JRSTech
Plastic
- Joined
- Mar 2, 2002
- Location
- Hamilton, ON,, Canada
Has anybody in the group had any experience tig welding a broken front sight off a rifle?
The sight is removable via a dovetail/screw and is black oxide treated. The top section broke off almost flush with the base. As far as i can tell, it is a magnetic metal but appears to be investment cast or malleable iron or some other weird sh~^! I have attached the two components with a couple of spot welds on either side using 308L stainless, but it was like welding to an oil soaked sponge! Lots of smoke. Perhaps the parts have to be preheated to burn off what appears to be either oil or the black oxide compound that is soaked into the metal. The surfaces were ground and cleaned with alcohol before I spot welded. I now need to complete the weld with a full length small fillet on each side but am looking for advice before I continue or destroy the part. Any help is appreciated as always.
The sight is removable via a dovetail/screw and is black oxide treated. The top section broke off almost flush with the base. As far as i can tell, it is a magnetic metal but appears to be investment cast or malleable iron or some other weird sh~^! I have attached the two components with a couple of spot welds on either side using 308L stainless, but it was like welding to an oil soaked sponge! Lots of smoke. Perhaps the parts have to be preheated to burn off what appears to be either oil or the black oxide compound that is soaked into the metal. The surfaces were ground and cleaned with alcohol before I spot welded. I now need to complete the weld with a full length small fillet on each side but am looking for advice before I continue or destroy the part. Any help is appreciated as always.