VIBRATION DAMPING MEMBER FOR MACHINE PARTS, METHOD OF MANUFACTURING THE SAME, AND MACHINE PARTS USING THE VIBRATION DAMPING MEMBER

PROBLEM TO BE SOLVED: To provide a vibration damping member for a machine part and a method of manufacturing the same, capable of readily selecting a material according to a demand with few restrictions in respect of the material, being widely applied to a lot of machine parts, and forming nonbonding boundary faces for improving the damping performance with no scales interposed in between. SOLUTION: The vibration damping member includes the nonbonding boundary faces in contact with each other by being not metallurgically bonded. The nonbonding boundary faces are formed by applying shearing stress to the material in hot forming or warm forming, executing half-shearing process as shearing process for forming a slide portion by displacing part of the material to such an extent that it is not separated from a portion therearound, performing descaling of a new surface generated by forming the slide portion, and thereafter executing replacing process for returning the slide portion to its original position in cool forming. COPYRIGHT: (C)2008,JPO&INPIT