Method of embedding inserts in a thermoplastic body

Details Method of embedding inserts in a thermoplastic body Method of embedding inserts in a thermoplastic body

1975-06-24

1976-12-21

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

1563031, 264259, 264271, 264319, B29D 300, B29F 500

Patent

active

039988244

ABSTRACT:
In order to secure a metal element, such as, a pin or shaft, to a synthetic resin body so as to project from one surface of the latter, the body is formed with a hole extending from that one surface to the opposite surface of the body and preferably having a cross-sectional area smaller than that of a mounting portion at an end of the metal element, the metal element is inserted into the hole from that opposite surface, and the metal element is pressed in the axial direction of the hole toward the surface from which the metal element is to project so as to urge the mounting portion into the hole while softening the region of the body contacted by the mounting portion until the latter is contained in the hole and the metal element projects to the desired extent from the body, whereupon the body is allowed to harden at the region of its contact with the mounting portion. Preferably, the synthetic resin of the body is thermoplastic and is softened at its region of contact with the mounting portion by heat conducted through the latter from a heat source urged against the mounting portion for simultaneously pressing the mounting portion into the hole.

REFERENCES:
patent: 596264 (1897-12-01), Force et al.
patent: 2679913 (1954-06-01), Scott
patent: 3184353 (1965-05-01), Balamuth et al.
patent: 3189672 (1965-06-01), Lyman
patent: 3261909 (1966-07-01), Rust et al.
patent: 3264721 (1966-08-01), Fitzpatrick et al.
patent: 3265781 (1966-08-01), Petersen
patent: 3436803 (1969-04-01), Sarnoff
patent: 3440118 (1969-04-01), Obeda
patent: 3444018 (1969-05-01), Hewitt

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