Home |
Search |
Today's Posts |
|
Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to rec.crafts.metalworking
|
|||
|
|||
Reposting due to mess
Wow! Don't know what is happening to this forum. But am reposting in hopes
of getting some help: I've been away from the craft for way too long. Have a chance to play in a new project that will involve swaging one inch tubing - starting with prototypes, of course, then hopefully moving to high volume. This will involve taking random lengths of one inch galvanized thin wall tubing, cutting to three ft. segments, swaging one end for nice snug fit, then drilling to place a spring return locking button. I'm game to do it myself, but also game to let somebody who really know their business tackle the project. We're in San Diego. Any ideas will be more than welcome. And yes, Tijuana is an option but I'd rather start the project here knowing full well that once full production gets moving it will end up in China. Thanks! |
#2
Posted to rec.crafts.metalworking
|
|||
|
|||
Reposting due to mess
How many?
|
#3
Posted to rec.crafts.metalworking
|
|||
|
|||
Reposting due to mess
On 2007-12-05, Wayne Lundberg wrote:
Wow! Don't know what is happening to this forum. But am reposting in hopes of getting some help: The newsgroup was under attack by an idiot. It looked like a "hipcrime" attack. The attack seems to have been shut down. I saw your question -- and some valid answers -- yesterday. I did not answer because I did not have good advice to contribute. I've been away from the craft for way too long. Have a chance to play in a new project that will involve swaging one inch tubing - starting with prototypes, of course, then hopefully moving to high volume. This will involve taking random lengths of one inch galvanized thin wall tubing, cutting to three ft. segments, swaging one end for nice snug fit, then drilling to place a spring return locking button. Sounds like making modular tent poles. I'm game to do it myself, but also game to let somebody who really know their business tackle the project. We're in San Diego. I don't know enough to be sure of doing this properly, so I'll let you dig back for the other answers -- or hope that they are reposted. Good Luck, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
#4
Posted to rec.crafts.metalworking
|
|||
|
|||
Reposting due to mess
You can use the term 'swedging' to mean either expanding or reducing the
ends of the tube. There are 3 processes usually used to do this -ram die: clamp tube, use a ram to expand or reduce the tube -hydraulic expansion/reduction: a ram pushes a cone shaped mandrel into a matching set of fingers to expand an almost round shape. (works the same to compress things) -rotary pounding machine: rotary hammers pound the tube down, works well for tough materials. A shop with a suitable expansion machine can do do several hundred pieces per hour using generic tooling. Expect to see a setup charge and then perhaps $.15 to $.20 per end if you can find a good supplier. You can make your own ram dies with a suitable clamp mechanism and the double acting ram. The ram die needs to be hardened and polished. The clamp needs to be hardened and seratated. It will be hard to get to the same pieces per hour that a good expansion machine can do but the equipment cost is much lower. Wayne Lundberg wrote: Wow! Don't know what is happening to this forum. But am reposting in hopes of getting some help: I've been away from the craft for way too long. Have a chance to play in a new project that will involve swaging one inch tubing - starting with prototypes, of course, then hopefully moving to high volume. This will involve taking random lengths of one inch galvanized thin wall tubing, cutting to three ft. segments, swaging one end for nice snug fit, then drilling to place a spring return locking button. I'm game to do it myself, but also game to let somebody who really know their business tackle the project. We're in San Diego. Any ideas will be more than welcome. And yes, Tijuana is an option but I'd rather start the project here knowing full well that once full production gets moving it will end up in China. Thanks! |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Artex mess around | UK diy | |||
Concrete mess | Home Repair | |||
Wallpaper mess - help! | Home Ownership | |||
My mess not posted! | Electronics Repair |