On the forming and fracture limits of sheet metals

Antti S. Korhonen¹, Timo Manninen², Jeong-Whan Yoon³

¹Department of Materials Science and Engineering, Helsinki University of Technology. ²Outokumpu Stainless Oyj, Tornio Research Center. ³Alcoa Technical Center, Division of Materials Science.

DOI:

https://doi.org/10.7494/cmms.2009.1.0220

Abstract:

The forming and fracture limits of stainless steel and aluminum were studied. Hydraulic bulge testing was employed in the stretch forming experiments. Marciniak-type in-plane tests and tensile testing were carried out to study the limit strains in the deep drawing region. Both screen-printed and laser-marked grids were used to measure the surface strains. Scanning electron microscopy was employed to measure the thickness strains and to study the fracture surfaces.

Cite as:

Korhonen, A., Manninen, T., Yoon, J., (2009). On the forming and fracture limits of sheet metals. Computer Methods in Materials Science, 9(1), 143 – 147. https://doi.org/10.7494/cmms.2009.1.0220

Article (PDF):