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The study on the drop detachment for automatic pipeline GMAW system: short-circuit mode

  • Alireza Doodman TipiEmail author
ORIGINAL ARTICLE

Abstract

In the automatic pipeline welding systems, the welding properties are varied regarding to the robot angle variations around the pipe. In this paper, a modified dynamic model—presented for the free-flight mode [1]—is extended to include the short-circuit mode. Consequently, a complete dynamic model is introduced including some modifications in characteristics equations. Some events and phenomena, like frequency jumping and combined transfer mode—caused by angle variations—are illustrated using time-frequency representation through the simulation and experimental examples.

Keywords

Gas metal arc welding Short-circuit mode Drop detachment Characteristic equations Dynamical behavior Time-frequency analysis 

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Copyright information

© Springer-Verlag London Limited 2010

Authors and Affiliations

  1. 1.Kermanshah University of TechnologyKermanshahIran

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