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Discussion Starter · #1 ·
Hello,

I am new here and also new to AK's. I just received my Polish kit from Global and I have a few questions.

I want to rivet the trunnion in and I have an air hammer. I want to know if it is possible to use the air hammer with a home made bucking bar?

Will the air hammer destroy the receiver? Does anyone have plans for such a bucking bar that would be used with an air hammer?

David
 

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Happy Camper
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You mean THIS:
http://pookieweb.dyndns.org:61129/AK/rivet/boltcutters/boltcutter.htm
:D

Here's another thread with some good info:
http://www.gunco.net/forums/showthread.php?t=645
The air hammer method is what everyone used before plinker's rivet jig. There's a package deal with a video & an air hammer buck suited just for this purpose, check around the forums and you'll find the sale ad.

Just be careful if you choose to air hammer - you are already aware of the potential for damage to the receiver, which is what to avoid. Other than that you should be OK
 

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Discussion Starter · #3 ·
Hi Hcpookey,

Thanks for your links. Some of those tools are just too expensive and some of them look like their designed for aluminum rivets.
I like the Brake rivet tool from Cleveland tool. At $28 that is affordable. It's hard to tell from the photo if it would fit in the trunnion. If it doesn't fit I don't want to grind so much material away that it may be too weak to withstand the necessary pressures involved.

If I use my air tool I wanted to know if anyone else tried it successfully and what design was used for a bucking bar.

I saw your bolt cutter riveter and I am interested in that design as well. My concern was that it may not reach into the rear portion of the front trunnion.
Also, can the blade be ground flat enough to mushroom the rivet without damaging it?

David
 

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Gunco Irregular
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Even though I have a 12 ton press on the way I'm gonna try hcpookie's bolt cutter set up myself. In the pics on his site the rivets look mushroomed and they don't look damaged at all.
BTW I think this site should award folks like hcpookie, with honorary WESCOG doctorates! :cool:
 

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Some have had success using the barrel as a bucking bar. That leaves the bottom rivet on the trunion and the rear trunion rivets. I recently purchased a CD from a guy who has had success with his air hammer. It looks like he does a nice job with it. Jack
 

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Instead of an air hammer, try an air rivetter, if you have access to one. Think of it as an air hammer with variable speed....
 

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I have not used the bolt cutter method,,,, but that looks like a real good idea. custom made tool and plenty of controll, best of all CHEAP .... I LOVE IT :headspin:
 

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Happy Camper
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davidgpo said:
I saw your bolt cutter riveter and I am interested in that design as well. My concern was that it may not reach into the rear portion of the front trunnion.
Also, can the blade be ground flat enough to mushroom the rivet without damaging it?

David
You could do them all with two sets - I had to create a second set due to the shape of the trunion near the rear rivets (not the lower ones). SO... 2 sets = $60. I'm not really sure if you could do all of them with one set. I stopped grinding when the one set fit the front rivets, and didn't want to press my luck. If I had more time/money I'd probably grind another set down to get it "just right", but it works for me as-is.

The blade actually didn't damage the rivet, it damaged the bucking plate I was using to protect the rivet head - 1/4" steel plate with a concave dremeled into it for the rivet head.

The only time I had problem with the blade damaging this bucking plate was when I didn't grind the blade all the way flat... there was still enough taper on the blade to make it act like a dull knife. It did not damage the bucking plate when I ground the cutting edge completely off of the blade.

hth,
- Jerry
 

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Hay Jerry. what size are your bolt cutters??? I see like 12 inch sets for about $10 at a discount store. for $10 I can afford to make an oops without getting too upset. Thies sets will cut anything you can get between the jaws. If I can use this method then I will not need the press at work any more and will be able to do the entire job here in the shop. I like that :)
 

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Happy Camper
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24" cutters. The $15 ones from Harbor Freight. I used 2 sets - $30 total. Actually bought the one set from their sidewalk sale - $10!!!!

12" *may* be too small - I wonder what kind of leverage you can get out that?
 

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Hey hcpookie I'm really interested in trying your bolt cutter turned trunnion riveter idea. Roughly how much time did you spend tweaking it until it you were satisfied with the final product?
 
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