Patent Number: 6,637,303

Title: Elliptical vibration cutting method and elliptical vibration cutting apparatus

Abstract: A workpiece is cut by a cutting tool that is attached to a cylindrical support body vibrated by at least two piezoelectric drive elements. The efficiency of the mechanical vibration is improved by attaching the piezoelectric drive elements to a cylindrical body portion (7,7.1,7.2) of the tool support body (2) and by providing the support body with a plurality of necked-down end sections. At least the cylindrical body portion (7,7.1,7.2) is a cylinder with a substantially circular cross-section or with a circular cross-section to provide a constant or a substantially constant bending rigidity of the cylindrical tool support body.

Inventors: Moriwaki; Toshimichi (Kobe-shi, Hyogo, JP), Shamoto; Eiji (Takarazuka-shi, Hyogo, JP), Matsuo; Makoto (Kyoto-shi, Kyoto, JP)

Assignee:

International Classification: B23B 29/00 (20060101); B23B 25/00 (20060101); B23B 25/02 (20060101); B23B 29/12 (20060101); B23B 037/00 (); B23B 029/00 ()

Expiration Date: 10/28/2020