Device and method for depositing a powder mixture for forming an object with composition gradients
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsOlivier Gillia, Basile Caillens
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Abstract
A device for depositing a mixture of powders to form an object with composition gradients, including: a plurality of tanks respectively configured to contain different powders; a powder mixer placed under the tanks and including a rotatably mounted mixing member; a plurality of powder dispensing mechanisms respectively cooperating with the tanks, and each configured to regulate mass flow rate of the powder escaping from a respective of the tanks towards the mixer; a powder mixture collector placed under the mixer; and a powder mixture dispenser placed under the collector.
Claims10
An installation for depositing a mixture of powders for forming an object with composition gradients, comprising:
- a device, mounted on means for initiating spatial movement, the device comprising:
- a plurality of tanks respectively configured to contain different powders;
- a powder collector under the plurality of tanks that collects respective powders of the plurality of tanks, the powder collector including a conical inner surface;
- a powder mixer placed under the powder collector, the powder mixer including a rotationally mounted mixing member and configured to be impacted by the powders from the plurality of tanks, the mixing member including a rod that passes through the powder collector along an axis of rotation of the mixing member;
- a plurality of means for dispensing powder respectively cooperating with the plurality of tanks, and each configured to regulate mass flow rate of powder escaping from a respective of the plurality of tanks towards the powder mixer;
- a powder mixture collector placed under the powder mixer and communicating with the powder mixer;
- and
- a powder mixture dispenser placed under the powder mixture collector and communicating with the powder mixture collector, and
- a control unit with which the means for initiating spatial movement, and each of the plurality of means for dispensing powder, are controlled,
- wherein the rotationally mounted mixing member includes a first powder impact surface for impact of the powders of a general conical shape with an axis corresponding to the axis of rotation of the mixing member,
- wherein the powder mixer includes a second powder impact surface of a general conical shape, laid out coaxially and facing the first powder impact surface, to form between the first powder impact surface, an interstice with a general conical shape, and
- wherein the powders fall from an annular space between the rod and the inner surface of the powder mixture collector into the interstice.
Dependencies are inferred from the claim text.