![]() ![]() Raise the tension whilst feeding the wire into the palm of welding glove and keep raising the tension one half turn to pass wire slippage.īird-nesting also results from blockages in the liner, wrong liner used, or inappropriately trimmed liners. ![]() In order to set the correct tension, start with releasing tension on drive rolls. ![]() It can compress the wire if you use wrong drive roll.Īlso, setting the right drive roll tension can stave off the wire flattening and being tangled. Comparatively with GMAW solid welding wire that employs smooth V-groove drive roll, the FCAW wire is far softer because of tube-shaped design. To avoid bird-nesting - a wire tangle halting the wire from being fed - when FCAW welding, use knurled U or V-groove drive rolls in the wire feeder. Those types tend to prematurely extinguish the arc, inducing weld defects. Bird-nesting and burn-back are 2 most notorious types of wire feed welding problems. How to avoid wire feed welding problemsĬommon problems at workshops are wire feed malfunctions and stoppages caused by a significant number of downtime.Post Welding Operations to Ensure Productivity With some tips and practice, you can avert the problems and create qualified welds you need.ĭelve into 3 Leadership Techniques for Welding Quality Improvement Yet, there exist some challenges related to this process. Unsurprisingly, because it provides high deposition rates, fantastic mechanical and chemical properties and weldability needed for those jobs. When it comes to structural steel erection, bridge construction, heavy equipment repair, and other same applications, FCAW (Self-Shielded Flux Cored Arc Welding) has been, for many years, a feasible welding process. With some tips and practice, you can avoid flux core welding problems and improve your FCAW welds ![]()
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