Quantitative analysis of surfaces of cross-section in butt welding of aluminum alloy 5083 using laser–arc hybrid welding

2021 ◽  
pp. 2140031
Author(s):  
Ji-Sung Kim ◽  
Jong-Do Kim
Keyword(s):  
Aluminum Alloy ◽  
Laser Welding ◽  
High Strength ◽  
Sem Analysis ◽  
Hybrid Welding ◽  
Butt Welding ◽  
Solid Solution Strengthening ◽  
Aluminum Alloy 5083 ◽  
Epma Analysis ◽  
Acta Mater

The alloy aluminum of 5000 series will have relatively high strength through solid solution strengthening of Mg. However, when laser welding the 5000 series aluminum alloys, the Mg is selectively evaporated by welding heat due to its low melting and vaporization points, resulting in a reduction in the strength of welds. Therefore, laser welding application is difficult because of such a reduction in strength1[Formula: see text]2 [M. Peel, A. Steuwer, M. Preuss and P. J. Withers,Acta Mater. 51, 4791 (2003); A. Haboudou, P. Peyre, A. B. Vannes and G. Peix, Mater. Sci. Eng. A 363, 40 (2003)]. In this paper, welding experiments were carried out using laser and laser–arc hybrids on aluminum alloy 5083 with 8-mm thickness. Tensile testing, scanning electron microscopy (SEM) analysis and electron probe microanalyzer (EPMA) analysis were carried out on specimens on which the laser and laser–arc hybrid weldings were performed. According to the tensile test results, the tensile strength during laser–arc hybrid welding was greater than 85% of the parent metal. In addition, EPMA analysis showed that the strength of the laser–arc hybrid welds was maintained by supplementing the optional evaporating Mg element, since they use the filler wire.

Laser–arc hybrid welding of high-strength steel and aluminum alloy joints with brass filler

2017 ◽  
Vol 33 (7) ◽  
pp. 735-742 ◽  
Author(s):  
Hongyang Wang ◽  
Baoqiang Feng ◽  
Gang Song ◽  
Liming Liu
Keyword(s):  
Aluminum Alloy ◽  
High Strength Steel ◽  
High Strength ◽  
Hybrid Welding

scholarly journals Dissimilar Metals Laser Welding between DP1000 Steel and Aluminum Alloy 1050

Metals ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 102 ◽  
Author(s):  
António Pereira ◽  
Ana Cabrinha ◽  
Fábio Rocha ◽  
Pedro Marques ◽  
Fábio Fernandes ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Laser Welding ◽  
Mechanical Tests ◽  
Welding Parameters ◽  
Dissimilar Metals ◽  
Butt Welding ◽  
Electron Microscopes ◽  
1050 Aluminum Alloy ◽  
Scanning Electron Microscopes

The welding of dissimilar metals was carried out using a pulsed Nd: YAG laser to join DP1000 steel and an aluminum alloy 1050 H111. Two sheets of each metal, with 30 × 14 × 1 mm3, were lap welded, since butt welding proved to be nearly impossible due to the huge thermal conductivity differences and melting temperature differences of these materials. The aim of this research was to find the optimal laser welding parameters based on the mechanical and microstructure investigations. Thus, the welded samples were then subjected to tensile testing to evaluate the quality of the joining operation. The best set of welding parameters was replicated, and the welding joint obtained using these proper parameters was carefully analyzed using optical and scanning electron microscopes. Despite the predicted difficulties of welding two distinct metals, good quality welded joints were achieved. Additionally, some samples performed satisfactorily well in the mechanical tests, reaching tensile strengths close to the original 1050 aluminum alloy.

Comparison on welding mode characteristics of arc heat source for heat input control in hybrid welding of aluminum alloy

2015 ◽  
Vol 29 (06n07) ◽  
pp. 1540016
Author(s):  
Moo-Keun Song ◽  
Jong-Do Kim ◽  
Jae-Hwan Oh
Keyword(s):  
Experimental Study ◽  
Aluminum Alloy ◽  
Heat Source ◽  
Laser Welding ◽  
Heat Input ◽  
Heat Sources ◽  
Hybrid Welding ◽  
Input Control ◽  
Mode Characteristics ◽  
Pulsed Arc

Presently in shipbuilding, transportation and aerospace industries, the potential to apply welding using laser and laser-arc hybrid heat sources is widely under research. This study has the purpose of comparing the weldability depending on the arc mode by varying the welding modes of arc heat sources in applying laser-arc hybrid welding to aluminum alloy and of implementing efficient hybrid welding while controlling heat input. In the experimental study, we found that hybrid welding using CMT mode produced deeper penetration and sounder bead surface than those characteristics produced during only laser welding, with less heat input compared to that required in pulsed arc mode.

The High Frequency Pulse Effect and Verification in the Welding Process for High-Strength Aluminum Alloy

2011 ◽  
Vol 130-134 ◽  
pp. 27-31 ◽  
Author(s):  
Si Bo Yan ◽  
Yong Lun Song ◽  
Jun Zhang ◽  
Li Lai Bai
Keyword(s):  
Aluminum Alloy ◽  
Pulse Energy ◽  
High Frequency ◽  
Welding Process ◽  
High Strength ◽  
Pulse Action ◽  
Welding Seam ◽  
Butt Welding ◽  
High Strength Aluminum Alloy ◽  
Frequency Pulse

The plate butt welding tests have been carried out to the 2219 high-strength aluminum alloy material by utilizing the self-development compound high frequency pulse TIG power source, whose results show that the mechanical properties of the welding seam may be effectively enhanced by adding the high frequency pulse energy. Therefore, a acoustic emission sensing system was established to acquire the transmission effect of the high frequency pulse arc energy during the welding process; moreover, the influence on the welding seam microstructures by the compound high frequency pulse energy has been studied. The results show the following effects: the porosity number at the both sides of the welding seam fusion line may be decreased significantly by adding the high frequency pulse energy; The analysis to the high frequency pulse action mechanism has been carried out according to the above conclusions to provide the technology theory base for improving and enhancing the aluminum alloy welding joint performances.

Laser-Arc Hybrid Welding Properties of Aluminum Alloy 6005A

2014 ◽  
Vol 651-653 ◽  
pp. 50-55 ◽  
Author(s):  
Xing Ye Jin ◽  
Guang Hao Song ◽  
Wei Gang Zheng
Keyword(s):  
Aluminum Alloy ◽  
Standardized Test ◽  
High Strength ◽  
Alloy Sheet ◽  
The Body ◽  
Hybrid Welding ◽  
Test Results ◽  
Welding Properties ◽  
Good Heat Resistance ◽  
Standardized Test Results

6005A extruded aluminum with good heat resistance, corrosion resistance, weldability, also has a relatively high strength, good overall performance, designed to meet the speed requirements of the body. Optional 6005A-T5 aluminum alloy sheet be 11 kinds of process parameters laser - arc hybrid welding, by comparison, select standardized test results carried out to optimize weld joints microstructure, mechanical properties of weld performance analysis.

LASER WELDING OF T-BEAM FROM HETEROGENEOUS ALLOYS

2020 ◽  
Author(s):  
Сергей Вячеславович Курынцев ◽  
Андрей Владиленович Евлампьев
Keyword(s):  
Aluminum Alloy ◽  
Laser Welding ◽  
Welding Process ◽  
Lap Joint ◽  
Aluminum Alloy 5083 ◽  
Pre Treatment ◽  
T Beam ◽  
Heterogeneous Alloys ◽  
Laser Welding Process

В данной работе пересматривается процесс лазерной сварки для соединения стали 18ГСА (DH36) с алюминиевым сплавом 5083 (AA5083) из конфигурации нахлесточного соединения в тавровое, используя уже имеющиеся исследования. In this paper, the laser welding process for joining steel 18GSA (DH36) with aluminum alloy 5083 (AA5083) from the configuration of lap joint to T-joint is reviewed using existing studies. Pre-treatment of materials before welding is also considered.

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