Residual stresses in cold-wire gas metal arc welding. (17th November 2017)

• Record Type: Journal Article
• Authors: Costa, E. S.; Assunção, P. D. C.; Dos Santos, Emanuel B. F.; Feio, L. G.; Bittencourt, M. S. Q.; Braga, E. M.
• Is Part Of: Science and technology of welding & joining. Volume 22:Number 8(2017)
• Page Start: 706
• Page End: 713
• Publication Date: 2017-11-17
• Subjects: Welding -- cold-wire GMAW -- residual stresses -- non-destructive testing -- X-ray diffraction -- acoustic birefringence; Welding -- Periodicals; Joints (Engineering) -- Periodicals; Surfaces (Technology) -- Periodicals; 671.52
• DOI: 10.1080/13621718.2017.1306014
• Languages: English
• ISSNs: 1743-2936

Abstract

ABSTRACT: This work compares the welding residual stresses of the cold-wire gas metal arc welding and conventional gas metal arc welding processes. Two techniques were used to measure the residual stresses: X-ray diffraction and acoustic birefringence. The base metal used was carbon manganese steel plates of 9.5- mm thickness. The results showed that the introduction of the cold-wire tends to decrease the residual stresses, suggesting that the introduction of the cold wire decreases the amount of heat given to the base metal, and consequently lowers residual stresses.