An Analysis of Spring-back and Spring-go on Variation of V-Dies Bending Angle Using Galvanized SGCC Steel Sheet: Analisis Spring-back dan Spring-go pada Variasi Sudut V-Dies Bending Menggunakan Material Baja Lembaran SGCC Galvanized. JTMMX. 2022;3(1):17-25. doi:10.36805/jtmmx.v3i1.2753