基于线性回归分析法研究激光电弧复合焊工艺参数对焊缝的影响
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  • 英文篇名:Influence of Laser-arc Hybrid Welding Process Parameters on Welding Seams Based on Linear Regression Analysis
  • 作者:王冠东 ; 黄松涛 ; 焦向东
  • 英文作者:Wang GuANDong;Huang Songtao;Jiao Xiangdong;School of Mechanical Engineering, Beijing Institute of Petrochemical Technology;
  • 关键词:激光-MAG复合焊 ; 多元线性回归 ; 数学模型
  • 英文关键词:laser-MAG hybrid welding;;multiple linear regression;;mathematical model
  • 中文刊名:YYJG
  • 英文刊名:Applied Laser
  • 机构:北京石油化工学院机械工程学院;
  • 出版日期:2019-02-15
  • 出版单位:应用激光
  • 年:2019
  • 期:v.39
  • 基金:国家自然科学基金资助项目(项目编号:51675052)
  • 语种:中文;
  • 页:YYJG201901015
  • 页数:4
  • CN:01
  • ISSN:31-1375/T
  • 分类号:102-105
摘要
采用激光-MAG复合焊接10 mm厚的Q345B钢板,利用多元线性回归的方法分析得到了激光功率、MAG电流、离焦量和焊接速度对焊缝熔深及熔宽的影响。利用MATLAB算法优化该模型并得到了最优的焊接工艺参数组合。实验结果表明,当激光功率为3 kW、电流为320 A、离焦量为-2 mm、焊接速度为8.3 mm/s时,焊缝的熔深熔宽比达到最大,验证所求的结果与实际值相差不超过5%,该数学模型可以有效的预测焊接质量。
        Welding 10 mm Q345 B steel plate by using laser-MAG hybrid welding, the effects of laser power, MAG current, defocusing amount and welding speed on weld penetration and width were analyzed by multiple linear regression method. The MATLAB algorithm was used to optimize the model and get the best combination of welding process parameters. The experimental results show that when the laser power is 3 kW, the current is 320 A, the defocusing amount is-2 mm, and the welding speed is 8.3 mm/s, the weld penetration width ratio is maximized, and the verification result is not more than 5% from the actual value, the mathematical model can effectively predict the welding quality.
引文
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