Spatter Reduction of Steel Sheets Welding Using Controlled Bridge Transfer (CBT) GMA Process

Tetsuo Era; Akihiro Ide; Toshiro Uezono; Tomoyuki Ueyama

doi:10.4028/www.scientific.net/MSF.580-582.303

Paper Titles

Finite Element Analysis of Hybrid Rotary Friction Welding and Investigating the Effects of Pressure on Variations of Temperature and Strain Values
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Finite Element Modeling of Laser Spot Welded Lap Joint
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Efficient Diffusion Bonding between BSCCO Superconducting Multifilamentary Tapes
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Experimental Estimation of Strain Rate during FSW of Al-Alloy Using Plane-Strain Compression
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Spatter Reduction of Steel Sheets Welding Using Controlled Bridge Transfer (CBT) GMA Process
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Engineered Weld Design: Are Composite Welds Likely in the Future?
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Numerical Modeling of Welding Arc with Complex System between Arc Plasma and Molten Electrode
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Effect of Joint Configuration Design on the Butt Welding Characteristics of Double Wall PE Pipes
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Predictions of Current Attachment at Thermionic Cathode for TIG Arcs
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Spatter Reduction of Steel Sheets Welding Using Controlled Bridge Transfer (CBT) GMA Process

Abstract:

In non-pulsed GMA welding, spatter can be reduced by controlling the short-circuit current to a low level just before the re-arcing. The reduction of spatter requires improving the accuracy of predicting the re-arcing by stabilizing the molten metal transfer, and improving the consistency of accuracy against disturbances. The Controlled Bridge Transfer (CBT) process, which optimizes the accuracy of predicting the re-arcing in real time in response to the molten metal transfer, realizes stable, low spatter level GMA welding.