TY  - JOUR
T1  - Application of Control by Flattening the Welded Tubes by HF Induction
AU - , Mohamed Tahar Hannachi AU - , Hamid Djebaili AU - , Mazouz 
JO  - Journal of Engineering and Applied Sciences
VL  - 2
IS  - 12
SP  - 1748
EP  - 1755
PY  - 2007
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2007.1748.1755
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2007.1748.1755
KW  - Flattening
KW  -destructive testing
KW  -tube drafts
KW  -finished tube
KW  -Castem 2001
AB  - 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.
ER  -