Welding Technology Aspects; Protective Gas Shields For Twin Welding Processes; Conducting R/L Comparison - Fronius TPS/i Robotics TWIN Push Operating Instructions Manual

Welding Technology Aspects

Protective gas
Material
shields for TWIN
Non-alloyed and low-alloy steels
welding process-
es
CrNi steels, high-alloy steels
Aluminum
Gas control
Set the same gas flow volume on both power sources.
The entire gas flow volume must be a total of approx. 25 - 30 l/min.
Example:
gas flow volume = 30 l/min
==> set power source 1 to 15 l/min and power source 2 to 15 l/min
TWIN welding torch/TWIN mode:
both solenoid valves are switched
TWIN welding torch/single wire mode:
both solenoid valves are switched
Single welding torch with adapter (TXi interchangeable coupling optional):
one solenoid valve is switched
(solenoid valve for the power source selected by the robot controls)
Gas pre-flow/gas post-flow with TWIN welding torch:
the same value should generally be set on both power sources;
if the values are different, the larger value is automatically applied to both power sources.
Conducting R/L IMPORTANT! The R/L comparison must be carried out separately for each power source.
comparison
R = welding circuit resistance [mOhm]
L = welding circuit inductivity [µH]
Protective gas shield
ArCO , ArO2 and ArCO O
2 2
ArCO mixtures, proportion of active gas max.
2
2.5%
ArO mixtures, proportion of active gas max. 3%
2
ArCO He mixtures, proportion of active gas max.
2
xx%
Ar (99.9%), ArHe mixtures
mixtures
2
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