Panasonic YC-300BP2YAF Operating Instructions Manual page 24

Names and Functions

MIX frequency
Applicable to the MIX TIG welding.
It means the number of repeat times per second of
the waveform shown as (1Hz) in the right diagram.

DC ratio
Means the MIX (DC) ratio and is applicable to the
MIX TIG welding.
With regard to the MIX frequency, it is obtainable
from the following formula as the ratio between the
width of a DC waveform (tad in the right diagram)
and the width of a waveform per 1Hz in MIX fre-
quency (Tmix in the following diagram).
DC ratio (%)=(tad / Tmix) X 100

AC frequency
Applicable to AC TIG welding or MIX TIG welding.
It means the number of repeat times per second of the
waveform shown as (1Hz) in the rightdiagram.
Note Setting example of the AC frequency with regard to a welding joint
The following table shows some reference values as a guide for the aluminum (A5052) welding. (In the actual welding
operation, they are not applied to all kinds of material/substances.)
AC frequency (Hz)
Welding joint
Th ick ne s s (m m )
C urr en t (A )
S pe ed (cm/min)
Arc spot time (S)
For your reference: Setting example of the AC frequency with regard to a welding joint
The following table shows some reference values as a guide for the aluminum (A5052) welding. (In the actual
welding operation, they are not applied to all kinds of material/substances.)
24
120 200
Multi-layer Circular
Butt Fillet
8.0 3.0
Pulse current: 225
180 to 200 Welding current:
165
10Å`20 20
- -
AC DC
(1Hz)
MIX frequency
AC DC
tad
Tmix
(MIX frequency: 1Hz)
AC standard TIG
(1Hz)
(1Hz)
AC frequency
250 300
Butt Fillet
3.0 6.0
135 280
25 18
- -
MIX TIG
AC DC
AC frequency
400
FIllet
(Tack welding of
thin plate)
1.0
110
-
0.5
OMCTT5639E09