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Narrow Gap Welding for Thick Titanium Plates: A Review

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Transactions on Intelligent Welding Manufacturing

Part of the book series: Transactions on Intelligent Welding Manufacturing ((TRINWM))

Abstract

Large and thick titanium alloy structures used in aerospace and marine fields need joint integrity to meet the requirements. Welding technology, an important form of joining materials, is crucial for the application and promotion of thick structural components. This paper reviews the issues and challenges in welding thick titanium alloys, introduces the process characteristics of automated welding technologies, and finally provides recommendations for future work. Research indicates that gas tungsten arc welding method with stable welding process is widely used in welding large titanium structures. As a promising alternative to traditional manufacturing method, laser welding with filler wire has been extensively studied in joining thick structure with the characteristics of narrower groove, high welding efficiency and low heat input. The formation mechanism and suppression measures of welding defects such as lack of sidewalls fusion, porosity, weld deformation and microstructural deterioration are discussed. The future work will focus on the welding process control and parameters optimization in automated welding.

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Acknowledgements

This project is supported by the National Key Research and Development Program of China (2016YFB0300602) and the National Natural Science Foundation of China (51475104).

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Authors and Affiliations

  1. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, China

    Qingjie Sun, Junzhao Li, Yibo Liu & Jicai Feng

  2. Shandong Provincial Key Laboratory of Special Welding Technology, Harbin Institute of Technology at Weihai, Weihai, 264209, China

    Qingjie Sun, Junzhao Li, Yibo Liu & Jicai Feng

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  1. Qingjie Sun
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Correspondence to Qingjie Sun .

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Editors and Affiliations

  1. Shanghai Jiaotong University , Shanghai, Shanghai, China

    Shanben Chen

  2. Depart. of Electrical and Comp. Eng., University of Kentucky Depart. of Electrical and Comp. Eng., Lexington, KY, USA

    Yuming Zhang

  3. Oak Ridge National Laboratory, Oak Ridge, USA

    Zhili Feng

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Sun, Q., Li, J., Liu, Y., Feng, J. (2019). Narrow Gap Welding for Thick Titanium Plates: A Review. In: Chen, S., Zhang, Y., Feng, Z. (eds) Transactions on Intelligent Welding Manufacturing. Transactions on Intelligent Welding Manufacturing. Springer, Singapore. https://doi.org/10.1007/978-981-13-8668-8_2

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