Stretch forming

As the premier industry leader in metal forming technologies we form and fabricate a broad range of products from small delicate components to large complex skins and heavy extrusions. This feature is not available right now. LMI has the proper equipment and expertise to stretch large sheets of metal and form thousands of complex parts, from clips and brackets to fuselage skins and leading edges. Capps has the capability to manufacture most component parts and tooling for any assembly in house.

Ducommun possesses some of the largest and most varied stretch forming presses in the United States producing fuselage skins for aircraft as small as general aviation aircraft and as large as the Boeing C-17.

The shapes that the stretch forming process can make vary from one shape to another. All of these can be done through expert use of the method of stretch forming. The die is also called as form block or tool. The stretch forming consists of gripper mechanism which is supported by hydraulic unit of holding the sheet metal.

When applicable, stretch wrap forming methods provide several unique advantages over pure bending and other types of metal forming. As the metal is stretche the piece is curved around a die to ensure a high-quality curve. The types of different bending and stretch-forming methods will deliver different.

Beckwood’s Triform stretch forming machines are ideal for aerospace applications. Stretch Forming : Products Dr. During the stretch forming , or wrap forming process, metal sheets or extrusions are stretched and wrapped around contoured dies and profiles to create the desired shape. We offer comprehensive stretch forming services for bending and forming of various extrusions. Metal Bending Corporation is a worldwide leader and innovator in the metal “curving” industry.

We can work with a variety of ferrous and non-ferrous metals, including but not restricted to steel, aluminum, and copper. Production requirements for the aerospace industry are usually large but will vary from a simple curved surface to a complex cross section. STRETCH FORMING PREPARED BY- VATSAL VAGHELA 2. The blank can be clamped between rigid tools,corresponding to the upper and lower drawing frames of the conventional tools, or be clamped in gripping jaws. The process consists of taking a piece of metal and pulling it around a custom die to match the desired radius. When done properly stretch forming allows for very difficult extrusions to be curved with minimal distortions in the piece.

Sheet stretch forming machines operate by stretching the metal to its elastic limit, then wrapping the part around a forming die. Looking for stretch forming ? Find out information about stretch forming. Shaping metals and plastics by applying tension to stretch the heated sheet or part, wrapping it around a die, and then cooling it.

Extrusion Forming is ideal for the stretch forming of heavy, medium and light gauge extrusions and sheet metal detail parts up to 40ft long. Vastly varying radii and complex curves combined with state of the art fabrication. To fabricate sheet-metal components, our fabrication specialists use the water jet, break press, hot forming , cold forming and hydro- forming.

This allows us to make large fuselage skins. Our skin presses allow for parts up to 6′ width and 8′ length with maximum thicknesses ranging up to. We Specialize in bending of aluminum extrusions and steel shapes.

We are equipped to handle any project from start to finish. The level of precision is so high that, in most cases, even intricate multi-components and snap-together curtainwall components can be formed without loss of section properties or original design function. This process is particularly suited to multi-contoured skins and panels where other forming methods will not achieve proper. We can stretch a variety of parts ranging from small details to large skins from full sheets of material. No allowance is required for springback.

Allowances have to be made for dimensional changes that occur. During stretching the length increases, the width decreases and the thickness decreases. A stretch-forming apparatus includes a main frame which carries a die enclosure between jaw assemblies. An insulated die is mounted in the enclosure.

A method of forming a component includes placing a workpiece in the enclosure, heating the workpiece to a working temperature using electrical resistance heating, and then stretching the workpiece against the die. There are times where things are quick turnaround or fast pace but the management and employees there have always been there to assist when needed.