Tungsten Welding Rod; Tig Welding Shield Gas; Filler Wire - Panasonic YC-300BZ3YHD Operating Instructions Manual

14.2 Tungsten welding rod

1) The following table shows tungsten electrode types commonly used for TIG welding.
Tungsten electrode type
Pure tungsten
Tungsten with 2 % Cerium trioxide
Tungsten with 2 % Lanthanum trioxide
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• YWP: Pure tungsten.
• YWCe-2: Tungsten with 2%Cerium trioxide
• YWLa-2: Tungsten with 2% Lanthanum trioxide
2) Refer to the following table for the selection of tungsten electrode diameters.
Electrode size (Dia.)
(mm )
0.5
1.0
1.6
2.4
3.2
4.0
4.8

14.3 TIG welding shield gas


As for the TIG welding shield gas, use the welding
argon gas.

The incorporation of impurities, such as oxygen, mois-
ture, nitrogen, etc. into the argon gas, can be a cause to

14.4 Filler wire


For the filler wire, material, which is same as base mate-
rial, is used in general. In special cases including the
welding of different metal, etc., select material depend-
ing on your purposes.

As for the diameter of filler wire, an appropriate thick-
ness is decided depending on the welding current in
general.
OMCTT5621E18
Electrode minus (-) (DCEN)
5 - 20
15 - 80
70 - 150
150 - 250
250 - 400
400 - 500
500 - 800
Symbol Applicable TIG welding method
YWP AC TIG
YWCe-2 DC TIG, AC TIG
YWLa-2 DC TIG
Welding current (A)
Electrode plus (+) (DCEP)
blowholes, and reduces the quality of welding. (In AC
TIG and MIX TIG, the cleaning activities also become
less efficient, and the welding quality in bead appear-
ance, penetration, etc. is considerably affected.)
Guideline for selecting filler wire diameter
Welding current (A)
10 - 20
20 - 50
50 - 100
100 - 200
200 - 300
Appendix
10 - 20
15 - 30
25 - 40
40 - 55
55 - 80
Filler wire size (Dia.) (mm )
Up to 1.0
Up to 1.6
1.0 - 2.4
1.6 - 3.0
2.4 - 4.5
55