What is cleaning action welding?

A process by which electrons remove an oxide film from the weld pool surface. The process only occurs with direct current electrode positive and the DCEP portion of alternating current.

Why DCEP has a cleaning action?

DCEP mode also results in a cathodic cleaning action on the workpiece as a result of the large positive ions that strike the surface, removing the oxide layer present there. Thus, AC can combine the cathodic cleaning action of electrode positive with the deep penetration characteristic of electrode negative.

What does Syncrowave mean?

Syncrowave technology gives you the ability to set balance control on range from 0 to 10, or maximum cleaning to maximum penetration, respectively. Syncrowave technology allows fine tuning the duration of the EN portion of the AC cycle from 45 to 68 percent.

What is ARC cleaning?

Dirt, oxides, coating, foreign loose particles, oil or grease, etc. Welding polarity inherently helps to rupture such oxide layer present on the base metal surface; and such action is called oxide cleaning by arc. It is also called arc cleaning or ionic cleaning. Suitable polarity can improve arc cleaning action.

What happens if there is too much cleaning action on a weld?

Insufficient cleaning action results in a “scummy” weld puddle. If the puddle looks like it has black pepper flakes floating on it, add more cleaning action to “blast” away oxides and other impurities. Too much cleaning action can lead the tungsten tip to ball and reduce penetration.

How does oxide cleaning occur in arc welding?

Fortunately, oxide cleaning occurs inherently while arc welding by specific polarity. In arc welding, electrode is given one polarity, while base plates are given other polarity. Electrons flow from negative polarity to positive polarity in the external circuit due to the application of sufficient potential difference.

How does an AC balance control work on a welder?

AC Balance Control adjusts the balance between penetration (EN) and cleaning action (EP). Inverter-based TIG welders allow the operator to set the amount of EN from 30 to 99 percent for greater control and fine-tuning of the cleaning action. Too much cleaning action can lead to the tungsten tip balling.

How long does it take to burn welding gas?

Welding Gas. 1 #1 acetylene, oxygen 1 hour. 2 #2 acetylene, oxygen. 3 1.5 hours. 4 #3 acetylene, oxygen 2 hours. 5 #4 acetylene, oxygen. Welding Gas Cylinder Capacity. Tractor Supply Co. carries welding gas in a variety of types and cylinder sizes.