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Old 12-06-2007, 09:59 PM
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Default Arc-Zone tungsten grinders?

Anybody buy or have experience with any of the arc-zone tungsten sharpeners?

I just bought the "sharpie standard" figured I'd give it a try. I seem to have a problem with people using the "TUNGSTEN ONLY" labelled grinding wheels and using them to grind whatever the hell they feel like grinding that ISN'T tungsten and contaminates my work and generally causes me headaches.

Also I'm trying to get more into doing aluminum work as I have a couple buddies that want me to weld bungs into intercooler piping and what not, and I hear that aluminum is even more susceptible to tungsten spitting and contamination than the steel and stainless work I've been doing lately
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Old 12-06-2007, 10:09 PM
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Just an FYI, Arc-Zone doesn't make any of those grinders. They are all re-badged product made somewhere else. Not that there is anything wrong with that.

I have a Pirhana III which is made by Diamond Ground Products and it has been awesome. The Sharpie has gotten pretty good reviews on some of the forums. You might try doing a search over on Miller and Hobart.
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Old 12-06-2007, 11:28 PM
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I like arc zone. I've ordered a few things from them and they have always been helpful, sounds like they've been in the business for a long time.

t
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Old 12-07-2007, 03:47 AM
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Greenbuggy,
dont mean to bust your bubble, but in the hobart site some people have stated the grinder is the same one as a 30 dollar (black and decker I think) from home depot. The only thing is the sharpie comes with the guide for grinding the tungsten. I think Dan on the hobart site has a review.

-Ryan
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Old 12-07-2007, 06:27 PM
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Quote:
Originally Posted by ace4059 View Post
Greenbuggy,
dont mean to bust your bubble, but in the hobart site some people have stated the grinder is the same one as a 30 dollar (black and decker I think) from home depot. The only thing is the sharpie comes with the guide for grinding the tungsten. I think Dan on the hobart site has a review.

-Ryan
isnt the point of the tung grinder to have that guide?
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Old 12-07-2007, 06:44 PM
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Minor hijacking in process.

Aha, I can ask my question, finally.

How does the use of the available Tungsten Pointing paste work compared to a mechanically ground point/work end?

I know different materials tend to prefer subtle differences in the shape of the tungstens work end, so how does the use of the paste stand up to that need?

Which materials would better be welded/joined with ground points/ends over the paste done points/ends?
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Old 12-09-2007, 05:30 PM
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Quote:
Originally Posted by rocketeir View Post
isnt the point of the tung grinder to have that guide?
but you are basically paying an extra $250 just for the guide. one could make a guide for a lot less. plus the people that have used one, have been disapointed.
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  #8  
Old 12-09-2007, 06:46 PM
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I have one and am very happy with it. As far as the B&D Wizard... Yup, I bought one as a backup motor. A green stone, wet run, bench model that costs upwards of a $1000 is obviously better. But for what it was intended the little rascal does a great job.
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Old 12-09-2007, 07:43 PM
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Quote:
Thoriated-tungsten is pointed accurately and quickly by using sodium nitrite. Point produced is smooth and no effort is necessary to hold the tungsten rod concentric. The chemically produced point can be used several times longer than ground points. This method reduces time and cost of preparing tungsten electrodes.
Minor hijacking in process.

If the above is true, then why aren't more people using it?

Aha, I can ask my question, finally.

How does the use of the available Tungsten Pointing paste work compared to a mechanically ground point/work end?

I know different materials tend to prefer subtle differences in the shape of the tungstens work end, so how does the use of the paste stand up to that need?

Which materials would better be welded/joined with ground points/ends over the paste done points/ends?
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Old 12-09-2007, 08:11 PM
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lw,

I've used the paste with good results, but the paste gets weaker as time goes on, from contamination, after a while it doesn't work at all.

jack
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