Experimental investigation and prediction of the maximum edge longitudinal membrane strain and springback of Chain-die-formed AHSS U-channels using response surface methodology

Chain-die forming is a promising manufacturing technology that is emerging as an alternative to roll forming and stamping in fabricating advanced high-strength steel (AHSS) products. The maximum edge longitudinal membrane strain (MELMS) and the springback are regarded as the crucial indicators for evaluating the quality of fabricated AHSS products. As Chain-die forming is a newly developed sheet metal fabricating method, the evaluations and...