The Wear of Cutting Pellets Coated with TiAlN During Machining of a Cobalt Superalloy (FSX-414)
American Journal of Software Engineering and Applications
Volume 5, Issue 6, December 2016, Pages: 56-60
Received: Dec. 6, 2016;
Accepted: Dec. 23, 2016;
Published: Jan. 23, 2017
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Sebhi Amar, Department of Mechanical Engineering, Faculty of Technology, University Med Boudiaf, M’Sila, Algeria
Douib Nadir, Department of Mechanical Engineering, Faculty of Technology, University Med Boudiaf, M’Sila, Algeria
For the machining of superalloys, unconventional methods such as electroerosion, electrochemistry and others are frequently used due to the hardness of the material. Although, for some other operations, theconventional machining is essential. Because of their high hardness and improved mechanical properties, these superalloys require specific materials means such as machines and tools. To get an idea of the behavior of such a material in particular fields such as gas turbines, nuclear reactors, the industrialists have been interested for many years in the development and characterization of new materials to optimize the wear of the cutting tools and produce at a lower cost. In this context, the study of the tribological behavior of the cobalt-based superalloy FSX-414 standard 9001F in contact with the TiAlN-coated carbide inserts provides important information in the case of the turbine blade industry. The article discusses the productivity of gas turbine blades of the thermal power plant electricity production. The material to be machined is a superalloy which requires a carbide tool with adequate coating (TiN, TiC, TiAlN, TiCN...). This research eté preceded by an article about the couple material / tool (FSX-414 / TiN coated carbide). A comparison of results has been made to optimize the cutting process and start production with lower cost. The lifetime of the cutting tool is mainly related to the development of two types of wear: flankwear of the sidewall and crater wear. This phenomenon of wear seems to be progressive, it develops during the cutting, which affects the quality of the machining, the productivity, and in particularly it may lead to the destruction of the tool in case of excessive wear. For the measurement of wear, an indirect method is used by coupling a Touptek photon camera to a microscope and capture the image to be processed by Toupview analysis software. It has been shown that the coating is the most influential parameter, followed by the sliding velocity. In this context, a focused research on the wear of TiAlN-coated Platelets in contact with this superalloy which is resistant to wear at high temperature has been developed.
The Wear of Cutting Pellets Coated with TiAlN During Machining of a Cobalt Superalloy (FSX-414), American Journal of Software Engineering and Applications.
Vol. 5, No. 6,
2016, pp. 56-60.
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