APPLICATION TECHNOLOGY OF ALUMINUM BLOW FORMING FOR AUTOMOTIVE CLOSURE PANEL

K. Saito (1) , J. Watanabe (1) , O. Yokoyama (1) , K. Nakao (1)

1 Honda Engineering Co.

Replacement by aluminum for the closure panels is one of the common methods for lightening car body. However the application used to be limited into shallow drawing parts like hood because of its low stamping formability. As a solution to cover the low stamping formability of aluminum, Blow forming technology of aluminum which is one of the superplastic forming technologies has been researched in Honda for closure panel application. High cycle blow forming technology has been realized for shortening the forming time, which used to be a problem for mass production and the mass production line could be build. This technology has been used for the fender and trunk of 05M LEGEND(05M ACURA RL), which is luxury sports sedan of Honda, and achieved enlightenment with high design performance. In this report, high cycle blow forming technology which is comprised of die technology, forming technology and material technology will be introduced.

Mots clés: Automotive closure panel; Aluminum blow forming; High cycle blow forming

Domaines: Matériaux; Mécanique [physics.med-ph]

K. Saito, J. Watanabe, O. Yokoyama, K. Nakao. APPLICATION TECHNOLOGY OF ALUMINUM BLOW FORMING FOR AUTOMOTIVE CLOSURE PANEL. EuroSPF 2008, Sep 2008, Carcassonne, France. ⟨hal-00349245⟩