Lightweight part, as well as a process and device for its production

摘要: A lightweight part and process device of making the same, including an inner core a metal foam. dense surface layer is metallically joined to core. An outer wall includes essentially pore-free cast that at least one positively engaged with surrounding core, The creating by forming layer, foam, joining together layer. further finished positioning in casting mold, feeding melt material into allowing solidify so as form wall. This abstract neither intended define invention disclosed this specification nor limit scope any way.