Authors : Mohamed Tahar Hannachi , Hamid Djebaili and Mazouz
Abstract: In this study, we have tried to describe the flattening test tubes welded HF induction and its experimental application. The test is carried out at the ENTTPP Tebessa (National transformations tubes and flat products). Usually the final products (tubes) undergo a series of Non-Destructive inspection (NDA) online and offline welding and obviously destructive mechanical testing (CD) (traction, hardness, impact strength, bending, flattening, flaring, etc.) and metal (chemical analysis of the material, macro and microfilming, etc.). The quality and reliability of any final product is highly recommended by customers on the one hand, as well as continuing competition in the market and technology design of a second, not to mention the mechanical and metallurgical properties of the material used as a parameter that governs the weldability of the tubes. For this and for the purpose of implementing the flattening test, which applies to the processing of round tubes in other forms, it took four sections of welded tubes draft (before stretching hot) and welded tubes finished (after drawing hot and annealing), it was also noted the report `health` flattened tubes must not show or crack or tear. The test is considered poor if it reveals a lack of ductility of the metal.
Mohamed Tahar Hannachi , Hamid Djebaili and Mazouz , 2007. Application of Control by Flattening the Welded Tubes by HF Induction. Journal of Engineering and Applied Sciences, 2: 1748-1755.