Thermal Arc Fabricator 140, Руководство по обслуживанию, Страница: 45 / 84

OPERATION FABRICATOR 140, 180
Janua r y 25, 2008 4-9 Manual 0-4992
4.12 Reference Tables
The following tables a r e p r ovided as use r aids when pe r fo r ming MIG o r FLUX CORED welding.
Type of Gas Typical Mixtures Primary Uses
Ca r bon Dioxide (CO2) Mild and low alloy steels
A r gon (A r ) - Ca r bon Dioxide (CO2) 75% A r – 25% CO2 Mild and low alloy steels, Stainless Steel
A r gon (A r ) Aluminum
Result Desired
Arc
Voltage
Welding Current
(wire speed)
Travel
Speed
Nozzle Angle Stick out Wire
size Gas
Type
Deepe r
Penet r ation
1
Inc r ease
3
T r ailing Max
25°
2
Dec r ease
5
Smalle r
(*)
4
CO
2
Shallowe r
Penet r ation
1
Dec r ease
3
Leading
2
Inc r ease
5
La r ge r
4
A r CO
2
mix
La r ge r Bead
1
Inc r ease
2
Dec r ease
3
Inc r ease
(*)
Smalle r Bead
2
Dec r ease
2
Inc r ease
3
Dec r ease
(*)
Highe r
Na rr owe r Bead
1
Dec r ease
2
T r ailing
3
Inc r ease
Flatte r Wide r
Bead
1
Inc r ease
2
90° o r
Leading
3
Dec r ease
Faste r
Deposition Rate
1
Inc r ease
2
Inc r ease
(*)
3
Smalle r
Slowe r
Deposition Rate
1
Dec r ease
2
Dec r ease
(*)
3
La r ge r
Welding Variable
Key: (1) Fi r st Choice, (2) Second Choice, (3) Thi r d Choice, (4) Fou r th Choice, (5) Fifth Choice
NOTE
Same adjustment is r equi r ed fo r wi r e feed speed.
* When these va r iables a r e changed, the wi r e feed speed must be adjusted so that the welding cu rr ent r emains
constant. See DEPOSITION RATE in the WELDING VARIABLES section. This change is especially helpful on mate r ials
of 20 gauge (.04” 1mm app r oximately) and smalle r in thickness.