| 摘要 |
PROBLEM TO BE SOLVED: To provide a friction material excellent in abrasion characteristics not peeled from an adhesive surface during driving and not generating an abnormally large quantity of abrasion at an initial stage of driving. SOLUTION: A friction material is used in the frictional contact part of an oscillating member forming oscillatory waves of an oscillatory wave motor and the contact member coming into frictional contact with the oscillating member and relatively moved along with the oscillating member by oscillation. In this case, a molded body based on fluoroplastic prepared by the compression molding of a fluoroplastic powder and other additives is baked to form a baked body which is, in turn, cut into a sheet shape to form a sheet 32 and the processing modified layer 33 generated on the surface of the sheet 32 by cutting processing is removed. |
