| 基于有限元的激光定点钎焊温度场研究 |
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| 引用本文： | 杨志波,徐九华,傅玉灿,徐鸿钧.基于有限元的激光定点钎焊温度场研究[J].机械科学与技术(西安),2008,27(5):688-691. |
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| 作者姓名： | 杨志波 徐九华 傅玉灿 徐鸿钧 |
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| 作者单位： | [1]南京航空航天大学江苏省精密与微细制造技术重点实验室,南京210016 [2]河南理工大学,焦作454000 |
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| 摘 要： | 利用ANSYS软件对激光定点钎焊过程温度场进行了有限元模拟,在分析过程中采用三维单元,并考虑了材料热物性的非线性特征,建立了有限元模型,得出了钎焊过程中,不同工艺参数下试样表面的温度场分布图,并进行了温度测量和实际钎焊实验。结果表明:有限元分析温度曲线与实测温度曲线比较吻合,钎焊后金刚石与基体实现高强度连接。
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| 关 键 词： | 激光钎焊 温度场 有限元法 |
| 文章编号： | 1003-8728(2008)05-688-04 |
| 修稿时间： | 2007年1月15日 |
Simulation of the Temperature Field in Laser Fixed Spot Brazing Using FEM |
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| Yang Zhibo,Xu Jiuhua,Fu Yucan,Xu Hongjun.Simulation of the Temperature Field in Laser Fixed Spot Brazing Using FEM[J].Mechanical Science and Technology,2008,27(5):688-691. |
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| Authors: | Yang Zhibo Xu Jiuhua Fu Yucan Xu Hongjun |
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| Abstract: | The purpose of this paper is to simulate the temperature field of laser brazing by FEM.In the analysis the 3-D solid elements are used,and the nonlinear factors of temperature-dependent material properties are taken into consideration.The fields of temperature distribution under different brazing technological parameters during the laser brazing process are obtained.Finally,the simulation results are verified by the brazing-temperature measurement and the experimental data.All the results show that the simulation results agree well with the experimental results,and the hard joint between diamond and steel substrate is realized.This study is useful for selecting reasonable processing parameters in laser brazing diamond grits. |
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| Keywords: | laser brazing temperature field FEM(finite-element method) |
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