Curtis E Frederick

US Patent:

20220371094, Nov 24, 2022

Filed:

Nov 18, 2020

Appl. No.:

17/777598

Inventors:

- Oak Ridge TN, US
Paul Brackman - Knoxville TN, US
Curtis Frederick - Knoxville TN, US
Marcin B. Bauza - Plymouth MN, US
Edson Costa Santos - Oberkochen, DE
Ryan Dehoff - Knoxville TN, US
Alex Plotkowski - Knoxville TN, US
Aleksandr Lisovich - Plymouth MN, US
Jason James Tenboer - Elk River MN, US

Assignee:

UT-Battelle, LLC - Oak Ridge TN

International Classification:

B22F 10/85
G06V 30/18
G06V 10/44
G06T 7/33
G06T 11/00
G06T 7/00
B22F 10/28
B22F 12/90
B33Y 10/00
B33Y 30/00
B33Y 50/02

Abstract:

An apparatus includes a control system that defines a test part having multiple features of multiple feature types. The control system controls an additive manufacturing (AM) machine to print multiple copies of the test part, with each copy being printed according to a respective set of values used as printing parameters. A measurement system obtains a computed tomography (CT) image of each of the copies of the test part. An analysis system, for each of the plurality of feature types, analyzes the CT images to identify a selected set of values for the printing parameters. The analysis system identifies a portion of the CT image related to a first feature and assesses its density based on an average grayscale value. The AM machine is then controlled to print production parts according to, for each feature type of the production parts, the selected set of values for the printing parameters.