Transactions of Materials and Heat Treatment

Title：Process design method of sharp ridge line for front door outer panels

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ClassificationCode：U270.6+4

year,vol(issue):pagenumber：2019,44(4):78-82

Abstract：

The side waistline is one of the most important exterior design languages for cars, and the sharp ridge line is more powerful and line-like. In order to create more automotive products with younger and sporty characteristics, for the left front door outer panel with main ridge line rounded corners of R1.5 mm, by the means of previous CAE simulation analysis, its appearance quality problems such as cracking and wrinkling, stiffness insufficient, slip, etc. were effectively controlled from the aspects such as the selection of punching direction, the shape of pressing surface, the design of process supplement and the adjustment of material inflow amount, etc. At the same time, the field test was guided by the CAE analysis parameters, and the qualified products with the overall quality and ridge line slip risk under control were debugged. It is proved that the process scheme adopted by this paper can realize to manufacture the front door outer panel with the R1.5 mm sharp ridge line, and has extremely important reference value for the process design and manufacture of the outer cover with sharp ridge lines.

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柴武倩（1989-），女，硕士，工程师 E-mail：chaiwuqian@gacrnd.com

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