Investigation of Single-stage and Two-stage Forming Limit Curve of Aluminum 6061 with Different Temperatures and Strain Rates

The Form Limit Curve (FLC) is an important and helpful concept for defining sheet metal ductility. ductility of aluminum 6061 alloy was analyzed in this work. current study examined how to enhance the formation curve 6061, which frequently utilized automotive industry. These curves were plotted compared at various temperatures strain levels. Using finite element approach, produced under impact rates. forming limit accomplished two-stage when pre-stress formed sheet, predicted different using one-stage behavior pattern. It determined that increasing temperature led rise fall, but rate caused fall contract. also revealed by curvature single-stage a one temperature, it feasible estimate FLC two temperatures.