| 引用本文: | 何俊杰,郝佳鑫,王天琪.基于响应曲面法的摆焊工艺参数分析[J].材料科学与工艺,2024,32(6):10-18.DOI:10.11951/j.issn.1005-0299.20230070. |
| HE Junjie,HAO Jiaxin,WANG Tianqi.Analysis of pendulum welding process parameters based on response surface method[J].Materials Science and Technology,2024,32(6):10-18.DOI:10.11951/j.issn.1005-0299.20230070. |
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| 摘要: |
| 针对摆焊工艺中焊接参数众多,且焊缝几何参数与焊接参数之间关系难以确定的问题,本文提出了一种基于响应曲面法的摆焊工艺参数分析方法。研究了冷金属过渡焊接(CMT)摆焊工艺的摆动参数和焊枪摆动轨迹,采用响应曲面法建立了送丝速度、焊接速度、摆动幅度与焊缝高度、焊缝宽度、焊缝熔深的数学模型,并对模型有效性进行了验证。研究表明:焊枪按照摆动长度为3 mm,左右两侧侧壁停留长度为0.5 mm的摆动轨迹摆动时,焊缝不会出现“鱼刺”型咬边,成型较好,有较好的“鱼鳞纹”,符合焊接成型要求；对焊缝高度的主要影响因素依次是送丝速度>焊接速度>摆动幅度,对焊缝宽度的主要影响因素依次是摆动幅度>焊接速度>送丝速度,对焊缝熔深的主要影响因素依次是送丝速度>焊接速度>摆动幅度。本文建立的3个模型均能够在因子域内预测响应。 |
| 关键词: 摆焊 摆动轨迹 响应曲面法 焊缝几何特征 摆焊参数分析 |
| DOI：10.11951/j.issn.1005-0299.20230070 |
| 分类号:TG444 |
| 文献标识码:A |
| 基金项目:国家自然科学基金资助项目(51975410)；天津市教委科研计划项目(2019KJ011). |
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| Analysis of pendulum welding process parameters based on response surface method |
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HE Junjie, HAO Jiaxin, WANG Tianqi
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(Tianjin Key Laboratory of Modern Mechatronics Equipment Technology, Tiangong University, Tianjin 300387, China)
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| Abstract: |
| In response to the challenge of numerous welding parameters in the swing welding process, and the difficulty on determining the relationship between geometric parameters of the weld joint and welding parameters, an analysis method of swing welding process parameters based on the response surface method is proposed. Firstly, the welding torch's swing trajectory and swing parameters in the CMT swing welding process are studied. Then, a mathematical model is establised using the response surface method to corelate the wire feeding speed, welding speed, swing amplitude, weld height, weld width, and weld penetration. Moreover, the effectiveness of the model is validated through experimental verification. The research shows that when the welding torch swings with a swing length of 3 mm and stay on the sidewalls on both sides for a length of 0.5 mm, the weld joint does not show “fishbone” type undercutting and has good formation with a desirable “fish scale” pattern, which meets the welding forming requirements. The main influencing factors of weld height are wire feeding speed>welding speed>swing amplitude. The main influencing factors of weld width are identified as swing amplitude>welding speed>wire feeding speed, and the main influencing factors of weld penetration are determined to be wire feeding speed>welding speed>swing amplitude. All three models can predict responses within the factor domain. |
| Key words: swing welding swing trajectory response surface method weld geometrical features analysis of swing welding parameters |
