69
Chapter 6
W
elding Condition
S
ETTING
W
ELDING
C
ONDITIONS
W
ELDING
C
ONDITION
C
HAPTER
6
6.6.3
Setting welding parameter
This section explains how to set the welding parameter (gas discharge time, welding current/voltage). The welding
parameters are set according to the welding sequence.
6.6.3.1
Welding sequence
The basic welding sequence is the process of PRE FLOW, MAIN CONDITION, and POST FLOW. To this sequence, initial
condition and crater-fill condition can be added depending on the crater setting. The welding parameters such as gas
discharge time, welding current and voltage should be set to this sequence.
Each sequence process has the following description:
6.6.3.2
Welding parameter setting
This section explains how to set the welding parameters (gas discharge time, welding current/voltage) according to the
welding sequence.
1.
Set the gas discharge time.
●
Press the DISPLAY CHANGE key, and select the LED of "PRE FLOW" (or "POST FLOW").
●
Turn the parameter adjustment knob to set the gas discharge time.
The set parameter is displayed on the left digital meter.
Process
Description
PRE FLOW
It is the sequence to discharge gas before the welding starts.
INITIAL CONDITION
It is the sequence to process the welding start.
MAIN CONDITION
It is the welding sequence.
CRATER -FILL CONDITION It is the sequence to process the crater part.
POST FLOW
It is the sequence to discharge gas after the welding completes.
INITIAL
CONDITION
CRATER-FILL
CONDITION
POST
FLOW
MAIN
CONDITION
PRE
FLOW
U
NIT
C
H
AN
G
E
key
DI
S
PLA
Y
C
H
AN
G
E
key
P
OS
T
FL
O
W
LED
CRATER-FILL
C
O
NDITI
O
N
LED
MAIN
C
O
NDITI
O
N
LED
PRE
FL
O
W
LED
INITIAL
C
O
NDITI
O
N
LED
P
arameter adjustment knob
Screen operation knob
