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Abstract

Abstract

Forming Limit Diagram ( FLD ) is considered as an important tool in the determination of the formability of metal sheets . There is a Forming Limit Curve ( FLC ) for each sheet metal shows its formability, limit strains and forming regions. It is required some times to butt welding of two or more sheets of different thicknesses to get one blank to be formed latter , such as in some parts of car body . In this work the effect of electric arc welding on the forming limit diagram, of carbon steel , was studied .It was noticed that welding affects the forming limit curve ,where the major and minor strains are lowered for the steel sheet.

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