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http://dx.doi.org/10.7735/ksmte.2016.25.2.105

Temperature Distribution Analysis of Welding Parts in Ultrasonic Welding by Using FEM  

Kang, Eun-Ji (Department of Mechanical Engineering, Graduate School of Incheon National University)
Min, Kyung-Tak (Division of Mechanical System Engineering, Incheon National University)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.25, no.2, 2016 , pp. 105-111 More about this Journal
Abstract
Ultrasonic metal welding, unlike the conventional welding techniques, does not require an external heat source, welding rod, or filler metal. Therefore, ultrasonic metal welding is not only economical but also environment-friendly, and hence, it has been receiving much attention. In ultrasonic welding, heat is generated because of the plastic deformation and the friction between both surfaces of the welded materials. It is important to identify the heat-affected zone by measuring the temperature generated at the weld. In this study, the effects of the welding pressure, welding time, and vibration amplitude on the temperature distribution in the weld were evaluated by performing a transient thermal analysis of the heat generated during ultrasonic metal welding. The experimental results indicated that the temperature of the weld tends to increase with the welding time and vibration amplitude. However, an increase in the pressure does not affect the temperature of the weld largely.
Keywords
Ultrasonic metal welding; Finite element analysis; Transient thermal analysis; Frictional heat flux; Heat affected zone; Temperature distribution;
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Times Cited By KSCI : 2  (Citation Analysis)
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