| 金属基复合材料的切削加工 |
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| 引用本文： | 徐九华,左敦稳,杨明达.金属基复合材料的切削加工[J].南京航空航天大学学报(英文版),1995(2). |
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| 作者姓名： | 徐九华 左敦稳 杨明达 |
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| 作者单位： | 南京航空航天大学机械工程系 |
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| 摘 要： | 选用四种切削性能优良的刀具材料：细晶粒硬质合金、陶瓷、立方氮化硼和聚晶金刚石，对两种典型的金属基复合材料即氧化铝纤维增强与碳化硅颗粒和氧化铝纤维混杂增强铝基复合材料的切削加工性进行了全面深入地研究。结果表明：加工混杂增强铝基复合材料时，聚晶金刚石刀具的磨损阻力最大。而加工纤维增强复合材料时，细晶粒硬质合金刀具的磨损率低、工件表面完整性好且加工成本最低。本文对刀具的磨损机理也进行了深入探讨。最后，从刀具磨损和表面完整性观点出发，给出了加工不同金属基复合材料的最佳刀具材料。
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| 关 键 词： | 切削加工 切削力 表面粗糙度 金属基复合材料 刀具磨损 |
MACHINING OF METAL MATRIX COMPOSITES |
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| Xu Jiuhua,Zuo Dunwen,Yang Mingda.MACHINING OF METAL MATRIX COMPOSITES[J].Transactions of Nanjing University of Aeronautics & Astronautics,1995(2). |
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| Authors: | Xu Jiuhua Zuo Dunwen Yang Mingda |
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| Abstract: | Two types of aluminium-based composites reinforced respectively with 20 vol short fibre alumina and with a hybrid of 15 vol SiC particle and 5 vol short alumina fibre are machined with different tool materials:cemented carbide,ceramic,cubic boron nitride(CBN)and polycrystalline diamond(PCD).The analysis on tool wear shows that the various tool materials exhibite different tool wear behaviours,and the tool wear mechanisma are discussed.Apparently,PCD tools do not necessarily guarantee dimensional stability but they can provide the most economic means for machining all sorts of composites.Consequently,a suitable tool material is suggested for machining each metal matrix composite(MMC) from the standpoints of tool wear and machined surface finish. |
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| Keywords: | machining cutting force surface roughness metal matrix composite tool wear |
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