NS Dev
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| posted on 9/1/07 at 11:43 AM |
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Welding Rods/Wire for EN24???
following on from my thread on suitable steel for splining and welding.........
what rods/wire can I use to weld EN24T??
I'd love to be able to use std mild steel MIG wire, mainly because my TIG machine is not very portable (under a big bench and hard wired in, and
the torch cable ain't going to reach the lathe where the shaft will be welded!!!! )
Failing that it'll be out with the stick welder, in which case, what rods do I need to buy to weld EN24T??
I'm guessing low hydrogen rods of some sort or austenitic jobbies, but can somebody with some knowledge tell me more??
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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Nick Skidmore
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| posted on 9/1/07 at 12:19 PM |
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I have very successfully welded EN24T drive shafts with stainless filler.
The best way was a tig root with 316 rod followed by 316 stick on DC (much cleaner than AC).
The shafts I have done were in 7/8" and 1" dia 24T on hillclimb cars with good traction (less than 2 secs for 64ft ie more than 1g accel,
with tyre warming etc.) and they handle over 200hp and last for several years.
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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NS Dev
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| posted on 9/1/07 at 12:24 PM |
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Ok, looks like I may have to "facilitate" moving the TIG then!!
Looks like I need a 60 amp extension lead!!!
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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Wadders
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| posted on 9/1/07 at 06:31 PM |
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It would be a good idea to preheat EN24T to a couple of hundred degrees or so before welding, IIRC we used to use lo-hi rods pre baked to about 300
degrees for an hour or so. Also agree with Nick about the 316. Personally would not trust MIG on alloy steels, it has a tendecy to crack. if your
really worried you can probably get filler material specific to EN24T, although prolly not cost effective for you.
Might be worth posting the question on here
http://www.ukwelder.com/forum/
Al
Originally posted by NS Dev
following on from my thread on suitable steel for splining and welding.........
what rods/wire can I use to weld EN24T??
I'd love to be able to use std mild steel MIG wire, mainly because my TIG machine is not very portable (under a big bench and hard wired in, and
the torch cable ain't going to reach the lathe where the shaft will be welded!!!! )
Failing that it'll be out with the stick welder, in which case, what rods do I need to buy to weld EN24T??
I'm guessing low hydrogen rods of some sort or austenitic jobbies, but can somebody with some knowledge tell me more??
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NS Dev
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| posted on 9/1/07 at 06:43 PM |
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cheers folks.
its a pretty big job to get the tig near the lathe (as in pulling down 10mil cable from the roof beams in the garage or making a temporary 10 mil
lead) so I think the good old Pickhill Bantam is coming out, it'll be nice to use the stick machine again for once!!!
I'll follow the advice and get some 316L rods, and do a practice run or two on some big vee grooves in some scrap in the lathe.
Sorted my "rotowelder" (my brother turning the chuck VERY slowly!!)
Won't be able to do the TIG root pass but the whole shaft is a bit OTT anyway so it should be ok, and I will give it a good preheat with the
propane first.
thanks again
Nat
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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gazza285
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| posted on 10/1/07 at 05:45 AM |
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316L ok, or 312 dissimilars might be better. I'd not bother with LoHi rods for this aplication, purely because they are a bitch to use over
short distance.
If the workpiece is in the chuck and you are welding it, I hope you have a direct earth as earthing through the bearings will ruin them very
quickly.
Once had the selector fall off a Bantam, had to find it in the oil, for some reason people gave me a wide berth the rest of the day........
DO NOT PUT ON KNOB OR BOLLOCKS!
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NS Dev
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| posted on 10/1/07 at 08:11 AM |
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Hi Gazza!!
Yep, will have the earth clamp straight to the lump I'm welding, the cable twists up easily enough to give me 1 turn.
I'll see what my welding place has in stock in terms of rods.
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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NS Dev
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| posted on 11/1/07 at 09:17 AM |
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ahhh 312 dissimilars on the shelf at work.....prob solved (got 316 too but 312 seems the concensus! )
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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