会议论文详细信息
2017 International Conference on Building Materials and Materials Engineering
Tool wear of (Ti, Al) N-coated polycrystalline cubic boron nitride compact in cutting of hardened steel
材料科学;土木建筑工程
Wada, Tadahiro^1 ; Hanyu, Hiroyuki^2
Nara National College of Technology, Department of Mechanical Engineering, Nara, Japan^1
OSG Corporation, Aichi, Japan^2
关键词: Cemented carbides;    Contact areas;    Cutting materials;    Effective tool;    Hardened steel;    High-speed steels;    Polycrystalline cubic boron nitride;    Tool materials;   
Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/264/1/012017/pdf
DOI  :  10.1088/1757-899X/264/1/012017
来源: IOP
PDF
【 摘 要 】

Polycrystalline cubic boron nitride compact (cBN) is effective tool material for cutting hardened steel. In addition to coated high speed steel and coated cemented carbide that has long been used for cutting materials, more recently, coated cBN has also been used. In this study, to verify the effectiveness of the (Ti,Al)N-coated cBN, which is formed on the substrate of cBN by the physical vapor deposition method, the hardened steel was turned with the (Ti,Al)N-coated cBN tool at a cutting speed of 3.33, 5.00 m/s, a feed rate of 0.3 mm/rev and a depth of cut of 0.1 mm. Furthermore, the uncoated cBN, which was the substrate of the (Ti,Al)N-coated, was also used. The tool wear of the cBN tools was experimentally investigated. The following results were obtained: (1) The contact area between the rake face and the chip of the (Ti,.Al)N-coated cBN tool was smaller than that of the uncoated cBN tool. (2) The tool wear of the (Ti,Al)N-coated cBN was smaller than that of uncoated cBN. (3) The wear progress of the (Ti,Al)N-coated cBN with the main element phase of the TiCN-Al, was slower than that of the (Ti,Al)N-coated cBN with the main element phase of the TiN-Al. (4) In the case of the high cutting speed of 5.00 m/s, the tool wear of the (Ti,Al)N-coated cBN was also smaller than that of uncoated cBN. The above results clarify that the (Ti,Al)N-coated cBN can be used as a tool material in high feed cutting of hardened steel.

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