Systems and methods for powder bed density measurement and control for additive manufacturing
AssigneeArc Impact Acquisition Corporation
InventorsGeorge Hudelson, Paul Hoisington, Richard Remo Fontana, Emanuel Sachs, Christopher Anthony Craven, Matthew McCambridge
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Abstract
Systems and methods are disclosed for forming a three-dimensional object using additive manufacturing. One method includes depositing a first amount of powder material onto a powder print bed of a printing system, spreading the first amount of powder material across the powder print bed to form a first layer, measuring a density of powder material within the powder print bed, and adjusting a parameter of the printing system based on the measured density of the powder material within the powder print bed.
Claims14
A method of forming a three-dimensional object using additive manufacturing, the method comprising:
- depositing a first amount of metal powder material onto a powder print bed of a printing system;
- spreading the first amount of metal powder material across the powder print bed to form a first layer;
- measuring a density of the powder material within the powder print bed;
- and
- adjusting a parameter of the printing system based on the measured density of the metal powder material within the powder print bed, wherein adjusting the parameter of the printing system includes:
- determining an amount of binder material to be deposited on a second layer based on the measured density of the metal powder material within the powder print bed;
- depositing a second amount of metal powder material onto the first layer;
- depositing the amount of binder material on the second amount of metal powder material.
An additive manufacturing system for forming a three-dimensional object, the system comprising:
- a hopper configured to deposit powder material onto a powder print bed;
- a spreader configured to spread the deposited powder material to form a layer;
- a powder density measuring apparatus configured to measure a density of one or more accumulated powder material layers on the powder print bed;
- a controller configured to adjust a parameter of the system based on the measured density of the one or more accumulated powder material layers;
- and
- a print head configured to deposit an amount of binder material to at least one region of the layer,
- wherein the controller is configured to control the amount of binder material based on the measured density of the one or more accumulated powder material layers on the powder print bed.
An additive manufacturing system for forming a three-dimensional object, the system comprising:
- a hopper configured to deposit powder material onto a powder print bed;
- a spreader configured to spread the deposited powder material to form a layer;
- a powder density measuring apparatus configured to measure a density of one or more accumulated powder material layers on the powder print bed, wherein the powder density measuring apparatus is further configured to measure at least one of an inductance or a capacitance of the one or more accumulated powder material layers on the powder print bed;
- and
- a controller configured to adjust a parameter of the system based on the measured density of the one or more accumulated powder material layers.
Dependencies are inferred from the claim text.