Tig Modes; Symbols And Their Explanations; 2-Step Mode - Fronius AccuPocket 150/400 TIG Operating Instructions Manual

TIG modes

Symbols and
their explanations
Pull back and hold the
torch trigger
Adjustable parameters:
-
-
-
-
-
Fixed parameters:
-
-
-
-
-

2-step mode

See the
1
2
3
4-step mode See the
42
Release the torch trigger
forwards
GPo: Gas post-flow time
I-S: Starting-current phase - the temperature is raised gently at low welding current,
so that the filler metal can be positioned correctly
I-E: Final current phase - to prevent crater cracks or cavitations
I-1: Main current phase (welding-current phase) - uniform thermal input into the base
material, whose temperature is raised by the continuous heat
I-2: Reduced current phase - intermediate lowering of the welding current in order to
prevent any local overheating of the base material
GPr: Gas pre-flow time
t : UpSlope phase - the welding current is continually increased
up
Duration = 0.5 seconds
t : DownSlope phase - the welding current is continually decreased
down
Duration = 0.5 seconds
t : Starting current duration
S
t : Final current duration
E
2-step mode section on page
I
GPr
t
up
1 2
Place the tungsten electrode onto the workpiece and then pull the torch trigger back
and hold => shielding gas flows
Raise the tungsten electrode => arc ignites
Release torch trigger => end of welding
4-step mode section on page
Push forward and hold
the torch trigger
51 for details on how to activate 2-step mode.
I-1
51 for details on how to activate 4-step mode.
Release the torch trigger
backwards
GPo
t
down
3
t