| 涂层刀具高速铣削高温合金GH2132磨损形态及磨损机理 |
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| 引用本文： | 刘超, 艾兴, 刘战强, 万熠. 涂层刀具高速铣削高温合金GH2132磨损形态及磨损机理[J]. 北京工业大学学报, 2010, 36(12): 1590-1594. |
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| 作者姓名： | 刘超 艾兴 刘战强 万熠 |
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| 作者单位： | 1.高效洁净机械制造教育部重点实验室 山东大学, 济南 250061 |
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| 基金项目： | 国家重点基础研究发展计划资助项目 |
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| 摘 要： | 用2种硬质合金涂层刀具进行铁基高温合金GH2132的高速干铣削试验,采用电子扫描显微镜(scanning electron microscopy,SEM)观察刀具的磨损形貌,对刀具的主要磨损机理进行了分析.结果表明:刀具的磨损形态主要是后刀面磨损;KC725M涂层由TiN、TiAlN组成,涂层易剥落;KC525M涂层只有1层TiAlN,涂层不易脱落,但由于机械冲击产生沟槽磨损,形成应力集中,导致在切削刃处产生较大的磨损;不论KC525M还是KC725M,涂层剥落后,切削区产生的瞬时高温均使基体中粘结相发生软化,造成硬质相颗粒脱落和基体的剧烈磨损.研究结果可用于指导高速切削刀具材料的设计、合理选用及刀具磨损控制.
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| 关 键 词： | 涂层刀具 高温合金 GH2132 高速铣削 磨损 |
| 收稿时间： | 2009-06-04 |
Wear Patterns and Mechanism of Coated Cemented Carbide Tool in High Speed Milling Superalloy GH2132 |
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| LIU Chao, AI Xing, LIU Zhan-qiang, WAN Yi. Wear Patterns and Mechanism of Coated Cemented Carbide Tool in High Speed Milling Superalloy GH2132[J]. Journal of Beijing University of Technology, 2010, 36(12): 1590-1594. |
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| Authors: | LIU Chao AI Xing LIU Zhan-qiang WAN Yi |
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| Affiliation: | 1.Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, Shandong University, Jinan 250061, China |
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| Abstract: | Two kinds of coated Cemented carbide tools were used to mill Iron-based superalloy GH2132 at high-speed under dry cutting condition.Wear patterns wear observed by SEM,the main mechanism of tools were analysed,Results show that flank wear is the main wear pattern;the coating of KC725 is made from TiN and TiAlN,so it is more easy to flake;the coating of KC525M is made from only TiAlN,it is not easy to flake,but groove wear was find at cutting edge because of Mechanical impact,the formation of stress concentra... |
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| Keywords: | GH2132 |
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