I've had laser microwelding done before and I am always amazed when the part is returned. Here's one of the trigger sears from a Fox-Kautzky single trigger, but really this type welding is applicable to any similar single/double trigger sear. Someone had worked on it before ..... probably to lighten the pull, he went too far, then overcompensated a time or two. Then the single trigger didn't work and the hammer was cocking short which happens when the nose of a sear is shortened too much. Kind of like trimming one leg on a table to get it level, then another one, etc etc and soon the table ends up way too low.
Anyway the nose of this sear was too short. A friend had this work done by one of the welding techs at his business. I asked that 40-50 thou be added to its length. I sent it out Tuesday and the UPS guy returned it today. The weld filler is air hardening tool steel which is much too hard to file (as it should be in this application). Now I'll grind to original shape and then to length when I fit it to the hammer.
I am not soliciting work with this post, and my friend is not in the gunsmithing business and he absolutely will not accept any laser welding "commissions" from anyone else. Please don't ask. This post is just to show what can be done with modern welding. That weld is only about .010" above the top and bottom surfaces of the sear.
Frank
BEFORE ----- I added the red arrows to this pic to show where to weld
AS RETURNED
SUPERMACRO
This always amazes me
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