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Meeting MS&T23: Materials Science & Technology
Symposium Processing and Performance of Materials Using Microwaves, Electric and Magnetic Fields, Ultrasound, Lasers, and Mechanical Work – Rustum Roy Symposium
Presentation Title N-7: Research on Green Laser Welding Process and Monitoring Technologies for Manufacturing Parts of Electric Vehicles
Author(s) Heeshin Kang, Hyunjong Yoo, Jiwhan Noh, Jiyeon Choi, Soojin Choi, Junsu Park, Myungjin Kim, Jongsik Kim, Eunjoon Chun
On-Site Speaker (Planned) Heeshin Kang
Abstract Scope The stable quality of battery welding is important for the electric vehicle. In addition, in the case of dissimilar materials, in copper-steel welding, the two materials do not form an intermetallic compound due to low solubility with each other. In general, the upper part of the battery can and the bus bar use copper (Cu) material, which is a material with good conductivity, but the upper material of the battery uses aluminum in terms of weight reduction and sometimes uses steel in terms of mechanical strength and corrosion resistance. In this study, nickel-coated copper and mild steel materials used in battery tabs and bus bars were welded using a green laser through various process conditions and scan patterns in order to have more stable welding quality. Optimal process parameters that minimize spatter, internal defects, and internal segregation of welds were suggested through excellent mechanical properties and surface and cross-section analysis.


Effects of Heat Treatment under External Magnetic Field on Microstructure and Mechanical Properties of Ferritic/Martensitic Steels
Effects on Aluminum Alloys During Heat Treatment in a Magnetic Field
High-speed Synchrotron X-ray Imaging of Microstructural Refinement Mechanisms During Ultrasonic Melt Processing in Metal Additive Manufacturing
Inhibition of Biofilm Formation on Glass Specimens when Subjected to AC Electromagnetic Fields of 20 kHz to 30 kHz
Microstructure Evolution and Property Enhancement of 3D-printed Graphene via Cold Rolling
Microwave Sintering for Lunar Base Construction
Microwave Synthesis of Cobalt Ferrite-reduced Graphene Oxide Composites
N-6: Improving Reliability of Ultrasonic Fatigue Testing through Comparative Analysis of Conventional and Ultrasonic Fatigue Tests on SS400 Material
N-7: Research on Green Laser Welding Process and Monitoring Technologies for Manufacturing Parts of Electric Vehicles
Post-processing of Irradiated FeCrAl by Electron Wind Force
Reviewing a Unified Phenomenological Comprehension on Non-thermal Effects in Microwave-assisted Materials Processing
The Role and Characterization of the Native Oxide Shell of Copper Metal Powder Spherical Particles During High Frequency Microwave Processing
Ultrasonic Vibration Acoustic Softening Effect on AISI 1018 Low-Carbon Steel

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