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Development of Ti-W-C-N System PVD Coated Tool

Ti-W-C-N系统PVD涂层刀具的开发

基本信息

批准号：
15560110
负责人：
WADA Tadahiro
金额：
$ 2.18万
依托单位：
Nara National College of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15560110/
关键词：
(Ti,W)(C,N) Coating Film (Ti,W)C Coating Film (Ti,W)N Coating Film Cutting Tool Wear Physical Vapour Deposition Coating Microhardness of Coating Film Critical Scratch Load 工具摩耗 SUS310S 焼結鋼焼入れ焼結鋼密着強度

项目摘要

Ti-W-C-N system coating films formed by PVD method, which are new type coating films, have been developed in this research. In order to clarify the effective tool material for the turning of various workpieces, the tool wear of the Ti-W-C-N system coated cemented carbide tools are experimentally investigated. The substrate used is cemented carbide JIS K10. The cathode material used is TiW.The main results obtained are as follows :1.The TiN coating layer has the micro-hardness of HV_<0.25N>1940 and the critical scratch load of 64N. The (Ti,W)N coating layer, which is the bias voltage -150V, has the micro-hardness of HV_<0.25N>1970 and the critical scratch load of 148N.2.In the cutting of SCr420H, the Ti-W-C-N coated cemented carbides are the effective tool materials. In the Ti-W-C-N coated cemented carbide tools, the wear progress of the (Ti,W)N coated cemented carbide tool, which is the bias voltage -150V, is slowest.3.In the cutting of SUS304 or SUS310S, the wear progress of the (Ti,W)N coated cemented carbide tool, which is the bias voltage -300V, is slowest.4.In the cutting of sintered steel, there was little difference between the wear progress of the (Ti,W)N coating film and the (Ti,Al)N coating film.5.In the cutting of sintered stainless steel, the (Ti,W)C coated cemented carbide tool is the most effective tool material in the (Ti,W)(C,N) coated cemented carbides.

本研究开发了一种新型的Ti-W-C-N系PVD涂层。为了明确车削各种工件的有效刀具材料，对Ti-W-C-N系涂层硬质合金刀具的刀具磨损进行了实验研究。使用的基体是硬质合金JIS K10。主要结果如下：1. TiN涂层的显微硬度为HV_（<0.25N>1940），临界划痕载荷为64 N。偏压为-150V时，（Ti，W）N涂层的显微硬度为HV <0.25N>1970，临界划痕载荷为148 N。2.在切削SCR 420 H时，Ti-W-C-N涂层硬质合金是有效的刀具材料。在Ti-W-C-N涂层硬质合金刀具中，偏压为-150V时（Ti，W）N涂层硬质合金刀具的磨损进程最慢; 3.在切削SUS 304或SUS 310 S时，偏压为-300V时（Ti，W）N涂层硬质合金刀具的磨损进程最慢; 4.在切削烧结钢时，偏压为-150V时（Ti，W）N涂层硬质合金刀具的磨损进程最慢。（Ti，W）（C，N）涂层硬质合金刀具是（Ti，W）（C，N）涂层硬质合金刀具中切削烧结不锈钢最有效的刀具材料。