LIGHTWEIGHT PART, AS WELL AS A PROCESS AND DEVICE FOR ITS PRODUCTION

摘要

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