Direct SLS Processing for Production of Cermet Composite Turbine Sealing Components

1 March 1998

journal article
research article
Published by Taylor & Francis in Materials and Manufacturing Processes

Vol. 13 (2) , 241-261
https://doi.org/10.1080/10426919808935239

Abstract

This paper presents the development to date of Selective Laser Sintering (SLS) technologies for production of cermet composite turbine sealing components, the particular application being an abrasive blade tip. The component chosen for the application is an integral part of the low pressure turbine in a. IHPTET (Integrated High Performance Turbine Engine Technology) demonstrator engine. Both indirect and direct SLS techniques are being developed. Initial trials and process development involved the use of fugitive polymeric binders. Sequential refinements were performed to develop a binderless direct SLS process. Results from mechanical testing indicate that acceptable microstructure and properties are attainable by SLS with substantial cost savings as compared to the currently employed production method. This is the first instance of direct Solid Freeform Fabrication (SIT) method applied to a functional component.

Keywords

This publication has 2 references indexed in Scilit:

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