TI - Taguchi based GRA-PCA hybrid optimization for the forming of AL6061 alloy in automotive applications AU - SWAPNA, D. AU - SRINIVASA RAO, C. AU - SAMEER KUMAR, D. AU - RADHIKA, S. SO - Sigma Journal of Engineering and Natural Sciences 2022;40:742-754. DO - 10.14744/sigma.2022.00090