Folding pre-shaped blanks
David Evans, Julian M. Allwood
Abstract. Deep drawing creates top-hat-shaped components. Some geometries are difficult to form using deep drawing but can be achieved by folding a top hat into another shape. Previous literature has explained the rules governing the folding of sheets but has not applied these rules to the folding of square top-hat-shaped components. This paper derives the equations governing the geometry of a quarter-top-hat and categorises the family of shapes which can be folded from it by changing the orientation of its creases. Any geometry within this family can be described by a point in a three-dimensional configuration space; this paper identifies the feasible region within this space and shows visually how the geometry of the quarter-top-hat changes as it is folded along three distinct trajectories in the feasible region.
Keywords
Deep Drawing, Folding, Geometry
Published online 4/1/2025, 8 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: David Evans, Julian M. Allwood, Folding pre-shaped blanks, Materials Research Proceedings, Vol. 52, pp 2-9, 2025
DOI: https://doi.org/10.21741/9781644903551-1
The article was published as article 1 of the book Sheet Metal 2025
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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