Cold Spraying for Aerospace Applications

Tuesday, May 12, 2015: 8:00 AM
Room 102A (Long Beach Convention and Entertainment Center)
Prof. Thomas Klassen , Helmut Schmidt University, University of the Federal Armed Forces Hamburg, Hamburg, Germany
Dr. Kurt Binder , Helmut Schmidt University, University of the Federal Armed Forces Hamburg, Hamburg, Germany
Dr. Marķa villa , Helmut Schmidt University, University of the Federal Armed Forces Hamburg, Hamburg, Germany
Dr. Frank Gärtner , Helmut Schmidt University, University of the Federal Armed Forces Hamburg, Hamburg, Germany
Prof. Hamid Assadi , Helmut Schmidt University, University of the Federal Armed Forces Hamburg, Hamburg, Germany
Dr. Thomas M. Gartner , Lufthansa Technik AG, Hamburg, Germany
Materials with high specific strength are required for aerospace applications. This presentation focuses on deposition of Ti and Al alloys by cold spraying, in view of cost-effective near net shape production of bulk parts or functional surface coatings, as well as refurbishing of used parts. Comprehensive understanding of the cold spray process allows for systematic optimization of process parameters and equipment. A generalized parameter has been developed that allows for relating process parameters and feedstock powders with coating properties such as porosity, mechanical strength and electrical conductivity. This concept also allows predicting prospective coating performance, and a respective user software tool will be presented. In this way, dense coatings with tensile strengths up to the level of respective bulk material are successfully achieved. The results demonstrate that cold spraying is a powerful technology for processing oxygen-sensitive light metal alloys and has already been established in aerospace industry.
See more of: Engineering, Protection and Repair of Aircraft Structural Parts 1
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