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How to create a hard edge to your steel.

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Steviegtr26/09/2020 22:27:25
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1499 forum posts
163 photos

Hi guys & gals. I just watched Old Tony on youtube trialing some tool steel tig welding rods, with quite amazing results.

I have a Tig welder as i guess a lot of you folks have too. Well worth a watch.

Steve.

Creating a tools steel edge to soft steel.

not done it yet27/09/2020 09:32:57
5016 forum posts
20 photos

I’ve used umpteen kilos of hard facing rods in the dim and distant past. I’m guessing they would be too brittle for shock loading?

Some engine valves were stellite faced - biggest problem I’ve had with those is the whole head dropping off! Not sure if that was hard valves running on hardened seat inserts, but it was a problem with one make of engine. Always the risk that the insert fell out first, I suppose.

A couple of pics of the valve head.

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It started out at about 2 1/8“/2 3/16” diameter, IIRC. It bounced around for a while....

I know one fellow that removed what appeared to be a ball bearing from the combustion chamber of an engine which was run for some time (probably an hour or hours) after the valve dropped in. Engine was considered scrap on that one. My engine was repaired and is still in running condition.

Nick Clarke 327/09/2020 10:00:21
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884 forum posts
30 photos
Posted by not done it yet on 27/09/2020 09:32:57:

I know one fellow that removed what appeared to be a ball bearing from the combustion chamber of an engine which was run for some time (probably an hour or hours) after the valve dropped in. Engine was considered scrap on that one. My engine was repaired and is still in running condition.

I ran a Ford Anglia van which wrecked its engine after a ball bearing fell out of one of those tyre pumps you used to be able to get that screwed into a sparkplug hole. Moaning to the guy I worked a bit for at the garage and he reckoned it was not uncommon. That one was repaired and ran until the next MOT wrote off the van.

Ady127/09/2020 10:22:14
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3859 forum posts
522 photos

Looks pretty useful for various applications

old mart27/09/2020 18:23:28
1991 forum posts
151 photos

Thats exactly how stellite was used.

ChrisB27/09/2020 19:02:52
548 forum posts
192 photos

I wonder where he got his rods from, he sounds like he's from the US, but some products he uses look Italian.

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