METHOD FOR FORMING VEHICLE BODY MEMBER

The invention relates to a method for forming a vehicle body member which may include a tube making process of forming a steel pipe by welding a steel plate coil; a non-circular tube making process ofprimary preforming the steel pipe formed in the tube making process so as to have a cross section of a predetermined shape; a bending process of bending and secondarily preforming the steel pipe preformed firstly in the non-circular tube making process; and a hot stamping process of heating the secondarily preformed steel pipe, inserting the heated steel pipe into a mold to form a desired shape,and then, quenching the heated steel pipe to form a vehicle body member, thereby easily forming a vehicle body member having high rigidity. 本发明涉及用于形成车身构件的方法。用于车身构件的形成方法可以包括：通过焊接钢板卷料来形成钢管的管制造步骤；非圆形管制造步骤，其初步预成形在管制造步骤中形成的钢管，以具有预定形状的截面；对在非圆形管制造步骤中初步预成形的钢管进行弯曲和二次预成形的弯曲步骤；加热二次预成形的钢管，并将加热后的钢管插入至模具中形成所需形状，接着对加热后的钢管进行淬火以形成车身构件的热冲压步骤；从而容易地形成具有高刚度的车身构件。