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Authors - Randy Dull
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Articles written by Randy Dull


Randy Dull

Director of Engineering and Arc Welding
Edison Welding Institute

1250 Arthur E. Adams Drive
Columbus, OH 43221
phone: 614-688-5095

Results: 2

The blends that bind

Shielding gases do more than just protect the weld from atmospheric contamination. The gas and gas blends you use also influence the weld profile and the weld bead shape. Also, for an arc to occur in gas metal arc welding (GMAW), an ionized gas must be present to carry the charge.


Advantages of plasma welding: Often-overlooked PAW offers speed and affordability

Plasma arc welding sometimes offers greater welding speed than gas tungsten arc welding at lower cost than laser beam welding.