TIG Tungsten Grinding

[taylorkh]

I am using these http://www.widgetsupply.com/product/SGQ8-38540.html diamond wheels in a Dremel tool. I have tried 80 grit (too coarse), 100 (good for roughing a new tungsten or cleaning contamination) and 300 or 400 for final polish and touchup. They work great and the price is right. I will try and post a picture of my high dollar (about $20) sharpening machine later today.

And, for what it is worth, I us a purple Scotchbrite stripper disc in my drill press to put a final polish on the tungsten. It also removes any tarnish from previous use.

Ken

[turbo38t]

Another excellent solution is to put the tungsten in a cordless drilland sharpen it on a benchtop vertical belt sander. Very consistent. Always sharpen the tungsten in the direction of travel, not perpendicular. Dave

[taylorkh]

Here, I hope, is a picture of my home made sharpener...



Well, the site refuses to show it. But anyhow the Dremel is a battery powered unit. It uses rechargeable AAs. The disks in the tool are 100 and 300 grit separated by a piece of cork gasket material. This prevents the two from rubbing together and damaging the diamond coating on the back side. The spare disks are 80 and 400 grit. The chuck, originally from a cordless drill I think, makes it easy to hold and rotate short or small diameter electrodes. I have done a considerable amount of sharpening and the disks seem to be holding up fine.

If I had to choose 2 I would go with the 100 and 400 grit disks.

Ken

[shovelon]

Here you go.

[cope]

When I was looking for a grinder, several people recommended this one.

http://www.harborfreight.com/3-inch-...her-94071.html

[Gamble]

I use this and it works really well and is cheap and quiet
http://www.harborfreight.com/multipu...ner-99823.html

However next I'm getting one of these tungsten grinders, just can't decide if I want wall powered or battery powered!
http://www.ebay.com/itm/TIG-Welder-T...item20b393bc65

http://www.ebay.com/itm/USAWELD-Batt...item27c4f234f7

[shovelon]

When I was looking for a grinder, several people recommended this one.

http://www.harborfreight.com/3-inch-...her-94071.html

I have one I bought with a coupon. I take it onsite with my Dynasty200. It gets the job done, but I prefer my belt sander hands down.

[Jeff2013]

Hi,

I'm trying to get my ducks in a row so that I can grind some tungsten.

I have a spare grinder. I plan on replacing the existing wheel with one that I can dedicate to tungsten.

My question is this.... is 100 grit fine enough? I have done a quick search on Amazon and I don't see anything finer for a stone.

(Is there a good reference for fine diamond? I have seen a couple posts for used diamond plates; but, they require some sort of backing plate. I'm open to the idea; but, i want to make sure I buy everything I need.)

Thanks

Jeff