Influence of cutting parameters on mechanisms causing slug pulling

Abstract Shear cutting is one of the most widely used manufacturing processes in production sheet metal components. The reasons for this are high output volume combined with low costs per part. profitability process significantly influenced by lifetime active elements and occurrence unexpected disturbances. While there already many publications on former, only few examinations wide spread disturbance slug pulling, which describes phenomenon where cut-out part pulled upwards again during punch return stroke. In particular, different forces that cause have not yet been measured individually independently another single tool. Thus, a shear tool was developed enables measurement individual depending various parameters. Following, stroke experiments were carried out to determine these establish relationships between parameters, characteristics forces. Finally, interaction all partial selected parameters discussed order classify relevance every force regard pulling. This understanding necessary make well-founded decision when designing future tools or selecting available remedial measures avoid