Three-dimensional printed objects with regions of differing porosity
AssigneeHewlett-Packard Development Company, L.P.
InventorsBEN PON, JOHN SAMUEL DILIP JANGAM, CHANDRAKANT DURLABHBHAI PATEL
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Abstract
In one example in accordance with the present disclosure, an additive manufacturing system is described. The additive manufacturing system includes an additive manufacturing device to form a three-dimensional (3D) printed object with regions of differing porosity. The additive manufacturing system also includes a controller to form the 3D printed object. Specifically, by controlling ejection of a first binding agent onto a porous region and a non-porous region of the 3D printed object and controlling ejection of a second binding agent onto the non-porous region of the 3D printed object.
Claims15
An additive manufacturing system, comprising:
- an additive manufacturing device to form a three-dimensional (3D) printed object with regions of differing porosity;
- and
- a controller to form the 3D printed object by:
- controlling ejection of a first binding agent on a porous region and a non-porous region of the 3D printed object;
- and
- controlling ejection of a second binding agent on the non-porous region of the 3D printed object.
A method, comprising:
- forming slices of a three-dimensional (3D) printed object with regions of differing porosity by sequentially:
- depositing a powder build material;
- ejecting a first binding agent onto a porous region and a non-porous region of the 3D printed object;
- ejecting a second binding agent onto the non-porous region of the 3D printed object;
- and
- heating the powder build material to a temperature between a melting temperature of particles in the second binding agent and a melting temperature of particles in the first binding agent.
A non-transitory machine-readable storage medium encoded with instructions executable by a processor, the machine-readable storage medium comprising instructions to:
- determine a porous region of a three-dimensional (3D) object to be printed;
- determine a target porosity for the porous region;
- determine a non-porous region of the 3D object to be printed;
- calculate object forming instructions for an additive manufacturing device to form the 3D object based on the target porosity, wherein the object forming instructions indicate:
- a quantity of a first binding agent to eject in the porous region and the non-porous region;
- and
- a quantity of a second binding agent to eject in the non-porous region based on the target porosity, wherein the first binding agent has a lower melting temperature than the second binding agent;
- and
- pass the object forming instructions to the additive manufacturing device.
Dependencies are inferred from the claim text.