Ceramics, Laser Strengthening And Toughening Mechanism Of Carbide Cutting Tools And Technology Research

In this paper the laser enhancement mechanism of ceramics and cemented carbide tool was investigated. First, the laser enhancement technology and mechanism of S13N4 ceramics tool was approached: the surface hardness of S13N4 cutting edge have been enhanced though there are some flaw; the influenoe regularity of laser parameter on the fissure occurrence was discussed; the flaw producing cause was analyzed and some measure to decrease the flaw was held out; a set of optimum laser parameter was drawn. Then, the research on laser enhance YG8 cemented carbide tool shows that the surface hardness have been greatly raised after laser handling; the macro feature and microstructure was deeply analyzes by means of surface micro hardness..micrography and xay diffraction; the laser enhancement technology and mechanism of YG8 cemented carbide tool was studies.