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    • 8. 发明申请
    • HIGH-SPEED GROOVING METHOD
    • US20190061008A1
    • 2019-02-28
    • US16116549
    • 2018-08-29
    • Toshiba Kikai Kabushiki Kaisha
    • Takanobu AKIYAMA
    • B23B5/08B23D11/00
    • A high-speed grooving method includes: a dummy machining step of machining a dummy groove in the surface of the workpiece by moving the cutting tool relative to the workpiece in a first direction, then turning the cutting tool 180 degrees, and subsequently further machining the dummy groove by moving the cutting tool in a second direction opposite to the first direction; a step of measuring a displacement of the cutting edge of the cutting tool, caused by the inversion of the cutting tool, from the dummy groove formed in the surface of the workpiece; a forward-stroke machining step of machining a groove with the cutting tool in the surface of the workpiece by moving the cutting tool relative to the workpiece in the first direction; a cutting tool inversion step of turning the cutting tool 180 degrees after completion of the forward-stroke machining step, thereby setting the direction of the cutting edge of the cutting tool to a direction opposite to the first direction so that the workpiece can be machined during a return stroke of the cutting tool; a correction step of correcting the relative position between the workpiece and the cutting tool so as to eliminate the displacement; and a return-stroke machining step of further machining the groove, which has been machined in the forward-stroke machining step, with the cutting tool by moving the cutting tool relative to the workpiece in the direction opposite to the first direction.