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  1. #1

    Default TIG Tungsten Grinding

    I have been using a 6" table grinder for my tungsten. Basically, this was how i learned to TIG weld. However, this week i have seen a major difference in my welds when I used a new wheel. So, I am wondering how much money I should invest into a better grinding system? I do not have a ton of money laying around to blow on this. Buy, if there is a HUGE quality improvement then I will need to weigh the pro's on cons.

    I am mainly welding 7005 Aluminum Tubing with a Diversion 165. I do not weld a lot of hours in a month. Maybe 15 to 20 hours at best.

    What is the best value for tungsten grinding?

    Your advise is grearly appreciated

  2. #2
    Join Date
    Sep 2005
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    northern NJ
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    Default

    You can either buy a tungsten grinder which is most likely best but more money or a cheap bench grinder with a new wheel that you don't use for anything else.
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  3. #3

    Default

    Quote Originally Posted by MMW View Post
    You can either buy a tungsten grinder which is most likely best but more money or a cheap bench grinder with a new wheel that you don't use for anything else.
    ^^^ This is what I have now. Is there a best grit or wheel? Bench with a diamond wheel etc....?

  4. #4
    Join Date
    Nov 2011
    Location
    Edmonton
    Posts
    43

    Default

    http://www.diamondground.com/piranha2tungstengrinders.html

  5. #5
    Join Date
    Dec 2008
    Location
    west central Florida
    Posts
    86

    Default

    Quote Originally Posted by ggodwin View Post
    ^^^ This is what I have now. Is there a best grit or wheel? Bench with a diamond wheel etc....?
    Diamond wheels are nice, some shops using grinding wheels will use two grits, a course and fine grit. If you just need to lightly dress the tungsten use the fine grit only.

    Or use a medium to course grit to remove any contamination that might be on the tungsten, or to shape a point on a new tungsten, then use the diamond to put on a nice finish

  6. #6

    Default TIG Tungsten Grinding

    It does depend on how your grinding it, a stone with a fine grit would be better, but try to avoid grinding it with the side of the tungsten towards the stone as the grind marks will cause the arc to be more unstable and sort of spiral off the tungsten where as if it's straight likes with the tungsten front on to the wheel it will have a more stable and controllable cone

  7. #7
    Join Date
    Apr 2009
    Location
    Upstate SC
    Posts
    138

    Default

    Here's what I use, lapidary diamond disks. You need a backing plate, but then you just stick these diamond disks on it. I mounted mine on a motor I already had, but you can use a grinder.
    http://www.ebay.com/itm/New-6-Diamon...item5d2fa98641

    JD
    Old Miller Swinger 180 Buzzbox
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  8. #8
    Join Date
    Apr 2012
    Posts
    16

    Default

    if your using a gringing stone,it should be a fine stone. do not use it for regulr steel or anything else. change stones if you must?
    i notice that you say your welding aluminum. this is done with high frequency a.c.. the tungsten must form a ball .this is because using a.c. the current changes fron d.c.r.p to d.c.s.p. so do not use dc only. ac only without h.f. if your using steel brush to clean the welds, stop using it. use stainless only. this is because stainless will not fall into the weld and mateial as easy as steel. steel is carbon base aluminum is not. the two a diffenent metals,and have to be treated as such.
    the rest is up to you. amps,speed ,arc length.
    one last thing ,when welding aluminum use 100% pure tungsten,also 100% argon gas.. yes all that cost more . if you don't follow the right set up.it will cost a lot in repairs.do it righ,t cost a lot less.

  9. #9
    Join Date
    Nov 2003
    Posts
    2,987

    Default

    Quote Originally Posted by ilm48 View Post
    if your using a gringing stone,it should be a fine stone. do not use it for regulr steel or anything else. change stones if you must?
    i notice that you say your welding aluminum. this is done with high frequency a.c.. the tungsten must form a ball .this is because using a.c. the current changes fron d.c.r.p to d.c.s.p. so do not use dc only. ac only without h.f. if your using steel brush to clean the welds, stop using it. use stainless only. this is because stainless will not fall into the weld and mateial as easy as steel. steel is carbon base aluminum is not. the two a diffenent metals,and have to be treated as such.
    the rest is up to you. amps,speed ,arc length.
    one last thing ,when welding aluminum use 100% pure tungsten,also 100% argon gas.. yes all that cost more . if you don't follow the right set up.it will cost a lot in repairs.do it righ,t cost a lot less.
    If you are using your Diversion 165.. DO NOT use pure tungsten AND.... DO NOT ball it!!!!! disregard that advice.... it is wrong....!!!!

    A 2% ceriated tungsten is recommended ground to a taper 2-1/2 Times
    Electrode Diameter lengthwise...

    Inverter TIG machines require different tung selection and prep...

    refer to figs 9-1 & 9-2 in the owners manual on tungsten...

    http://www.millerwelds.com/om/o232895g_mil.pdf

    Also refer to resources referenced in your previous threads...

    http://www.millerwelds.com/resources...-your-tungsten
    .

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  10. #10
    Join Date
    Feb 2013
    Posts
    1

    Default

    Quote Originally Posted by chewinggum View Post
    Here's what I use, lapidary diamond disks. You need a backing plate, but then you just stick these diamond disks on it. I mounted mine on a motor I already had, but you can use a grinder.
    http://www.ebay.com/itm/New-6-Diamon...item5d2fa98641

    JD
    How long do these last? I would like to use use a course and a fine on a bench grinder I will make a couple backers for them. Can you grind hard on them when you have a lot of trash on a tungsten? Thanks in advace for any info

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