To get reliable forming process parameters for aluminum products, the inner panel of an automotive aluminum door is taken as the research object. Considering the structural characteristics of this product, the process modeling and analysis are initially performed using the AutoForm software to identify the risk areas of its forming defects. Subsequently, the blank size, binder force, and the resistance coefficient of the drawbead are adopted as the design variables for process optimization. The process optimization analysis is implemented through the Sigma module. After a cumulative total of 114 iterative operations, the optimal parameter combination that complies with the forming quality evaluation criteria is obtained. Production verification shows that the formed quality of the stamped parts is excellent according to the optimal parameter combination.

Aluminum door  /  Stamping process  /  Sigma  /  Cracking  /  Wrinkling