高速列车金属材料及焊接先进技术 | 浏览量 : 108 下载量: 139 CSCD: 3
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    • 焊接工艺对SUS301L不锈钢残余应力的影响

    • Effect of welding procedure on the residual stress of SUS301L stainless steel welded joints

    • 李晓东

      12

      孙晓红

      1

      孟立春

      1
    • 2018年48卷第3期 页码:281-284   

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  • 李晓东, 孙晓红, 孟立春. 焊接工艺对SUS301L不锈钢残余应力的影响[J]. 电焊机, 2018,48(3):281-284. DOI:
    LI Xiaodong, SUN Xiaohong, MENG Lichun. Effect of welding procedure on the residual stress of SUS301L stainless steel welded joints[J]. 2018,48(3):281-284. DOI:
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摘要

基于二维探测器的X射线衍射法,研究MIG焊、激光焊和激光-MIG复合焊的SUS301L-MT不锈钢接头的残余应力分布。结果表明:3种焊接工艺所得接头的残余应力分布趋势均呈"M"形;焊缝及热影响区内为拉应力,母材区域为压应力,应力峰值均出现在热影响区内;MIG焊接头具有最高的纵向残余应力(631 MPa)和横向残余应力(400 MPa),激光焊和激光-MIG复合焊接头的残余应力值基本相同,纵向和横向分别约为490 MPa和360 MPa。

EN

Abstract

The residual stress distribution of SUS301 L-MT welded joints by the processes of MIG welding,laser welding and laserMIG hybrid welding were studied X-ray diffraction of two dimensional detector. The results showed that residual stresses under the three welding processes were distributed in "M" pattern,with tensile stress in weld zone and HAZ zone and compressive stress in base zone. The peak stress value was in HAZ zone. The peak longitudinal stress of 631 MPa and peak transverse stress of 400 MPa were found in the MIG welded joints. The residual stresses of laser welded joints and laser-MIG hybrid welded joints were almost the same,with the peak longitudinal stress 490 MPa and peak transverse stress 360 MPa.

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关键词

二维探测器; X射线; SUS301L-MT不锈钢; 焊接残余应力

EN

Keywords

two dimensional detector; X-ray; SUS 301L-MT stainless steel; welding residual stress

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扬州大学机械工程学院
扬州工业职业技术学院
江苏科技大学江苏省先进焊接技术重点实验室
泛亚汽车技术中心有限公司
中建钢构有限公司
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