电火花沉积WC-12Co涂层单脉冲温度场数值模拟
发布时间:2018-07-26 07:43
【摘要】:为了确定电火花沉积WC-12Co涂层的温度场,通过选用合适的热源和热边界条件,建立电火花沉积WC-12Co涂层热传导模型.利用ANSYS有限元软件进行数值模拟,得到了电极材料及工件材料的温度等值面、温度分布曲线以及温度随时间变化曲线.通过设置温度场等值线确定了材料熔化和气化区域大小.同时文中研究了工艺参数对熔化和气化区域的影响,并预测最佳工艺参数的范围.通过电火花沉积试验验证了模拟预测结果的正确性,得到了可以获得良好沉积形貌涂层的最佳工艺参数.
[Abstract]:In order to determine the temperature field of WC-12Co coating deposited by EDM, the heat conduction model of EDM deposited WC-12Co coating was established by selecting appropriate heat source and thermal boundary conditions. The temperature isosurface, temperature distribution curve and temperature variation curve of electrode material and workpiece material are obtained by using ANSYS finite element software. The size of material melting and gasification region was determined by setting the temperature field isoline. At the same time, the influence of process parameters on melting and gasification region is studied, and the range of optimum process parameters is predicted. The correctness of the simulation and prediction results were verified by the EDM test, and the optimum process parameters of the coating with good deposition morphology were obtained.
【作者单位】: 哈尔滨工业大学先进焊接与连接国家重点实验室;
【基金】:国家自然科学基金资助项目(51275135,51305102,51474081)
【分类号】:TG174.4
本文编号:2145330
[Abstract]:In order to determine the temperature field of WC-12Co coating deposited by EDM, the heat conduction model of EDM deposited WC-12Co coating was established by selecting appropriate heat source and thermal boundary conditions. The temperature isosurface, temperature distribution curve and temperature variation curve of electrode material and workpiece material are obtained by using ANSYS finite element software. The size of material melting and gasification region was determined by setting the temperature field isoline. At the same time, the influence of process parameters on melting and gasification region is studied, and the range of optimum process parameters is predicted. The correctness of the simulation and prediction results were verified by the EDM test, and the optimum process parameters of the coating with good deposition morphology were obtained.
【作者单位】: 哈尔滨工业大学先进焊接与连接国家重点实验室;
【基金】:国家自然科学基金资助项目(51275135,51305102,51474081)
【分类号】:TG174.4
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