18
PULSE DC TIG WELDING — SET UP PARAMETERS:
4HEFOLLOWINGSTEPSAREAGUIDEFORYOUTOSETTHEMACHINEUPIN0ULSEMODE9OUCANEXPERIMENT
BYCHANGINGANYOFTHEVARIABLESTOSEEWHATEFFECTITHASOVERTHEWELD)TISSUGGESTEDTHATYOU
CHANGEONLYONEVARIABLEATATIMEANDTHENCHECKTHERESULTS)NTHISWAYYOUACQUIREABETTER
UNDERSTANDINGOFHOWEACHVARIABLEAFFECTSTHEOUTCOMEOFTHEWELD
TIME = 1 SECOND
)
)
*
+
,
,
+
,
,
+
,
,
+
,
*
-
)
)
*
+
,
*
-
PEAK CURRENT
BACKGROUND AMPS
/N
4IME
PULSE WIDTH
%XAMPLEOF0ULSEVS.ON0ULSE
WELDlNISH
EXAMPLE OF PULSE DC TIG WELDING
1
2
3
4
5
0REPARETHEMACHINEFOR$#4)'WELDING
3ETTHE0ULSESWITCHTO05,3%/.
3ETTHE0EAK#URRENTAT!MPS
3ETTHE"ACKGROUND!MPSAROUND
"ACKGROUND!MPSISAPERCENTOFTHE0EAK#URRENT
EGOF!MPS
3ETTHE0ULSE&REQUENCYAROUND(ZPULSES
PERSECOND
3
2
4
5
3ETTHE0EAK#URRENTAT!MPS
3ETTO05,3%/.
3ETTHE"ACKGROUND
!MPSAROUND
3ETTHE0ULSE&REQUENCYAROUND
(ZPULSESPERSECOND
05,3%
./.05,3%
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