Rootarc; Forcearc - EWM Taurus 301 Synergic Operating Instructions Manual

5.8.10 rootArc

The rootArc process is welding with a stable, soft, short arc, even when using welding leads.
The benefits of rootArc welding:
• Easy, reliable root welding without pool support.
• Effortless gap bridging.
You can make use of these properties after selecting the rootArc process (see the "Selecting a MIG/MAG
welding task" chapter).

5.8.11 forceArc

The forceArc process is welding in the spray arc range with a considerably shortened arc.
Disadvantages of short-circuit phases are compensated by the fast control inverter technology.
Benefits of forceArc welding:
• Good fusion penetration
• Directionally stable arc
• No undercuts
• Higher welding speed
• Small heat-affected zone
You can make use of these properties after selecting the forceArc process (see the "Selecting a
MIG/MAG welding task" chapter).
As with pulse arc welding, it is important to make sure of a good welding current connection.
• Keep welding current cables as short as possible and ensure that cable cross-sections are adequate!
• Fully unroll welding current cables, torche tube packages and, if applicable, intermediate tube
packages. Avoid loops!
• Use welding torches, preferably water-cooled, that are suitable for the higher power range.
• Use welding wire with adequate copper coating when welding steel. The wire spool should have layer
spooling.
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09.06.2011
Design and function
MIG/MAG welding
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