Surface hardening by turning without chip formation

The present study describes the basic principles,specific features in the implementation and technological capabilities of a new method of quench surface turning without separation of chip. the underlying process of this method is process of deformational cutting (dc) which is based on undercutting and deformation of the surface layers that remain on the workpiece. the energy released in the area of deformational cutting is used to heat the undercut layer up to the temperatures of structural and phase changes of the material being processed. as a result of processing,a hardened structure is formed on the surface which consists of inclined,thin undercut layers tightly fitted to each other. options are available where the undercut layer is fully hardened in its thickness or only partially hardened. options are presented which show structures generated on steels. samples hardened by dc method showed a higher wear resistance compared to samples with volumetric hardening. © 2017 jordan journal of mechanical and industrial engineering.