Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1991-11-19
1994-11-08
Gall, Lloyd A.
Metal working
Method of mechanical manufacture
Assembling or joining
295252, 403265, 411504, 411507, 411908, B21D 3900, F16B 1906
Patent
active
053614836
ABSTRACT:
A composite fastener, preferably in the form of a rivet, which comprises a shank having a first head integrally formed on one end thereof, the shank and head formed of a high temperature thermoplastic matrix material selected from the group consisting of a polyether ether ketone resin and a polyamide imide resin, and having continuous reinforcing fibers, such as graphite fibers, axially oriented in substantially parallel relation throughout the shank, the fibers being flared and extending continuously into the head and substantially evenly flared and swaged therein, thereby forming a fastener having high shear and high tensile characteristics. The rivet is installed to fasten a plurality of structural components together by providing a conical tip on a forming tool, such as a heat gun or ultrasonic welding device for plastics, placing the tip in contact with the central portion of the other end of the rivet and upsetting and melting the matrix material under controlled conditions to form a second head, the fibers in the second head being flared and extending continuously into the second head and evenly swaged therein. Where the structural components are composite thermoplastic components, the heating of the rivet head to upset same heats the adjacent composite structure in contact with the head and, upon solidification, forms a substantially integral unit.
REFERENCES:
patent: 2458152 (1949-01-01), Eakins
patent: 2510693 (1950-06-01), Green
patent: 2685813 (1954-08-01), Lampman et al.
patent: 3754310 (1973-08-01), Shea
patent: 4253226 (1981-03-01), Takeda
patent: 4329915 (1982-05-01), Schulz
patent: 4477394 (1984-10-01), Armstrong et al.
patent: 4478544 (1984-10-01), Strand
patent: 4560428 (1985-12-01), Sherrick et al.
patent: 4609315 (1986-09-01), Briles
patent: 4687394 (1987-08-01), Berecz
patent: 4687395 (1987-08-01), Berecz et al.
patent: 4687396 (1987-08-01), Berecz
patent: 4687398 (1987-08-01), Berecz
patent: 4718801 (1988-01-01), Berecz
Israeli Leonardo
Rainville Gilles A.
Gall Lloyd A.
Geldin Max
Lewis Terrell P.
Rockwell International Corp.
Silberberg Charles T.
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