X-ray Radiography Inspection of Pores of Thin Aluminum Foam during Press Forming Immediately after Foaming

Forming aluminum foam to the desired shape while retaining its pore structures is essential for manufacturing products. Recently, a press forming process that performed after precursor foaming but before solidification has been proposed. In this study, track individual pores throughout immediately foaming, X-ray radiography inspection was applied. A thin used, and constrained transmission direction. It shown that, although some coalesced with other pores, did not collapse during forming. addition, porosity of evaluated from images constant Some retained their position changed by material flow generated These results show foam, can be shaped without pores.