1. In the manufacture of automotive-body panels from carbon-steel sheet, stretcher strains (Lueders bands) are observed,
Posted: Mon May 16, 2022 1:44 pm
1. In the manufacture of automotive-body panels from carbon-steel sheet, stretcher strains (Lueders bands) are observed, which detrimentally affect surface finish. How can stretcher strains be eliminated? Explain with appropriate sketches. Also discuss how wrinkles in a deep drawing operation can be eliminated.