Materials: volume and surface properties
Tribology of drawing

The method of manufacturing a thin sheet for bodywork is described on 4 . These are very low-carbon steel sheets (yield strength R _e ~ 160 to 200 MPa) whose high formability is ensured by the high value of their elongation at breakA (∼ 35 to 45%) and their normal anisotropy coefficienter (∼ 1.7 to 1.85) ( 1 ). For a definition of the normal anisotropy coefficient, please refer to