Method for 3-D printing a pattern for the surface of a turbine shroud
US9289917B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2013 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Jan 9, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/181
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of making an article of manufacture is provided and includes the steps of spraying a first coating onto a substrate, and depositing a second coating on the first coating by 3-D printing a material disposed in a pattern. The pattern includes ridges disposed at a base surface of a turbine part. Each ridge defined by first and second sidewalls, each sidewall having a first and second end. The ends extend from the base surface, the sidewalls slope toward each other until meeting at second ends of respective first and second sidewalls defining a centerline and a top portion of the ridge. The sidewalls are inclined with substantially equal but opposite slopes with respect to the base surface. The ridges correspond to a back portion of a turbine bucket and are oriented at a first angle with respect to an axis of rotation of the bucket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.