Solid freeform fabrication using power deposition

Details Solid freeform fabrication using power deposition Solid freeform fabrication using power deposition

1998-12-11

2000-05-23

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Direct application of electrical or wave energy to work

Conveying or aligning particulate material

264317, 264497, 264603, 4251748E, 425363, B29C 3508

Patent

active

060662859

ABSTRACT:
A solid freeform fabrication process and apparatus for producing three dimensional parts using layer-by-layer deposition of support powder and part compositional powder, where the deposition is accomplished using electro-photographic powder deposition technology to create a three-dimensional green part. Each successive loose powder layer is deposited directly onto the previously deposited powder layer, which has been compacted or fused to its underlying layer. After all powder layers have been deposited the green part is further processed such that the part compositional powder is fused to create a high-density part while the support powder is easily removed.

REFERENCES:
patent: 4961154 (1990-10-01), Pomerantz et al.

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