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激光焊接三明治结构T型接头的研究

Study of Laser Welding T-Joint of Sandwich Structure

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摘要

本试验采用IPG YLS-5000型激光焊接系统,焊接舰船用高强钢907A三明治板。采用万能试验机、显微硬度仪、超景深三维数码显微镜以及扫描电镜,测定了T型焊接接头的拉脱力学性能、显微硬度、显微组织和断口形貌。结果表明,焊缝和热影响区的显微硬度均高于母材,焊缝显微硬度在330~360 HV0.2之间;焊缝组织为板条马氏体,热影响区组织主要为马氏体、残余奥氏体及少量析出碳化物;T型接头断口属于兼有韧性断裂和解理断裂的综合断裂;焊接速度和离焦量一定时,焊缝宽度和深度随激光功率的提高而增大;T型搭接接头的力学性能主要取决于搭接处的焊缝宽度,在当前工艺条件下进行3道次的激光焊,能保证腹板和面板的接合强度比母材的强度大。

Abstract

Laser welding high strength steel 907A sandwich structure by IPG YLS-5000 laser welding system in this experiment. Tensile properties, microstructure, fracture morphology and microhardness of T-joints are measured by universal testing machine, microhardness tester, super depth of field three-dimensional digital microscope and scanning electron microscope. The results show that, the microhardnesses of welding seams and heat affected zone are higher than that of base metal. The microhardness of weld seam is between 330 HV0.2 and 360 HV0.2. Microstructures of weld seams are lathy martensites, and microstructures of heat affected zone mostly are martensites, residual austenite and a small amount of carbides. T-joint fracture is a composite fracture, which both have ductile fracture and cleavage fracture. In the case that welding speed and coke are certain, weld width and depth increase with higher laser power. Mechanical performance of T-joint mainly depends on the weld width. Under the conditions of this test process, it needs 3 times single laser welding, to ensure that the web and panel joint strength is bigger than the strength of the base metal.

Newport宣传-MKS新实验室计划
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中图分类号:TG456.7

DOI:10.3788/cjl201441.0403003

所属栏目:激光加工与应用

责任编辑:宋梅梅  信息反馈

基金项目:国家自然科学基金项目(51305253,51375294)

收稿日期:2013-10-21

修改稿日期:2013-11-06

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作者单位    点击查看

杨橄生:上海工程技术大学材料工程学院, 上海 201620
于治水:上海工程技术大学材料工程学院, 上海 201620
卢庆华:上海工程技术大学材料工程学院, 上海 201620
郭崇:上海工程技术大学材料工程学院, 上海 201620
诸振涛:上海工程技术大学材料工程学院, 上海 201620

联系人作者:杨橄生(neuygs@163.com)

备注:杨橄生(1986—),男,硕士研究生,主要从事激光焊接方面的研究。

【1】David Havrilla. Successful laser welding demands optimized laser joint design[J]. Laser Focus World, 2012, 48(9): 43-48.

【2】Zhong Minlin, Liu Wenjin. Leading areas and hot topics on global laser materials processing research[J]. Chinese J Lasers, 2008, 35(11): 1653-1659.
钟敏霖, 刘文今. 国际激光材料加工研究的主导领域与热点[J]. 中国激光, 2008, 35(11): 1653-1659.

【3】Yin Haoshu. Laser welding in shipbuilding in Europe[J]. Electric Welding Machine, 2005, 35(7): 1-5.
殷浩澍. 激光焊接在欧洲造船业的应用[J]. 电焊机, 2005, 35(7): 1-5.

【4】Zhang Yongkang. Laser Processing Technology[M]. Beijing: Chemical Industry Press, 2004. 68-76.
张永康. 激光加工技术[M]. 北京: 化学工业出版社, 2004. 68-76.

【5】H Toftegaard, A Lystrup. Design and test of lightweight sandwich T-joint for naval ships[J]. Composites: Part A: Applied Science and Manufacturing, 2005, 36(8): 1055-1065.

【6】Jeff Defalco. Practical applications for hybrid laser welding[J]. Welding Journal, 2007, 86(10): 47-51.

【7】Jens Klstrup Kristensen. State of art in shipbuilding applications of hybrid laser-arc welding[C]. Copenhagen: NOLAMP Conference 12, 2009. 1-13.

【8】J Jelovica, J Romanoff, S Ehlers. Influence of weld stiffness on buckling strength of laser welded web-core sandwich plates[J]. Journal of Constructional Steel Research, 2012, 77: 12-18.

【9】Guo Xiaojun. Study on Properties of Laser Welded T-Lap Joint of High Strength Low Alloy Steel[D]. Shanghai: Shanghai Jiao Tong University, 2012. 27-31.
郭晓军. 激光焊接低合金高强钢T型搭接接头性能研究[D]. 上海: 上海交通大学, 2012. 27-31.

【10】Gou Ningnian. Deformation and Damage Behaviour of CCS-B Laser Welding Joint in Sandwich Panels[D]. Lanzhou: Lanzhou University of Technology, 2012. 18-47.
苟宁年. CCS-B激光焊三明治板接头大变形及损伤的研究[D]. 兰州: 兰州理工大学, 2012. 18-47.

【11】Zhang Wenyue. Welding Metallurgy (Basic Principle)[M]. Beijing: China Machine Press, 2003. 43-57.
张文钺. 焊接冶金学(基本原理)[M]. 北京: 机械工业出版社, 2003. 43-57.

【12】Liu Qibin, Bai Lifeng. Microstructure and properties of ultra-high strength steel 30CrMnSiNi2A by laser welding[J]. Chinese J Lasers, 2009, 36(8): 2182-2186.
刘其斌, 白丽锋. 超高强度30CrMnSiNi2A钢的激光焊接组织及性能[J]. 中国激光, 2009, 36(8): 2182-2186.

【13】Mikko Jutila. Failure Mechanism of a Laser Stake Welded T-Joint[D]. Helsinki: Helsinki University of Technology, 2009. 29-31.

【14】Tian Yan. The Weld Zone Fracture Metallographic Analysis[M]. Beijing: China Machine Press, 1991. 67-73.
田燕. 焊接区断口金相分析[M]. 北京: 机械工业出版社, 1991. 67-73.

引用该论文

Yang Gansheng,Yu Zhishui,Lu Qinghua,Guo Chong,Zhu Zhentao. Study of Laser Welding T-Joint of Sandwich Structure[J]. Chinese Journal of Lasers, 2014, 41(4): 0403003

杨橄生,于治水,卢庆华,郭崇,诸振涛. 激光焊接三明治结构T型接头的研究[J]. 中国激光, 2014, 41(4): 0403003

被引情况

【1】魏菁,王欢,石少坚,黄坚,施可扬. 10CrSiNiCu 船用高强钢光纤激光焊接接头组织和性能. 中国激光, 2016, 43(3): 303003--1

【2】郭相忠,刘伟,王昌坤,刘慧玉,范佳斐. 301L搭接激光焊接接头拉伸过程的弹塑性演变及断裂数值分析. 中国激光, 2018, 45(12): 1202003--1

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