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ADVANCEARC 400 • ADVANCEARC 500
2.3 Open gas cylinder valve and adjust regulator,
flowshould be between 5-10 l/mindepending
onapplication.Re-checkregulatorflowpressure
with torch valve open as static gas flow setting
may drop once gas is flowing.
2.4 Connect the machine to suitable mains power
using the mains input power lead. Switch the
mains power switch to ‘on’ to power up the ma-
chine.SelectLiftTIGweldingmode(8)usingthe
button(5).
High Tensile and Alloy Steels
The two most prominent effects of welding these
steels are the formation of a hardened zone in the
weld area, and, if suitable precautions are not taken,
the occurrence in this zone of under-bead cracks.
Hardenedzoneandunderbeadcracksintheweldarea
may be reduced by using the correct electrodes, pre-
heating, using higher current settings, using larger
electrodes sizes, short runs for larger electrode de-
posits or tempering in a furnace.
Manganese Steels
The effect on manganese steel of slow cooling from
high temperatures causes embrittlement. For this
reason it is absolutely essential to keep manganese
steelcool during welding by quenching after each
weld or skip welding to distribute the heat.
Cast Iron
Mosttypesofcastiron,exceptwhiteiron,areweld-
able.Whiteiron,becauseofitsextremebrittleness,
generally cracks when attempts are made to weld it.
Trouble may also be experienced when welding
white-heartmalleable,duetotheporositycausedby
gas held in this type of iron.
Copper and Alloys
The most important factor is the high rate of heat
conductivityofcopper,makingpre-heatingofheavy
sections necessary to give proper fusion of weld and
base metal.
Types of Electrodes
ARCWeldingelectrodesareclassifiedintoanumber
of groups depending on their applications. There are
a great number of electrodes used for specialised in-
dustrial purposes which are not of particular interest
for everyday general work. These include some low
hydrogen types for high tensile steel, cellulose types
for welding large diameter pipes, etc. The range of
electrodes dealt with in this publication will cover the
vast majority of applications likely to be encountered;
are all easy to use.
MILD STEEL :
E6011-Thiselectrodeisusedforall-positionweldingor for welding
onrusty,dirty,less-than-newmetal.Ithasadeep,penetratingarc
and is often the first choice for repair or maintenance work.
E6013 -Thisall-positionelectrodeisusedforweldingclean,new
sheetmetal.Itssoftarchasminimalspatter,moderatepenetration
andaneasy-to-cleanslag.
E7014 -Allpositional,easetouseelectrodeforuseonthickersteel
thanE6013.Especiallysuitableforsheetmetallapjoints,filletwelds
and general purpose plate welding.
E7018-Alow-hydrogen,all-positionelectrodeusedwhenqualityis
anissueorforhard-to-weldmetals.Ithasthecapabilityofproducing
more uniform weld metal, which has better impact properties at low
temperatures.
CAST IRON
ENI-CL -Suitableforjoiningallcastironsexceptwhitecast iron.
STAINLESS STEEL:
E318L-16 -Highcorrosionresistances.Idealfordairywork etc.
Electrodes for Joining Different Metals
Effects of MMA Welding Various Materials
2.5 Select the required output current using the
currentcontrolknob(1).Youarenowreadyto
weld!
Pleasenote,theAdvanceArc400/500isaDC(Direct
Current)outputwelderonly,thismeansthatitisun-
abletoTIGweldreactivemetalssuchasAluminium
alloysandBrass(whichrequireACoutput).DCTIG
output is suitable for steel, stainless steel and copper.
The AdvanceArc ACDC series are the models in the
rangethataredesignedforTIGweldingAluminium
and its alloys.
