Title: Vibration threading lathe for precision screw cutting

Abstract: A vibration threading lathe has a cutting tool vibrated by an ultrasonic vibrator and supported by a tiltable frame which is so tiltable that the cutting tool can be inclined at the lead angle of the screw thread. As a result, screw cutting can be accomplished with remarkably low resistance to cutting, without burrs, and with a remarkably low rate of abrasive wear of the cutting tip. This lathe is highly suitable for threading articles of difficult-to-machine materials such as stainless steel, titanium, and beryllium copper, and particularly tubular articles of small diameters and having thin walls.

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Inventors: Sotome, Tatuo (Hiratsuka, JP)
Yokoi, Fumio (Isehara, JP)

Application Number: 06/274356
Filing Date: 1981-06-16
Publication_date: 1983-12-13
Assignee: PILOT PEN CO LTD (JP)
Shinjo, Seisakusho YK. (JP)

Primary Class(es): 82/110 82/904, 82/11.100
Other Classes: B23B29/12; B23G1/04; B23G3/00; B23B29/00; B23G1/00; B23B5/24
US Patent Ref:

3516138	June, 1970	McCarroll	82/14R	METHOD OF MACHINING A TWO PIECE PULLEY ASSEMBLY
4143564	March, 1979	De Biasse	82/14R	Apparatus for simultaneously forming selected circumferential and axial profiles on a workpiece

Other Refs: JP54-11586JP55-144902

January, 1979	82D/IG9
November, 1980	82D/IG9

Primary Examiner: Bray W. D.
Assistant Examiner:
Attorney: Wenderoth, Lind & Ponack

Claims: