A STUDY ON PARAMETER OPTIMIZATION FOR CIRCUMFERENTIAL GAS TUNGSTEN ARE (GTA) WELDING OF SMALL PIPES CONSIDERING BACKING GAS-PRESSURE .2. PROCESS OPTIMIZATION

Authors
NA SJ LHO TJ
Citation
Sj. Na et Tj. Lho, A STUDY ON PARAMETER OPTIMIZATION FOR CIRCUMFERENTIAL GAS TUNGSTEN ARE (GTA) WELDING OF SMALL PIPES CONSIDERING BACKING GAS-PRESSURE .2. PROCESS OPTIMIZATION, Proceedings of the Institution of Mechanical Engineers. Part B, Journal of engineering manufacture, 210(1), 1996, pp. 87-91
Citations number
9
Categorie Soggetti
Engineering, Manufacturing","Engineering, Mechanical
Journal title
Proceedings of the Institution of Mechanical Engineers. Part B, Journal of engineering manufacture → ACNP
ISSN journal
09544054
Volume
210
Issue
1
Year of publication
1996
Pages
87 - 91
Database
ISI
SICI code
0954-4054(1996)210:1<87:ASOPOF>2.0.ZU;2-Z
Abstract
Extensive use of circumferential gas tungsten are (GTA) welding in ind ustrial applications has been handicapped due to the difficulty of cho osing the optimal process parameters. In Part 2 of this study, the wel ding current and backing gas pressure are optimized by calculating the three-dimensional transient temperature distribution and the surface profile of the resultant weld pool in circumferential GTA welding of s mall-diameter pipes, in order to obtain a uniform weld bead without an y hang-down over the entire circumference of pipes.