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Microstructure and Mechanical Properties of ZL114A and 6061 Dissimilar Aluminum Alloy Welded Joints by Laser Welding Process
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Xiangchao MENG1, 2, Youping SUN1, 2, 3, Jiangmei HE1, 2, 3, Yong ZHOU1, 2, Shangheng XIE1, 2
Mining and Metallurgical Engineering | 2023, 43(3) : 160 - 164
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Mining and Metallurgical Engineering | 2023, 43(3): 160-164
• MATERIALS •
Microstructure and Mechanical Properties of ZL114A and 6061 Dissimilar Aluminum Alloy Welded Joints by Laser Welding Process
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Xiangchao MENG1, 2, Youping SUN1, 2, 3, Jiangmei HE1, 2, 3, Yong ZHOU1, 2, Shangheng XIE1, 2
Affiliations
  • 1.School of Mechanical and Automobile Engineering, Guangxi University of Science and Technology, Liuzhou 545006, Guangxi, China
  • 2.Guangxi Earthmoving Machinery Collaborative Innovation Center, Liuzhou 545006, Guangxi, China
  • 3.Guangxi Key Laboratory of Automobile Components and Vehicle Technology, Guangxi University of Science and Technology, Liuzhou 545006, Guangxi, China
Published: 2023-06-01 doi: 10.3969/j.issn.0253-6099.2023.03.036
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An orthogonal experiment was performed for laser welding of 5 mm ZL114A and 6061 aluminum alloys, and the influences of welding parameters on the microstructure and mechanical properties of welded joint were investigated. It is shown that the influences of three parameters of laser welding power, defocus and welding speed are in a descending order. With laser welding power of 3 kW, welding speed of 16 mm/s and the defocus of -3 mm, the welded joint has an average tensile strength of 208.03 MPa and the elongation of 5.16%. Compared to ZL114A and 6061 aluminum alloy, the tensile strength is reduced to 64.14% and 65.60%, respectively, while the elongation is reduced to 41.38% and 33.70%, respectively. The welded joint presents a mixed mode of brittle and ductile fracture when failing under tensile.

subframe  /  laser welding  /  welded joint  /  ZL114A  /  6061  /  aluminum alloy  /  orthogonal test  /  welding process  /  microstructure  /  mechanical property
Xiangchao MENG, Youping SUN, Jiangmei HE, Yong ZHOU, Shangheng XIE. Microstructure and Mechanical Properties of ZL114A and 6061 Dissimilar Aluminum Alloy Welded Joints by Laser Welding Process[J]. Mining and Metallurgical Engineering, 2023 , 43 (3) : 160 -164 . DOI: 10.3969/j.issn.0253-6099.2023.03.036
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doi: 10.3969/j.issn.0253-6099.2023.03.036
  • Receive Date：2022-12-17
  • Online Date：2026-03-05
  • Published：2023-06-01
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  • Received：2022-12-17
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Affiliations
    1.School of Mechanical and Automobile Engineering, Guangxi University of Science and Technology, Liuzhou 545006, Guangxi, China
    2.Guangxi Earthmoving Machinery Collaborative Innovation Center, Liuzhou 545006, Guangxi, China
    3.Guangxi Key Laboratory of Automobile Components and Vehicle Technology, Guangxi University of Science and Technology, Liuzhou 545006, Guangxi, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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