Helical conformal channels for solid freeform fabrication and to

Details Helical conformal channels for solid freeform fabrication and to Helical conformal channels for solid freeform fabrication and to

1997-06-26

1998-12-15

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Stereolithographic shaping from liquid precursor

264113, 264123, 264128, 264219, 264308, 264497, 36446826, 36446827, 419 43, 419 69, B29C 3340, B29C 3508, B29C 4102

Patent

active

058492380

ABSTRACT:
A method for forming a tool such as a mold includes the steps of initially selecting a cooling channel configuration for the mold. The initial selected cooling channel is evaluated utilizing a computer program. The program analyzes whether there would be local hot or cool spots in the mold with the initially selected channel. The channel is then modified based upon this evaluation. The modified channel is again subjected to the evaluation. This iterative process continues until an acceptable cooling channel configuration is achieved. The invention utilizes a generally helical cooling channel.

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Thesis of Edward M. Wylonis, III of Massachusetts Institute of Technology, 1995 entitled "Production of Injection Molding Tooling with Conformal Cooling using the Three Dimensional Printing Process".
Thesis of Earl S. Sun, Georgia Institute of Technology, 1995, entitled "Implementation of Low Thermal Inertia Injection Molds using Conformal Passages".

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