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http://dx.doi.org/10.7736/KSPE.2014.31.6.513

The Evaluation of Wear Characteristics Depending on Components of Surface Treatment for Cemented Carbide Endmill  

Yoon, Il Chae (Division of manufacturing industry innovation, Daegu Mechatronis & Materials Institute)
Kim, Dong Bae (Division of manufacturing industry innovation, Daegu Mechatronis & Materials Institute)
Youn, Guk Tae (Division of manufacturing industry innovation, Daegu Mechatronis & Materials Institute)
Yoon, In Jun (Department of Research & Development, OSG Korea Corporation)
Lee, Ji Hyung (Department of Research & Development, OSG Korea Corporation)
Ko, Tae Jo (Department of Mechanical Engineering, Yeung Nam University)
Publication Information
Journal of the Korean Society for Precision Engineering / v.31, no.6, 2014 , pp. 513-519 More about this Journal
Abstract
For depth machining in die and mold, Electrical Discharge Machining (EDM) is used generally. To make deep hole and deep shape efficiently, cemented carbide endmill for depth machining is necessary. For this purpose, cemented carbide endmill was designed using design of experiment (DOE). To improve cutting performance, endmill was coated with multilayer surface treatment, TiAlCrSiN and TiAlCrN, for higher wear resistance. In order to evaluate the endmill, Transverse Rupture Strength (TRS) test was tried for investigating the relationship between surface treatment and strength in endmill body. Scratch test was also used for measuring adhesion force of each surface treatment. To evaluate hardness of surface treatment, Atomic Force Microscope (AFM) analysis was carried out. Wear test was executed for characteristics of each surface treatment in high temperature. Consequently, TiAlCrSiN was superior to the TiAlCrN coating in case of high temperature environment such as cutting.
Keywords
Depth Machining; Cemented Carbide Endmill; Surface Treatment; High-Temperature Oxidation; Wear Characteristic;
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