Method of forming header extension, and vehicle structure

Abstract

A method of forming a header extension coupling a front header and a roof side inner includes: electrically heating a part of a material to a temperature of not less than a hardening temperature such that a front header side is heated to the temperature of not less than the hardening temperature and a roof side inner side is heated to a temperature of less than the hardening temperature; and press-forming the material after the electrical heating into the shape of the header extension; and hardening the material by quenching. In this way, a vehicle structure can be provided such that the bending mode under application of a load to the roof can be appropriately controlled, and productivity can be improved.

Dependencies are inferred from the claim text.