6005A合金搅拌摩擦焊焊接工艺性能研究

张富亮; 徐宁; 王宇; 都伟; 荣光明

doi:10.7512/j.issn.1001-2303.2021.07.11

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6005A合金搅拌摩擦焊焊接工艺性能研究
Study on friction stir welding process performance of 6005A alloy
2021年51卷第7期页码：62-65
纸质出版：2021
DOI： 10.7512/j.issn.1001-2303.2021.07.11
稿件说明：

移动端阅览

张富亮, 徐宁, 王宇, 等. 6005A合金搅拌摩擦焊焊接工艺性能研究[J]. 电焊机, 2021,51(7):62-65. DOI： 10.7512/j.issn.1001-2303.2021.07.11.

ZHANG Fuliang, XU Ning, WANG Yu, et al. Study on friction stir welding process performance of 6005A alloy[J]. Eletric Welding Machine2021, 51(7): 62-65. DOI： 10.7512/j.issn.1001-2303.2021.07.11.

摘要

利用搅拌摩擦焊在4种不同的工艺参数下对3 mm厚6005A合金板材进行焊接工艺对比实验。通过对焊缝位置进行力学拉伸、硬度、正向弯曲、宏观金相、微观金相分析

确定最优焊接工艺。研究表明:当摩擦头转速为1 200 r·min

-1

、焊接速度为700 mm·min

-1

时

拉伸断裂位置出现在热影响区附近且断面呈"颈缩"现象

维氏硬度分布呈"W"形

微观组织存在局部细小S线

力学值高于标准且优于其他三种工艺参数

为生产工艺提供了技术支持。

Abstract

Friction stir welding（FSW） is used to conduct different welding process contrast experiment of 3 mm thick 6005A alloy plate. Through the mechanical tensile

hardness

forward bending

macro metallographic and micro metallogra-phic analysis of the weld position

the optimal welding process is finally determined. Research shows that when the rotational speed of the friction head is 1 200 r·min

-1

and the welding speed is 700 mm ·min

-1

the mechanical tensile fracture occurs near the heat affected zone and the fracture surface shows "necking" phenomenon

the Vickers hardness distribu-tion is W-shaped

and there are small S-lines in the micro-structure. The mechanical value is higher than the standard and better than the other three welding parameters

which meets the production process requirements and provides technical support for the production process.