| 镍基合金高速切削中锯齿状切屑毛边和刀具磨损研究 |
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| 引用本文： | 肖茂华,何宁,李亮,陆爱华.镍基合金高速切削中锯齿状切屑毛边和刀具磨损研究[J].工具技术,2009,43(6):32-36. |
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| 作者姓名： | 肖茂华 何宁 李亮 陆爱华 |
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| 作者单位： | 南京航空航天大学 |
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| 摘 要： | 基于等腰三角形悬臂梁切屑毛边假设，建立了切屑毛边对刀具前刀面和切削刃的冲击强度、冲击频率模型。通过该模型，计算了不同切削速度下切屑毛边的冲击强度和冲击频率；通过扫描电镜和能谱分析，对切屑底部元素和刀具表面进行了分析。结果表明，锯齿状切屑毛边是造成沟槽磨损的重要原因。
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| 关 键 词： | 陶瓷刀具 镍基高温合金 沟槽磨损 锯齿状切屑毛边 模型 |
Study on Saw-tooth-shaped Chip Edge and Tool Wear for High-speed Machining of Nickel-based Superalloy |
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| Xiao Maohua He Ning Li Liang et al.Study on Saw-tooth-shaped Chip Edge and Tool Wear for High-speed Machining of Nickel-based Superalloy[J].Tool Engineering(The Magazine for Cutting & Measuring Engineering),2009,43(6):32-36. |
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| Authors: | Xiao Maohua He Ning Li Liang |
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| Affiliation: | Xiao Maohua, He Ning ,Li Liang, et al(Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China) |
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| Abstract: | Based onthe hypothesis of isosceles triangle cantilever ,a model was establishedto calculate the impact force and impact frequency of saw-tooth-shaped chip edge onthetool rackface andtool edge·Throughthis model ,theimpact force andimpact frequency of saw-tooth-shaped chip edge in different cutting speeds were calculated;the chip’s bottomsurface and tool surface were investigated by scanning electron microscope (SEM) equipped energy dispersive X-ray spectroscopy (EDS)·The results showthat the saw-tooth-shaped chip edge is animportant cause of occurrence of notch wear· |
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| Keywords: | ceramic cutter nickel-based superalloy notch wear saw-tooth-shaped chip edge model |
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