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Process-integrated quality monitoring and control in closed die forging

Autoren:Schneider, H.; Rüsch, S.
Kategorie:Zeitschriften/Aufsätze (reviewed)
Jahr:2001
Veröffentlichung:International Journal of Manufacturing Technology and Management (IJMTM), Vol. I, No.1, 2001

Abstract

Because of the high temperatures of closed die forged parts during and after deformation, a direct in-process acquisition of the workpiece quality is not possible. In order to improve the economic efficiency of the process by means of process-integrated methods for quality inspection, an indirect procedure for workpiece inspection has to be used. For an exemplary forging process, such a monitoring system has been realised. It allows a quick evaluation of the product quality directly after the forging cycle. Additionally, a trend-detection and automatic control are integrated into this system. These modules are supposed to keep the workpiece quality constant within the tolerance limits even for trend-like process variations.