reason for pulsed arc

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i was wondering wat the reason is for using pulsed arc on  tig welding
Reply:Don't know, it's an option on my Miller.  The only thing I can figure is welding body panels while moving slowly, putting small tacks in, to keep from warping the panel.
Reply:I'm pretty sure there was an in depth thread on this not too long ago.... do a search on it._________________Chris
Reply:Pulser will be the best to aswer your question.  I asked the same one.  Pulsed current puts LESS total heat into the base metal with out causing distortion and still getting complete penatration.My tig has it.  I rarely use it.  When I do use it, I NEED it to prevent burnthrough on the small stuff.DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:thanks ,hav it on my own machine aswel,was just curious
Reply:What I have heard about it is that its used to tig weld aluminum to break through any oxide that is still left on the surface of the work.  Or am I thinking something else?
Reply:Here you go.http://www.weldingweb.com/vbb/showthread...ighlight=pulsehttp://www.weldingweb.com/vbb/showthread...ghlight=pulsedThere may be more if you do your own seach.
Reply:exellent,thank you very much,as we say in ireland"cheers"