高分子材料の振動切断に関する研究

抄録

In the previous report, theoretical results upon cutting resistance, and problems with regard to edge radius of the blade were considered through some experiments, in cases in which soft polymers were ordinarily cut. Even though a sharp blade was used, ordinary cutting was subject to considerable difficulty owing to material deformations and deflections when the solid friction acted between the surfaces of the blade and the material. This paper treats the method of vibration cutting which utilizes effective reduction of the solid friction by vibration. Theoretical results of this method such as reduction of cutting resistance and fine cutting without attending with such difficulties are confirmed experimentally by cutting soft polymers with the blade vibrated sinusoidally. Not only the extent of vibration velocity amplitudes but also of critical displacement amplitudes which can probably yield enough vibration effects with respect to the vibration cutting are discussed. And in addition, results utilized as application of this method for practical purposes are described.