Printing a multi-structured 3d object
AssigneeHewlett-Packard Development Company, L.P.
InventorsLihua Zhao, Yan Zhao, Hou T. Ng
Life of this patent
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Abstract
In an example implementation, a method of printing a multi-structured three-dimensional (3D) object includes forming a layer of sinterable material. The method includes processing a first portion of the sinterable material using a first set of processing parameters and processing a second portion of the sinterable material using a second set of processing parameters. The processed first and second portions form, respectively, parts of a first and second structure of a multi-structured 3D object.
Claims15
A method of printing a multi-structured three-dimensional (3D) object comprising:
- depositing a first group of layers of sinterable material onto a fabrication bed;
- depositing a second group of layers of sinterable material onto the fabrication bed;
- applying a non-carbon black-based, colored, energy absorbing fusing agent to each layer in the first group of layers and to a perimeter area of each layer in the second group of layers;
- applying a carbon black-based energy absorbing fusing agent onto an interior area of each layer in the second group of layers;
- and,
- by applying radiation to each layer of the first and second groups of layers, forming a shell structure from the first group of layers and the perimeter areas of the second group of layers, the shell structure having a color that matches the colored fusing agent, and forming a core structure from the interior areas of the second group of layers.
A non-transitory machine-readable storage medium storing instructions that when executed by a processor of a three-dimensional (3D) printing device, cause the 3D printing device to:
- form a multi-structured 3D object from layers of sinterable material by applying energy absorbing fusing agent and radiation thereto, the multi-structured 3D object comprising an internal core structure surrounded by an external shell structure;
- apply a carbon black-based energy absorbing fusing agent and radiation to internal core structure layers to form the internal core structure;
- and,
- apply a non-carbon black-based, colored, energy absorbing fusing agent and radiation to external shell structure layers to form the external shell structure.
A method of printing a multi-structured three-dimensional (3D) object comprising:
- depositing a first group, a second group, and a third group, of layers of sinterable material onto a fabrication bed to form a multi-structured object having an internal core structure surrounded by an external shell structure;
- forming a bottom portion of the external shell structure by applying a non-carbon black-based, colored, energy absorbing fusing agent to the first group of layers;
- forming side portions of the external shell structure by applying the non-carbon black-based, colored, energy absorbing fusing agent to perimeter areas of the second group of layers that surround internal areas of the second group of layers;
- forming a top portion of the external shell structure by applying the non-carbon black-based, colored, energy absorbing fusing agent to the third group of layers;
- and,
- forming the internal core structure by applying a carbon black-based energy absorbing fusing agent to the internal areas of the second group of layers.
Dependencies are inferred from the claim text.