Forming thermoplastic laminates into major sections

Details Forming thermoplastic laminates into major sections Forming thermoplastic laminates into major sections

1986-01-09

1988-07-26

Thurlow, Jeffery

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156443, 264294, 264295, 264316, 264322, 264339, B29C 5304, B29C 5382, B29C 5384

Patent

active

047598158

ABSTRACT:
A method and apparatus for bending flat thermoplastic laminates into structural shapes such as angles, channels, Z sections, J sections and I sections. In order to bend the laminate into the desired shape by appropriate tooling, heat is applied in a localized manner only to the area that is to be bent. The application of heat is sufficient to heat the laminate to its softening temperature in the bend area, and the plies of the laminate can thus slip in the bend area only as bending force is applied so that the bend can be made without the need to heat the entire laminate to the softening temperature.

REFERENCES:
patent: 3533872 (1970-10-01), Robbins et al.
patent: 3657040 (1972-04-01), Shobert
patent: 4022860 (1977-05-01), Sugeno et al.
patent: 4097573 (1978-06-01), Parmann
patent: 4098785 (1978-07-01), Haruta et al.
patent: 4160006 (1979-07-01), Patzner et al.
patent: 4184905 (1980-01-01), Ogata et al.
patent: 4610837 (1986-09-01), Frey

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