Optimum blanking clearance choice method by an approach coupling experimental trials and simulations

Abstract Blanking process of sheet metal is accomplished by a shearing action on thin plate placed between two sharp cutting edges, known as “punch” and “die”. The main problem this technology, that causes major shutdowns the press machine, punch wear. Among all blanking parameters, clearance set die has influence tool In context, our study focuses identifying optimum guarantees maximum abrasion chipping wear reduction for different materials operations. developed approach combines experimental tests numerical simulation processes. Based assumptions made in paper, links are established stripping force abrasive behaviour punching tools also pressure face risk chipping. Using these links, criteria have been allowing to propose an configurations tested paper. A next step consists applying punch-die clearances variable way along complex shape realizing compare results (tool life edge quality) with constant clearance.