Experimental Investigation and Optimization of AZ31 Mg alloy during Warm Incremental Sheet Forming to Study Fracture and Forming Behaviour

The main purpose of this research work is to study the forming limit and fracture behaviour AZ31 magnesium alloy, as well improve formability surface roughness parts formed using warm incremental sheet (ISF) process. For ISF process, Mg alloy sheets were used. Initially, Taguchi orthogonal L27 arrays used design experiments, a framed multi-objective optimization problem was solved grey-fuzzy method. strain-based diagrams (FFLD) plotted after variable wall angle test. reasoning grade (GFRG) calculated in by combining grey relational analysis (GRA) fuzzy rationale. maximum GFRG value obtained for following combinations: step depth 0.3 mm, feed rate 500 mm/min, spindle speed 700 rpm, tool diameter 10 mm. Then, ANOVA determine importance parameters on responses, it discovered that has greatest influence (68.78%) value, followed (16.56%). studied fractographs. Later, FE simulation validate strain from experimentation investigate effect process responses.