WO2023223171 - A PROCESS OF THREE-DIMENSIONAL PRINTING WITH SUPPORT STRUCTURES
National phase entry is expected:
Publication Number
WO/2023/223171
Publication Date
23.11.2023
International Application No.
PCT/IB2023/054961
International Filing Date
14.05.2023
Title **
[English]
A PROCESS OF THREE-DIMENSIONAL PRINTING WITH SUPPORT STRUCTURES
[French]
PROCÉDÉ D'IMPRESSION TRIDIMENSIONNELLE À STRUCTURES DE SUPPORT
Applicants **
THINKMETAL PRIVATE LIMITED
Inventors
DATTA, Shubhabrata
GHOSH, Sabyasachi
SHARMA, Arushi
Priority Data
202241022274
14.05.2022
IN
Application details
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International Searching Authority |
IP India
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2024 | |
| EPO | Filing, Examination, Granting | 11786 | |
| Japan | Filing, Examination, Granting | 1877 | |
| South Korea | Filing, Examination, Granting | 1539 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
21,966
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
The present invention introduces a solution to the challenges encountered when printing overhanging, fragile, and complex structures in Fused Filament Fabrication (FFF) metal three-dimensional (3D) printing by utilizing graphite as the material for support structures. In FFF metal 3D printing, selecting suitable support structures becomes problematic due to the requirement of a sintering capability matching that of the primary metal, easy removal of the support structure and no damage to the primary metal material. Graphite is chosen as the ideal material for support structures due to its compatible sintering window, thermal expansion properties, and ease of separation from the primary structure after sintering.[French]
La présente invention propose une solution aux défis rencontrés lors de l'impression de structures en surplomb, fragiles et complexes au cours de l'impression tridimensionnelle (3D) métallique de fabrication à filament fondu (FFF) grâce à l'utilisation de graphite en tant que matériau pour des structures de support. Au cours de l'impression 3D métallique FFF, la sélection de structures de support appropriées devient problématique en raison des exigences suivantes : capacité de frittage correspondant à celle du métal primaire, retrait aisé de la structure de support et absence de dommage du matériau métallique primaire. Le graphite est choisi en tant que matériau idéal pour des structures de support en raison de sa fenêtre de frittage compatible, de ses propriétés de dilatation thermique, et de sa facilité de séparation de la structure primaire après frittage.