...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Manufacturing Processes >Computational investigation of welding heat transfer characteristics and parameters effectiveness in mild steel linear friction welding
【24h】

Computational investigation of welding heat transfer characteristics and parameters effectiveness in mild steel linear friction welding

机译：低碳钢线性摩擦焊焊接传热特性及参数有效性的计算研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Numerical simulation of heat transfer represented an efficient tool for the prediction of the effectiveness of the selected welding parameters in industrial application of the linear friction welding (LFW). A fully coupled model was established to study the effect of welding parameters on the welding heat transfer characteristics in LFW of mild steel. The interfacial temperature increased quickly owing to friction heat generation, and stress distribution showed dynamic variations owing to the periodic motion. The energy ratio of friction work and plastic deformation work increased with increasing friction pressure, oscillation frequency, and amplitude, thus indicating the significance of heat generation by plastic deformation. The heat transfer characteristics were found to be highly dependent on the welding parameters. A practical mathematical equation correlating the average friction power with welding parameters was proposed and used to select the suitable welding parameters for a sound LFW joint. The simulated results indicated excellent agreement with the experimental measurements. Finally, microstructures of the experimental welded joint were investigated by consideration of the thermal process. It was hoped that the greater understanding of heat transfer behavior could improve the efficient of process optimization when joining steel as well as other metal materials.
机译：传热的数值模拟是预测线性摩擦焊接（LFW）工业应用中所选焊接参数有效性的有效工具。建立了全耦合模型，研究了焊接参数对低碳钢LFW焊接传热特性的影响。由于摩擦热的产生，界面温度迅速升高，并且由于周期性运动，应力分布显示出动态变化。摩擦功和塑性变形功的能量比随着摩擦压力，振荡频率和振幅的增加而增加，从而表明了塑性变形产生热量的重要性。发现热传递特性高度依赖于焊接参数。提出了一个实用的数学公式，将平均摩擦功率与焊接参数相关联，并用于为合理的LFW接头选择合适的焊接参数。模拟结果表明与实验测量结果非常吻合。最后，通过考虑热过程研究了实验焊接接头的微观结构。希望对热传递行为的更多了解可以提高在连接钢以及其他金属材料时的工艺优化效率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号