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User Manual 160 DualArc ENG
FLOW160DA025
Starting:
Initiating the arc may be challenging, especially to the novice welder. It is recommended that users practice and familiarize themselves with the machine by welding some scrap metals before starting a job. An arc can
be initiated by either scratching or tapping the electrode onto the weld metals. After the arc is started, it is important to swiftly leave a slight gap, or the electrode will weld itself onto the metal. However, the gap must
not be too large; otherwise the arc will die down. (See drawing next page).
Weld Angle: To ensure a proper weld, a correct weld angle must be maintained during the welding process. The electrode must form a 70° to 80° angle with the surface being welded.
Arc Length:
Arc length is the distance from the work piece to the tip of the electrode and it is constantly being adjusted as the electrode is used up during welding. A proper arc length is essential to generate the heat needed for
welding. Too long an arc results excessive spatter, poor penetration and a flat weld bead. Too short an arc does not create enough heat to melt the metals, and the electrode has a tendency to stick, penetration is poor,
and uneven beads with irregular ripples result. A proper arc should be no longer than the diameter of the rod. The sound of a proper arc is a steady, crisp sizzle.
