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首页> 外文期刊>International Journal of Heat and Mass Transfer >Validation of an analytical model for grinding temperatures in surface grinding by cup wheel with numerical and experimental results
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Validation of an analytical model for grinding temperatures in surface grinding by cup wheel with numerical and experimental results

机译：数值和实验结果验证了杯形砂轮表面磨削温度分析模型的验证

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摘要

The thermal models of the grinding process are an important tool for predicting temperature to minimize workpiece thermal damage while improving process efficiency. According to different shapes of contact area, the analytical thermal model of arc moving heat source for rectangular workpiece is deduced and an established numerical model is chosen for comparison in this paper. An experiment with three thermocouples is carried out to validate the max grinding temperature and the character of temperature distribution predicted by the analytical and numerical model in this article. Various experiments were conducted to provide a broad range of process parameters. The comparison results show that: the values of max grinding temperature predicted by analytical and numerical model have well agreement with the measurement results in experiments and the relative errors are within 20%; the max grinding temperature values measured at the location of cut-in and cut-out are larger than the value in the middle of workpiece. The max grinding temperature and character of temperature distribution predicted by analytical and numerical model is validated by the experimental results.
机译：磨削过程的热模型是预测温度以最小化工件热损伤同时提高过程效率的重要工具。根据接触区域的不同形状，推导了矩形工件电弧移动热源的解析热模型，并选择了建立的数值模型进行比较。进行了三个热电偶的实验，以验证本文的解析和数值模型预测的最高磨削温度和温度分布特征。进行了各种实验以提供广泛的工艺参数。比较结果表明：分析和数值模型预测的最高磨削温度与实验测量结果吻合良好，相对误差在20％以内。在切入和切出位置测量的最大磨削温度值大于工件中间的温度。实验结果验证了解析和数值模型预测的最高磨削温度和温度分布特征。

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  • 来源
  • 作者

    Xiaofeng Zhang; Bin Lin; Hui Xi;

  • 作者单位

    Key Laboratory of Advanced Ceramics and Machining Technology, Tianjin University, Ministry of Education, China;

    Key Laboratory of Advanced Ceramics and Machining Technology, Tianjin University, Ministry of Education, China;

    Key Laboratory of Advanced Ceramics and Machining Technology, Tianjin University, Ministry of Education, China No. 92, Weijin Road, Nankai Dist., Tianjin, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Surface grinding; Analytical thermal model; Finite element method; Thermocouple;

    机译：表面研磨;分析热模型;有限元法;热电偶;

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