Design of PAW-GTAW Hybrid Welding Platform and Exploration of Hybrid Welding Process

WANG Hao; SONG Zhenghao; DING Tongming; LI Tianqing; BAO Jian; CHEN Changxin

doi:10.3969/j.issn.1674-6457.2026.04.011

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Journal of Netshape Forming Engineering ›› 2026, Vol. 18 ›› Issue (4) : 108-116. DOI: 10.3969/j.issn.1674-6457.2026.04.011

Advanced Joining Technology

Design of PAW-GTAW Hybrid Welding Platform and Exploration of Hybrid Welding Process

WANG Hao¹, SONG Zhenghao¹, DING Tongming², LI Tianqing^1,3,*, BAO Jian¹, CHEN Changxin¹

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Abstract

The work aims to study the PAW-GTAW hybrid welding process, achieve a synergistic effect of “1+1>2”, and obtain higher-quality and more efficient hybrid welded joints. A self-designed PAW-GTAW hybrid welding platform was constructed for experimentation. Firstly, by capturing the changes of each process arc before and after coupling and measuring the arc voltage and current signals, the static characteristics of the arc before and after coupling were further analyzed, thereby preliminarily exploring the mechanism of the PAW-GTAW hybrid welding process. Secondly, quantitative comparisons of weld penetration depth and bead width before and after coupling were conducted to elucidate the mechanism by which the coupled arc improved surface formation. The coupled arc significantly enhanced the stability of the plasma arc voltage while reducing the average PAW voltage after coupling, with minimal changes observed in the GTAW arc. The hybrid weld exhibited a synergistic penetration effect of "PAW penetration depth +GTAW penetration depth < PAW-GTAW hybrid welding penetration depth", and the bead width increased by 0.99 mm compared with single PAW welding. The PAW-GTAW hybrid welding process demonstrates a “1+1>2” advantage in welding speed and penetration depth. The coupled arc notably improves weld surface formation, indicating that the hybrid process not only increases arc energy density but also optimizes the thermal-mechanical distribution in the molten pool and the flow of molten metal.

Key words

PAW-GTAW / hybrid welding / platform design / arc characteristics / formation of weld surface

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WANG Hao, SONG Zhenghao, DING Tongming, LI Tianqing, BAO Jian, CHEN Changxin. Design of PAW-GTAW Hybrid Welding Platform and Exploration of Hybrid Welding Process[J]. Journal of Netshape Forming Engineering. 2026, 18(4): 108-116 https://doi.org/10.3969/j.issn.1674-6457.2026.04.011

References

[1] 潘际銮. 二十一世纪焊接科学研究的展望[C]//中国机械工程学会焊接学会. 第九次全国焊接会议论文集, 天津, 1999: 10-26.
PAN J L.Prospects for Welding Science Research in the 21st Century[C]//Welding Society of the Chinese Mechanical Engineering Society. Collected Papers of the 9^th National Welding Conference, Tianjin, 1999: 10-26.
[2] 崔旭明, 李刘合, 张彦华. 高效焊接工艺研究现状[J]. 新技术新工艺, 2004(7): 32-35.
CUI X M, LI L H, ZHANG Y H.Research Situation of High Efficiency Welding Process[J]. New Technology & New Process, 2004(7): 32-35.
[3] 刘鸿铭, 朱宗涛, 刘云祺, 等. 12 mm厚TC4钛合金激光-MIG复合焊接头组织与性能研究[J]. 精密成形工程, 2024, 16(5): 21-29.
LIU H M, ZHU Z T, LIU Y Q, et al.Microstructure and Mechanical Properties of 12 mm Thick TC4 Titanium Alloy Laser-MIG Hybrid Welded Joints[J]. Journal of Netshape Forming Engineering, 2024, 16(5): 21-29.
[4] YU J, CAI C, XIE J, et al.Weld Formation, Arc Behavior, and Droplet Transfer in Narrow-Gap Laser-Arc Hybrid Welding of Titanium Alloy[J]. Journal of Manufacturing Processes, 2023, 91: 44-52.
[5] VASHISHTHA H, KUMAR D, TAIWADE R V.Advanced Welding Techniques: Current Trends and Future Perspectives[M]. Boca Raton: CRC Press, 2024.
[6] YEO J S, SONG M K, KIM J D.ISMT2021 Effect of Parameters on Penetration Properties in Butt Welding of Super Duplex Stainless Steel Using PAW-TIG Heat Source[J]. Journal of Advanced Marine Engineering and Technology, 2022, 46(1): 15-22.
[7] KUMAR P R, SATHISH S, PRASAD A V S R, et al. Hybrid Optimization of Process Parameters in Manual Metal Arc Welding for Nanostructured Hard Facing[J]. E3S Web of Conferences, 2024, 588: 03019.
[8] KHOSHNAW F, KRIVTSUN I, KORZHYK V.Arc Welding Methods[M]. Amsterdam: Elsevier, 2023: 37-71.
[9] ZHANG L X, WU Z S, LI Y, et al.Mechanical Properties and Corrosion Resistance of TC4 Titanium Alloy Joints by Plasma Arc Welding+gas Tungsten Arc Welding Combination Welding[J]. Journal of Materials Science, 2024, 59(28): 13234-13250.
[10] LU F G, YAO S, LOU S N, et al.Modeling and Finite Element Analysis on GTAW Arc and Weld Pool[J]. Computational Materials Science, 2004, 29(3): 371-378.
[11] NILES R W, JACKSON C E.Weld Thermal Efficiency of the GTAW Process[J]. Welding Journal, 1975, 54(1): 25.
[12] GONÇALVES C V, VILARINHO L O, SCOTTI A, et al. Estimation of Heat Source and Thermal Efficiency in GTAW Process by Using Inverse Techniques[J]. Journal of Materials Processing Technology, 2006, 172(1): 42-51.
[13] DUPONT J N, MARDER A R.Thermal Efficiency of Arc Welding Processes[J]. Welding Journal-Including Welding Research Supplement, 1995, 74(12): 406s.
[14] NGUYEN T C, WECKMAN D C, JOHNSON D A, et al.High Speed Fusion Weld Bead Defects[J]. Science and Technology of Welding and Joining, 2006, 11(6): 618-633.
[15] ZHANG Y M, PAN C, MALE A T.Improved Microstructure and Properties of 6061 Aluminum Alloy Weldments Using a Double-Sided Arc Welding Process[J]. Metallurgical and Materials Transactions A, 2000, 31(10): 2537-2543.
[16] KOBAYASHI K, YUKI M, TEJIMA A, et al.Development of High Efficiency TIG Welding Method (SEDAR-TIG)[J]. IHI Engineering Review, 2006, 35: 137-142.
[17] KOBAYASHI K, NISHIMURA Y, IIJIMA T, et al.Practical Application of High Efficiency Twin-Arc TIG Welding Method (Sedar-TIG) for PCLNG Storage Tank[J]. Welding in the World, 2004, 48(7): 35-39.
[18] TASHIRO S.Interaction Mechanism of Arc, Keyhole, and Weld Pool in Keyhole Plasma Arc Welding: A Review[J]. Materials, 2024, 17(6): 1348.
[19] DWIBEDI S, BAG S.Critical Assessment on the Influence of Process Parameters in Micro-Plasma Arc Welding Process: A Review[J]. Welding International, 2024, 38(9): 583-617.
[20] SHAO Y K, WANG Y X, YANG Z B, et al.Plasma-MIG Hybrid Welding Hot Cracking Susceptibility of 7075 Aluminum Alloy Based on Optimum of Weld Penetration[J]. Acta Metallurgica Sinica, 2018, 54(4): 547-556.
[21] ZHANG Y M, ZHANG S B.Double-sided Arc Welding Increases Weld Joint Penetration[J]. Welding Journal-Including Welding Research Supplement, 1998, 77(6): 57-62.
[22] MOULTON J A, WECKMAN D C.Double-sided Arc Welding of AA5182-O Aluminum Sheet for Tailor Welded Blank Applications[J]. Weld Journal, 2010, 89(1): 11-23.
[23] TABAN E.Joining of Duplex Stainless Steel by Plasma Arc, TIG, and Plasma Arc+TIG Welding Processes[J]. Materials and Manufacturing Processes, 2008, 23(8): 871-878.
[24] 曹世杰, 张晓辉, 孙潇, 等. 纵缝等离子弧/TIG焊接系统[J]. 焊接技术, 2015, 44(2): 58-60.
CAO S J, ZHANG X H, SUN X, et al.Longitudinal Seam Plasma Arc/TIG Welding System[J]. Welding Technology, 2015, 44(2): 58-60.
[25] 纪昂. 等离子-TIG复合焊接电弧物理特性及工艺研究[D]. 哈尔滨: 哈尔滨工业大学, 2016: 12-15.
JI A.Research on Arc Physical Properties and Welding Processing Performance of PAW-TIG Hybrid Welding[D]. Harbin: Harbin Institute of Technology, 2016: 12-15.
[26] 王波, 桑健, 张洪涛, 等. 低碳钢等离子-TIG耦合电弧高效复合焊接工艺性能分析[J]. 焊接学报, 2019, 40(6): 94-99.
WANG B, SANG J, ZHANG H T, et al.Analysis on Welding Processing Properties of Plasma-TIG Coupling Arc Hybrid Welding[J]. Transactions of the China Welding Institution, 2019, 40(6): 94-99.
[27] 黄巍. 高速GMAW驼峰焊道成因及GMAW+TOPTIG复合焊抑制机理研究[D]. 上海: 上海交通大学, 2015: 54-56.
HUANG W.Study on the Causes of High-speed GMAW Hump Weld Bead and the Inhibition Mechanism of GMAW+TOPTIG Hybrid Welding[D]. Shanghai: Shanghai Jiao Tong University, 2015: 54-56.
[28] 张亮. 交叉耦合电弧焊接方法及热力传输机制研究[D]. 北京: 北京工业大学, 2016: 56-58.
ZHANG L.Study on the Thermos-dynamic Transmission Mechanisms in Cross Arc Welding Process[D]. Beijing: Beijing University of Technology, 2016: 56-58.
[29] 胡志坤. 高速GMAW焊接驼峰焊道的产生过程及抑制[D]. 济南: 山东大学, 2009: 47-54.
HU Z K.The Generation Process and Suppression of Humping Bead in High-speed GMAW[D]. Jinan: Shandong University, 2009: 47-54.