The Effects of Tooling Imperfections on The Initiation of Wrinkling in Finite Element Modeling of A Deep Drawing Process  

Oleh:

Hematian, J. ; Wild, P. M.

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Engineering Materials and Technology vol. 123 no. 4 (2001), page 442-446.
Topik: TOOL ENGINE; tooling imperfections; initiation; finite element; deep drawing process

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ87.2 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

A brief review of the literature on wrinkling in deep drawing processes is presented. It is noted that, while there is a large body of literature related to thin sheet, only one study related to thick sheet or plate has been identified. Finite element based models are used to investigate the effect of initial tooling imperfections on the initiation of wrinkling in deep drawing of thick sheet. Two sorts of tooling imperfections, punch displacement and blank tilting, are considered. The simulation results are compared qualitatively to the experimental forming operation. It is confirmed that tooling imperfections, in particular blank tilting, are an important type of imperfection governing the wrinkling behaviour of the blank in deep drawing process.

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