Selective Laser Melting of Hot Gas Turbine Components: Materials, Design and Manufacturing Aspects

38th Risø International Symposium on Materials Science

Goutianos, Stergios^1

Department of Wind Energy, Section of Composites and Materials Mechanics, Technical University of Denmark, Riso Campus, Roskilde

DK-4000, Denmark^1

关键词: Complex geometries;    Conventional manufacturing;    Cooling scheme;    Cost effective;    Industrial scale;    Part orientation;    Selective laser melting;    Support structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/219/1/012022/pdf
DOI  :  10.1088/1757-899X/219/1/012022

来源: IOP

【 摘 要 】

Selective Laser Melting (SLM) allows the design and manufacturing of novel parts and structures with improved performance e.g. by incorporating complex and more efficient cooling schemes in hot gas turbine parts. In contrast to conventional manufacturing of removing material, with SLM parts are built additively to nearly net shape. This allows the fabrication of arbitrary complex geometries that cannot be made by conventional manufacturing techniques. However, despite the powerful capabilities of SLM, a number of issues (e.g. part orientation, support structures, internal stresses), have to be considered in order to manufacture cost-effective and high quality parts at an industrial scale. These issues are discussed in the present work from an engineering point of view with the aim to provide simple quidelines to produce high quality SLM parts.