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| Abstract No.: |
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Scheduled at:
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Tuesday, June 03, 2008, Auditorium 2 12:10 PM
Gasturbines 2
Coatings for mobile and stationary turbines, protection against wear, high temperature corrosion and thermal stresses, clearance control coatings for a better efficiency
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| Title: |
Newest light weight closed loop electric arc spray gun
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| Authors: |
Marcel van Wonderen* / KLM Royal Dutch Airlines
PEMD department SPL/CF1, Netherlands
Richard Luding/ Praxair-Tafa, USA
Ian MacMillan/ Praxair-Tafa, Belgium
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| Abstract: |
In 1993 the Engineering & Maintenance division of KLM Royal Dutch Airlines introduced electric arc spraying as an alternative for plasma spraying for applying metallic coatings on General Electric aircraft engines. Presently 95% of all metallic coatings are applied with electric arc spraying. Not only the coating process was simplified (4 electric arc spray parameters against more than a dozen for plasma), but also the spray times and consumables costs decreased dramatically. Also the advantages of easy handling, being a forgiving process, high deposition efficiency and excellent coatings resulted in a successful and accepted process for operators and management. Since 1993 KLM has been the most successful initiator of approvals for electric arc spray wires for General Electric Aircraft Engines. On this moment uses 4 Praxair-Tafa electric arc spray systems including the state of the art closed loop Co-Arc system which KLM introduced as very first in the world. With this paper KLM will also introduce their latest procurement: the most lightweighted closed loop electric arc spray gun of Praxair Tafa: the IM-14. Also the latest coating spray results with the Co-Arc and IM-14 will be shown.
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