Abstract
A6061 aluminum alloy was joined using the friction welding process to clarify mechanical properties related with welding parameters. Taguchi method was applied to find the major factors for friction welding. Parameters are selected rotational speed, friction upset distance, friction pressure, upset pressure and upset time for this purpose. Furthermore, it is carried out to evaluate microstructure of friction welded joints and hardness distribution. Following results were obtained; (1) rotational speed and friction upset distance are significant influence on mechanical properties from the analyzed results of Taguchi method. (2) the joint strength reaches to 87% of tensile strength of base metal under the optimum friction welding condition. (3) higher heat input rate is resulted in higher tensile strength.
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