Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 02, 2019 - November 04, 2019
A porous aluminum (Al) has light weight and high energy absorption characteristics. However, the tensile strength and bending strength of porous Al is lower than those of dense Al materials. It is promised that a sandwich structure consisting of a porous Al core and dense metallic face sheets is effective to use as structural elements. In this study, sandwich structures of a functionally graded (FG) porous Al core of ADC12 and A6061 with two face sheets of A1050 were fabricated using friction stir welding (FSW) route. The fabricated sandwich structures of FG porous Al core were observed by X-ray computed tomography (CT). Through the observations of the pore structures and the thickness of ADC12 layer or A6061 layer in FG porous Al core, foaming conditions for sandwich structure of FG porous Al core were examined. It was found that sandwich structure with each layer of ADC12 and A6061 of good pore structures and almost same thickness was successfully fabricated by controlling holding time and thickness of ADC12 and A6061 precursors.
