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No pulse
High frequency
pulsing
0ULSE4)'WELDINGISWHENTHEOUTPUTCURRENTCHANGESBETWEENHIGHANDLOWCURRENT
%LECTRONICSWITHINTHEWELDINGMACHINECREATETHEPULSECYCLE7ELDINGISDONEDURINGTHE
HIGHCURRENTINTERVALREFERREDTOASPEAKCURRENT $URINGTHELOWCURRENTINTERVALREFERREDTOAS
BACKGROUNDCURRENT THEWELDPOOLCOOLSDUETOANOVERALLLOWERHEATINPUTINTOTHEBASEMETAL
0ULSEDOUTPUTALLOWSFORCONTROLLEDHEATINGANDCOOLINGPERIODSDURINGWELDINGPROVIDINGBETTER
OPERATORCONTROLOFHEATINPUTWELDPENETRATIONANDWELDAPPEARANCE
The MT200-AC/DC has three variables within the pulse cycle:
Peak Current - Background Current - Pulse Frequency
3ETTINGANDMANIPULATIONOFTHESEVARIABLESWILLDETERMINETHENATUREOFTHEWELDCURRENTOUTPUT
ANDISATTHEDISCRETIONOFTHEOPERATOR
PEAK CURRENT
ISTHEMAINWELDINGCURRENTSETTOMELTTHEMATERIALBEINGWELDEDANDWORKS
THESAMEASSETTINGMAXIMUMCURRENTVALUESFORREGULAR4)'WELDING
BACKGROUND CURRENT
ISTHELEVELSETTOCOOLTHEWELDPUDDLEANDLOWERTHEOVERALLHEAT
INPUT"ACKGROUNDCURRENTISAPERCENTAGEOFPEAKCURRENT!SARULEUSEENOUGHBACKGROUND
CURRENTTOREDUCETHEWELDPOOLTOABOUTHALFITSNORMALSIZEWHILESTILLKEEPINGTHEWELDPOOL
mUID!SAGUIDESTARTBYSETTINGTHEBACKGROUNDCURRENTATTOPERCENTOFPEAKCURRENT
PULSE FREQUENCY
ISTHECONTROLOFTHEAMOUNTOFTIMESPERSECOND(Z THATTHEWELDING
CURRENTSWITCHESFROMPEAKCURRENTTOBACKGROUNDCURRENT$#0ULSE4)'FREQUENCYRANGESFROM
TO(ZDEPENDINGONTHEJOBAPPLICATION#ONTROLOFTHEPULSEFREQUENCY
ALSODETERMINESTHEAPPEARANCEOFTHEWELD
DC PULSE TIG WELDING
$#0ULSE4)'WELDINGALLOWSFASTERWELDINGSPEEDSWITHBETTER
CONTROLOFTHEHEATINPUTTOTHEWORKWHICHISANADVANTAGEINTHE
WELDINGOFTHINSTAINLESSANDCARBONSTEELS)TREDUCESTHEHEAT
INPUTMINIMIZINGDISTORTIONANDWARPINGOFTHEWORK4HEHIGH
PULSEFREQUENCYCAPABILITYOFTHEADVANCEDINVERTERAGITATESTHE
WELDPUDDLEANDALLOWSYOUTOMOVEQUICKLYWITHOUTTRANSFERRING
TOOMUCHHEATTOTHESURROUNDINGMETAL0ULSINGALSOCONSTRICTSAND
FOCUSESTHEARCCONEWHICHINCREASESARCSTABILITYANDPENETRATION
No pulse
High frequency
pulsing
PULSE TIG WELDING
www.CKWORLDWIDE.com
The MT200-AC/DC has
three variables within
the pulse cycle:
Peak Current
Background Current
Pulse Frequency
Peak
Background
ON
OFF
CURRENT
TIME