Abstract: With the increasingly widespread application of hot stamping technology in BIW,its application scope of use has a tendency to expand,how to make the hot stamping technology better applied in vehicles has become the research dire-ction of various manufacturers. The realization of new production processes for various hot stamping materials,such as patchwork technology,that have emerged in recent years has given engineers more options to develop BIW.

Key words: hot stamping, vehicle, patchwork, development