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公开(公告)号：US20180297284A1
公开(公告)日：2018-10-18
申请号：US15892895
申请日：2018-02-09
申请人： Desktop Metal, Inc.
发明人： Ricardo Fulop , Robert Michael Shydo, JR. , Jonah Samuel Myerberg , Charles Edward Martin , Justin Cumming , Paul Hoisington , Emanuel M. Sachs , George Hudelson , Daniel Sachs , Jamison Go , Eric Wong , Alexander K. McCalmont
IPC分类号： B29C64/35 , B22F3/00 , B29C64/165 , B33Y10/00 , B33Y30/00
CPC分类号： B29C64/35 , B08B3/12 , B08B5/02 , B08B7/028 , B22F3/008 , B22F3/1055 , B22F2003/1046 , B22F2003/1056 , B22F2003/1058 , B22F2003/1059 , B22F2301/00 , B29C64/165 , B29C64/357 , B33Y10/00 , B33Y30/00 , B33Y40/00 , Y02P10/295
摘要： A system for separating objects within a stacked powder print bed of nested objects comprises a build box configured to contain the powder print bed. The build box has a build box top and a build box floor. The system further includes an elongated aperture formed in a side wall of the build box, and a de-powdering subsystem configured to mechanically and electrically engage the build box. A separating blade associated with the de-powdering subsystem is configured to be inserted through the elongated aperture and into the powder print bed between a top-most print bed layer of the nested objects and a second print bed layer directly below and contiguous with the top-most layer, thereby forming an isolated powder print bed between the separating blade and the build box top. The unbound powder may be agitated by various techniques and subsequently removed from the objects.
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公开(公告)号：US11759859B2
公开(公告)日：2023-09-19
申请号：US16999210
申请日：2020-08-21
申请人： Desktop Metal, Inc.
CPC分类号： B22F3/24 , B08B3/045 , B08B3/102 , B08B3/12 , B08B3/14 , B22F10/00 , B33Y40/20 , B22F2003/247
摘要： Techniques for depowdering in additive fabrication are provided. According to some aspects, techniques are provided that separate powder from additively fabricated parts through liquid immersion of the parts. Motion of the liquid, such as liquid currents, may dislodge or otherwise move powder away from additively fabricated parts to which it is adhered or otherwise proximate to. The liquid may also provide a vehicle to carry away powder from the additively fabricated parts. Removed powder may be filtered or otherwise separated from the liquid to allow recirculation of the liquid to the parts and/or to enable re-use of the powder in subsequent additive fabrication processes. Techniques for depowdering through liquid immersion may be automated, thereby mitigating challenges associated with manual depowdering operations.
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公开(公告)号：US10543643B2
公开(公告)日：2020-01-28
申请号：US16456123
申请日：2019-06-28
申请人： Desktop Metal, Inc.
发明人： Daniel Sachs , Jamison Go , Robert J. Nick
IPC分类号： B29C64/35 , B22F3/00 , B29C64/165 , B33Y10/00 , B22F3/105 , B33Y40/00 , B08B3/12 , B08B5/02 , B08B7/02 , B33Y30/00 , B29C64/357 , B22F3/10
摘要： According to some aspects, a de-powdering subsystem for an additive fabrication system is described. The de-powdering subsystem may comprise a bath subsystem. The bath subsystem may comprise a reservoir configured to contain a liquid and to accept objects to be de-powdered into the liquid, and an agitation facility configured to cause currents within the liquid. The agitator facility may be at least one of (i) a pump configured to circulate the liquid within the reservoir, (ii) a heating element configured to generate convection currents in the liquid, and (iii) a stirrer driven through a linkage to a motor. The bath subsystem may comprise at least one ultrasonic transducer configured to apply ultrasonic vibrations to the liquid within the reservoir.
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4.发明公开公开(公告)号：US20240139806A1
公开(公告)日：2024-05-02
申请号：US18363441
申请日：2023-08-01
申请人： Desktop Metal, Inc.
CPC分类号： B22F3/24 , B08B3/045 , B08B3/102 , B08B3/12 , B08B3/14 , B22F10/00 , B33Y40/20 , B22F2003/247
摘要： Techniques for depowdering in additive fabrication are provided. According to some aspects, techniques are provided that separate powder from additively fabricated parts through liquid immersion of the parts. Motion of the liquid, such as liquid currents, may dislodge or otherwise move powder away from additively fabricated parts to which it is adhered or otherwise proximate to. The liquid may also provide a vehicle to carry away powder from the additively fabricated parts. Removed powder may be filtered or otherwise separated from the liquid to allow recirculation of the liquid to the parts and/or to enable re-use of the powder in subsequent additive fabrication processes. Techniques for depowdering through liquid immersion may be automated, thereby mitigating challenges associated with manual depowdering operations.
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公开(公告)号：US20210060651A1
公开(公告)日：2021-03-04
申请号：US16999210
申请日：2020-08-21
申请人： Desktop Metal, Inc.
摘要： Techniques for depowdering in additive fabrication are provided. According to some aspects, techniques are provided that separate powder from additively fabricated parts through liquid immersion of the parts. Motion of the liquid, such as liquid currents, may dislodge or otherwise move powder away from additively fabricated parts to which it is adhered or otherwise proximate to. The liquid may also provide a vehicle to carry away powder from the additively fabricated parts. Removed powder may be filtered or otherwise separated from the liquid to allow recirculation of the liquid to the parts and/or to enable re-use of the powder in subsequent additive fabrication processes. Techniques for depowdering through liquid immersion may be automated, thereby mitigating challenges associated with manual depowdering operations.
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公开(公告)号：US10406751B2
公开(公告)日：2019-09-10
申请号：US15892895
申请日：2018-02-09
申请人： Desktop Metal, Inc.
发明人： Ricardo Fulop , Robert Michael Shydo , Jonah Samuel Myerberg , Charles Edward Martin , Justin Cumming , Paul Hoisington , Emanuel M. Sachs , George Hudelson , Daniel Sachs , Jamison Go , Eric Wong , Alexander K. McCalmont
IPC分类号： B29C64/35 , B22F3/00 , B29C64/165 , B33Y10/00 , B33Y30/00 , B22F3/105 , B33Y40/00 , B08B3/12 , B08B5/02 , B08B7/02 , B29C64/357 , B22F3/10
摘要： A system for separating objects within a stacked powder print bed of nested objects comprises a build box configured to contain the powder print bed. The build box has a build box top and a build box floor. The system further includes an elongated aperture formed in a side wall of the build box, and a de-powdering subsystem configured to mechanically and electrically engage the build box. A separating blade associated with the de-powdering subsystem is configured to be inserted through the elongated aperture and into the powder print bed between a top-most print bed layer of the nested objects and a second print bed layer directly below and contiguous with the top-most layer, thereby forming an isolated powder print bed between the separating blade and the build box top. The unbound powder may be agitated by various techniques and subsequently removed from the objects.
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