and Experimental Investigation of Temperature in Form Grinding

GUO Guoqiang¹, AN Qinglong², LIN Lifang¹, YANG Changqi¹, CHEN Ming²

1. Shanghai Spaceflight Precision Machinery Institute, Shanghai 201600;
2. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240

Received:2016-11-30 Revised:2017-05-10 Online:2018-02-05 Published:2018-02-05

摘要/Abstract

摘要： 通过磨削弧区内直角三角形热源分布以及一维导热过程的简化，并基于平面连续磨削温度的理论分析，构建了成形磨削温度的数值计算模型。该模型首先能够对型面交界处平面与斜平面磨削热源的耦合作用进行描述，同时也能对型面交界处最易产生磨削烧伤这一现象进行定量化分析。依据平面磨削过程中砂轮与工件实际接触弧长和热量分配比例的理论计算模型，分别建立了成形磨削过程中平面与斜平面两个组成部分的热量分配比例计算方法。最后，设计了成形磨削温度的试验测试方法，通过成形磨削加工试验对数值计算模型的有效性进行了验证。试验结果表明，由于成形磨削过程中同时存在平面和斜平面两个磨削热源，二者之间存在耦合作用，从而导致平面与斜平面交界处的温升急剧增加，极易引起磨削烧伤。

关键词: 成形磨削, 磨削烧伤, 磨削温度, 热量分配, 热源耦合

Abstract: Based on the thermal analysis of surface grinding, according to triangular heat flux and one-dimensional linear heat conduction, a numerical model for temperature calculation in form grinding is set up. Grinding burn was most likely to happen at the place of the junction of two adjacent planes in form grinding, the coupling effect of heat source at the junction is investigated and the reason could be quantitative analyzed by this model. According to the mathematical model of energy partition ratio and real contact arc length in surface grinding, the computational method of energy partition ratio in form grinding which includes plane and inclined plane grinding is determined. Experimental measuring method of the temperature in form grinding is designed; the numerical model for temperature calculation in form grinding had been verified by tests result. The result indicated that with the coupling effect of heat source in form grinding, the junction had the highest temperature rise which would induce grinding burn.

Key words: coupling of heat source, energy partition, form grinding, grinding burn, grinding temperature

中图分类号:

TG580

郭国强, 安庆龙, 林立芳, 杨长祺, 陈明. 成形磨削温度的理论与试验分析[J]. 机械工程学报, 2018, 54(3): 203-215.

GUO Guoqiang, AN Qinglong, LIN Lifang, YANG Changqi, CHEN Ming. Analytical and Experimental Investigation of Temperature in Form Grinding[J]. Journal of Mechanical Engineering, 2018, 54(3): 203-215.

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成形磨削温度的理论与试验分析

Analytical and Experimental Investigation of Temperature in Form Grinding

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