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Effects of Various Process Parameters by Tensile and Toughness Test on Weld Joint Quality of HSLA Steel during Submerged Arc Welding

Authors(4):

Krishan Kant , Lalit Kumar, Kanika Verma, Deepak Rawat
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The aim of the present work was to study the effect of various process parameters i.e. current, voltage, travel speed, electrode diameter, flux composition, pre heating of workpiece, electrode stick-out and edge including angle on changes in tensile strength and toughness of the weld bead geometry of HSLA Steel and to optimize the process so that minimal changes occur in the material properties after completion of a submerged arc welding (SAW) process following suitable Taguchi experimental design. Tensile strength of the welded specimens were studied and found that Electrode Diameter, welding current and travel speed were the most significant factors leading to changes in tensile strength. The tensile strength tended to increase significantly with the increase in electrode diameter from 3.2-4 mm. whereas higher tensile strength was observed when welding current 450 Ampere and travel speed 15 m/hr was used. Toughness at room temperature of the welded specimen were studied and found that Electrode diameter, electrode stick-out, current, preheat temperature, voltage and were the most significant factors and higher toughness at room temperature was observed when electrode diameter should be 3.2 mm, electrode stick-out should be 28 mm, welding current should be 350 Ampere, preheat temperature. Toughness at room temperature of the welded specimens were studied and found that type of flux, welding current and electrode stick-out were the most significant factors and higher toughness was observed when welding current 450 Ampere and electrode stick-out should be 28 mm was used. Edge including angle and welding current were found to be the most significant factors leading to changes in toughness. So, it concludes that some compounds of flux goes into the weld region.

Krishan Kant , Lalit Kumar, Kanika Verma, Deepak Rawat

HSLA, SAW, Taguchi L18 Array, AC.

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Publication Details

Published in : Volume 2 | Issue 2 | March-April - 2016
Date of Publication Print ISSN Online ISSN
2016-04-30 2395-1990 2394-4099
Page(s) Manuscript Number   Publisher
652-659 IJSRSET1622216   Technoscience Academy

Cite This Article

Krishan Kant , Lalit Kumar, Kanika Verma, Deepak Rawat, "Effects of Various Process Parameters by Tensile and Toughness Test on Weld Joint Quality of HSLA Steel during Submerged Arc Welding ", International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 2, Issue 2, pp.652-659 , March-April-2016.
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