An Analytical and Experimental Study of the Flow of Sheet Metal Between Circular Drawbeads

[+] Author and Article Information
L. R. Sanchez

University of Colorado, Denver, CO

K. J. Weinmann

Michigan Technological University, Houghton, MI

J. Eng. Ind 118(1), 45-54 (Feb 01, 1996) (10 pages) doi:10.1115/1.2803647 History: Received February 01, 1993; Revised November 01, 1994; Online January 17, 2008


This paper describes an analytical model for determining the pulling and shear forces and bending moment required to form sheet metal subject to plane strain along its width. The model is based on simplifying assumptions widely accepted in the analysis of wide thin sheet: planes remain plane and normal to the mid-surface, and plane stress state across the thickness. During deformation, any bending, unbending and reverse bending of the strip is analyzed and the constitutive law for this cyclic process is discussed. The model consists of an iterative procedure which is ended when the equation of equilibrium and all boundary conditions are satisfied. The output of the model gives the geometry of the deformed shape, the forces and moments applied along the strip, the displacement field, thickness variations, and stress and strain history fields. The model can be applied to an arbitrary die geometry, and it is used here to analyze the specific case of sheet flow through a drawbead gap consisting of circular drawbeads. The calculated resultant forces, the theoretical surface strains and thickness reductions agree reasonably well with the experimental results.

Copyright © 1996 by The American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In