Combination precision drill guide and replacement part

Details Combination precision drill guide and replacement part Combination precision drill guide and replacement part

1998-06-12

2000-08-29

Pitts, Andrea L.

Cutting by use of rotating axially moving tool

Processes

Bit detachable

33562, 33570, 408 75, 408 82, 408115B, 408241B, B23B 3500

Patent

active

061098396

ABSTRACT:
A kit for repairing a worn out of round aperture. The kit includes a template which is later utilized as a part of the repair. In a first embodiment, the template is precisely located by means of utilizing the bottom of the aperture which does not become out of round as does the upper portion thereof and is fixedly attached to the structure containing the out of round aperture. A sacrificial pin is inserted in the out of round aperture, centered therein by means of the bottom non-out of round portion and adhered thereto. A drill is then passed through the boring guide enlarging the out of round aperture to a true round bore and the sacrificial pin is drilled out at the same time. The boring guide is then removed and an enlarged precision pin is inserted into the re-bored aperture. The new pin is fixedly secured in the new aperture by any convenient means such as peening between the pin outer surface and the adjacent structure. In a second embodiment, a similar process using the boring guide and drill to enlarge an out of precision aperture and installing an insert to return the aperture to the original internal diameter.

REFERENCES:
patent: 4194861 (1980-03-01), Keller
patent: 4594031 (1986-06-01), Tesmer
patent: 5056965 (1991-10-01), Tsui et al.
patent: 5284406 (1994-02-01), Mueller et al.
patent: 5630683 (1997-05-01), Smith

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