Showing papers by "Taylan Altan published in 2017"

Impact of Servo Press Motion on Hole Flanging of High Strength Steels

Abstract: The capabilities of the servo press for varying the ram speed during stroke and for adjusting the stroke length are well known. Also during the blanking operation, the servo can help to slow down the press at the critical moment of blanking without losing overall productivity. Various publications, especially from Japan (Junlapen et al. 2010; Osakada et al. 2011), claim that servo press blanking has the potential to improve the quality of the blanked edge and to reduce noise. However, most of these studies have been conducted on small capacity (50-150 ton) presses. Furthermore, the inertia of the press ram and drive has not been considered when discussing the small variations in the press speed used in conducting stamping or blanking operations.