Rapid prototype injection molding

Details Rapid prototype injection molding Rapid prototype injection molding

2006-10-24

2006-10-24

Johnson, Christina (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

C264S401000, C264S464000, C264S442000

Reexamination Certificate

active

07125512

ABSTRACT:
Disclosed is a method and apparatus for making a prototype injection molded part. An extruder of the type used for fused deposition modeling injects production thermoplastic material into a heated nonconductive plastic mold tool slowly at low pressure in an isothermic process. The mold tool may be built from a CAD drawing by fused deposition modeling or another rapid prototyping technique. Using the present invention, an injection molded prototype part can be made from a digital representation of the part within 24 hours by an engineer in an office environment.

REFERENCES:
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patent: 5952018 (1999-09-01), Beldue et al.
patent: 6287428 (2001-09-01), Gale et al.
patent: 6355196 (2002-03-01), Kotnis et al.
patent: 6790403 (2004-09-01), Priedeman et al.
Rosato, Dominick V., Donald Rosato, Marlene Rosato. Injection Molding Handbook (3rd ed.) Boston: Kluwer Academic Publishers. 2000. pp. 147, 150, 263, 334, 354, 445, 692-693.
Rosato, Dominick V., Donald V. Rosato, and Marlene Rosat. “Injection Molding Handbook” (3rd ed.) Boston: Kluwer Academic Publishers. 2000. p. 29.

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