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INVESTIGATION ON EFFECT OF HEAT INPUT IN SAW WELDING FOR PRESSURE VESSEL

Author(s):

MANISH VINUBHAI ROHIT , SARADAR VALLABHBHAI PATEL INSTITUTE OF TECHNOLOGY,VASAD,GUJARAT

Keywords:

Design expert tool, hardness of weld metal and HAZ, x-ray, Submerged arc welding .

Abstract

Submerged arc welding (SAW) is a high quality, high deposition rate welding process commonly used to join plates of higher thickness in load bearing components. This process provide a purer and cleaner high volume weldment that has a relatively a higher material deposition rate compared to the traditional welding methods. The effect of controllable process variables on the heat input and the hardness of weld metal and heat affected zone (HAZ) for bead on joint welding were calculated and analyzed using design of experiment software and Taguchi method technique developed for the SAW of boiler and pressure vessel plates. The main purpose of present work is to investigate and correlated the relationship between various parameters and hardness and tensile strength of single sqear butt joint and predicting weld bead qualities before applying to the actual joining of metal by welding. It is found that the hardness of weld metal and heat affected zone decreased when that is total heat input increased.

Other Details

Paper ID: IJSRDV2I5030
Published in: Volume : 2, Issue : 5
Publication Date: 01/08/2014
Page(s): 76-80

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