#21
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For my purposes in confined spaces, swinging a hammer is hard on the knuckles - . Long ago I learned of a way to deliver the blow of a 16oz ball pein in tight places, accurately on target every time, and one hit at a time. - And I could select the driver from a selection on hand - chisel, flat punch, taper punch, hammer face, angled blunt chisel - rather than making a chisel or a punch into the driver I needed, and having to hold that in place, and swinging the club at the end of that- while delicately held by thumb and forefinger .... ... up in that tight corner. (Don't want to miss too many times.... ) I moved on.... to the "one shot rivet gun." And acquired a fistfull of driver implements. Look them up. Not cheap, and many leak and hiss. Be sure to get the retainer spring - look at the size of that spring and you'll have a good idea of how hard it can hit . Without that spring on there, the driver can launch into next week... ( I have 3 of them, just so I won't be without... ) ps, call my old friend David Dent, Dent Aviation, Camden Airport - he will know where some surplus aviation tools are...
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Kent http://www.tinmantech.com "All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919. Last edited by crystallographic; 02-24-2016 at 07:46 PM. |
#22
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I cropped one photo enough to leave the designation showing on the tool - "Renshape 5166." It is a machinable material, though I suppose they also have a designation for a mix-and-pour material of similar usefulness...."tooling epoxy." Ren is now owned by CIBA- Geigy so you have to look there for their product line, unlike years ago when we ordered "bowling ball" compound directly from Ren.
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Kent http://www.tinmantech.com "All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919. |
#23
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Thanks for the post Kent, interesting stuff!
I've been wanting to get into flow forming for a while, and picked up a used APT LSRR-600 6X from Ebay. It works well but the seller didn't have a retainer spring for me, so I ordered a standard one for .498 shanks from the Yard store, but the darn thing won't fit ! Anyone know what type retainer spring this gun takes perhaps? I guess the tool is too old to find a manual online, I didn't have luck with that .
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Ward the Wokbeater |
#24
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Glad you liked the info. I have an interesting FF job in here now that I will try to foto, but once I get to flowing it is hard for me to stop...!
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Kent http://www.tinmantech.com "All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919. |
#25
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Interesting thread, I always thought the 'X' referred to the length of the snout of the rivet gun, 6X being able to reach deeper than a 4X kinda thing.
I don't suppose that die holder is commercially available is it? Along with those dies? Thanks, Oj I've always wondered if anybody has used one of those 'gooseneck?' rivet guns in a planishing hammer type rigid frame?
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oj higgins |
#26
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My APT 6 takes the same retainer spring as an Ingersoll AVC27. I think the Yard Store has those in stock.
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Kent http://www.tinmantech.com "All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919. |
#27
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Rivet gun "X" designation = diameter of the rivet in 1/16"dia. it will shoot/set. 2X = a gun that will set a 1/8" dia hard/heat treated/2117 alloy aluminum rivet. But some guys use a bigger 3X - and just use fewer hits when setting it. i.e. "brrraaaaaaaaaaappppp" with a 2x versus a "brraaapp" with a 3x. (or a brrp with a 4x - but you have to have a serious trigger and a trigger finger...!) Story goes that in the National Aircraft Riveting competition (1946), where Boeing, Douglas, Northrop, Lockheed, North American, Ryan, Convair, Bell etc all sent their guys ... the winner was a tech from Northrop, using a gooseneck oversized gun with a slicked-up trigger. 100% on all rivets, and more than anyone else in the 3min? timeframe. For flow forming .040 3003 and some 20 ga soft steels, a 4X will do the job, depending on your die/insert material. I use 4x, 5x, 7x, 9x and even bigger for flow forming the various parts that come in to my shop. Yes, we offer the tooling for flow forming - http://www.tinmantech.com/html/flow_forming_tool.php And the inserts for the alloy and thickness - http://www.tinmantech.com/html/flow_forming_inserts.php Yes, some of the large gooseneck-handled rivet guns have been used in "punishing hammers" .... I know because I set some up and sold them.... I have some guns going to 24X and a 36X - I call them "bridge riveters."
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Kent http://www.tinmantech.com "All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919. |
#28
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Flow Forming Shenannigans (recent)
Over the summer I hosted a few itinerant metal bipeds now and then, in order to help them sharpen the one or two skills I can help with.
One such Oregonian character came via a Mr. Leeds ... https://www.facebook.com/TM-Technologies-190948948689/ (courtesy: TinMan Metal Camp, Badger, Kalifornya)
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Kent http://www.tinmantech.com "All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919. |
#29
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Ken, Do you ever host any workshops in the east?
NY State, western PA? tks ed
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Ed "To Be or To Do" John Boyd |
#30
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Richard "I know nothing. I from Barcelona" (Manuel - Fawlty Towers) Link to our racecar project https://www.facebook.com/pages/Elan-...ab=public&view |
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