Powder removal enclosure for additively manufactured components

Patent metadata

Field	Value
Publication number	US-10189057-B2
Application number	US-201615205049-A
Country	US
Kind code	B2
Filing date	Jul 8, 2016
Priority date	Jul 8, 2016
Publication date	Jan 29, 2019
Grant date	Jan 29, 2019

Abstract

Various embodiments of the invention include an apparatus for removing particulates from the surface of a 3D printed workpiece. Various particular embodiments include a material removal apparatus having: an enclosure having a first inlet and a first outlet; a rotatable platform contained within the enclosure for positioning a 3D printed workpiece having particulate on a surface thereof; a pressurized fluid applicator connected to the first inlet and configured to selectively apply a pressurized fluid to the 3D printed workpiece; a vibration source configured to apply an adjustable vibratory frequency to at least one of the rotatable platform or the 3D printed workpiece; and a material reclamation unit connected to the first outlet configured to collect a material removed from the 3D printed workpiece.

First claim

What is claimed is:

1. A material removal apparatus comprising:
an enclosure having a first inlet and a first outlet;
a rotatable platform contained within the enclosure for positioning a 3D printed workpiece having particulate on a surface thereof;
a pressurized gas applicator connected to the first inlet and configured to selectively apply a pressurized gas to the 3D printed workpiece;
a vibration source configured to apply an adjustable vibratory frequency to at least one of the rotatable platform or the 3D printed workpiece;
a material reclamation unit connected to the first outlet configured to collect a material removed from the 3D printed workpiece;
an articulating arm connected to the pressurized gas applicator configured to adjust a position of the pressurized gas applicator relative to the 3D printed workpiece; and
a programmable logic controller (PLC) configured to adjust a position and an orientation of the rotatable platform, the applying of pressurized gas from the pressurized gas applicator, the position of the articulating arm, and the adjustable vibratory frequency of the vibration source based on a physical parameter of the 3D printed workpiece, wherein the PLC:
generates a pre-programmed movement pattern based on a geometry of the 3D printed workpiece; and
adjusts the articulating arm, the rotatable platform, and the position of the pressurized gas applicator according to the pre-programmed movement pattern.

2. The material removal apparatus of claim 1 , having a second inlet and a vacuum unit connected thereto for applying a vacuum to the 3D printed workpiece, wherein the PLC is communicatively connected to the vacuum unit, wherein the PLC adjusts the vacuum unit to provide a pulsing suction therefrom.

3. The material removal apparatus of claim 1 , wherein the vibration source includes a mechanical actuator, and wherein the PLC: generates a pre-programmed vibration pattern having a set of frequencies and a set of amplitudes; and adjusts the mechanical actuator to apply the adjustable vibratory frequency according to the pre-programmed vibration pattern.

4. The material removal apparatus of claim 1 , wherein the vibration source includes an acoustic frequency generator, and wherein the PLC: generates a pre-programmed vibration pattern having a set of frequencies and a set of amplitudes; and adjusts the mechanical actuator to apply the adjustable vibratory frequency according to the pre-programmed vibration pattern.

5. The material removal apparatus of claim 1 , wherein the pressurized fluid includes compressed air.

6. The material removal apparatus of claim 1 , wherein the material removed from the 3D printed workpiece includes powdered metal.

7. The material removal apparatus of claim 1 , wherein the material removed from the 3D printed workpiece includes powdered plastic.

8. The material removal apparatus of claim 1 , wherein the rotatable platform is rotatable on multiple axes and includes an adjustable fastener positioned within a complementary aperture of the 3D printed workpiece.

9. The material removal apparatus of claim 1 , wherein the vibration source applies a pulsing vibratory frequency.

10. An apparatus for removing metal particulates from a surface of a 3D printed workpiece manufactured using a direct laser melting (DMLM) process comprising:
an enclosure having a first inlet, a second inlet and a first outlet;
a rotatable platform contained within the enclosure for positioning the 3D printed workpiece having the metal particulates on the surface thereof;
a pressurized gas applicator connected to the first inlet and configured to selectively apply a pressurized gas to the 3D printed workpiece;
a vacuum unit connected to the second inlet and configured to selectively apply a vacuum to the 3D printed workpiece;
a vibration source configured to apply an adjustable vibratory frequency to at least one of the rotatable platform or the 3D printed workpiece;
a material reclamation unit connected to the first outlet configured to collect a material removed from the 3D printed workpiece;
an articulating arm rotatably coupled to an interior of the enclosure and connected to the pressurized gas applicator, the articulating arm configured to adjust a position of the pressurized gas applicator relative to the 3D printed workpiece; and
a programmable logic controller (PLC) configured to adjust a position and an orientation of the rotatable platform, the applying of pressurized gas from the pressurized gas applicator, the position of the articulating arm, and the adjustable vibratory frequency of the vibration source based on a physical parameter of the 3D printed workpiece, wherein the PLC: generates a pre-programmed movement pattern based on a geometry of the 3D printed workpiece; and adjusts the articulating arm, the rotatable platform, and the position of the pressurized gas applicator according to the pre-programmed movement pattern.

11. The material removal apparatus of claim 1 , wherein the articulating arm is rotatably coupled to an interior of the enclosure.

12. An apparatus for removing metal particulates from a surface of a 3D printed workpiece manufactured using a direct laser melting (DMLM) process, the apparatus comprising:
an enclosure having a first inlet, a second inlet and a first outlet;
a rotatable platform contained within the enclosure for positioning the 3D printed workpiece having the metal particulates on the surface thereof, wherein the rotatable platform includes an adjustable fastener positioned within a complementary aperture of the 3D printed workpiece;
a pressurized gas applicator connected to the first inlet and configured to selectively apply a pressurized gas to the 3D printed workpiece;
a vacuum unit connected to the second inlet and configured to selectively apply a vacuum. to the 3D printed workpiece;
a vibration source configured to apply an adjustable vibratory frequency to at least one of the rotatable platform or the 3D primed workpiece;
a material reclamation unit connected to the first outlet and configured to collect a material removed from the 3D printed workpiece;
an articulating arm connected to the pressurized gas applicator and configured to adjust a position of the pressurized gas applicator relative to the 3D printed workpiece; and
a programmable logic controller (PLC) configured to adjust a position and an orientation of the rotatable platform, the applying of pressurized gas from the pressurized gas applicator, the position of the articulating arm, the applying of the vacuum with the vacuum unit, and the adjustable vibratory frequency of the vibration source based on a physical parameter of the 3D printed workpiece, wherein the PLC: generates a pre-programmed movement pattern based on a geometry of the 3D printed workpiece; and adjusts the articulating arm, the rotatable platform, and the position of the pressurized gas applicator according to the pre-programmed movement pattern.

13. The apparatus of claim 12 , wherein the PLC adjusts the vacuum unit to provide a pulsing suction therefrom.

14. The apparatus of claim 12 , wherein the PLC: generates a pre-programmed vibration pattern having a set of frequencies and a set of amplitudes; and adjusts the vibration source to apply the adjustable vibratory frequency according to the pre-programmed vibration pattern.

15. The apparatus of claim 12 , wherein the pressurized fluid includes compressed air.

16. The apparatus of claim 12 , wherein the material removed from the 3D printed workpiece includes powdered metal.

17. The apparatus of claim 12

Assignees

• Gen Electric

Inventors

• Craft Tiffany Muller
• Crear Donnell Eugene
• Hart Kassy Moy
• Swanner Jr Archie Lee

Classifications

• B22F10/20

  Direct sintering or melting · CPC title

• B08B3/026 Primary

  Cleaning by making use of hand-held spray guns; Fluid preparations therefor · CPC title

• B08B3/006 Primary

  Cabinets or cupboards specially adapted for cleaning articles by hand · CPC title

• B22F12/37

  Rotatable · CPC title

• B22F10/68

  Cleaning or washing · CPC title