Organization miniaturization method of steel material, steel material and cutlery with a microstructure

摘要

Topic As for this invention, it is something which offers the edged tool which offered the steel material where it offers the method of doing the organization refinement in the surface section of the steel material can actualize the improvement high life conversion of the cutting tool and the edged tool etc, minuteness organization possesses, processed the organizational minute territory to the edge. Organization refinement refinement of the basic material crystal grain and refinement of the carbide are meant.SolutionsOrganizational refined method of the steel material of this invention has had with the 1st process which forms the carbide refined territory and the 2nd process which forms the organizational refined territory. As 1st process, heating the surface section of the steel material locally quickly with the laser, after forming the melting accumulating, the said melting accumulating it forms the carbide refined territory by the fact that it solidifies quickly. As a 2nd process, friction churning process is administered to the carbide refined territory which was formed with 1st process, the organizational refined territory is formed. Selective figure Figure 1