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US 10,766,246 B2Granted
Additive manufacturing
AssigneeHewlett-Packard Development Company, L.P.
InventorsKrzysztof Nauka, Sivapackia Ganapathiappan, Lihua Zhao, Howard S. Tom, Yan Zhao, Hou T. Ng
Life of this patent
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Abstract
In one example, a non-transitory processor readable medium with instructions thereon that when executed cause an additive manufacturing machine to partially or completely bury a part in layers of molten build material.
Claims10
An additive manufacturing process, comprising:
- forming a first layer of powdered build material;
- dispensing a coalescing agent on to powdered build material in the first layer in a pattern corresponding to a first object slice;
- dispensing a coalescence modifier agent on to powdered build material in the first layer surrounding build material patterned with coalescing agent;
- solidifying build material in the first layer patterned with coalescing agent to form the first object slice;
- then
- melting some or all of the first object slice;
- after melting some or all of the first object slice, pressing a part into melted first object slice wherein some of the melted first object slice is displaced by the part;
- forming a second layer of powdered build material on the first object slice and covering the part;
- dispensing a coalescing agent on to powdered build material in the second layer in a pattern corresponding to a second object slice;
- dispensing a coalescence modifier agent on to powdered build material in the second layer surrounding build material patterned with coalescing agent;
- and
- solidifying build material in the second layer patterned with coalescing agent to form the second object slice covering the part.
9 more elements
A tangible non-transitory processor readable medium having instructions thereon that when executed cause an additive manufacturing machine to:
- form a first layer of powdered build material;
- dispense a coalescing agent on to powdered build material in the first layer in a pattern corresponding to a first object slice;
- dispense a coalescence modifier agent on to powdered build material in the first layer surrounding build material patterned with coalescing agent;
- solidify build material in the first layer patterned with coalescing agent to form the first object slice;
- then
- melt some or all of the first object slice;
- after melting some or all of the first object slice, press a part into melted first object slice wherein some of the melted first object slice is displaced by the part;
- form a second layer of powdered build material on the first object slice and covering the part;
- dispense a coalescing agent on to powdered build material in the second layer in a pattern corresponding to a second object slice;
- dispense a coalescence modifier agent on to powdered build material in the second layer surrounding build material patterned with coalescing agent;
- and
- solidify build material in the second layer patterned with coalescing agent to form the second object slice covering the part.
9 more elements
An additive manufacturing machine, comprising:
- a first device to layer powdered build material;
- a second device to dispense a coalescing agent on to powdered build material;
- a third device to dispense a coalescence modifier agent on to powdered build material;
- a light source to apply light energy to build material;
- a fourth device to place parts;
- a heater;
- and
- a controller to execute instructions to:
- cause the first device to form a first layer of powdered build material;
- cause the second device to dispense a coalescing agent on to powdered build material in the first layer in a pattern corresponding to a first object slice;
- cause the third device to dispense a coalescence modifier agent on to powdered build material in the first layer surrounding build material patterned with coalescing agent;
- cause the light source to apply light energy to build material in the first layer patterned with coalescing agent to form the first object slice;
- then
- cause the heater to melt some or all of the first object slice;
- after melting some or all of the first object slice, cause the fourth device to press a part into melted first object slice wherein some of the melted first object slice is displaced by the part;
- cause the first device to form a second layer of powdered build material on the first object slice and covering the part;
- cause the second device to dispense a coalescing agent on to powdered build material in the second layer in a pattern corresponding to a second object slice;
- cause the third device to dispense a coalescence modifier agent on to powdered build material in the second layer surrounding build material patterned with coalescing agent;
- and
- cause the light source to apply light energy to build material in the second layer patterned with coalescing agent to form the second object slice covering the part.
17 more elements
Dependencies are inferred from the claim text.