Performance of PVD TiN, TiCN, and TiAlN coated cemented carbide tools in turning

被引:345
作者
Jindal, PC [1 ]
Santhanam, AT [1 ]
Schleinkofer, U [1 ]
Shuster, AF [1 ]
机构
[1] Kennamet Inc, Corp Technol, Latrobe, PA 15650 USA
关键词
D O I
10.1016/S0263-4368(99)00008-6
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Ion-plated PVD TiN, TiCN, and high-ionization sputtered PVD TiAlN coatings were deposited on WC-6wt%Co hardmetal inserts. Microstructural and mechanical properties of the coatings and substrate were characterized. Coated tools were evaluated in turning of Inconel 718, medium cal bon SAE 1045 steel, and ductile iron at low and high cutting speeds. TiAlN coated tools showed the best metalcutting performance, followed by the TiCN and TiN coated tools. The superior performance of the TiAlN coated tools, which was even greater at higher speeds, is related to the coating's higher resistance to abrasive and crater wear. These characteristics are a result of the higher hot hardness and oxidation resistance of TiAlN at the temperatures normally encountered at the tool tip during machining operations. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:163 / 170
页数:8
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