Metal working – Method of mechanical manufacture – Shaping one-piece blank by removing material
Patent
1999-03-31
2000-07-18
Briggs, William
Metal working
Method of mechanical manufacture
Shaping one-piece blank by removing material
29 27C, 82 111, 82164, B23P 1302, B23B 100
Patent
active
060889039
ABSTRACT:
To provide a lathing method and apparatus capable of realizing lathing of a bar member made of a hard cutting material and lathing a stock made of a hard cutting material by a lathe including an NC automatic lathe, although lathing of the hard cutting material is impossible in a conventional case, a round bar is rotatably held to be fed along the longitudinal direction of the round bar by a guide bush fixed on the main body side of the lathing apparatus, and the round bar is sequentially fed from the guide bush to a machining tool arranged on the main body side, thereby lathing the round bar in a cantilevered state. Alternatively, a stock is gripped by the chuck of a lathe which performs turning or a lathing device which performs any other machining in addition to the turning, and the stock is lathed while the outer surface thereof is held to prevent an off-axis error. For this purpose, at least a solid lubricant layer is formed in advance to have a predetermined thickness at a predetermined position where the stock is held to reduce friction.
REFERENCES:
patent: 4574666 (1986-03-01), Habegger
patent: 4995298 (1991-02-01), Arisaka et al.
patent: 5345847 (1994-09-01), Weller
patent: 5522689 (1996-06-01), Cucchi
patent: 5551324 (1996-09-01), Akhmetzyanov et al.
patent: 5662014 (1997-09-01), Link
Briggs William
Kabushiki Kaisha Matsuo Kogyo Sho
Nitto Kogyo Kabushiki Kaisha
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