陈昶,朱佳佩,柳泉潇潇,等.磁脉冲点焊焊枪的设计及仿真分析[J].精密成形工程,2024,16(7):153-162.
CHEN Chang,ZHU Jiapei,LIU Quanxiaoxiao,et al.Design and Simulation Analysis of Magnetic Pulse Spot Welding Torch[J].Journal of Netshape Forming Engineering,2024,16(7):153-162. |
| 磁脉冲点焊焊枪的设计及仿真分析 |
| Design and Simulation Analysis of Magnetic Pulse Spot Welding Torch |
| 投稿时间：2024-05-14 |
| DOI：10.3969/j.issn.1674-6457.2024.07.013 |
| 中文关键词: 磁脉冲点焊 焊枪 设计 线圈 仿真分析 |
| 英文关键词: magnetic pulse spot welding welding torch design coil simulation analysis |
| 基金项目:湖南省自然科学基金(2023JJ50340);湖南省教育厅科学研究项目(23C0319，22A0565);国家自然科学基金(52175315，52375331);深圳市科技计划(KQTD20200820113110016) |
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| 中文摘要: |
| 目的 根据现有平板线圈的不足，设计了一种用于自动化作业的磁脉冲点焊焊枪。方法 采用有限元模拟方法对比分析了磁脉冲点焊焊枪线圈和现有平板线圈的性能差异，并对磁脉冲点焊焊枪线圈的结构进行了优化。结果 当线圈工作部分高10 mm、宽4 mm时，焊枪线圈和平板线圈的最大电流密度、最大磁感应强度、最大洛伦兹力分别为3.142×1010A/m2和3.639×1010A/m2、19.40 T和21.69 T、5.149×1011 N和1.626×1012 N。当线圈工作部分宽4 mm时，随着高度由10 mm降低至4 mm，焊枪线圈的最大电流密度和最大洛伦兹力分别提升了27.56%和57.64%。当驱动能力接近时，焊枪线圈所产生的位移仅为平板线圈的13.09%。当焊枪线圈工作部分截面为10 mm×10 mm的方形时，飞板凸台在20 μs时的速度仅为200 m/s;而当截面为ϕ5.6 mm的圆形时，飞板凸台在19.2 μs时便产生237 m/s的速度。结论 在工作部分的高度和宽度相同的情况下，焊枪线圈的性能要弱于现有平板线圈的性能。在宽度不变的条件下降低焊枪线圈工作部分的高度可以增大飞板的电流密度、洛伦兹力和速度，并且在性能相近的情况下，焊枪线圈工作部分所受应力要小于现有平板线圈所受应力。另外，将磁脉冲点焊焊枪线圈工作部分的截面由方形替换为相同面积的圆形，可以获得更优的焊接条件。 |
| 英文摘要: |
| The work aims to design a magnetic pulse spot welding torch used for automatic operation based on the shortcomings of the existing flat coil. The performance differences between the magnetic pulse spot welding torch coil and the existing flat coil were compared and analyzed by finite element simulation. The structure of magnetic pulse spot welding torch coil was optimized. When the working part of the coil was 10 mm high and 4 mm wide, the maximum current density, maximum magnetic induction and maximum Lorentz force of the welding torch coil and the flat coil were 3.142×1010 A/m2 and 3.639×1010 A/m2, 19.40 T and 21.69 T, 5.149×1011 N and 1.626×1012 N, respectively. When the working part of the coil was 4 mm wide, the maximum current density and the maximum Lorentz force of the welding torch coil could be increased by 27.56% and 57.64% respectively by decreasing the height from 10 mm to 4 mm. When the driving capacity was close, the displacement generated by the welding torch coil was only 13.09% of that of the flat coil. When the cross section of the working part of the welding torch coil was a square with a size of 10 mm×10 mm, the velocity of the bump of the flyer plate was just 200 m/s at 20 μs; When the cross section was a circle with a diameter of 5.6 mm, the bump of the flyer plate reached the velocity of 237 m/s at 19.2 μs. The performance of the welding torch coil is weaker than that of the existing flat coil when the height and width of the working part of the two coils are the same. The current density, Lorentz force and speed of the flyer plate can be increased by reducing the height of the working part of the welding torch coil at constant width. Moreover, the stress on the working part of the welding torch coil is less than that on the existing flat coil in the case of similar performance. In addition, better welding conditions can be obtained by replacing the cross section of the working part of the magnetic pulse spot welding torch coil with a circle with the same area from a square. |
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