高速MAG电弧焊驼峰焊道产生过程的实验研究

金属学报

2008, Vol. 44

Issue (12): 1445-1449

论文

本期目录 | 过刊浏览

高速MAG电弧焊驼峰焊道产生过程的实验研究

胡志坤;武传松

山东大学南校区材料学院连接技术研究所

EXPERIMENTAL INVESTIGATION ON FORMING PROCESS OF HUMPING BEAD IN HIGH SPEEDMAG ARC WELDING

HU Zhikun;WU Chuansong

Institute for Materials Joining; Shandong University

引用本文:

胡志坤武传松. 高速MAG电弧焊驼峰焊道产生过程的实验研究[J]. 金属学报, 2008, 44(12): 1445-1449.
, . EXPERIMENTAL INVESTIGATION ON FORMING PROCESS OF HUMPING BEAD IN HIGH SPEEDMAG ARC WELDING[J]. Acta Metall Sin, 2008, 44(12): 1445-1449.

全文: PDF(1913 KB)

摘要:

开展了高速活性气体保护( MAG)电弧焊接工艺实验, 确定出了不同焊接电流条件下形成驼峰焊道时的临界焊接速度、相邻驼峰之间的距离以及同一驼峰焊道“波峰”和“谷底”的断面形貌. 基于高速MAG电弧焊熔池的视觉检测图像, 分析了驼峰焊道的产生机理, 并利用上坡焊和下坡焊实验进行了验证. 同时, 也分析了保护气体成分对高速MAG电弧焊焊缝成形的影响.

关键词 ：高速焊, 驼峰焊道, 活性气体保护电弧焊

Abstract：

High-speed metal-active gas (MAG) arc welding experiments were conducted to determine the critical welding speeds at which humping defects occur, the spacing between two adjacent humps along the welding direction, and the cross-section morphologies of the hump and the valley in a humping bead. Based on the weld pool images sensed during high-speed MAG welding process, the forming mechanism of humping bead is analyzed and verified through up-hill and down-hill welding experiments. Meanwhile, the effect of the compositions of shielding gas on the weld bead formation in high--speed MAG welding is also analyzed.

Key words： High-speed welding humping bead metal-active gas arc welding

收稿日期: 2008-03-31

ZTFLH:

TG409

基金资助:

国家自然科学基金资助项目50675119;高等学校博士学科点专项科研基金项目20050422027

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链接本文:

https://www.ams.org.cn/CN/ 或 https://www.ams.org.cn/CN/Y2008/V44/I12/1445

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