Reliability-based robust optimization design for rubber fluid cell forming process

The inherent variations that exist in aluminum alloy sheet properties, process parameters and other random factors effect forming quality of rubber fluid cell forming process. Oriented to precision manufacturing of aircraft, a reliability-based robust optimization design approach for rubber fluid cell forming process based on robust optimization design and reasonable reliability constraints was proposed. The reliability-based robust optimization design solution with the traditional optimization design solution was compared, and the typical flanging parts of 2B06-O aluminum alloy sheet in rubber fluid cell forming were used to verify the practicability and validity. The results show that the proposed approach made quality performance indicators less sensitive to uncertainties, and improved the robustness and reliability of the rubber forming process.