General welding questions that dont fit in TIG, MIG, Stick, or Certification etc.
Welding drill rod
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delraydella
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What is the best process/way to weld water hardening drill rod to 1/4 " plate steel? The drill rod is 1 and 7/8ths inch diameter. I'm using it for a turntable pivot point, there will be a lot of torque on the pivot point..... I would normally machine a sleeve for the rod to slip in and bolt into and then weld the sleeve to the floor plate, but I don't have enough clearance to get a good sized sleeve in there this time...
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Rick_H
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I know a few things hopefully more will chime in..

Its basically tool steel so it will need a preheat, post heat and anneal or it will be very brittle. Do you know what grade it is? W1 or O1?

IMO- not worth the chance of an issue, Id choose a different material.
I weld stainless, stainless and more stainless...Food Industry, sanitary process piping, vessels, whatever is needed, I like to make stuff.
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Anneal the end to be welded. Heat it reddish and let it slow cool in air. Then Pre heat and 309/312 ss rods.
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delraydella
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Thanks!!!

I'm not sure what he grade is, I'd have to go back and check the paperwork.... But, since it sounds like if I don't do this exactly right there is too much room for a major eff up, so I think I need to find a different material. There is a lot of torque on this pivot, I can't take the chance of it breaking.... once installed, it's in a major PITA place to get to.

Thanks!!!
Welding☞Syncrowave 250,Millermatic 252,30a Spoolgun Cutting☞12" Hi-speed Cutoff Saw, 9x 12 Horizontal Bandsaw Milling☞Gorton 8d Vertical Mill Turning☞Monarch EE Precision Lathe Grinding ☞Brown & Sharpe #5 Surface Grinder
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http://www.interlloy.com.au/our-product ... steel-bar/ This looks a good option.
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delraydella
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That would work just fine. Thanks Mick!!
Welding☞Syncrowave 250,Millermatic 252,30a Spoolgun Cutting☞12" Hi-speed Cutoff Saw, 9x 12 Horizontal Bandsaw Milling☞Gorton 8d Vertical Mill Turning☞Monarch EE Precision Lathe Grinding ☞Brown & Sharpe #5 Surface Grinder
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No worries cobba. Not sure if its called the same thing in the US.
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