The Joints Characteristics of Al 5052 Aluminium Alloy in Friction Stir Welds

Title & Authors
The Joints Characteristics of Al 5052 Aluminium Alloy in Friction Stir Welds
Kang, Dae-Min; Jang, Jin-Suk; Park, Kyong-Do; Lee, Dai-Yeal;

Abstract
In this study, the tensile tests and hardness tests were carried out for the joints characteristics in friction stir welds of Al 5052 alloy. Three way factorial design was applied to optimal welding conditions, whose control factors were shoulder diameter, rotation speed and welding speed of tool. From the results of this study, the optimum condition for maximum yield strength was predicted as the shoulder diameter of 15 mm, welding speed of 500mm/min and rotating speed of 1000 rpm. And the presumed optimal yield strength was estimated to be $\small{167.36{\pm}7.82MPa}$ with 99% reliability. In addition the increaser rotation speed of tool and the decreaser welding speed, the decreaser the hardness at welding part.
Keywords
Friction stir welding;Three-way factorial design;Yield strength;Welding variables;Hardness;
Language
Korean
Cited by
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