RESEARCH AND DEVELOPMENT PROSPECTS OF THE QUALITY OF METTALIC PRODUCTS ACHIEVED ON CNC MACHINES

Abstract

In the technological flow of achievement of a metal product, bending is very important, the quality and conformity of the product depending on this operation. The calculation of the drawing (the geometry in plane of the piece) becomes important, because it must include the deformation caused by the bending operation. The paper proposes research and studies on determining the drawings of metal parts with the thickness between 0.8 and 6 mm. It is considered that other variables such: the vibrations of the machines, their usage and the variable temperature during the process of punching and bending, may influence the quality and precision of the products. The wearing of the tools, the tolerance between the active surfaces of the bending tools, the roughness of the sheet metals represent other measures that cause deviations of size for the bent component, but they are not the purpose of this research.