Finite element simulation was conducted to systematically study the wall thick-ness variation,cross-section distortion and springback during press bending of 6005A alumi-num alloy hollow profiles.The influence of profile wall thickness,die roller diameter,roller spacing,and profile aspect ratio on the bending quality was quantitatively studied.The cen-tral composite method was used for experimental design,and the influence degree of various process parameters on the springback of profile bending was obtained through sensitivity anal-ysis.The results show that among the selected process parameters,the wall thickness of pro-file has the greatest impact on the maximum thinning rate,minimum thinning rate,and cross-section distortion during bending.The aspect ratio of profile has the greatest impact on the springback.The quantitative relationship between each variable and each forming per-formance was established using second-order response surface methodology.The research re-sults can provide certain guiding significance for controlling the forming quality of hollow alu-minum profile in bending.
维普
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