插接式铝合金底架自动焊焊接工艺优化

王陆钊; 杨仲林; 于岩; 赵丽玲; 李会

高速列车金属材料及焊接先进技术 | 浏览量 : 0 下载量: 36 CSCD: 2

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插接式铝合金底架自动焊焊接工艺优化
Optimization of fully mechanized welding process of plug-in aluminum alloy underframe
2018年48卷第3期页码：367-370
纸质出版：2018
DOI：
稿件说明：

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王陆钊, 杨仲林, 于岩, 等. 插接式铝合金底架自动焊焊接工艺优化[J]. 电焊机, 2018,48(3):367-370. DOI：

WANG Luzhao, YANG Zhonglin, YU Yan, et al. Optimization of fully mechanized welding process of plug-in aluminum alloy underframe[J]. Eletric Welding Machine2018, 48(3): 367-370. DOI：

摘要

从设计结构和工艺方法两个方面分析时速350 km标准动车组(复兴号)底架自动焊的对接焊缝未填满缺陷产生的原因

从设计结构、段焊工艺、焊接顺序、焊接工艺参数等方面着手制定优化方案并在项目上实施

解决了对接自动焊焊缝未填满问题

焊缝返修量显著下降

极大改善了焊后底架的平面度

有效降低调修工作量

适用于插接式底架自动焊的批量生产。

Abstract

In this paper

the causes of the incompletely filled groove of the butt welds in the fully mechanized welded underframe of the standard EMU at a speed of 350 km per hour were analyzed from the aspects of design structure and technological methods. In the aspects of design structure

intermittent welding technology

welding sequence

welding process parameters and so on

an optimization program has been developed and implemented in the project to completely solve the problem of incompletely filled groove during fully mechanized welding. As a result

weld repair amount dropped observably

which greatly improved the flatness after welding improved greatly

effectively reduce the work amount

suitable for mass production of plug-in aluminum alloy underframe to be fully mechanized welded.