Manufacturing of aluminum flake powder from foil scrap by ...
The milling process of aluminum foil into the flake powder is shown systematically in Fig. 4, and the process is summarized as follows: (1) The foils is laminated, micro-forged by falling balls and elongated (Fig. 4b). (2) A crack occurs in the elongated foil and it is fragmented into small laminated pieces of foil or single piece of foil (Fig. 4c).