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Thread: Repairing malleable iron
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23rd Oct 2020, 12:03 PM #1Senior Member
- Join Date
- Jul 2010
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- Brisbane
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- 143
Repairing malleable iron
Hi all ...I have these brace jaws that I want to repair.. I assume they are malleable iron.. easily bent and straightened.
What would be the best plan of attack.. make a new part and braze it on.. or build up with either nickel rod or brass ?
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23rd Oct 2020, 11:37 PM #2Golden Member
- Join Date
- Dec 2011
- Location
- Sydney
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- 505
If it's brace chuck jaws you have there, steel is more likely than cast iron, in which case some sort of welding would be in order.
A traditional approach may be forge welding (think blacksmithing), though I wonder if those jaws would be too small for that.
I have not seen brace chuck jaws with holes in them - were they modified for special work?
Bill
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24th Oct 2020, 07:40 AM #3Senior Member
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- Jul 2010
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- Brisbane
- Posts
- 143
The small hole is for the spring to pass thru.. the larger had a stepped pin ...presumably for alignment.
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24th Oct 2020, 08:54 AM #4Senior Member
- Join Date
- Oct 2015
- Location
- melbourne
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- 473
If it was me, I'd just build up with braze, then shape.
Maybe a Nickel bronze rod.
Too small for me to even think about forge welding, that needs a good overlap not a but weld.
Tig with the right filler maybe?
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