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Welding small thicknesses with no buckling risk

LSND welding tests with heat sources to reduce defects
07/07/2010

A study on the LSND (Low Stress No Distortion) welding process, which aims to limit the defects due to buckling on small thicknesses

​Traditional fusion welding offers numerous advantages as a joining process, notably economic, for example, for large structures for aeronautical and naval industries. In order to minimize the bulk of their products, these sectors choose to use plates, panels or shells of great length and of a thickness often less than 4 millimetres. Nevertheless, these configurations lead generally to unacceptable residual deformation (buckling), liable to later pose problems of geometric tolerance and to reduce the overall rigidity of the structures.

 

In order to provide a response to industrial concerns, Institut de Soudure launched a study on the LSND (Low Stress No Distortion) welding process, which aims to limit, even to eliminate, these defects due to buckling on small thicknesses.

 

 

 

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