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#1
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has anyone on here had any rivetting work done on a carrier if so how long did it take and what was done? as i have just taken one of my hulls away for rivetting so all i can do is sit and wait, its a nervous feeling as hope he gets it right ive marked the holes gave him photos and original parts with rivets still in,guess its out of my hands now just got to wait to hear from them will post sum photos soon as i have it back.
martyn |
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#2
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Hello Martyn
I have been doing some hot rivett work on some cmp chassis today Farming that job out i will now say you have dodged a bullet It is a pain in the rear not using high impact air hammers or high compression dies this job tends to be quite tedious as the heat dissapates very quickly from the rivets soon after coming out of the forge ![]() We found today that it was quicker and neater using an oxy set ,heating ,driving 2-3 times then reheating heads then repeating the process till a good head was formed we had a solid dolly with rivett head pattern in the end to hold the rivett in place and a hardenned bar with the same pattern in the end struck with a large hammer for the forming with the use of high impact hammers from either side (where possible ) the job would be a lot quicker i would think
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Have a good one ![]() Andrew Custodian of the "Rare and Rusty"
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#3
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I believe that apart from forming a tight head, the shank of the rivet should be swelled to fill the hole it passes through. Heating the whole rivet would be essential so bear that in mind if you're trying to use Oxy. The M3 Lee and Grant riveted hulls were squeeze riveted as far as I've been able to find out. And I can speak with personal experience that those rivets swelled.
While not particularly relevant in this thread on Carriers, I'll mention that the holes in the M3 Medium angles seem to be slightly larger than the holes in the plates, so pushing from plate side toward angle side is essential during removal. Regards Alex |
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#4
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Thats correct
Not too much of an issue on chassis for there was still enough heat to swell the rivet being mostly 1/2 inch or under diameter Bit different story with amour and thicker plate definately recomend whole heating and air hammers from either side
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Have a good one ![]() Andrew Custodian of the "Rare and Rusty"
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#5
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Hi thanks for your replys ithink ive done the right move by the sounds of it think if it was one or two rivets oxi would be ok but a whole carrier then the other one
the chap uses 2 air hammers but not a forge its like a small box made from fire blocks and a big blow torch head and they heat one at a time iam looking forward to watch it being done. will keep you informed on how its going when he starts it cheers martyn
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#6
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See if you can take some pictures!
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Model U.C. NO-2 MK II.* SERIAL 25680 HULL 24699. LOWER HULL 24742. ENGINE TL-26707-F. C.D. 2609. BUILT MAR. 25, 1944. CT 266677 Former WASP |
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#7
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Hi had a quote back from the rivetting chap sounds like hes a bit of a rip off merchant so back to plan A were doing it! have found some tools and we are making some sample plates to practice on then if were happy bite the bullet and crack on. will take photos as were doing it and post them soon should be under way in a couple more weeks.
cheers martyn
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#8
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I have a C.P.gun like this.
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Bluebell Carrier Armoured O.P. No1 Mk3 W. T84991 Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6. Dodge WC55. 37mm Gun Motor Carriage M6 Jeep Mb #135668 So many questions.... |
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#9
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A "Pre-owned Chicago 'C' Frame Air Riveter Model 450"
http://www.alexdavisassoc.com/print/...-9615_page.htm I haven't looked to see what the capacity if the riveter is, but it looks like a hefty piece of kit. |
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#10
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Ammunition reloading presses have all sorts of deflection problems to bear in mind. A simple cheap C-press will be fine for very light duty steps, but to do heavier more crunchy steps, the only ones worth using have 2 guides bars and form a letter H. Something to keep in mind if you are going to fabricate a rivetter of your own.
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Terry Warner - 74-????? M151A2 - 70-08876 M38A1 - 53-71233 M100CDN trailer Beware! The Green Disease walks among us! |
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#11
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My friend riveted his carrier with a air hammer made by Power Fist for $40 It weights 6 LBS an comes with an assortment of tools of whitch you can convert one for round head rivets You need a helper to hold the back side with a heavy bar ,shaped to fit a round head rivet while the other end is hammered .This is a light tool ,will get into tight places and don't take much air George
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George is hooked on OD 5 window DT969 8 ton Fruehauf trailer M2A1Halftrack ,CMP #11 F15A1 #13 F15A1 RAF Fordson Tractor, 42 WLC HD No.2MK11 CT267514 center CB24713 bottom hull25701 ,No.2 MK2 parts MK1 10128 ,(2) MK1 ,Parts Hull9305 .Hull 10407 Hull plate # 7250 all have walk plate on back steps 1917 Patent modle amphibious army tank |
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