Fukui Prefectural Government

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IPC Class
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting 2
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM] 1
B22F 10/47 - Structures for supporting workpieces or articles during manufacture and removed afterwards characterised by structural features 1
B22F 12/67 - Blades 1
B29C 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof 1
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Pending 1
Registered / In Force 1
Found results for  patents

1.

THREE-DIMENSIONAL MOLDING METHOD

      
Document Number 03054512
Status In Force
Filing Date 2018-07-25
Open to Public Date 2018-10-02
Grant Date 2022-03-01
Owner
  • FUKUI PREFECTURAL GOVERNMENT (Japan)
  • MATSUURA MACHINERY CORPORATION (Japan)
Inventor
  • Morishita, Kazuyuki
  • Matsuda, Yuya
  • Midorikawa, Tetsushi

Abstract

To provide, a three-dimensional molding method for molding of an object to be molded and a support structure that is to support the object from below, a construction such that the support structure is efficiently removed from the object to be molded and base plate after molding, and virtually no hindrance to movement of the squeegee is produced. [Solution Means] A three-dimensional molding method in which a step of sintering a powder layer with a laser light or an electron beam after a flat surface has been formed by sliding of a squeegee against the powder layer is repeated in a prescribed number of times, and then the periphery is cut, in order to mold both the object 1 to be molded and a support structure 2 that supports the lower side of the object 1 from below and is intended to be removed after molding, wherein in the support structure 2, the upper parts of the struts 20 connected to the object 1 to be molded employ truncated circular conic shapes or partial truncated circular conic shapes that are reduced in diameter toward the top.

IPC Classes  ?

  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B29C 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof

2.

THREE-DIMENSIONAL MOLDING METHOD

      
Document Number 03145071
Status Pending
Filing Date 2018-07-25
Open to Public Date 2018-10-02
Owner
  • FUKUI PREFECTURAL GOVERNMENT (Japan)
  • MATSUURA MACHINERY CORPORATION (Japan)
Inventor
  • Matsuda, Yuya
  • Midorikawa, Tetsushi
  • Morishita, Kazuyuki

Abstract

A method is provided for three-dimensional molding of an object and removing a support structure from below the object after molding without hindering movement of a squeegee. A powder layer is sintered after a flat surface is formed by repeatedly sliding a squeegee against the powder layer, after which a periphery is cut for molding and removing the object. A lower side of the object is supported by a support structure. The support structure has upper struts with truncated circular conic shapes or partial truncated circular conic shapes, a middle partition plate that supports upper struts and lower supporting members supporting the middle partition plate.

IPC Classes  ?

  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 10/47 - Structures for supporting workpieces or articles during manufacture and removed afterwards characterised by structural features
  • B22F 12/67 - Blades