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Abstract：
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Taking the rear door outer panel of a frameless automobile as research object, using the orthogonal experiment scheme, taking the maximum thickening rate and the maximum thinning rate during drawing deformation as the research indicators and the four process parameters of forming force, blank holder force, friction coefficient and clearance between punch and die during drawing as the experimental factors, the simulation was carried out by CAE software AutoForm according to five levels, and the forming quality of each group of experimental results was investigated. Then, the results were analyzed by range, and the optimal combination of process parameters was obtained. Finally, based on the simulation results of the optimal combination and combined with on-site experience, the product improvement opinions were fed back to the Original Equipment Manufacturer (OEM). Through analysis and improvement, a drawing processing was conducted by a press with the nominal pressure of 800 t, the blank holder force of 1400 kN, the clearance between punch and die of 0.77 mm and the friction coefficient of 0.15 to obtain the rear door outer panel without cracks and wrinkles as well as the surface quality of smooth and uniform, which met the process requirements and significantly shortened the design cycle and cost.
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Funds：
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AuthorIntro：
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作者简介：吴光辉（1979-），男，工程硕士，副教授，E-mail：16795495@qq.com
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Reference：
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