Deep Draw Stamping at Jones Metal

Jones Metal’s outstanding reputation for deep draw hydroforming of parts for aircraft engines and exhaust systems extends to deep draw stamping of parts for the same markets. The resonator box, which plays a part in the reduction of the noise of an aircraft engine, is a good example of a deep draw stamped part. Resonator boxes are small (on the order of 2 inches wide x 3 inches long x 1 inch deep). They are stamped from thick sheet metal materials such as the Inconels and the Hastalloys that withstand high temperatures and stress. Material thickness up to 0.063 is common. The final shape of the part may be rectangular or diamond-shaped, and the boxes may require two to three draws on a press. They may also need heat treatment between draws to soften the part. Usually, following the deep draw stamping process, the part will require trimming, often on a laser cutter. They also may require spot welding of a braising material onto the surface and many require the drilling of a pattern of tiny holes.

At Jones Metal, preparation for producing a resonator box begins in the company’s tool and die department, where hard tooling is made according to the customer’s specifications.  This hard tooling is then fitted on a 176 ton press, which has a variable speed motor to control the speed of hits. With this kind of control, the material gets time to move and from, and the required depth of the part is better achieved.

A component for the land-based turbine market called the “scoop” also requires deep draw stamping to produce parts somewhat like resonator boxes, but smaller. Tooling and material requirements are similar to resonator box requirements, and several hits on a press may be required. Because these scoops are smaller than the resonator cups discussed above, 45 ton and 110 ton presses are used. Heat treatment and other ancillary services often are performed. Jones Metal makes scoops of varying size and shape, depending on the customer’s specifications.

Contact Jones Metal for more information on deep draw stamping and hydroforming—two different methods of metal forming, sharing experienced people in metal forming with heat treating, laser trimming, and machining, all under one roof!