IP Library Granted Patent US 11,192,296
Granted Patent B2
US 11,192,296 · App. 16/686,951 · Granted Dec 7, 2021

Additive manufacturing process distortion management

Inventors: Sergey Mironets (Charlotte, NC); Lexia Kironn (Rocky Hill, CT); Joe Ott (Enfield, CT); Louis Porretti (Plantsville, CT)
Assignee: Raytheon Technologies Corporation
B29C64/153B22F10/20B29C64/214B33Y10/00B33Y30/00B33Y50/02B22F10/30
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Quick Facts
Patent No.
US 11,192,296
App. No.
16/686,951
Granted
Dec 7, 2021
Kind
B2
Abstract

A method is provided for additive manufacturing. This method includes monitoring a current to a recoater blade. The monitored current is compared to a predetermined current. An operation is initiated in response to the monitored current exceeding the predetermined current. Another method for additive manufacturing includes comparing a movement of a recoater blade to an expected movement. A single exposure sequence is initiated in response to movement of the recoater blade being different than an expected movement. An additive manufacturing system is also provided which includes a recoated blade and a control. The control is operable to identify resistance to movement of the recoater blade.

Claims (27)

1. A method of additive manufacturing, comprising:

comparing a movement of a recoater blade to an expected movement; and

initiating a single exposure sequence and an impact treatment in response to movement of the recoater blade being different than an expected movement.

2. The method as recited in claim 1 , wherein the single exposure sequence restrains movement of the recoater blade.

3. The method as recited in claim 2 , wherein the single exposure sequence operates a laser.

4. The method as recited in claim 2 , wherein the single exposure sequence operates an electron beam.

5. The method as recited in claim 1 , further comprising:

monitoring a current to the recoater blade to provide a monitored current;

comparing the monitored current to a predetermined current; and

identifying where the monitored current exceeds the predetermined current.

6. The method as recited in claim 5 , wherein the initiating the single exposure sequence and the impact treatment comprises initiating the single exposure sequence and the impact treatment where the monitored current is identified as exceeding the predetermined current.

7. The method as recited in claim 1 , further comprising identifying a location of resistance to the movement of the recoater blade.

8. The method as recited in claim 1 , wherein the impact treatment comprises an ultrasonic impact treatment.

9. A method of additive manufacturing, comprising:

comparing a movement of a recoater blade to an expected movement; and

initiating an impact treatment in response to movement of the recoater blade being different than an expected movement.

10. The method of claim 9 , wherein the impact treatment comprises an ultrasonic impact treatment.

11. The method of claim 9 , further comprising initiating a single exposure sequence in response to the movement of the recoater blade being different than the expected movement.

12. The method of claim 11 , wherein the single exposure sequence restrains movement of the recoater blade.

13. The method of claim 11 , wherein the single exposure sequence operates a laser.

14. The method of claim 11 , wherein the single exposure sequence operates an electron beam.

15. The method of claim 9 , further comprising:

monitoring a current to the recoater blade to provide a monitored current;

comparing the monitored current to a predetermined current; and

identifying where the monitored current exceeds the predetermined current.

16. The method of claim 15 , wherein the initiating the impact treatment comprises initiating the impact treatment where the monitored current is identified as exceeding the predetermined current.

17. The method of claim 9 , further comprising identifying a location of resistance to the movement of the recoater blade.

Assignments (4)
CHANGE OF NAME Recorded Jul 27, 2023
From: RAYTHEON TECHNOLOGIES CORPORATION
To: RTX CORPORATION
Reel/Frame 064714/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE AND REMOVE PATENT APPLICATION NUMBER 11886281 AND ADD PATENT APPLICATION NUMBER 14846874. TO CORRECT THE RECEIVING PARTY ADDRESS PREVIOUSLY RECORDED AT REEL: 054062 FRAME: 0001. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF ADDRESS. Recorded Mar 4, 2021
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 055659/0001 →
CHANGE OF NAME Recorded Sep 4, 2020
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 054062/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 18, 2019
From: MIRONETS, SERGEY; KIRONN, LEXIA; OTT, JOE; PORRETTI, LOUIS
To: UNITED TECHNOLOGIES CORPORATION
Reel/Frame 051039/0451 →
Continuity (3)
Division 15109514
Provisional Application 61923070 · Jan 2, 2014
Related Publication 20200108444A1 · Apr 9, 2020