Developments in deep-drawing process control review

Résumé

This paper presents a review of the developments in deep-drawing process control. Different solutions and their impact are presented. This review is structured considering three important elements of the control: i) deep-drawing control strategies; ii) adjustable deep-drawing process components and iii) process variables. The considered criteria to select the optimal process control take account on these quality considerations: i) formability (no defects like wrinkling due to excessive compression or fracture because of high local tensile stress); ii) dimensional accuracy (e.g. springback caused by elastic recovery); iii) consistency, that represent, minimizing dimensional variations due to the variation of different parameters. The evolution of these elements are presented and discussed.