Braking unit e.g. brake disk, manufacturing method for motor vehicle, involves molding braking unit with opening for passage of screw to tighten braking unit between wheel and hub, while assuring presence of flashes in opening zones

摘要

The method involves molding a braking unit with an opening for passage of screw intended to tighten the braking unit between a wheel and a hub of a motor vehicle, while assuring eventual presence of flashes in zones of opening. The opening has diameter greater than diameter of screw of the wheels. A recess is formed on the braking unit. Independent claims are also included for the following: (A) a casting model for molding a braking unit (B) a core intended to cooperate with the casting model (C) a mold for manufacturing a shell of the casting model (D) a mold for manufacturing core (E) a motor vehicle comprising a braking unit.