Tungsten Welding Rod; Tig Welding Shield Gas; Filler Wire - Panasonic YC-300BP2YAF Operating Instructions Manual

Appendix

11.1.2 Tungsten welding rod


As for the selection of tungsten welding rod diame-
ters, refer to the following table.
Welding
rod size
(Dia.)
(mm )
0.5
1.0
1.6
2.4
3.2
4.0
4.8

In the range of welding current for electrode minus
(DCEN), the lowest value shows the minimum ser-
vice current for YWP welding rod, and the highest
value shows the maximum service current for
YWTh-2 welding rod.

11.1.3 TIG welding shield gas


As for the TIG welding shield gas, use the welding
argon gas.

The incorporation of impurities, such as oxygen,
moisture, nitrogen, etc. into the argon gas, can be
a cause to blowholes, and reduces the quality of

11.1.4 Filler wire


For the filler wire, material, which is same as base
material, is used in general. In special cases
including the welding of different metal, etc., select
material depending on your purposes.

As for the diameter of filler wire, an appropriate
thickness is decided depending on the welding
current in general.
58
AC
YWP YWTh-2
5 - 15 5 - 20
10 - 30 10 - 40
20 - 100 20 - 100
60 - 130 60 - 180
100 - 160 120 - 240
130 - 240 160 - 380
170 - 300 180 - 360
Welding current (A)
Electrode minus (-)
(DCEN)
YWP
YWTh-2
5 - 20
15 - 80
70 - 150
150 - 250
250 - 400
400 - 500
500 - 800

YWP: Pure tungsten. YWTh-2: 2% thoriated tung-
sten

If arc is not stable in the low current range, refer to
section "Troubleshooting."
welding. (In AC TIG and MIX TIG, the cleaning
activities also become less efficient, and the weld-
ing quality in bead appearance, penetration, etc. is
considerably affected.)
Guideline for selecting filler wire diameter
Welding current (A)
10 - 20
20 - 50
50 - 100
100 - 200
200 - 300
DC
Electrode plus
(+)(DCEP)
YWP
YWTh-2
10 - 20
15 - 30
25 - 40
40 - 55
55 - 80
Filler wire size (Dia.) (mm )
- 1.0
- 1.6
1.0 - 2.4
1.6 - 3.0
2.4 - 4.5
OMCTT5639E09