Hydroforming – The Hydroformnig Process – How Hydroforming Works
To learn more about how hydroforming works, visit http://www.jmpforming.com/hyrdroforming/hydroforming-process.htm or call us at 740-545-6381!
“The hydroforming process, you set up your machine, get the tool out required for the job, locate your blanks, put your blank in and do a pre-charge, which is putting pressure on the blank to to hold it to the tool to start forming. Then you set your pressures to draw. You have a top pressure that controls a lot of your material thin-out. So then you start the draw process.
Whenever you get to your top pressure, there’s a displacement inside the chamber that allows the oil to dissipate so you don’t build up anymore pressure. You draw up and set a high-limit for your draw, it’ll kick the punch out when you achieve your total depth. Then you raise the dome and you strip your punch out and then take the part out of the press, and that’s your process.
This particular part was a very unique shape. There are intricate angles to it and working with a brass is a touch material to work with because when you draw it up, it work hardens, so then you have to do some work to it in order to be able to do some of the shapes we do, the forming we do to it.
With hydroforming, you can draw the part up with pressure, you have pressure in the rubber diaphragm on top, that forms the material to the size and shape of the punch. Hydroforming is something that you can control your tolerances, and with hydroforming, your part can go through with a lot less scratching like you have with mechanical presses because you don’t have that metal-to-metal on the outside. It’s a rubber diaphragm, which allows you to keep a lot better finish on the outside.
This particular part has a top and bottom that go with it. We roll a bead in it and laser some holes, which you’ll see the lasering operation. Next it gets a very high polish for a bright finish. It’s a mirror finish: you can look right into it and see yourself!
You can do various shapes better with hydroforming than you can on mechanical presses. Mechanical presses are great for round parts or something like that, but when you get into special shapes and special tolerances, hydroforming is the way to go.
We do anything from cookware to commercial lighting to racing industry parts, we do a lot of bell housings, which have critical tolerances. They have to pass SFI tests. Probably half of our business comes from the aerospace industry. Hydroforming is very adaptable for any market.
We pride ourself on quality and on-time delivery at a competitive price. We strive for the best part possible for the customer.”
To learn more about hydroforming, visit http://jmpforming.com!