Section 11 − Guidelines For Tig Welding (Gtaw); Positioning The Torch - Miller Syncrowave 250 DX Technical Manual

SECTION 11 − GUIDELINES FOR TIG WELDING (GTAW)

11-1. Positioning The Torch

4
°
10−25
Bottom View Of Gas Cup
TM-359 Page 100
3
2
°
90
1
°
10−15
5
6
5
6
1/16 in
3/16 in
Y Weld current can damage
electronic parts in vehicles.
Disconnect
cables before welding on a
vehicle. Place work clamp as
close to the weld as possible.
.
For additional information, see
your distributor for a handbook
on the Gas Tungsten Arc Weld-
ing (GTAW) process.
1 Workpiece
Make sure workpiece is clean
before welding.
2 Work Clamp
4
Place as close to the weld as
possible.
3 Torch
4 Filler Rod (If Applicable)
5 Gas Cup
6 Tungsten Electrode
Select and
according to Sections 10-1 and
10-2.
Guidelines:
The inside diameter of the gas cup
should be at least three times the
tungsten diameter to provide ade-
quate shielding gas coverage. (For
example, if tungsten is 1/16 in
diameter, gas cup should be a
minimum of 3/16 in diameter.
Tungsten extension is the distance
the tungsten extends out gas cup of
torch.
The tungsten extension should be
no greater than the inside diameter
of the gas cup.
Arc length is the distance from the
tungsten to the workpiece.
both battery
prepare tungsten
Ref. ST-161 892
Syncrowave 250 DX