On Tue, 23 Apr 2013 08:41:46 -0500, Richard
wrote:

On 4/23/2013 7:57 PM, Gunner Asch wrote:
Fella brought over a gun part for a Marlin lever action..he was
missing a pin..so I made one up for him and installed it..and as I was
inspecting it..I noticed a rather serious crack starting to develop at
one end of the sintered metal part. I fixed it by using my tig torch
and silver bearing flux..I packed the crack full of the heavy green
flux and zapped it with the tig..sealed it up well enough and I put a
slight layer over the area of the crack. After polishing it up with a
fine wire wheel, it looked good. But...is it?

How well does this sort of thing work with sintered metal parts?

Should I warn the guy to buy a new Widget? (Marlin just closed their
doors...so parts may become hard to find)

Any suggestions for other similar fixs with sintered metal parts?

Gunner



Which part?

Get an expert involved. High-strength ferrous sintered parts often are
copper-infiltrated.

Don't weld that stuff unless you know what you're doing, especially if
it's a safety-related part.

--
Ed Huntress