Metal drawing

The drawing is part of the cold stamping of the sheets or the complex of operations that allow to obtain, without chip removal, through a plastic deformation objects of size and shape desired by sheets of metallic material (steel, copper, aluminum, light alloys) of limited thickness.

Drawing is the most difficult operation of cold forming by which a flat plate is transformed into a hollow body, through one or more passages. During this operation the material is subjected to considerable stress and compression stresses which modify the position of the fibers and for this reason requires the use of quality sheets.

The drawing operations are often accompanied by bending operations: operation with which objects of various shapes can be obtained without altering the thickness of the sheet.