Open AccessWeldability of micro-alloyed high-strength pipeline steels using a new friction welding variant
Author(s) -
Koen Faes,
Patrick De Baets,
Alfred Dhooge,
Wim De Waele,
Rudi Denys,
E. Van Der Donckt,
D Delbaere
Publication year - 2010
Publication title -
sustainable construction and design
Language(s) - English
Resource type - Journals
eISSN - 2295-9092
pISSN - 2032-7471
DOI - 10.21825/scad.v1i1.20401
Subject(s) - weldability , welding , materials science , metallurgy , friction welding , pipeline (software) , ductility (earth science) , toughness , plastic welding , heat affected zone , electric resistance welding , process (computing) , mechanical engineering , engineering , arc welding , computer science , filler metal , creep , operating system
An innovative welding method for fully automatic joining of pipelines has been developed. Theproposed welding procedure is a variant of the conventional friction welding process. A rotatingintermediate ring is used to generate heat necessary to realise the weld. The working principles of thewelding process are described. The weldability of the micro-alloyed high-strength pipeline steel API-5L X65is experimentally investigated. It was found that the new welding process is suitable for joining this material.When welding with a sufficiently low heat input, a high weld quality is obtained. Under these circumstancesthe weld strength, ductility and impact toughness are high and fulfil the requirements of the commonly usedstandard EN 12732 for joining pipes.