Patent ID: 6991149
Filing Date: 2006-01-31
Classification: B23K

Abstract:
1. A surface treatment method for a work having a plurality of openings, inserting a rotary tool between the openings in a work surface, and stirring and modifying the work surface without frictional heat generated by the rotary tool melting the work surface, comprising: forming margins to interfere with deformation of the openings due to softening of a material in which the openings are formed; stirring the work surface between the adjacent openings using the rotary tool, the rotary tool being detachably supported by a machine tool; changing the rotary tool to a deflashing tool for removing a flash of the work after a surface treatment region of the work is stirred by the rotary tool and when a post-machining for removing the margins is performed; processing a surface treatment region with the deflashing tool; and selecting a rotary tool different from a rotary tool which is used immediately before and performing a surface treatment of an untreated work with the selected tool after the process with the deflashing tool.