Metal working – Burnishing
Patent
1989-12-08
1991-03-12
Eley, Timothy V.
Metal working
Burnishing
295251, B21C 3730, B24B 3900
Patent
active
049983326
ABSTRACT:
A method and apparatus for establishing a precisely predetermined location relative to a surface. A reforming tool has a main body, tapered portion, a shank and a tip having a point. The reforming tool is attached to a base having provision for rotating and reciprocating the reforming tool. According to the method of the present invention, the reforming tool is used to burnish an annular seat in a surface, an aperture coaxial with the annular seat, and an annular flange about the aperture. The location of the annular seat is precisely predetermined. The apparatus includes a button having a flat surface at one end and a part spherical surface at the other end that is received by the annular seat so that the part spherical surface rests on the annular seat. The button end having the flat surface then defines the precisely predetermined location, particularly an attachment location for a body panel onto a surface of a frame member. A threaded fastener then inserts through an aperture in the body panel an a central bore in the button, and screws into the annular flange, thereby securing the body panel to the frame member. When the frame member must be reformed at a plurality of locations, a plurality of reforming tools are used, each reforming tool being attached to a base at a predetermined location. Movement of the base relative to the inner body frame structure will thereupon cause each of the tools to burnish the surface of the frame member as hereinabove described.
REFERENCES:
patent: 3382630 (1968-05-01), Chivers
patent: 4177659 (1979-12-01), van Geffen
patent: 4185486 (1980-01-01), van Geffen
patent: 4186476 (1980-02-01), Mair et al.
patent: 4413485 (1983-11-01), Larikka
Eley Timothy V.
Utica Enterprises Inc.
VanOphem Remy J.
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