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Dissimilar Welding and Joining of Cemented Carbides

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School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
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School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China
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Shanghai Collaborative Innovation Center of Laser Advanced Manufacturing Technology, Shanghai 201620, China
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MAHLE Holding (China) Co., Ltd., Shanghai 201401, China
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Authors to whom correspondence should be addressed.
Metals 2019, 9(11), 1161; https://doi.org/10.3390/met9111161
Received: 26 September 2019 / Revised: 17 October 2019 / Accepted: 21 October 2019 / Published: 28 October 2019
Cemented carbides have been widely used in aerospace, biomedical/wearable sensor, automobile, microelectronic, and other manufacturing industries owing to their superior physical and chemical properties at elevated temperatures. These superior properties, however, make it difficult to process these materials using conventional manufacturing methods. In this article, an overview of the welding and joining processes of cemented carbide and steel is given, followed by a few examples of welding processes. Cemented carbides can be successfully joined by sinter-bonding, brazing and soldering, laser beam welding, tungsten inert gas (TIG) welding, diffusion welding, friction welding, electron-beam welding, and chemical vapor deposition. An overview of the benefits and drawbacks of brazing and soldering of cemented carbide and steel is presented, including reports on joint design, processes, and selection of brazing filler metals. The laser welding of cemented carbide and steel is addressed and reviewed, including reports on gap bridging ability, the inclusion/absence of filler metals, interlayers, and laser/TIG hybrid welding. Finally, a section is devoted to explaining the main issues remaining in the welding and joining of cemented carbide, corresponding solutions, and future work required. View Full-Text
Keywords: cemented carbides; dissimilar welding; sinter-bonding; brazing; laser welding; metal-inert gas welding; diffusion bonding; tungsten carbides cemented carbides; dissimilar welding; sinter-bonding; brazing; laser welding; metal-inert gas welding; diffusion bonding; tungsten carbides
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MDPI and ACS Style

Ma, B.; Wang, X.; Chen, C.; Zhou, D.; Xu, P.; Zhao, X. Dissimilar Welding and Joining of Cemented Carbides. Metals 2019, 9, 1161.

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