[특허]Method of and apparatus for making a three-dimensional product by stereolithography

Method of and apparatus for making a three-dimensional product by stereolithography 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B29C-035/08 B29C-041/02
출원번호	US-0515479 (1990-04-27)
발명자 / 주소	Almquist Thomas A. (San Gabriel CA) Modrek Borzo (Montebello CA) Jacobs Paul F. (La Crescenta CA) Lewis Charles W. (Sherman Oaks CA) Lewis Mark A. (Valencia CA) Liran Abraham (Northridge CA)
출원인 / 주소	3D Systems, Inc. (Valencia CA 02)
인용정보	피인용 횟수 : 88 인용 특허 : 0

초록 ▼

Apparatus and methods for stereolithographically forming a three-dimensional object includes a vessel for holding a building material and a smoothing member for forming a uniform coating over a previously formed layer of the object. The smoothing member has a plurality of blades. The smoothing member is swept over a previously formed layer of the object, in at least two directions. Different clearances between the lower surface of the smoothing member and the upper surface of the previously formed layer are used to provide a uniform coating for a subsequent layer over the previously formed layer. The sweeping velocity of the smoothing member can be varied. Retractable needles are attached to the smoothing member for adjusting a blade gap between the lower surface of the smoothing member and the surface of the building material.

대표청구항 ▼

An apparatus for stereolithographically forming at least a portion of a three-dimensional object wherein at least a first subsequent layer and a second subsequent layer of the three-dimensional object are formed over a first and second previously formed layer of the object, respectively, comprising: a) means for holding a volume of building material having a working surface wherein the building material is capable of selective transformation upon exposure to prescribed synergistic stimulation; b) means for forming a unfirm coating of desired thickness over the previously formed layer in preparation for forming the first subsequent layer of the three-dimensional object including means for sweeping a smoothing member over the first previously formed layer at least once with a first smoothing member velocity; c) means for applying a prescribed pattern of synergistic stimulation to the building material at the working surface to transform at least a portion of the building material to form the first subsequent layer; d) means for forming a uniform coating of desired thickness over the second previously formed layer in preparation for forming the second subsequent layer of the three-dimensional object including means for sweeping a smoothing member over the second previously formed layer at least once with a second smoothing member velocity; e) means for causing the first and second smoothing member velocities to be different; and means for applying a prescribed pattern of synergistic stimulation to the building material at the working surface to transform at least a portion of the building material to form the first subsequent layer. A method for stereolithographically forming at least a portion of a three-dimensional object wherein at least a first subsequent layer and a second subsequent layer of the three-dimensional object are formed over a first and second previously formed layer of the object, respectively, comprising the steps of: a) holding a volume of building material having a working surface wherein the building material is capable of selective transformation upon exposure to prescribed synergistic stimulation; b) forming a unfirm coating of desired thickness over the previously formed layer in preparation for forming the first subsequent layer of the three-dimensional object, including sweeping a smoothing member over the first previously formed layer at least once with a first smoothing member velocity; c) applying a prescribed pattern of synergistic stimulation to the building material at the working surface to transform at least a portion of the building material to form the first subsequent layer; d) forming a unfirm coating of desired thickness over the second previously formed layer in preparation for forming the second subsequent layer of the three-dimensional object including sweeping a smoothing member over the second previously formed layer at least once with a second smoothing member velocity different from the first smoothing member velocity; and c) applying a prescribed pattern of synergistic stimulation to the building material at the working surface to transform at least a portion of the building material to form the second subsequent layer.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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Method of and apparatus for making a three-dimensional product by stereolithography 원문보기

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Method of and apparatus for making a three-dimensional product by stereolithography 원문보기

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