Method for rapid prototyping of solid models

Details Method for rapid prototyping of solid models Method for rapid prototyping of solid models

1997-05-29

1999-02-02

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Disparate treatment of article subsequent to working,...

Effecting temperature change

264308, 36446826, B29C 4102

Patent

active

058660585

ABSTRACT:
Data corresponding to a desired shape of a prototype is transmitted to a rapid prototyping system. The system calculates a sequence for extruding flowable material that thermally solidifies so as to create the desired geometric shape. A heated flowable modeling material is then sequentially extruded at its deposition temperature into a build environment that maintains the volume in the vicinity of the newly deposited material in a deposition temperature window between the material's solidification temperature and its creep temperature. Subsequently the newly extruded material is gradually cooled below its solidification temperature, while maintaining temperature gradients in the geometric shape below a maximum value set by the desired part's geometric accuracy.

REFERENCES:
patent: 4749347 (1988-06-01), Valavaara
patent: 5121329 (1992-06-01), Crump
patent: 5141680 (1992-08-01), Almquist
patent: 5545367 (1996-08-01), Bae et al.

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