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http://dx.doi.org/10.9726/kspse.2013.17.4.064

Thermal and mechanical analysis on friction stir welding of AZ31 magnesium alloy by the finite element method  

Kang, Dae-Min (Department of Mechanical Engineering, Pukyung National University)
Park, Kyoung-Do (Department of Mechanical Engineering, Pukyung National University)
Jung, Yung-Suk (Department of Mechanical & Automotive Engineering, Pukyung National University)
Publication Information
Journal of Power System Engineering / v.17, no.4, 2013 , pp. 64-71 More about this Journal
Abstract
In this paper, finite element method was used for flow and strength analysis of AZ31 magnesium alloy under friction stir welding. The simulations were carried out by SYSWELD s/w, and the modeling of sheet was doned by unigraphics NX3 s/w. Welding variables for analysis were rotating speed and welding speed of tool. Also two-way factorial design method was applied to confirm the effect of welding variables on maximum temperature and stress of material used. From these results, the increaser welding speed of tool the decreaser maximum temperature, but the increaser maximum stress. Also the increaser rotating speed of tool the increaser maximum temperature, but the decreaser maximum stress. In addition the increaser welding speed of tool and the decreaser rotating speed of tool, the narrower heat effect zone. Finally rotating speed of tool influenced on maximum temperature more than welding speed of tool, and welding speed of tool influenced on maximum stress more than rotating speed of tool from the variance analysis.
Keywords
Friction stir welding; Magnesium alloy; Design of experiment; Finite element method;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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