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Optimization of laser welding in pulsed Nd: YAG laser using 304 stainless steel.

机译:使用304不锈钢优化脉冲Nd:YAG脉冲激光焊接。

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摘要

Experimental investigations were carried out using pulsed SLS 200 Nd: YAG laser welding of ANSI 304 stainless steel plate to determine the optimal welding conditions. The weld characteristics like the depth, width and Heat Affected Zone are taken into consideration for the optimum weld. The parameters that are kept constant during the process are pulse duration, frequency, beam diameter, by changing the parameters in the laser weld like the feed rate, power and distance of the weld we can vary the weld characteristics. The welds were analyzed by optical microscope and tensile shear tests. The optimization of weld is also done by testing the weld strength using the MTS machine in which we can test the tensile strength of the weld. The finite element analysis model of the three-dimensional heat source for pulsed laser beam butt welding was analyzed in COMSOL and ANSYS. The results of finite element analysis were used to compare the results of experimental data.
机译:使用ANSI 304不锈钢板的脉冲SLS 200 Nd:YAG激光焊接进行了实验研究,以确定最佳焊接条件。为了获得最佳焊接效果,需要考虑焊接特性,例如深度,宽度和热影响区。在过程中保持不变的参数是脉冲持续时间,频率,光束直径,通过更改激光焊接中的参数(例如进给速度,功率和焊接距离),我们可以改变焊接特性。通过光学显微镜和拉伸剪切试验分析焊缝。焊接的优化还可以通过使用MTS机器测试焊接强度来完成,我们可以在其中测试焊接的拉伸强度。在COMSOL和ANSYS中分析了脉冲激光对接三维热源的有限元分析模型。有限元分析的结果用于比较实验数据的结果。

著录项

  • 作者

    Chithaluru, Aditya.;

  • 作者单位

    Northern Illinois University.;

  • 授予单位 Northern Illinois University.;
  • 学科 Mechanical engineering.;Optics.
  • 学位 M.S.
  • 年度 2015
  • 页码 98 p.
  • 总页数 98
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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