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BLR
07-13-2012, 06:36 AM
The other day with a project Delta Elite. Specifically, a carbon steel Delta Elite from "Colt's Dark Days." One of the things this had wrong with it was horribly roughly cut frame rails. It looked like they were cut with a wood rasp. Not to mention, the slide to frame fit was just abysmal.

So I fired up our firms laser welder (purchased for a project with AFRL) to see if things could be fixed. Here is the result:

http://i390.photobucket.com/albums/oo345/blriehl/Weldedrail.jpg

http://i390.photobucket.com/albums/oo345/blriehl/Weldedrail2.jpg

Now a few things are worth mentioning -
1. Notice the lack of excessive heating? That's the main advantage of laser welding over, say TIG welding. A jewelers laser welder would likely not have the "butt" needed to get sufficient penetration.
2. A unique filler rod material was chosen (mostly for fun) that has a very low coef. of friction, and much better wear resistance than a simple 4xxx series filler rod. The rod was developed for mold work.

Next is the grinding of the rails.

Cheers!

JV_
07-13-2012, 06:45 AM
Interesting. I'd like to see the finished product.

jstyer
07-13-2012, 07:19 AM
As would I!

JM Campbell
07-13-2012, 09:33 AM
So would I. Keep the pics and info flowing sir.

Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

LittleLebowski
07-13-2012, 10:07 AM
I love threads like this. Any "before" pics?

orionz06
07-13-2012, 10:10 AM
I should send you an M&P barrel to build up for me.

Corlissimo
07-13-2012, 10:56 AM
While I know nothing about that gun, the welding aspects are near & dear to me. Having been a welder for 20 years (in my past life) I used to TiG weld DE razor blades (lap joint) as a personal test every 3 months or so. Do you know how many joules you input during those passes? Just curious. :)

BLR
07-13-2012, 12:17 PM
The laser is capable of 5mW to 1500W. Its a ND-YAG system.

Will keep posted, unfortunately no "before" pics...