DOOR FRAME FROM VEHICLE AND MANUFACTURING METHOD OF THE SAME

摘要

Disclosed is a door frame for a vehicle. The disclosed door frame for a vehicle may include: a door inner frame in which a part of the front thereof is made of a tailored welded blank material (TWB) and a part and a remaining part of the front thereof welded; a reinforcing member which is bent corresponding to the shape of the upper frame of the inner frame and welded to the upper frame; and a door belt-frame assembly which is formed by welding a door belt made of a tailored welded blank material (TWB) and an outer frame corresponding to the shape of the upper frame and welded to the upper frame of the inner frame.