METHOD OF MAKING CAST DISCS OF MOTOR VEHICLE WHEELS Russian patent published in 1998 - IPC

FIELD: plastic metal working, namely processes for making cast discs of motor vehicle wheels. SUBSTANCE: method comprises steps of making cast blank and then working wheel rim by cold or semi-hot rolling around. Blank is placed in roller die and torque is imparted to it at applying radial effort to rollers. Such method provides casting without gaseous and shrinkage porosity, air holes, allows to reduce its structure, to enhance mechanical properties of casting and to eliminate necessity of further working. When peripheral portion of blank is rolled around by rollers eccentricity and out-of-roundness of blank caused by irregularities of casting mold are eliminated due to tangential transfer of metal and straightening. It significantly simplifies balancing of assembled wheel. EFFECT: enhanced efficiency, high quality of wheel. 1 dwg