Abstract
A dynamic mathematical model for welding arc was developed by adopting the method of equivalent current path according to the arc dynamic characteristics of DE-GMAW process and the rule of wire-melting. Based on that, simulations about non-consumable DE-GMAW and consumable DE-GMAW were carried out by MATLAB/Simulink. Then the influence of welding torches angle on stability of DE-GMAW process was simulated and analyzed. The results show that the developed mathematical model can reflect the DE-GMAW process well. When the angel between main and bypass torch is 45°, the response time for welding process to achieve stability is the shortest and is consistent with the actual welding process and the non-consumable DE-GMAW is much more stable than consumable DE-GMAW.
| Original language | English |
|---|---|
| Pages (from-to) | 63-67 |
| Number of pages | 5 |
| Journal | Hanjie Xuebao/Transactions of the China Welding Institution |
| Volume | 33 |
| Issue number | 6 |
| State | Published - Jun 2012 |
Keywords
- DE-GMAW
- Modelling
- Simulation
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering