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Tig Grinding Wheel ???

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  • phila.renewal
    replied
    I watched Ron Covell sharpen his tungsten on a belt sander.

    Good enough for Ron, good enough for me. Low buck too.

    Leave a comment:


  • Sundown
    replied
    Originally posted by fun4now View Post
    some one pointed out this guy as a good option for a 6" diomomd wheel for your bench grinder. its my next purchase.the $ is low enough you could get an 80grit for one side to quick cut and then a 400 or 600 grit to realy polish that thing up nice on the other side
    this is the wheel i'm looking at
    http://cgi.ebay.com/Diamond-Grinding...QQcmdZViewItem
    but he has several options even a 2 grit due disk.
    you might want to look into him for a grinder option.
    http://search.ebay.com/_W0QQsassZjadecarver
    I think that must have been Barry as he has a setup like that. I have the site bookmarked for some time now just haven't go around to deciding yet. Thanks for reminding me though.

    Leave a comment:


  • fun4now
    replied
    some one pointed out this guy as a good option for a 6" diomomd wheel for your bench grinder. its my next purchase.the $ is low enough you could get an 80grit for one side to quick cut and then a 400 or 600 grit to realy polish that thing up nice on the other side
    this is the wheel i'm looking at
    http://cgi.ebay.com/Diamond-Grinding...QQcmdZViewItem
    but he has several options even a 2 grit due disk.
    you might want to look into him for a grinder option.
    http://search.ebay.com/_W0QQsassZjadecarver

    Leave a comment:


  • Sundown
    replied
    This is an interesting subject, when I had a sharpie grinder I found, after placing some tips under a microscope, that the machine would grind a swirl pattern to the tip due to the fact that in order to make it work properly you needed to twirl the tungsten. Looks to me like that would be the case with almost any grinder, or method, I ever saw.

    I also found that I could get strighter lines using my 6" grinder and a Silo Tig for an investment of $30. Then someone told me to get a green wheel as it would sharpen tungsten better, so I spent another $35 and bought a 100 grit SiCarbide wheel. It did really work great so I told everyone about it, the next thing I know someone pops up with, "don't use that wheel it will contaminate the weld". So now it's relaguated to knife sharpening duties and I am back to using a aluminum oxide wheel.

    I guess that diamond is really the only way to be sure, but until I win the lottery, or until my welds turn crappy for reasons that can be traced to grinding tungsten, I will stick to the bench grinder and the Silo Tig.

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  • crawler
    replied
    Anyone try a disk sander to sharpen tunsten? What kind of abrasive paper do I need or will emory cloth work?

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  • Bert
    replied
    My teacher had retired from Pearl Harbor and all theri stuff is x-rayed. He taught us to use a grinding wheel and just point the tip up in the air, sharpening it like James (fun4now) said. I've tried both, and personally think running the scratches legnthwise gave me a more stable arc. Far as the powder/liquid sharpening stuff, worked real good, but really made the tungsten REALLY skinny!!!!
    my 2 cents

    Leave a comment:


  • fun4now
    replied
    i think that only aplies to thorated. but nope, i dont. i tuch it with bare hands to put it in the torch all the time. during sharpening i useualy have a glove one but i dont see it as a problem with 2% lanthanated.

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  • ttype
    replied
    What about touching the tungsten with bare hands while sharpening ?
    Manuals say not to, but does any one worry about this ?

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  • fun4now
    replied
    i would say production shopits almost a must to keep quality control and speed up. in a nome or small shop i supose its more personal prefereance. HAWK had a small shop and had the PII and i think upgraded from that to the PIII. could be a prefectionest type personality causted it or he just valued a nicely ground tungsten. , i supose that dosent help much dose it. i think if i was going to use thorated a PIII would be a must for dust colection in my thinking but then i dont see the point to useing it anyway when there are better options available that are not RA. i supose ther could still be some contracts that will speck out the tungsten to be used and thorated could well be in there.
    for a small not so buisy shop i think a sharpie would be fine, with $30 dubble sided replacement cutting wheels its a fairly cheap to maintain option that will get you repeatable results for your tungsten grinding needs. at the same time many argue none are needed just throw it on a bench grinder and get it close and you are good to go.
    tuff call realy, personal preferance has to play a large role in this desition.

    Leave a comment:


  • alha
    replied
    Originally posted by fun4now View Post
    ...
    i was not talking about getting one of then but rather just getting the D-disk to put on my 6: bench grinder. they also have some due grit options. in comparison to the dedicated grinders they are prity cheap at $40-120 a disk, far better than buying a PIII price wise but the PIII is supposed to be a great grinder, just way too much $$ for me
    they do cover the grind direction isu though, if they set up a $2000= grinder to grind with the direction of the tungsten towrd the point, it must be the best way to do it. only thing i can see this guy saying grind sideways for is it might be safer from a kickback point of view ?? but i suspect its a typo, again a letter to the editor would be in order if ya ask me.might even get ya a free subscription renewal out of it.
    I was actually going to start a thread about grinders one of these days, but this one seems to be on topic, so I'll ask here. I have read up on the PII and PIII grinders, and also the DGP series, and had to ask, are they worth it? I've heard a couple ppl mention they have them, and I believe they were happy with them, someone even upgraded from the II to the III, if I remember correctly.

    Is the opinion that these are worthwhile, as they are fairly automated, and take care of the dust as well, or are they more for a production shop environment?

    Leave a comment:


  • fun4now
    replied
    i havent tryed it personaly, but want to some time, just keep forgetting to get some when at the LWS.
    i have herd it makes a nice point but you do need to wach it to keep it from eating up too much.
    i always wonderd how do you heat the tungsten to use the dip??? just have a long stick out and spark an arc??? but that would seem to contaminate it in the air??? how hot dose it need to be and how do you heat it??? all this info is probly on the jar, i just never remember to look.

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  • PLUMMER
    replied
    anyone here use the white powdered crystals for sharpening to a razor point. I bought some and it seems to work excellent and quickly with little waste. Just have to + the electrode to heat it up red hot and dip , it then turns to liquid and sizzles off the contaminated Tg and sharpens to a perfect needle point no matter what shape it was in before the dip.

    Leave a comment:


  • dabar39
    replied
    tungsten grinding

    Back when I first started to tig weld I didn't have anyone tell me the right or wrong way to grind the tungsten. I started out grinding across the grain and did so for quite some time until I was told otherwise, Me personally I couldn't find a difference in the welding or arc either way it was ground. Dave

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  • fun4now
    replied
    thats odd, this is the first time i have herd of it being an exceptable methode to grind acrost the tungsten?? i supose it may not be as critical as one would be lead to believe, just the same i think i'll stick to grinding in the direction of the tungsten, its how i lerned.

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  • Wheelchair
    replied
    Originally posted by fun4now View Post
    i noticed every one is sayingh they have had good results grinding the same way for years but not saying the way they grind it ??
    so to clarify i grind with the tungsten not acrost it.
    Where I worked we always grind across the tungsten. I We just roll it around the grinding wheel the way you would roll a Q-Tip in your fingers. This was the way we were taught and we used it on nuclear pipe on submarines and all other pipe. I guess everyone has a way to suit their needs. I hope this clarifies how it worked for us.

    Thank you
    Wheelchair {Bill Green**

    Leave a comment:

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