Materials Reports  2020, Vol. 34 Issue (Z2): 465-468 |
| METALS AND METAL MATRIX COMPOSITES |
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| Research on Resistance Spot Welding Technology of Aluminium Alloy-Low Carbon Steel Dissimilar Metal |
| LEI Da, WANG Hailin, ZHOU Biao, LI Xian, BAO Shuang
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| School of Materials Science and Engineering, Hubei University of Automotive Technology,Shiyan 442002,China |
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Abstract The MD-40KA intermediate frequency inverter spot welding machine was used to study the resistance spot welding technology of 5083 aluminum alloy and Q235 low carbon steel with thickness of 1.5 mm. The method of controlling variables was used to study the effects of welding current, energization time and electrode pressure on mechanical properties to determine the range of welding parameters, and then orthogonal test was used to optimize the welding process parameters, meanwhile the mechanical properties of the welded joints were inspected. The results show that: when the welding current, energization time and electrode pressure are 11.5 kA, 350 ms and 0.22 MPa,welded joints with excellent mechanical properties can be obtained and the tensile shear force can reach 4.7 kN.
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Published: 08 January 2021
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| Fund:This work was financially supported by the Undergraduate Innovation and Entrepreneurship Foundation of Hubei University of Automotive Technology (DC2020059). |
| About author:: Da Lei, undergraduate student of Hubei University of Automotive Technology, who was named the 2019 "Star of Self-improvement for University Students in Hubei Province". He participated in a number of provincial-level scientific research projects, mainly related to the research on the impact toughness of laser cladding alloy powder on the surface of materials. He has obtained 5 invention patents and 2 utility model patents. Hailin Wang, assistant experimenter at Hubei University of Automotive Technology, joined the School of Materials Science and Engineering of Hubei University of Automotive Technology in 2018. He mainly engaged in the research of aluminum-steel dissimilar material connection technology and new energy materials. He has published 13 teaching and scientific research papers in related journals, and 2 papers were included in SCI, 3 papers were included in EI, and 3 papers were Chinese core journal. |
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