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Tool Talk Discussion Forum

Welding repair on holes: no stick rods?

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1 Dollar

04-01-2008 05:44:16




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I have read in Farm Show about pieces of metal that are used to aid in welding repairs on wallowed out holes. Marketed to help with drawbar holes, bushings, etc. The metal that is used in hte tool is supposed to not melt, and then you just tap it out of the hole when you are done, leaving a perfect circle that all you have to do is grind however you need it.

Anybody know the name of these things? I can't find the old magazine.

Thanks

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Fixing holes

04-03-2008 10:45:25




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 Re: Welding repair on holes: no stick rods? in reply to 1 Dollar, 04-01-2008 05:44:16  
Copper is common for making molds for build up welding but other non ferrous materials will work too. Using a rod like a Stoody build up rod will give a lot better resistance to mushrooming the hole out than a rod like 7018. Check with a good welding supply about what hardfacing rod would be best for a draw bar hole.



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T_Bone

04-03-2008 03:27:55




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 Re: Welding repair on holes: no stick rods? in reply to 1 Dollar, 04-01-2008 05:44:16  
Hi 1Dollar,

You can use copper, aluminum or brass for welding steel holes. I would screw on a oversized plate on one end to hold the rod in place while welding. I would then preheat the hole to over 500ºf before welding as this would help with cold lapp and I would try and weld as long as I could at one time, idealy until the weldment is finished.

If your stick welding and fast change electrodes you will most likey not have to chip slag between rod changes without any worry of slag entrapment.

After welding, as the weld cools to 500ºf(lead melts at 500º) then I would quench the drawbar in oil/water bath until cool as this restores some of the temper that will be lost during welding. A pipe with a end cap would work well for a quench "tub".

T_Bone

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36 coupe

04-01-2008 15:35:46




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 Re: Welding repair on holes: no stick rods? in reply to 1 Dollar, 04-01-2008 05:44:16  
Carbon rods are nice but I have welded up worn drawbar holes with a piece of green wood in the hole.



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mj

04-01-2008 08:05:22




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 Re: Welding repair on holes: no stick rods? in reply to glennster, 04-01-2008 05:44:16  

1 Dollar said: (quoted from post at 06:44:16 04/01/08) I have read in Farm Show about pieces of metal that are used to aid in welding repairs on wallowed out holes. Marketed to help with drawbar holes, bushings, etc. The metal that is used in hte tool is supposed to not melt, and then you just tap it out of the hole when you are done, leaving a perfect circle that all you have to do is grind however you need it.
Anybody know the name of these things? I can't find the old magazine.

Thanks


Forney used to have carbon rods for this. Check at one of their in-store displays or click the link Link or e-mail their customer service at: sales@forneyind.com

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trucker40

04-01-2008 12:22:26




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 Re: Welding repair on holes: no stick rods? in reply to mj, 04-01-2008 08:05:22  
I dont know where you get it,maybe Enco,but brass will work.A big piece of brass like that might be costly.



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TomTex

04-01-2008 06:43:23




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 Re: Welding repair on holes: no stick rods? in reply to 1 Dollar, 04-01-2008 05:44:16  
I have "re-newed" several pull holes on old plows, etc. I use a piece of pipe with the inside diameter hole that I want. Cut it about half inch longer than the thickness of the drawbar. Weld in around it until everthing is filled good. Then grind off excess pipe sticking out, and smooth up all the weld area. You cant even tell its been patched. Tom



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soundguy

04-02-2008 06:29:18




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 Re: Welding repair on holes: no stick rods? in reply to TomTex, 04-01-2008 06:43:23  
I've also use dthat trick before!

and it does produce good results.

soundguy



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RustyFarmall

04-01-2008 07:02:09




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 Re: Welding repair on holes: no stick rods? in reply to TomTex, 04-01-2008 06:43:23  
Tom, I've used that trick myself. Works good.



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guido

04-01-2008 06:17:22




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 Re: Welding repair on holes: no stick rods? in reply to 1 Dollar, 04-01-2008 05:44:16  
Hello 1 dollar
If you are welding steel try a piece of aluminum that is tick enough not to melt.The weld will not stick to it, and will help to close the hole.
Start the weld on the edge and weld around the hole. You keep doing it until the hole is filled.
Guido.



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coloken

04-01-2008 05:52:03




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 Re: Welding repair on holes: no stick rods? in reply to 1 Dollar, 04-01-2008 05:44:16  
Try the carbon center from old dry batteries.



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guido

04-01-2008 06:21:05




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 Re: Welding repair on holes: no stick rods? in reply to coloken, 04-01-2008 05:52:03  
Hello coloken
Do you need the carbon from the dry battery to make the arc work better? PICKY.... PICKY.....
Guido.



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CWL

04-01-2008 06:44:29




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 Re: Welding repair on holes: no stick rods? in reply to guido, 04-01-2008 06:21:05  
The carbon will not melt. You can also use carbon rod designed for arc gouging, but it can be expensive.



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