COLD FORMING RESIDUAL STRESSES AND THEIR EFFECT ON THE ACCURACY OF POST-FORMING OPERATION-2

The following are the main conclusions drawn up from the theoretical and experimental results. The magnitude and distribution of residual stresses depend upon the section characteristics, shape of stress-strain diagram and the radius of curvature. Cold forming residual stresses, at the extreme fiber and near the neutral axis, may reach values as high as the yield stress of the material. For partially symmetrical sections, i.e. T sections, the tip residual stresses depend on the ratio of flange area to web area; the higher this ratio is, the higher the tip residual stresses will be. The effect of welding, gas cutting, punching etc, on the shape of a cold formed member should be taken into account during the forming stage, as these operations have remarkable influence on the final shape of the member.

• Corporate Authors:

  Scandinavian Ship Technical Society

  Radhusgt 8, Box 162
  Oslo,   Norway 
• Authors:
  • Shama, M A
• Publication Date: 1970

Media Info

• Pagination: p. 34-40
• Serial:
  • European Shipbuilding
  • Volume: 19
  • Issue Number: 3
  • Publisher: Scandinavian Ship Technical Society

Subject/Index Terms

• TRT Terms: Cold working; Forming; Metal working; Residual stress
• Old TRIS Terms: Forming techniques; Residual stresses
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00019407
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Nov 19 1972 12:00AM