Combination drilling and dressing bit

Details Combination drilling and dressing bit Combination drilling and dressing bit

1987-05-01

1988-01-19

Bilinsky, Z. R.

Cutting by use of rotating axially moving tool

Tool having crystalline cutting edge

408118, 408201, 408225, 51181R, 51206R, 407 32, 407 1, B23B 5100

Patent

active

047202181

ABSTRACT:
The bit (1, 101, 201) includes a pointed tapered drill portion (10, 110, 210) with cutting edges (14, 114, 214), an abrasive frustoconical grinder portion (20, 120, 220), and an abrasive cylindrical reamer portion (30, 130, 230). The drill portion (10, 110, 210) produces a hole. The grinder portion (20, 120, 220) grinds and enlarges the hole. The reamer portion (30, 130, 230) finishes the hole. The drill portion (10, 110, 210) is carried by a shaft (12, 112, 212) that is received into an axial opening (40, 140, 240) through the grinder and reamer portions (20, 30, 120, 130, 220, 230). The drill portion (10) and grinder portion (20) may form a substantially continuous taper. In another embodiment, the drill portion (110) has an arrowhead configuration. In another embodiment, a radial slot (224) extends through the grinder portion (220), and the drill portion (210) extends axially and radially from the slot (224).

REFERENCES:
patent: 362934 (1887-05-01), Champion
patent: 2057421 (1936-10-01), Dickson
patent: 2272348 (1942-02-01), Newman
patent: 2501000 (1950-03-01), Murphey
patent: 2705515 (1955-04-01), Walker
patent: 2725766 (1955-12-01), Van Heukelom
patent: 2978846 (1961-04-01), Barron
patent: 3017790 (1962-01-01), Werle
patent: 3153354 (1964-10-01), Prince
patent: 3202228 (1965-08-01), Schuster
patent: 3739461 (1973-06-01), Cupler
patent: 3762831 (1973-10-01), Nicholson
patent: 4116578 (1978-09-01), Gelfand et al.
patent: 4480952 (1984-11-01), Jeremias
A. J. Koch, "Abrasive Drill for Resilient Materials", NASA Technical Briefs, Fall, 1980, Lewis Research Center No. LEW-13411.

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