Arm and process for forging the same

摘要

An arm for a vehicle suspension has at least two connecting portions and a communicating portion. The at least two connecting portions are connectable to a vehicle suspension. The communicating portion communicates each of the at least two connecting portions and receives a bending force. The communicating portion has at least three beam portions that extend along a communicating direction of the communicating portion and do not exist in the same plane. Accordingly, it is possible to secure enough strength against a bending force, as well as, to forge an arm whose weight was reduced without impairing the required characteristics.