Stamping and Moulding

The drawing is a process widely used in many industries (automotive, electrical, etc ...) It is a manufacturing technique that allows the obtaining, from a sheet of flat and thin sheet metal, an item the form that is not yet developed, following a principle of plastic deformation of the material (usually a metal), consisting of a distortion or a lengthening local extremity of the plate to get the desired shape.

As a result of the overall conservation of the volume of material, areas affected stretch and thinning areas extremity (compression) show a combination of thickening and folding:

• The drawing is done with stamping presses or by applying a high fluid pressure plate sheet against the matrix. This high pressure can be obtained by using hydraulic devices or explosives.

• The selection process depends on a number of parameters (type of press, the shape of the piece of material (steel standard, high strength steel, aluminum, etc..), The total number of operations get the piece finished, etc).

In general, the drawing is a cold forming that do not fully plasticized room, a back elastic is necessary for final assembly. It should be noted that stamping operations can pose problems of friction, wear and lubrication.

Tube Bending

In the workshops France-Industries, we are also specialists in tube bending

Bending it to be made hot or cold, wound, for thrust, by rolling or drawing is a mechanical deformation of a tube or a bar, following a radius and an angle with a bender.

It uses more generally cold bending. This deformation operation is performed on machines of high technology by highly experienced workers

It should be noted that all the tubes are not as pliable material must present a sufficient percentage of elongation. When a pipe hanger, the outer wall thinning (it is called the surface). The area grows and loses its thickness. Unlike the surface, the inner wall (called bottom) thickens compression of matter.