Forcearc / Forcearc Puls - EWM alpha Q Progress drive 4D EF Operating Instructions Manual

5.8.8

forceArc / forceArc puls

Heat-reduced, directionally stable and powerful arc with deep penetration for the upper power range.
•
Smaller included angle due to deep penetration and directionally stable arc
•
Excellent root and sidewall fusion
•
Secure welding also with very long stick-outs
•
Reduced undercuts
•
Un-, low- and high-alloyed steels as well as high-tensile fine-grained building steels
•
Manual and automated applications
forceArc welding from:
Material
Steel
CrNi
You can make use of these properties after selecting the forceArc process- See 5.8.5 Welding task
selection 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 hose packages and, if applicable, intermediate hose
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.
Unstable arc!
Welding current cables that are not fully unrolled can cause faults in the arc (flickering).
•
Fully unroll welding current cables, torch hose packages and, if applicable, intermediate hose
packages. Avoid loops!
099-005459-EW501
17.12.2015
0.8
Gas JOB
Ar 91–99% 190
Ar 80–90% 189
Ar 91–99% -
Figure 5-18
Wire Ø (mm)
1
JOB
17.0 254 12.0
17.0 179 12.0
- 251 12.0
Design and function
MIG/MAG welding
1.2
JOB JOB
255 9.5 256
180 9.5 181
252 12.0 253
1.6
7.0
6.0
6.0
49