WO2021250560A1 - Système de lit d'impression emboîté pour procédé de fabrication additive à base de poudre - Google Patents

Système de lit d'impression emboîté pour procédé de fabrication additive à base de poudre Download PDF

Info

Publication number
WO2021250560A1
WO2021250560A1 PCT/IB2021/055018 IB2021055018W WO2021250560A1 WO 2021250560 A1 WO2021250560 A1 WO 2021250560A1 IB 2021055018 W IB2021055018 W IB 2021055018W WO 2021250560 A1 WO2021250560 A1 WO 2021250560A1
Authority
WO
WIPO (PCT)
Prior art keywords
work
platform
print
bed
volume
Prior art date
Application number
PCT/IB2021/055018
Other languages
English (en)
Inventor
Vidyashankar C
Parivarthan REDDY B
Original Assignee
Vidyashankar C
Reddy B Parivarthan
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vidyashankar C, Reddy B Parivarthan filed Critical Vidyashankar C
Publication of WO2021250560A1 publication Critical patent/WO2021250560A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/245—Platforms or substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/141—Processes of additive manufacturing using only solid materials
    • B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/295—Heating elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing

Definitions

  • Present disclosure in general, relates to a field of additive manufacturing. Particularly, but not exclusively, the present disclosure discloses a print-bed system for powder-based additive manufacturing process. Further, embodiments of the disclosure disclose a nested print-bed system for the powder-based additive manufacturing process, such as a selective laser sintering process.
  • Selective laser sintering process is a powder-based additive manufacturing process.
  • powder of a requisite material type such as, but not limited to nylon powder, is used for producing articles of desired shape and configuration.
  • powder is laid out on a printing bed using a layering mechanism.
  • laser is focused onto the laid powder for selectively sintering of the powder in a specific pre-defined pattern.
  • several layers of powder are laid and sintered in the specific pre-defined pattern.
  • a nested print-bed system for powder based additive manufacturing process includes a first print- bed, which includes a first work-platform, movably supported on a base. Further, the system includes a second print-bed, which includes a second work-platform, supported on the base. The second print-bed is movably disposed within the first print-bed.
  • the second work-platform is structured to independently displace from a top position to at least one intermediate position to define a second work volume and, the first work-platform is structured to displace along with the second work- platform from the top position to the at least one intermediate position to define a first work volume, which is greater than the second work volume.
  • the first print-bed comprises a first body-portion supported on the base, the first body-portion is structured to enclose the first work-platform and the second print-bed.
  • the first work-platform is structured to displace along with the second print- bed from the top position to the at least one intermediate position to define the first work volume.
  • the second print-bed comprises a second body -portion, movably supported on the base, the second body -portion is structured to selectively divide the first work-platform and the second work-platform.
  • the second work-platform is structured to displace between the top position and the at least one intermediate position within the second body -portion to vary the capacity of the second work volume.
  • the first work-platform is defined with a cavity to receive the second work- platform.
  • first work-platform and the second work-platform are supported by at least one actuator for displacing the first work-platform and the second work -platform between the top position and the at least one intermediate positions.
  • the at least one actuator is one of a liner actuator and a rotary actuator.
  • the system includes a sealing arrangement positioned between each of the first work-platform and the first body-portion, and the second work-platform and the second body-portion.
  • the system includes one or more heating elements integrated with the first work-platform and the second work-platform, for heating the powder during additive manufacturing process.
  • Figure. 1 illustrates a sectional view of a nested print-bed system, in accordance with an embodiment of the present disclosure.
  • Figure. 2 illustrates the sectional view of the nested print-bed system with a second work- platform of a second print-bed displaced from a top-position, in accordance with an embodiment of the present disclosure.
  • Figures. 3 and 4 illustrates the sectional view of the nested print-bed system with a first work- platform and the second work-platform displaced in tandem from the top-position, in accordance with an embodiment of the present disclosure.
  • Figure. 5 illustrates the sectional view of the nested print -bed system with the first work- platform displaced to an intermediate position and the second work-platform displaced beyond the first work-platform to define both first work volume and second work volume, in accordance with an embodiment of the present disclosure.
  • FIG. 1 is an exemplary embodiment of the present disclosure, which illustrates a sectional view of a nested print-bed system (100) [hereinafter interchangeably used as system] for carrying out powder-based additive manufacturing process.
  • the powder-based additive manufacturing process may be, but not limited to a selective laser sintering process.
  • the nested print-bed system (100) may broadly include a base (110), a first print-bed (101) and a second print-bed (102).
  • the first print-bed (101) and the second print-bed (102) may be supported on the base (110), where the second print-bed (102) may be movably or despicably supported on the base (110).
  • Figure. 1 is an exemplary embodiment of the present disclosure, which illustrates a sectional view of a nested print-bed system (100) [hereinafter interchangeably used as system] for carrying out powder-based additive manufacturing process.
  • the powder-based additive manufacturing process may be, but not limited to a selective laser sintering process.
  • the second print-bed (102) may be movably disposed within the first print-bed (101), such that the second print-bed (102) may displace vertically within the first print-bed (101) between a top position and at least one intermediate position of a plurality of intermediate positions.
  • the second print- bed (102) may be concentrically disposed within the first print-bed (101).
  • the second print-bed (102) may be positioned at a substantially central portion of the first print- bed (101).
  • the second print-bed (102) may include a second body-portion (108), which may be movably supported on the base (110), and a second work-platform (104) which may movably supported on the base (110) and enclosed within the second body-portion (108).
  • the second work-platform (104) may be configured to independently displace from a top position to at least one intermediate position of the plurality of intermediate positions, to define a second work volume (113) for carrying out additive-manufacturing process.
  • the first print-bed (101) may include a first body-portion (105), which may be fixedly supported on the base (110) and, a first work-platform (103) which may be movably supported on the base (110) and enclosed within the first body-portion (105).
  • the first work-platform (103) may be configured to displace along with the second platform [thus, the second print-bed (102)] from the top position to the at least one intermediate position of the plurality of intermediate positions, to define a first work volume (111), which is greater than the second work volume (113), to carry out additive-manufacturing process.
  • each of the first body-portion (105) and the second body-portion (108) may include a plurality of walls defining, a substantially hollow rectangular configuration.
  • the same should not be construed as a limitation as the first body-portion (105) and the second body-portion (108) may be defined with any geometrical shapes such as but not limiting to cylindrical, circular, square and the like.
  • top position may be inferred as position of the first work -platform (103) and the second work-platform (104) at brim of the first body-portion (105) and the second body- portion (108) and the term “intermediate position” may be inferred as any position within the first body-portion (105) and the second body-portion (108), below the top position.
  • the second body -portion (108) may be structured to selectively divide the first work-platform (103) and the second work-platform (104), to define the second work volume (113).
  • the first work-platform (103), the second work-platform (104) and the second print-bed (102) may be movably supported on the base (110) through at least one actuator (112). That is, the first work-platform (103) and the second work-platform (104) [thus, the second print-bed (102)] may be vertically displacable between the top position and the at least one intermediate position by the at least one actuator (112).
  • the at least one actuator (112) may be but not limiting to a rotary-linear actuator and a linear actuator.
  • the rotary-linear actuator may a lead screw/ball screw, which may be coupled with the rotatory actuator.
  • the rotary actuator may be, but not limiting to an electric motor and the linear actuator may be but not limiting to a hydraulic actuator and a pneumatic actuator.
  • the first work-platform (103), the second work-platform (104) and the second print-bed (102) are supported by a pair of actuators and corresponding supporting columns or shafts.
  • the same should not be construed as a limitation as the first work-platform (103), the second work-platform (104) and the second print-bed (102) may be supported by more than a pair of actuators based on the requirement.
  • the second work-platform (104) may be configured to displace independent to the first work-platform (103), and the first work-platform (103) may be configured to displace in tandem with the second work-platform (104) [thus, the second print-bed (102)], based on the requirement.
  • Figure. 2 illustrates the sectional- view of the nested print-bed system (100) with the second print-bed (102) being displaced from the top position.
  • the second print-bed (102) may be displaced from the top position (as seen in Figure. 1) to at least one intermediate position of the plurality of intermediate positions.
  • the at least one actuator (112) associated with the second work-platform (104) may be operated to displace the second work-platform (104) from the top-position to at least one the intermediate position, within the second body-portion (108).
  • the second work- platform (104) may slide vertically downwards from the top position in engagement with the plurality of walls of the second print-bed (102).
  • This displacement of the second work-platform (104) from the top-position may define the second work volume (113) within the second body- portion (108) [thus, the second print-bed (102)], for carrying out additive-manufacturing process [i.e., sintering process].
  • the second work volume (113) defined, as a result of displacement of the second work-platform (104) within the second body-portion (108) of the second print-bed (102), may be substantially small and, thus aids in sintering of smaller components with optimum utilization of the powder, unlike conventional systems.
  • FIG. 3 illustrates the sectional-view of the nested print-bed system (100) with the first work-platform (103) and the second print-bed (102) [thus, the second work- platform (104)] displaced from the top position to at least one intermediate position.
  • both the first work-platform (103) and the second print-bed are displaced from the top position to at least one intermediate position.
  • the second work-platform (104) may be displaced from the top position (as seen in Figure. 1) to at least one intermediate position (as seen in Figure. 3).
  • the second work-platform (104) is received by the cavity defined in the first work-platform (103), and thus, forming the first work-platform (103), which may be relatively larger than the second work-platform (104), alone.
  • the common work-platform i.e., combination of the first work-platform
  • the at least one actuator (112) may be operated such that the first work-platform (103) and the second print-bed (102) are displaced in tandem, from the top position.
  • This displacement of the first work-platform (103) and the second print- bed (102) may define the first work volume (111) within the first body -portion (105) of the first print-bed (101), for carrying-out the sintering process.
  • the first work volume (111) defined due to displacement of the first work-platform (103) and the second print-bed (102) may be substantially larger than the second work volume (113) defined due to displacement of the second work-platform (104) alone, thus aids in sintering larger components.
  • the first work-platform (103) and the second print-bed (102) may be structured to further displace between the top position and at the at least one intermediate positions of the plurality of intermediate positions to vary capacity of the first work volume (111) during sintering process, such that components of larger lengths may be printed.
  • the second work-platform (104) may individually displace between the top position to at least one intermediate position of the plurality of intermediate positions to vary the capacity of the second work volume (113).
  • the first work-platform (103) and the second work-platform (102) may be structured such that, the second work-platform (102) may displace beyond the position of the first work-platform (103), thus facilitating in defining both first work volume (111) and the second work volume (113).
  • the first work-platform (103) and the second print-bed (102) may displace in tandem to one of the intermediate position within the first body-portion (105).
  • the second work-platform (104) may displace beyond the intermediate position [i.e., the position where the first work-platform (103) and the second print-bed (102) are displaced to], to one of the intermediate position within the second body- portion (108). This configuration thus, aids in defining both the first work-volume (111) and the second work-volume (113) simultaneously.
  • the nested print-bed system (100) including the first print-bed (101) and the second print-bed (102) is an exemplary embodiment and, the same cannot be construed as limitations, since the print-bed system (100) may include a plurality of print-beds, based on the requirement.
  • the nested print-bed system (100) may include a sealing arrangement [not shown in figures] positioned between the first work-platform (103) and the plurality of walls of the first body-portion (105), and the second work-platform (104) and the plurality of walls of the second body-portion (108).
  • the sealing arrangement is configured to prevent powder leakage through crevice between the work-platforms and the plurality of walls, during sintering process.
  • the nested print-bed system (100) includes one or more heating elements integrated with the first work-platform (103) and the second work-platform (104) for heating the powder during sintering process.
  • configuration of the nested print-bed system (100) aids in optimizing the utilization of powder, based on the components to be printed and, thus aids in reducing cost of printing process.
  • the configuration of the nested print-bed system (100) facilitates in better print quality due to better laser focusing during sintering process.
  • the at least one actuator (112) may be associated with a control unit, which may be stored with preset instructions. Upon receiving signal or a trigger, the control unit may activate the at least one actuator (112) for displacing the second work-platform (104) to define second work volume ( 113 ) or both the second work-platform (104) and the first work-platform (103) in tandem to define the first work volume (111), based on the requirement.
  • printing process on the smaller print-bed is faster, which results in faster manufacturing rate, unlike the conventional techniques which adapts larger work-platform even for printing smaller components.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Powder Metallurgy (AREA)

Abstract

La présente invention concerne un système de lit d'impression emboîté (100) pour un procédé de fabrication additive à base de poudre. Le système (100) comprend un premier lit d'impression (101) et un second lit d'impression (102), qui comprennent une première plateforme de travail (103) et une seconde plateforme de travail (104) respectivement, qui sont supportées de façon mobile par au moins un actionneur (112). La seconde plateforme de travail (104) est structurée pour se déplacer d'une position supérieure à au moins une position intermédiaire, et la seconde plateforme de travail (104) conjointement avec la première plateforme de travail (103) sont structurées pour se déplacer de la position supérieure à au moins une position intermédiaire pour définir un second volume de travail (113) et un premier volume de travail (111), respectivement, où le premier volume de travail (111) est plus grand que le second volume de travail (113). La configuration du système (100) facilite la définition d'un volume de travail de différentes tailles pour des composants d'impression de différentes tailles, avec une utilisation optimale de la poudre et réduisant ainsi au minimum le coût de fabrication.
PCT/IB2021/055018 2020-06-08 2021-06-08 Système de lit d'impression emboîté pour procédé de fabrication additive à base de poudre WO2021250560A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202041023893 2020-06-08
IN202041023893 2020-06-08

Publications (1)

Publication Number Publication Date
WO2021250560A1 true WO2021250560A1 (fr) 2021-12-16

Family

ID=78847095

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2021/055018 WO2021250560A1 (fr) 2020-06-08 2021-06-08 Système de lit d'impression emboîté pour procédé de fabrication additive à base de poudre

Country Status (1)

Country Link
WO (1) WO2021250560A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022115097A1 (de) 2022-06-15 2023-12-21 Nikon Slm Solutions Ag Hubvorrichtung für eine Trägereinrichtung einer Anlage zur additiven Herstellung eines dreidimensionalen Werkstücks

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2289652A1 (fr) * 2009-08-25 2011-03-02 BEGO Medical GmbH Dispositif et procédé de fabrication générative
US8206637B2 (en) * 2008-10-14 2012-06-26 The Boeing Company Geometry adaptive laser sintering system
WO2018194614A1 (fr) * 2017-04-20 2018-10-25 Hewlett-Packard Development Company, L.P. Imprimante 3d et module de construction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8206637B2 (en) * 2008-10-14 2012-06-26 The Boeing Company Geometry adaptive laser sintering system
EP2289652A1 (fr) * 2009-08-25 2011-03-02 BEGO Medical GmbH Dispositif et procédé de fabrication générative
WO2018194614A1 (fr) * 2017-04-20 2018-10-25 Hewlett-Packard Development Company, L.P. Imprimante 3d et module de construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022115097A1 (de) 2022-06-15 2023-12-21 Nikon Slm Solutions Ag Hubvorrichtung für eine Trägereinrichtung einer Anlage zur additiven Herstellung eines dreidimensionalen Werkstücks

Similar Documents

Publication Publication Date Title
WO2021250560A1 (fr) Système de lit d'impression emboîté pour procédé de fabrication additive à base de poudre
EP0554637A1 (fr) Céramique d'oxyde de zirconium et un procédé pour sa production
US20100043304A1 (en) Diamond tool and method of manufacturing the same
KR20170132714A (ko) 적층 가공 방법, 대상물 데이타 처리 방법, 데이타 캐리어, 대상물 데이타 프로세서 및 제조된 대상물
US7703190B2 (en) Tooling system and method
EP1701821B1 (fr) Support de piece reconfigurable
CN104708812B (zh) 立体打印装置以及打印头组件
EP2666614A1 (fr) Procédé de production d'un article vert en trois dimensions
CN111036902B (zh) 一种激光选区增材制造的多孔成形方法
JP2003181941A5 (fr)
JP2007216595A (ja) 三次元造形製品の製造装置
EP3649659B1 (fr) Procédé de production d'un aimant permanent à élément de terres rares lourdes intergranulaire
KR102390703B1 (ko) 분말 재료로부터 구성부를 적층 제조하기 위한 방법
US7194887B2 (en) Press for holding and pressing a workpiece
US11404180B2 (en) Method for producing collimators and other components from neutron absorbing materials using additive manufacturing
EA012398B1 (ru) Способ и устройство для изготовления заливочной формы и способ и устройство для изготовления изделия с использованием заливочной формы
CN114260467A (zh) 一种基于巴西果效应的功能梯度材料制备装置及其制备方法
WO2018000018A1 (fr) Fabrication de panneaux structuraux
EP1566456B1 (fr) Materiau composite, son procede de production et element utilisant ledit materiau
EP1658914B1 (fr) Procédé de fabrication de plaquette de coupe et utilisation d'un appareil d'alignement d'un compact vert
JP2016189398A (ja) 拡散処理装置およびそれを用いたｒ−ｔ−ｂ系焼結磁石の製造方法
EP3558566A1 (fr) Procédé de fabrication par couches d'une ébauche crue avec une matière pulvérulente à l'aide d'inserts de disposition définie
KR20160088170A (ko) ＴｉＣ-ＦｅＡｌ 초경재료 및 그 제조방법
US11903134B2 (en) Screen printer including 3D printed support block for supporting article during printing
CN213891283U (zh) 一种轴径大小可调节的旋转基轴

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21821199

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21821199

Country of ref document: EP

Kind code of ref document: A1