Microstructure and Mechanical Properties of Friction Plug Repair Welding Joint on Low Alloy High Strength Steel Threaded Hole

ZHU Hongbin; HE Bin; LI Xiaohua; WU Yuan; CUI Lei

doi:10.7512/j.issn.1001-2303.2024.02.11

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Microstructure and Mechanical Properties of Friction Plug Repair Welding Joint on Low Alloy High Strength Steel Threaded Hole
Vol. 54, Issue 2, Pages: 70-76(2024)
DOI： 10.7512/j.issn.1001-2303.2024.02.11

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祝弘滨，何宾，李晓华，等.低合金高强钢螺纹孔摩擦塞补焊修复接头的组织与性能研究［J］.电焊机，2024，54（2）：70-76.

ZHU Hongbin, HE Bin, LI Xiaohua, et al.Microstructure and Mechanical Properties of Friction Plug Repair Welding Joint on Low Alloy High Strength Steel Threaded Hole[J].Electric Welding Machine, 2024, 54(2): 70-76.
祝弘滨，何宾，李晓华，等.低合金高强钢螺纹孔摩擦塞补焊修复接头的组织与性能研究［J］.电焊机，2024，54（2）：70-76. DOI： 10.7512/j.issn.1001-2303.2024.02.11.

ZHU Hongbin, HE Bin, LI Xiaohua, et al.Microstructure and Mechanical Properties of Friction Plug Repair Welding Joint on Low Alloy High Strength Steel Threaded Hole[J].Electric Welding Machine, 2024, 54(2): 70-76. DOI： 10.7512/j.issn.1001-2303.2024.02.11.

摘要

针对轨道车辆零件螺纹孔摩擦塞补焊修复工艺及性能进行了研究。在优化的塞孔/塞棒几何参数和焊接工艺参数下制备了无缺陷的焊接接头，并分析焊接接头的微观组织、拉伸性能、冲击韧性和疲劳性能。结果显示，当轴向压力过大，接头界面处会形成未焊合缺陷。在转速为7 000 r/min、轴向压力35 kN、顶锻压力40 kN、塞棒进给量18 mm的参数下，可以获得成形良好的无缺陷接头。靠近结合界面的微观组织主要为珠光体、铁素体和部分板条状贝氏体。焊缝中的微观组织为针状铁素体和大量晶界铁素体，以及少量的板条状贝氏体。焊接接头具有优良的力学性能，其拉伸性能与母材相当，室温拉伸试验中，接头断裂位置均位于母材；疲劳实验中，螺栓外螺纹总是先于修复螺纹孔内螺纹发生疲劳断裂，修补螺纹的500万次疲劳强度达到142 MPa。

Abstract

In this paper

the friction plug repair welding process and mechanical properties for the threaded hole on rail vehicle part were studied. The defect-free repair welding joints with optimized geometries of the plug/hole and welding parameters were obtained

and their microstructure

tensile properties

impact toughness and fatigue properties were analyzed. The results showed that incomplete penetration occurred in the bonding interface at high axial force. The defect-free joints were obtained with a rotation speed of 7 000 r/min

axial force 35 kN

thrust force 40 kN

and the plug feeding 18 mm. The microstructure near the bonding interface consists of pearlite

ferrite and some lath bainite

at the nugget zone is acicular ferrite

a large amount of grain boundary ferrite and a small amount of lath bainite. The defect-free joint has excellent mechanical properties

the tensile properties are equivalent to that of base metal

the fracture position of the joints are all located in the base metal at room temperature tensile test. In the fatigue test

the external thread of bolt always cracked precedes that of the internal thread of repair thread hole

The five million cycles fatigue strength of repair thread by plug welding reaches 142 MPa.

关键词

低合金高强钢螺纹孔摩擦塞补焊微观组织力学性能

Keywords

low alloy high strength steelthreaded holefriction plug repair weldingmicrostructuremechanical properties

references

Arora K S， Pandey S， Schaper M， et al. Microstructure Evolution during Friction Stir Welding of Aluminum Alloy AA2219［J］. Journal of Materials Science & Technology， 2010， 26（8）： 747-753.

Lei X F， Deng Y， Yin Z M， et al. Tungsten Inert Gas and Friction Stir Welding Characteristics of 4-mm-Thick 2219-T87 Plates at Room Temperature and-196 °C［J］. Journal of Materials Engineering and Performance， 2014， 23（6）： 21-49-2158.

Balasubramanian V， Lakshminarayanan A K. The mechanical properties of the GMAW， GTAW and FSW joints of the RDE-40 aluminum alloy［J］. International Journal of Microstructure and Materials Properties， 2008， 3（6）： 837-853.

李杨，李根，周云方. 搅拌摩擦焊缺陷无损检测技术研究进展［J］. 焊接技术， 2020， 49（02）： 1-4.

LI Y， LI G， ZHOU Y F. Research progresses of non-destructive testing techniques for friction stir welding defects［J］. Welding Technology， 2020， 49（02）： 1-4.

Marcio F M. Friction Plug Welding Methods and Systems［P］. United States Patent. US7975896B2. 2011.

黄永宪，陈磊，谢聿铭，等. 搅拌摩擦焊缝缺陷固相修复技术研究进展［J］. 辽宁石油化工大学学报， 2019， 39（02）： 88-93.

HUANG Y X， CHEN L， XIE Y M， et al. Research progress of solid phase repair technology for friction stir weld defects［J］. Journal of Liaoning Petrochemical University， 2019， 39（02）： 88-93.

刘凯旋. 铝合金搅拌摩擦焊缝摩擦塞补焊工艺与组织性能研究［D］. 天津：天津大学， 2017.

LIU K X. Study on microstructures and mechanical properties of friction plug welds repairing for aluminum friction stir welded joints［D］. Tianjin：Tianjin University，2017.

刘现伟，钱炜. 拉拔式塞补焊焊接工艺参数优化的研究［J］. 农业装备与车辆工程， 2017， 55（05）： 74-77.

LIU X W， QIAN W. Research parameters on optimization of pull friction plug welding［J］. Agricultural Equipment & Vehicle Engineering， 2017， 55（05）： 74-77.

Metz D F， Weishaupt E R， Barkey M E， et al. A Microstructure and Microhardness Characterization of a Friction Plug Weld in Friction Stir Welded 2195 Al-Li［J］. Journal of Engineering Materials and Technology， 2012， 134： 1-7.

卢鹏，崔雷，王惠苗，等. 2219铝合金拉锻式摩擦塞补焊工艺研究［J］. 航空制造技术， 2019， 62（12）： 55-64.

LU P， CUI L， WANG H M， et al. Friction pull plug welding process of 2219 aluminum alloy. Aeronautical Manufacturing Technology， 2019， 62（12）： 55-64.

CUI L， LU P， LI W K， et al. Influence of axial force parameters to the quality of friction pull plug welding for 2219-T87 aluminium alloy sheets［J］. Science and Technology of Welding and Joining， 2019： 24（1）： 27-35.

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