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Posted by on April 21, 2008, 9:04 pm
Please log in for more thread options well, i do prefer watching the arc and the puddle since i have a eye
protection anyway. but the flashes are just too bright even when
wearing dark lenses.
maybe the there's some steel bits on my tungsten which then got
vaporized and lit.... i dunno if that's what happens when steel
vaporizes.
i guess i'll just have to try to use a "clean" and dedicated grinding
stone for my tungsten electrodes then see if that still happens.
> lethaldri...@gmail.com wrote:
> > I don't have a bench grinder but i do have an angle grinder to sharpen
> > thoriated tungsten electrodes.
>
> > I'm having problems with the arc it seems to create bright pulsing
> > flashes making it very difficult for me to see the arc and weld
> > puddle.
>
> > is this caused by a contaminated tungsten electrode?
> > OR
> > is that what happens when the tungsten electrode is contaminated with
> > other metal bits from the grinding stone?
>
> > perhaps my angle grinder isn't clean enough and contains some steel/
> > aluminum bits which contaminated the electrode.
>
> Yes, you should use a special grinder (or at least the wheel) for
> grinding the tungstens.
>
> A trick I use is to hold the torch such that the cup shields my eyes
> from the brightest part of the arc, usually right at the tip of the
> electrode. Then, the arc lights up the work and I can usually see the
> puddle quite nicely. I usually do sort of micro-welding and get right
> up there with my nose inches from the arc.
>
> Jon
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> thoriated tungsten electrodes.
>
> I'm having problems with the arc it seems to create bright pulsing
> flashes making it very difficult for me to see the arc and weld
> puddle.
>
> is this caused by a contaminated tungsten electrode?
> OR
> is that what happens when the tungsten electrode is contaminated with
> other metal bits from the grinding stone?
>
> perhaps my angle grinder isn't clean enough and contains some steel/
> aluminum bits which contaminated the electrode.