Producing ultra-fine-grained materials using additive manufacturing

Patent metadata

Field	Value
Publication number	US-12172213-B2
Application number	US-202218086944-A
Country	US
Kind code	B2
Filing date	Dec 22, 2022
Priority date	Feb 4, 2022
Publication date	Dec 24, 2024
Grant date	Dec 24, 2024

Abstract

A method is provided for producing ultra-fine-grained materials using additive manufacturing. The method includes commanding, by a controller, a laser device to produce a plurality of optical pulses to a base material to add an additive material to the base material. The method further includes commanding, by the controller, a vibration mechanism to vibrate the base material as the plurality of optical pulses are being applied to the base material forming fine equiaxed grains with random crystallographic texture in the base material.

First claim

What is claimed is:

1. A method for producing ultra-fine-grained materials using additive manufacturing, the method comprising:
commanding, by a controller, a pulsed laser to produce a plurality of optical pulses to a base material to add an additive material to the base material in a melt pool of the base material;
commanding, by the controller, a vibration mechanism to vibrate the base material as the plurality of optical pulses are being applied to the base material forming fine equiaxed grains with random crystallographic texture in the base material; and
commanding, by the controller, an ultrasonic pulsed laser that follows the pulsed laser that is applying the plurality of optical pulses to apply ultrasonic vibrations to a melt of the melt pool of the base material.

2. The method of claim 1 , wherein the laser device is a pulsed laser.

3. The method of claim 1 , wherein the vibration mechanism is an array of ultrasonic transducers and wherein the controller commands the array of ultrasonic transducers to vibrate the base material in a first direction.

4. The method of claim 3 , wherein the first direction is a vertical direction.

5. The method of claim 1 , wherein the vibration mechanism is a table vibrator and wherein the controller commands the table vibrator to vibrate the base material in at least one of a second direction or a third direction.

6. The method of claim 5 , wherein the second direction is a lateral direction.

7. The method of claim 5 , wherein the third direction is a longitudinal direction.

8. The method of claim 1 , further comprising:
commanding, by the controller, an additive powder feeder to preheat the additive material prior to being added to the base material.

Assignees

• Goodrich Corp

Inventors

• Borkowski Luke B
• Staroselsky Alexander
• Acharya Ranadip
• Mironets Sergey

Classifications

• B22F12/13

  to preheat the material · CPC title

• B22F12/30

  Platforms or substrates · CPC title

• B22F12/43

  pulsed; frequency modulated · CPC title

• B33Y40/00

  Auxiliary operations or equipment, e.g. for material handling · CPC title

• B33Y30/00

  Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title