Control arm constituting vehicle's suspension system and method for manufacturing the control arm

摘要

The control arm of the hybrid type constituting the vehicle suspension according to the present invention includes a metal plate for maintaining basic rigidity; And a composite material made of plastic resin and glass fiber to cover the outer surface of the plate, wherein the plate includes a plate body and a ball joint welded on the plate body, and the control arm includes the ball in a mold. In the state where the plate to which the joint is coupled is inserted, the composite material is combined by injection molding in a state including a welding joint between the plate body and the ball joint, and pores formed through surface treatment between the plate and the bonding surface of the composite material It is characterized by an increase in the bonding force.