View Full Version : Shaping metal with a press..
10-03-2010, 05:57 AM
So far.. nothing but a idea.. using my rousselle C-frame press with the rubber mallet on top coming down.. pressing into a tuck puck.. I can't get a stump in that press..
I think it'll work, no wrinkles.. do away with a lot of helve-hammer work..
I did stainless roses if you remember.. pushing a one inch die down into a rubber mallet (reverse) and it moved the metal in perfect balls one one inch.. I had to pull fingers back to keep them. (small work and tools that bite)
Someone sent me a video of a guy doing 11-14ga plate.. same method.. die over rubber.. he'd did complete sculptures with that.. homemade deal looked like a hydraulic ironworker except it just had a open tool area on the end.. his was made from 1" plate.. or so.. Very big single purpose tool.
(end of day edit)
Rubber mallet just created tucks, would not planish them flat.. It would take a male-female matching die.. these doming dies from the helve tooling do not match 100%.. so.. It looks so promising.. I may not need the helve except for creating profiles.. (roll edges)..
This set of stainless tank sides.. about 30 minutes each.. I did planish them some on the ewheel.. the edges still have small tuck -wrinkles.. but.. the planishing hammer should knock them flat..
10-04-2010, 08:43 PM
I would think it would depend on how far outside the "bowl" the metal extends. If it extends far enough to be "clamped" at the edges, I would expect it to stretch the middle to meet the bottom of the divot. If it didn't reach the edges, then I think you are right... I would force the edge together to shrink it. Wrinkles or not might depend on how steep the sides are. Just MHO.
10-05-2010, 03:55 AM
My wife is pushing me to build some small dies.. and make some jewelry..
Not sure which way this will go.. I currently have no precious metals.. some copper to play with..
A larger open face sheetmetal press is in the future for me.. I got a large press I can cut down to suite the new need.. I think I have found the TOY I desire..
THE tuck pucks, rubber mallet stretched the metal, but would not shrink it.. needs a tight fitting male die.. or a one sided tight fitting die to stretch in one direction.. edge turning mostly.. I have it set up universal right now, drop in 3" socket on bottom, top runs on a 1 1/2" tube or solid bar.. clamp..
10-05-2010, 04:06 AM
if you could take old motorcycle parts and turn them into jewelry, your wife must see something in what your doing, she might be on to something! tt
10-05-2010, 05:11 AM
I've been using flypresses for a few years now. I watched the video that you linked to your post. My wife and I do similar work under a small flypress. I find the flypress to be very friendly to use. We also engrave steel tiles with the flypress.
I demo'd using a flypress at UMBA in 2008, they caught it on video and it is available from umbaonline. It would be worth you effort to get a copy of it.
As a matter of fact, Lilly (my wife) will have the little flypress set up at MM10. Friday and Saturday she will be making non vehicle stuff out of copper. I hope that you and your wife will attend.
I remember a while back, precrash, maybe 2 years, a link to someone using a press. That looks like a nice fast acting press David. My press would tire me out pumping:rolleyes:
10-05-2010, 06:20 AM
Papp in Indonesia used to make pretty cool stuff stuff using a fly press.
10-05-2010, 03:20 PM
My wife is going to have me make some bracelets.. I got tooling drawed up.
A flypress.. has a screw with a counterweight?? it thumps bottom.. not real sure how many tons you hit with the impact... Mine has a 5 horsepower pump, has a dual acting solonoid, a pair of industrial limit switches you can adjust stroke.. to short stroke.. Set the top where it just withdraws a little..
ON the bracelet die.. I am going backwards from the bonne doone?? press.. It has the round die on top.. I am putting one on bottom and the rubber on top.. a one sided arm to bend it around.. you can change dies out on..
We also talked about engraving round dies for the bead roller and a skate wheel to impress designs.. that would mean hooking the A-axis back up on the mill.. Some people use a small 4 axis tabletop cnc milling machine.. Do rings.. bracelets..
Well.. today consisted of a install XP again.. on the cnc milling machine. It was acting goofy.. not repeating.. I reregistered windows.. Reloaded Mach3 new release.. recalibrated.. redone all the set up. It still needs
Made the spring clamp for the overhead helve.. and/????? Well.. I stuck a bottle jack in the gap of the new frame to see if it can hold a cylinder to stretch metal.. in about 5-10 tons pressure (guessing) .. the 6x8 frame flexed about 1/2".. so NO.. it can't. It did not pop, nor make strange noises during the loading...
Goofy thought was to have a helve and a cylinder on that machine... THE helve still has a use.. to do profiles like a pullmax..
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