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Re: ST-437 Swedge Cutter [Re: moparx] #2913915
04/23/21 01:24 PM
04/23/21 01:24 PM
Joined: Mar 2011
Posts: 1,651
Cut and Shoot, TX
kentj340 Offline
top fuel
kentj340  Offline
top fuel

Joined: Mar 2011
Posts: 1,651
Cut and Shoot, TX
Bashes with a BFH put the kabosh on it. hammer

Thanks!

IMG_1202 (2).jpg

If you don't see two dolphins, you need a vacation.
Re: ST-437 Swedge Cutter [Re: GomangoCuda] #2913965
04/23/21 03:34 PM
04/23/21 03:34 PM
Joined: Jan 2003
Posts: 25,618
Rio Linda, CA
John_Kunkel Offline
Too Many Posts
John_Kunkel  Offline
Too Many Posts

Joined: Jan 2003
Posts: 25,618
Rio Linda, CA
Depends on the capacity of your chuck, I have a chuck that will grab the hole saw with no arbor. For smaller chucks, just remove the pilot.


The INTERNET, the MISinformation superhighway
Re: ST-437 Swedge Cutter [Re: John_Kunkel] #2930431
06/06/21 02:41 AM
06/06/21 02:41 AM
Joined: Mar 2011
Posts: 1,651
Cut and Shoot, TX
kentj340 Offline
top fuel
kentj340  Offline
top fuel

Joined: Mar 2011
Posts: 1,651
Cut and Shoot, TX
The broken off 7/16" stud (A-body) could be pressed down in my 12-ton press only about 1/8", which is the thickness of the brake drum. It still would not press out of the hub. So I center drilled it with a drill bit 1/32" under 7/16, and it finally came out top photo. I ordered a new brake drum, because the old one is ruined by this process, and besides, I had bent the face of the drum with my press before I learned about the swages.

So then I pressed the hub with the remaining 4 good studs out of the old brake drum by supporting the drum underneath with wood blocks. The 4 good studs had their shoulders cut down to barely below the surface of the drum. By placing the hub on the new drum in a test fit, I could see the splines on the stud shoulders are going to seat nicely into the new drum when the lug nuts are tightened. But I sure ain't gonna swage 'em to the new drum.

Made a fixture for pressing out the remaining 4 studs from the hub using 3 pipe nipples from the junk pile, 2nd photo. Grinding a bevel on one side allowed them to fit the hub with almost full bearing, 3rd and 4th photos.

Note in the 4th photo that the shoulders of the studs are above the top surface of the hub approximately the thickness of the brake drum.


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If you don't see two dolphins, you need a vacation.
Re: ST-437 Swedge Cutter [Re: kentj340] #2930432
06/06/21 03:07 AM
06/06/21 03:07 AM
Joined: Mar 2011
Posts: 1,651
Cut and Shoot, TX
kentj340 Offline
top fuel
kentj340  Offline
top fuel

Joined: Mar 2011
Posts: 1,651
Cut and Shoot, TX
Just like the broken stud, the other 4 studs could be pressed down about 1/8" only and no more, 1st photo showing the top of the shoulder stuck flush with the surface of the hub.

Measuring the broken stud, the diameter near the head was 0.555" per spec, but at the very top of the remaining shoulder it was .003" greater indicating a burr remaining from the swaging. This burr is big enough to prevent the other studs from being pressed out.

Using a triangular file, I beveled the shoulders a bit, just enough to remove the burr, 2nd photo, and it worked. They all came out with no damage to the hub. They or new ones can can be pressed back in the hub with a tight fit, as original.

So after cutting off the swaging, the final task in this process to get the studs out of the hub without damaging the hub is to file off the burr on the top of the shoulder.

If you cut the swages all the way through the old drum down to the hub, then what you'll end up with is 7/16" studs in a new drum with 0.555" holes, a sloppy fit. But if you stop cutting the swages at the outer surface of the brake drum and then press out the hub, what you'll end up with is 0.555" splined shoulders righteously seated in 0.555" drum holes, a better solution in my opinion.


IMG_1431 (2).jpgIMG_1427 (2).jpgIMG_1430 (3).jpg

If you don't see two dolphins, you need a vacation.
Re: ST-437 Swedge Cutter [Re: kentj340] #2930438
06/06/21 07:09 AM
06/06/21 07:09 AM
Joined: Mar 2006
Posts: 9,791
MI, usa
dvw Offline
master
dvw  Offline
master

Joined: Mar 2006
Posts: 9,791
MI, usa
People may laugh but the 9/16" hole saw without a pilot worked fine on my 67 Jeep for 1/2" swedge cuts.
Doug

Re: ST-437 Swedge Cutter [Re: markz528] #2947337
07/26/21 01:24 PM
07/26/21 01:24 PM
Joined: Jul 2012
Posts: 1
Spring Valley, California
S
sdmopar Offline
member
sdmopar  Offline
member
S

Joined: Jul 2012
Posts: 1
Spring Valley, California
Are you still making these?

Re: ST-437 Swedge Cutter [Re: sdmopar] #2947400
07/26/21 03:20 PM
07/26/21 03:20 PM
Joined: Sep 2003
Posts: 19,237
north of coder
moparx Offline
"Butt Crack Bob"
moparx  Offline
"Butt Crack Bob"

Joined: Sep 2003
Posts: 19,237
north of coder
in a pinch, i have used a deep 9/16" hole saw in the drill press.
beer

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