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Non-linear and explicit finite element analysis in dynamic responses of handling sheet-metal parts

Abstract Sheet metals are used extensively in automotive, aerospace, aircraft, appliance, and furniture industries. Automating material handling of these flexible sheet-metal parts in the stamping process requires attention due to its significant impact on product quality and productivity. The compliance of large sheet-metal blanks can cause their permanent deformation during handling. In addition, the fluctuated deformation on the sheet-metal edges during handling might be a safety issue, such as interfering with the operator or other equipment. This paper presents the use of the non-linear and explicit finite element (FE) technique to formulate a fully flexible dynamic sheet-metal handling model incorporating the motion condition. The influence of the holding end-effecter layout scheme and movability conditions on the final part quality is investigated.