Process of support removal for fused deposition modeling

Details Process of support removal for fused deposition modeling Process of support removal for fused deposition modeling

1994-06-02

1996-04-02

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

Controlling rate of movement of molding material or its...

264308, 264317, B29C 4102, B29C 4152

Patent

active

055037852

ABSTRACT:
Processes and apparatus are disclosed for producing three-dimensional objects having overhanging portions freely suspended in space without any material of the object in direct, supporting engagement therewith in the final geometry of the object. A support structure is formed by depositing material which will be under the ultimately suspended portions of the object to be formed, during a process in which material is built up in layers to form the object as well as the underlying support structure. A readily removable support structure is formed along an interface with the underside of the suspended portion of the object structure. A weak, removable or breakable joint is formed along that interface by the use of an interface material which forms a weak or dissolvable bond with the material of the object. The release material may be deposited as a separation layer, or as a thin coating.

REFERENCES:
patent: 5260009 (1993-11-01), Penn
patent: 5340433 (1994-08-01), Crump
patent: 5362427 (1994-11-01), Mitchell, Jr.

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