Solid state forming of thermoplastic material

Details Solid state forming of thermoplastic material Solid state forming of thermoplastic material

1975-08-21

1977-03-29

Kucia, Richard R.

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

Flash or sprue removal type

264163, 264322, 264323, 264325, B29F 500

Patent

active

040149706

ABSTRACT:
A method for solid state forming of thermoplastic material by subjecting a solid blank of the material, preheated to a temperature just below that at which the material is no longer solid, to high compressive strain causing an abrupt flow of the material throughout a mold cavity.

REFERENCES:
patent: 2953816 (1960-09-01), Kidder
patent: 3488747 (1970-01-01), Cleereman
patent: 3546221 (1970-12-01), Johnson
patent: 3621092 (1971-11-01), Hofer
patent: 3626053 (1971-12-01), Hofer
patent: 3842154 (1974-10-01), Lundberg
Fazzari et al., G R Thermoplastic for Stamping on Ordinary Mechanical Presses, SPE Journal, Sept. 1972, v. 28, pp. 38 to 42.
Werner et al., Forging High Molecular Weight Polyethylene, SPE J., Dec. 1968, vol. 24, pp. 76 to 79.

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