Abrégé

A method for controlling introduction of different kinds of materials for lamination includes: a tool path generating step of slicing three-dimensional image data into multiple slices and determining a nozzle movement path; a sensitivity applying step of deriving the sensitivity of different kinds of materials with regard to an objective function through numerical analysis and applying same to the three-dimensional image data or tool path; and a lamination control step of supplying, mixing, and laminating different kinds of materials. The sensitivity applying step includes: an objective function designating step of determining an objective function according to the target of optimization of physical characteristics held by the shape of three-dimensional image data; a numerical analysis step of deriving the sensitivity regarding materials by performing numerical analysis according to the objective function; and a mapping step of mapping the sensitivity regarding materials to the three-dimensional image data or tool path.

Classes IPC  ?

• B22F 10/85 - Acquisition ou traitement des données pour la commande ou la régulation de procédés de fabrication additive
• B22F 10/25 - Dépôt direct de particules métalliques, p. ex. dépôt direct de métal [DMD] ou mise en forme par laser [LENS]
• B22F 12/58 - Moyens d’alimentation en matériau, p. ex. têtes pour modifier la composition du matériau, p. ex. en mélangeant
• B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive

Abrégé

The present invention relates to a method for forming a multi-material structure having improved durability through metal additive manufacturing, the method comprising: a step for supplying a first material onto a surface through a nozzle that moves along a tool path, and melting the first material to laminate a first layer; and a step for supplying a second material onto another surface through a nozzle that moves along a tool path, and melting the second material to laminate a second layer, wherein the first layer is formed as a metal layer and the second layer is formed as a metal oxide layer.

Classes IPC  ?

• B22F 10/12 - Formation d’un corps vert par photopolymérisation, p. ex. stéréolithographie [SLA] ou traitement numérique de la lumière [DLP]
• B22F 10/22 - Dépôt direct de métal fondu
• B22F 12/53 - Buses
• B22F 10/32 - Commande ou régulation des opérations de l’atmosphère, p. ex. de la composition ou de la pression dans une chambre de fabrication
• B33Y 10/00 - Procédés de fabrication additive
• B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
• B33Y 80/00 - Produits obtenus par fabrication additive

Abrégé

The present invention relates to a method for controlling introduction of different kinds of materials for lamination and, more specifically, to a method for controlling introduction of different kinds of materials for lamination, the method comprising: a tool path generating step of slicing provided three-dimensional image data into multiple slices and determining a nozzle movement path; a sensitivity applying step of deriving the sensitivity of different kinds of materials with regard to an objective function through numerical analysis and applying same to the three-dimensional image data or tool path; and a lamination control step of supplying, mixing, and laminating different kinds of materials. The sensitivity applying step comprises: an objective function designating step of determining an objective function according to the target of optimization of physical characteristics held by the shape of three-dimensional image data; a numerical analysis step of deriving the sensitivity regarding materials by performing numerical analysis according to the objective function; and a mapping step of mapping the sensitivity regarding materials to the three-dimensional image data or tool path. Accordingly, a tool path is generated by mapping the result of numerical analysis, and introduced materials are changed in real time according to the result of numerical analysis through a physical characteristic value database regarding materials used for lamination or the like. Introduced materials, which have conventionally been divided with regard to respective layers, can be changed in real time such that process defects are removed from an object generated through lamination with a 3D printer, and target physical characteristics can be implemented with minimized errors.

Classes IPC  ?

• B22F 12/58 - Moyens d’alimentation en matériau, p. ex. têtes pour modifier la composition du matériau, p. ex. en mélangeant
• B22F 12/53 - Buses
• B22F 12/55 - Moyens multiples d’alimentation en matériau
• B22F 12/90 - Moyens de commande ou de régulation des opérations, p. ex. caméras ou capteurs
• B22F 10/25 - Dépôt direct de particules métalliques, p. ex. dépôt direct de métal [DMD] ou mise en forme par laser [LENS]
• B33Y 10/00 - Procédés de fabrication additive
• B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
• B33Y 50/00 - Acquisition ou traitement de données pour la fabrication additive
• B33Y 70/10 - Composites de différents types de matériaux, p. ex. mélanges de céramiques et de polymères ou mélanges de métaux et de biomatériaux