For an interesting article on these interesting devices click on the link:
Kirby's Canopy
ddg14@msn.com
| Railway Preservation News https://www.rypn.org/forums/ |
|
| Kirby's Canopy *PIC* https://www.rypn.org/forums/viewtopic.php?f=1&t=3524 |
Page 1 of 1 |
| Author: | Allan [ Thu Jul 18, 2002 9:05 am ] |
| Post subject: | Kirby's Canopy *PIC* |
For an interesting article on these interesting devices click on the link: Kirby's Canopy ddg14@msn.com |
|
| Author: | David Ackerman [ Thu Jul 18, 2002 3:41 pm ] |
| Post subject: | Re: Kirby's Canopy |
Your madrel and collar are truly beautifull to behold. One question however. In the process of spinning, do you use a flat sheet of brass then wrap it around the mandrel, spin it into form , and then somehow join it, (solder and polish, say?) or do you sonehow start with a fully closed circle, say a cylindrical piece? Sincerely, David Ackerman P.S. keep up the good work. Your restored cars truly look spit and polish. david_ackerman@yahoo.com |
|
| Author: | Allan [ Thu Jul 18, 2002 4:02 pm ] |
| Post subject: | Re: Kirby's Canopy |
I'm not actually involved with the project - Just passing on the info about it to all who might be interested. But, the info I have on the metal spinning process is as follows: A piece of sheet metal cut to the required diameter is mounted to the front of a mandrel that duplicates the inside contour of the required finished part. This mandrel, with the sheet stock attached to the front, is mounted in a lathe. While spinning, the sheet stock is continuously formed around the pattern mandrel by using a small roller or hand tool to force the sheet metal against the pattern mandrel. Allan ddg14@msn.com |
|
| Author: | Bob Yarger [ Fri Jul 19, 2002 12:58 pm ] |
| Post subject: | Re: Kirby's Canopy |
My experience at metal spinning is limited, but I suspect the "globe" shape (open st both ends) is first spun as a "cup" shape, then the bottom is cut out with a parting tool as the last step of the spining process. The segemented mandrel is then removed by first taking out the center core, then the individual rounded segments. > I'm not actually involved with the project - > Just passing on the info about it to all who > might be interested. But, the info I have on > the metal spinning process is as follows: > A piece of sheet metal cut to the required > diameter is mounted to the front of a > mandrel that duplicates the inside contour > of the required finished part. This mandrel, > with the sheet stock attached to the front, > is mounted in a lathe. While spinning, the > sheet stock is continuously formed around > the pattern mandrel by using a small roller > or hand tool to force the sheet metal > against the pattern mandrel. > Allan ryarger@rypn.org |
|
| Page 1 of 1 | All times are UTC - 5 hours [ DST ] |
| Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |
|