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缓进深磨作为一项新工艺目前仍处在机理研究落后于生产应用,其潜力尚不得充分发挥的阶段。以与制件烧伤直接相关的缓磨温度的研究为例,国外一直存在着多种相矛盾的观点,且认为缓磨烧伤系瞬间发生因而难于预报和控制。本文在解决测试方法完善实验技术基础上,对缓磨时接触弧区的温度分布及其变化特征作了充分研究,所提供的烧伤前后弧区制件表面温度的时空分布图,在阐明缓磨时的温度特征与烧伤机理上具有重要的理论价值。另外,实验得出的缓磨烧伤是具有足够长时间的典型缓变过程的结论,对在实际生产中预报和监控烧伤亦有指导意义。
Slow grinding into deep grinding as a new technology is still in the mechanism of research behind the production and application, its potential is still not fully play stage. Taking the research on the temperature of buffing, which is directly related to the burn of workpiece, there are many conflicting views all over the world, and it is considered that the burn of the buffing occurs instantly and thus it is difficult to forecast and control. In this paper, based on the improvement of testing techniques, the temperature distribution of contact arc zone and its variation characteristics are studied thoroughly. The spatio-temporal distribution of the surface temperature of the arc zone before and after burns is provided. When the temperature characteristics and burn mechanism has important theoretical value. In addition, the burn-in from the experiment is a conclusion of a typical gradual change process with a long enough time, which is also instructive in forecasting and monitoring the burn in the actual production.