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TECHNICAL PAPERS

Experimental Study and Modeling of GTA Welding Process

[+] Author and Article Information
Min Jou

Department of Industrial Education, National Taiwan Normal University, 162, Section 1, Ho-Ping East Road, Taipei City 106, Taiwane-mail: joum@cc.ntnu.edu.tw

J. Manuf. Sci. Eng 125(4), 801-808 (Nov 11, 2003) (8 pages) doi:10.1115/1.1537740 History: Received June 01, 2001; Revised August 01, 2002; Online November 11, 2003
Copyright © 2003 by ASME
Topics: Welding , Modeling , Geometry , Heat
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References

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Figures

Grahic Jump Location
Effect of welding speed on the surface width of weld pool (arc length=2 mm, workpiece thickness=6 mm)
Grahic Jump Location
Effect of welding speed on the depth of weld pool (arc length=2 mm, workpiece thickness=6 mm)
Grahic Jump Location
Effect of welding speed on the heat distribution parameter (arc length=2 mm, workpiece thickness=4 mm)
Grahic Jump Location
Effect of welding speed on arc efficiency (arc length=2 mm, workpiece thickness=4 mm)
Grahic Jump Location
Correlation among heat distribution parameter, current and arc length under 100 mm/min welding speed
Grahic Jump Location
Correlation among heat distribution parameter, current and arc length under 150 mm/min welding speed
Grahic Jump Location
Correlation among arc efficiency, current and arc length under 100 mm/min welding speed
Grahic Jump Location
Correlation among arc efficiency, current and arc length under 150 mm/min welding speed
Grahic Jump Location
Geometry of weld cross section
Grahic Jump Location
Effect of welding current and speed on GTA weld penetration (workpiece thickness=6 mm)
Grahic Jump Location
Effect of welding current on open-loop response (arc length=2 mm, workpiece thickness=6 mm)
Grahic Jump Location
Effect of welding speed on open-loop response (arc length=2 mm, workpiece thickness=6 mm)
Grahic Jump Location
Correlation of welding current, speed, and open-loop response (arc length=2 mm, workpiece thickness=6 mm)
Grahic Jump Location
Welding on varying workpiece thickness
Grahic Jump Location
Effect of arc length on GTA weld penetration under constant welding speed
Grahic Jump Location
Effect of arc length on GTA weld penetration under constant welding current
Grahic Jump Location
Effect of arc length on weld surface width under constant welding speed
Grahic Jump Location
Effect of arc length on weld surface width under constant welding speed
Grahic Jump Location
Gaussian distributed heat source
Grahic Jump Location
Temperature distributions at 9th second. (red areas stand for the weld pools) (E=12.2 V,I=90 A,η=0.50,r0=1.05 with speed 125, 150, 175 mm/min respectively)
Grahic Jump Location
Effect of welding speed on the surface width of weld pool (arc length=2 mm, workpiece thickness=4 mm)
Grahic Jump Location
Effect of welding speed on the depth of weld pool (arc length=2 mm, workpiece thickness=4 mm)

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