DISKLIKE CUTTING TOOL AND CUTTING DEVICE

WIPO Patent Application WO/2008/047790

A1

A disklike cutting tool (10) comprises a disklike cutting blade (12) having a circular hole (11) in the center, an annular supporting plate (19) arranged on the surface on each side of the blade (12) coaxially therewith and supporting/fixing the blade (12) at a position on the inner circumferential side of the outer circumferential edge of the blade, and a continuous annular ultrasonic vibrator (14) secured to the surface of the supporting plate (19) coaxially with the blade at a position on the outer circumferential side of the inner circumferential edge of the supporting plate (19). The supporting plate (19) has an ultrasonic reflection plane (16) consisting of the interface with a continuous or discontinuous annular air phase space extending in the thickness direction of the supporting plate (19) at a position on the inner circumferential side of the inner circumferential edge of the ultrasonic vibrator (14). The outer circumferential edge of the blade (12) can perform ultrasonic vibration with a large amplitude in the radial direction of the blade.

JP2008044076	WORKPIECE CUTTING METHOD AND CUTTING DEVICE
JP3899224	CIRCULAR SAW MACHINE
JP3373166	CIRCULAR SAW CUTTING MACHINE

OHNISHI, Kazumasa (121-35, Hanazonohigashi 2-chome Nagaoka-sh, Niigata 46, 9400846, JP)

JP2007/070162

April 24, 2008

October 16, 2007

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OHNISHI, Kazumasa (121-35, Hanazonohigashi 2-chome Nagaoka-sh, Niigata 46, 9400846, JP)

B23D47/00; B23D61/02; B28D5/02; H01L21/301

YANAGAWA, Yasuo (Mitsuya-Yotsuya Building 8th Floor, 2-14 Yotsuya,Shinjuku-k, Tokyo 04, 1600004, JP)

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