A Review of Arc Brazing Process and Its Application in Automotive

Yong Kim 1, Kiyoung Park 1, and Sungbok Kwak 2
1. Institute for Advanced Engineering, Robot Center, Yongin, Rep. of Korea
2. Duckyang Ind. Co., Ltd., R&D Center, Suwon, Rep. of Korea
Abstract—Brazing is a process for joining metallic materials with the aid of melted fillers like solder, the melting temperature of which is below that of the parent metal. In comparison to welding, it has different connection mechanisms also resulting in a lower energy requirement in soldering with advantages such as reduced damages to the material and lower levels of distortion. Therefore, in this research, we studied the efficiency of the GMA brazing process as compared to the conventional GMA welding. The temperature of parent metal is measured by using thermocouple and thermo-vision cameras. In addition, mechanical properties and weldability, such as tensile, hardness, microstructure is evaluated in lap joint structure. As the results, depending on the steel alloy used, arc brazed joints are as strong as GMA welded joints. Furthermore, corrosion resistance is better than welding in the case of stainless components. In conclusion, arc brazing process will be widely applied to thin sheet metal jointing especially for the automotive industry in the near future. 
 
Index Terms—arc brazing, copper wire, corrosion resistance, zinc coating, CMT, low heat input

Cite: Yong Kim, Kiyoung Park, and Sungbok Kwak, "A Review of Arc Brazing Process and Its Application in Automotive," International Journal of Mechanical Engineering and Robotics Research, Vol. 5, No. 4, pp. 246-250, October 2016. DOI: 10.18178/ijmerr.5.4.246-250
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