|HANNACHI Mohamed Tahar||University of Tebessa|
|Spoluautoři DJEBAILI Hamid|
The longitudinal welding of pipes by high frequency induction is a technique used for manufacturing steel closed. This process complies fully with the industrial requirements by highlighting the qualities of welded products. The welded tube passes through a series of tests known as destructive testing (CD). Our approach is to describe three types of destructive testing (bending, flattening and widening), and analyze experimental results and calculated.