An Interesting Failure

[blriehl]

Just a material defect, and this kind of stuff happens. But it is kinda interesting -

http://i1277.photobucket.com/albums/y491/feral45/Gunsmithing/20140905_151355_zpsnevyzyjl.jpg (http://s1277.photobucket.com/user/feral45/media/Gunsmithing/20140905_151355_zpsnevyzyjl.jpg.html)

http://i1277.photobucket.com/albums/y491/feral45/Gunsmithing/20140905_151409_zpsbqb9mjwz.jpg (http://s1277.photobucket.com/user/feral45/media/Gunsmithing/20140905_151409_zpsbqb9mjwz.jpg.html)

http://i1277.photobucket.com/albums/y491/feral45/Gunsmithing/20140905_135306_zps6u1mcyrj.jpg (http://s1277.photobucket.com/user/feral45/media/Gunsmithing/20140905_135306_zps6u1mcyrj.jpg.html)

Note the locking surface set back? It's about 0.003"

Good thing it wasn't continued to be shot. We are going to build up the area with a high nickel stainless filler, then remachine it to save the slide.

[Heavy Metal]

What kind of slide is that?

[SeriousStudent]

Holy cow!

Is that due to some sort of subsurface voids in the metal?

[mrvip27]

What kind of slide is that?

ditto

[lunchbox]

Porosity in the casting cause this?

[KentuckyWindage]

Looks like a Glock 34 or 35?

[glocktogo]

I was thinking Springfield XDM?

[mizer67]

Looks like a 34/35 slide with a lot of custom work.

[mtdawg169]

Looks like a Glock 34 or 35?


Looks like a 34/35 slide with a lot of custom work.

Unpossible! Glocks are perfect. ;)

What's odd to me is that it appears to be a uniform color where the material sheared away. I would have thought it would be more silver in color below the surface of the metal.

[RWCRaiden]

That came from the factory like this?

[G19A3]

What manufacturer/model is this atrocity from??

It looks literally melted.

[The Dumb Gun Collector]

I believe that is another example of Glock perfection.

[thopkins22]

I believe that is another example of Glock perfection.

Looks to me like the reasonably priced folks at Assailant Arms f-d up royally while destroying this man's slide, and tried to add filler with welding never expecting it to be actually used. :laugh: The way it failed is just too weird.

[The Dumb Gun Collector]

It looks like they turned it into hi-point worthy pot metal.

[TacticalMark]

Looks like a lightened Glock slide. Who did the coating?

[thopkins22]

It looks like they turned it into hi-point worthy pot metal.

Haha, maybe not even. Glock isn't the end-all and be-all...but this is not the kind of failure that they get shy of a one in a billion lemon. I mean that's just freak.

If it is indeed a material failure of the slide, then it's a great example of why we demand the testing protocol that goes into AR bolts. I wouldn't read too much into it other than Glock until recently has been making guns hand over fist faster than they ever have and more things were slipping through the cracks even now that the Maytag man is gone.

[Chiral]

Just curious but with a material failure like that why try to repair and not send back to the glock factory for replacement. Unless it's a because we can reason then I understand :)

[halmbarte]

Just curious but with a material failure like that why try to repair and not send back to the glock factory for replacement. Unless it's a because we can reason then I understand :)

With all the cuts on the slide it's probable he's voided any warranty he had.

H

[Chiral]

Did not consider that. Will be interesting to see how the filled in slide defect will perform!

[Knightsofnee]

If anybody is interested, I found OP's original thread on pistol forum, under autoloaders, through hardening thread.

[Shao]

I don't see any possible way that that could happened to a machined or forged slide - it looks cast to me. I would be pissed.

[Texaspoff]

Just a material defect, and this kind of stuff happens. But it is kinda interesting -

http://i1277.photobucket.com/albums/y491/feral45/Gunsmithing/20140905_151355_zpsnevyzyjl.jpg (http://s1277.photobucket.com/user/feral45/media/Gunsmithing/20140905_151355_zpsnevyzyjl.jpg.html)

http://i1277.photobucket.com/albums/y491/feral45/Gunsmithing/20140905_151409_zpsbqb9mjwz.jpg (http://s1277.photobucket.com/user/feral45/media/Gunsmithing/20140905_151409_zpsbqb9mjwz.jpg.html)

http://i1277.photobucket.com/albums/y491/feral45/Gunsmithing/20140905_135306_zps6u1mcyrj.jpg (http://s1277.photobucket.com/user/feral45/media/Gunsmithing/20140905_135306_zps6u1mcyrj.jpg.html)

Note the locking surface set back? It's about 0.003"

Good thing it wasn't continued to be shot. We are going to build up the area with a high nickel stainless filler, then remachine it to save the slide.

If you look at the first picture there is a distinct edge on the ejection port side, where the metal began to fail, and compress. There is parent slide material in that area that did not deform. My guess is someone screwed the pooch big time doing some kind of work to that area of the slide. They then attempted to fill in that area to repair it. Unfortunately, what ever was used was not hardened and thus failed due to impact from the barrel hood. I don't believe it is metallurgy or casting defect, it was caused by something or someone else. To add Glocks slide are not cast, they are machine from solid stock, and that small pocket should have been caught before the machining process was finished and the slide trashed. The small pocket in that area is an indication that the material there was melted and had an air bubble. Whats disturbing is the pocket was there when the finish was applied and no one caught it, or cared. Personally I would follow up with whoever did the work and work out a replacement. Either way that slide would be a fishing weight in my book. It does resembles Salients work, but there is something that keys me in that it may not be theirs.

TXPO

[mtdawg169]

If anybody is interested, I found OP's original thread on pistol forum, under autoloaders, through hardening thread.

Just read it. GLOCK slide and the damage manifested while the slide was being sandblasted.

[G19A3]

BTW, that finger needs a wax treatment or a string trimmer. Never seen hair like that on a finger.:)