The PRR T1 Trust posted a picture of forming their throat sheet on a McCabe Flanger. I was impressed with the setup. Can anyone explain exactly what is going on here? I have never seen this much support for anything being flanged.
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| Unique Setup for a McCabe Flanger https://www.rypn.org/forums/viewtopic.php?f=1&t=46111 |
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| Author: | ted101 [ Thu Dec 16, 2021 2:51 pm ] |
| Post subject: | Unique Setup for a McCabe Flanger |
The PRR T1 Trust posted a picture of forming their throat sheet on a McCabe Flanger. I was impressed with the setup. Can anyone explain exactly what is going on here? I have never seen this much support for anything being flanged.
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| Author: | jayrod [ Thu Dec 16, 2021 4:07 pm ] |
| Post subject: | Re: Unique Setup for a McCabe Flanger |
My guess: Looks like they have a jig suspended from a chain fall so they can rotate the sheet around the head of the flanger. |
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| Author: | Dennis Storzek [ Thu Dec 16, 2021 4:34 pm ] |
| Post subject: | Re: Unique Setup for a McCabe Flanger |
... With the pivot point established in the frame that holds the sheet. |
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| Author: | softwerkslex [ Fri Dec 17, 2021 12:13 pm ] |
| Post subject: | Re: Unique Setup for a McCabe Flanger |
Is that cold flanging? |
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| Author: | Bob Milhaupt steamy [ Sat Dec 18, 2021 10:24 pm ] |
| Post subject: | Re: Unique Setup for a McCabe Flanger |
In the last 10 or so years, the Illinois Railway Museum (IRM) cold-flange both a front tube-sheet patch and a firebox corner patch. No heat was applied during the flanging process. Yes, the T-1 group is likely using thicker boiler plate on account of a higher MAWP, so the McCabe will have to work a bit harder than IRM experienced. During one of those jobs at IRM, I vaguely recall Tom Schneider (Steam Department Curator) stating that the McCabe is capable of flanging 3/4" boiler plate. |
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| Author: | mldeets [ Sun Dec 19, 2021 7:04 pm ] |
| Post subject: | Re: Unique Setup for a McCabe Flanger |
I haven't done anything patently dumb in the last week so I'll take a SWAG at the picture. It looks to me like they have set up a way to keep the radius of the area being flanged constant rather than having only to rely on markings on the sheet. The opinion is worth only what you've paid for it & I have no personal interest (beyond curiosity) in the project.......mld |
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