METHOD AND APPARATUS FOR MAKING BRAKE DRUM

摘要

The invention is a method of manufacturing a composite brake drum (10) for a motor vehicle or the like which is comprised of a cast metal, preferably gray iron, drum section (14) and a stamped metal, preferably steel, drum back and annular band (12) surrounding the casting (14). The steel drum back (12) is positioned in a mold apparatus (40) and molten iron is introduced into a mold cavity (46) defined thereby. The mold (40) and band (12) are maintained in a static condition during the casting process.