Apparatuses, systems and methods for three-dimensional printing
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B23K-026/346
B22F-003/105
B28B-001/00
B33Y-010/00
B33Y-030/00
B33Y-050/02
B28B-017/00
B23K-026/12
B23K-026/34
C22C-038/02
C22C-038/44
C22C-038/58
C04B-035/64
B22F-007/00
출원번호
US-0744955
(2015-06-19)
등록번호
US-9403235
(2016-08-02)
발명자
/ 주소
Buller, Benyamin
Milshtein, Erel
Seelinger, Sherman
출원인 / 주소
VELO3D, INC.
대리인 / 주소
Wilson Sonsini Goodrich & Rosati
인용정보
피인용 횟수 :
19인용 특허 :
176
초록▼
The present disclosure provides three-dimensional (3D) objects, 3D printing processes, as well as methods, apparatuses and systems for the production of a 3D object. Methods, apparatuses and systems of the present disclosure may reduce or eliminate the need for auxiliary supports. The present disclo
The present disclosure provides three-dimensional (3D) objects, 3D printing processes, as well as methods, apparatuses and systems for the production of a 3D object. Methods, apparatuses and systems of the present disclosure may reduce or eliminate the need for auxiliary supports. The present disclosure provides three dimensional (3D) objects printed utilizing the printing processes, methods, apparatuses and systems described herein.
대표청구항▼
1. A method for generating a three-dimensional object suspended in a powder bed, comprising: (a) providing a powder bed in an enclosure, wherein the powder bed comprises individual particles formed of a powder material selected from the group consisting of an elemental metal, metal alloy, ceramic, a
1. A method for generating a three-dimensional object suspended in a powder bed, comprising: (a) providing a powder bed in an enclosure, wherein the powder bed comprises individual particles formed of a powder material selected from the group consisting of an elemental metal, metal alloy, ceramic, and an allotrope of elemental carbon;(b) generating the three-dimensional object from a portion of the powder bed, wherein upon generation the three-dimensional object is suspended anchorlessly in the powder bed; and(c) leveling an exposed surface of the powder bed, wherein during the leveling, the three-dimensional object suspended anchorlessly in the powder bed is displaced horizontally by about 300 micrometers or less. 2. The method of claim 1, wherein the powder bed is devoid of a supporting scaffold substantially enclosing the three-dimensional object. 3. The method of claim 1, wherein in (c), the three-dimensional object is displaced horizontally by about 20 micrometers or less. 4. The method of claim 1, wherein the powder material is devoid of at least two metals that are present at a ratio that forms a eutectic alloy. 5. The method of claim 1, wherein the powder material comprises at most a metal that is substantially of a single elemental metal composition. 6. The method of claim 1, wherein the powder material comprises a metal alloy that is substantially of a single metal alloy composition. 7. The method of claim 1, wherein the three-dimensional object is devoid of auxiliary support. 8. The method of claim 1, wherein during the leveling, the three-dimensional object protrudes from the exposed surface. 9. The method of claim 1, wherein during generation, the three-dimensional object is devoid of auxiliary support. 10. The method of claim 1, wherein providing the powder bed in (a) comprises dispensing the powder material, wherein the leveling in (c) comprises removing the powder material, and wherein the removing is synchronized with the dispensing to form an exposed surface of the powder bed, which exposed surface is substantially planar. 11. The method of claim 1, wherein providing the powder bed in (a) comprises providing one or more layers of powder material, and further comprising controlling a height of the one or more layers of powder material. 12. The method of claim 1, wherein providing the powder bed in (a) comprises providing one or more layers of powder material, and wherein the one or more layers of powder material are substantially planar. 13. The method of claim 1, wherein providing the powder bed in (a) comprises dispensing the individual particles of the powder material though an exit opening port disposed above the powder bed. 14. The method of claim 13, wherein the exit opening port is moving laterally along the exposed surface of the powder bed. 15. The method of claim 1, wherein providing the powder bed in (a) comprises dispensing the powder material laterally along an exposed surface of the powder bed from a position that is separated from the exposed surface by a gap, which gap comprises a gas. 16. The method of claim 15, further comprising regulating a height of the gap. 17. The method of claim 16, wherein regulating the height of the gap comprises optically regulating. 18. The method of claim 1, wherein the leveling in (c) comprises laminarly moving the powder material away from the powder bed. 19. The method of claim 18, wherein the laminarly moving comprises flowing a gas under laminar flow. 20. The method of claim 1, wherein leveling the exposed surface of the powder bed in (c) comprises (i) shearing the powder bed with a blade or air knife, or (ii) attracting the powder material away from the powder bed. 21. The method of claim 20, wherein leveling the exposed surface of the powder bed in (c) comprises shearing the powder bed with a blade or air knife. 22. The method of claim 20, wherein leveling the exposed surface of the powder bed in (c) comprises attracting the powder material away from the powder bed. 23. The method of claim 22, wherein the attracting comprises using vacuum, magnetic force, or electrostatic force. 24. The method of claim 22, wherein the attracting comprises using vacuum suction. 25. The method of claim 1, wherein providing the powder bed in (a) comprises vibrating and dispensing the powder material from a powder dispenser. 26. The method of claim 25, further comprising vibrating at least a portion of the powder dispenser to regulate an amount of the powder material dispensed from the powder dispenser. 27. The method of claim 1, wherein (b) comprises fully melting the individual particles of the portion of the powder material. 28. The method of claim 1, wherein the powder material is selected from the group consisting of an elemental metal, metal alloy, and an allotrope of elemental carbon. 29. The method of claim 1, wherein in (b), at least a portion of a remainder of the powder bed is at ambient temperature while the three-dimensional object is generated from the portion of the powder bed.
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이 특허에 인용된 특허 (176)
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