| T6热处理对SiC_p/Al复合材料高速铣削加工性的影响 |
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| 引用本文： | 葛英飞,徐九华,傅玉灿.T6热处理对SiC_p/Al复合材料高速铣削加工性的影响[J].中国机械工程,2011(23). |
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| 作者姓名： | 葛英飞 徐九华 傅玉灿 |
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| 作者单位： | 南京工程学院;南京航空航天大学; |
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| 基金项目： | 国家高技术研究发展计划(863计划)资助项目(2009AA04Z116); 江苏省高校自然基金资助项目(09KJB460004) |
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| 摘 要： | 使用聚晶金刚石(PCD)刀具,在切削速度为1200m/min下对碳化硅颗粒增强铝基(SiCp/Al)复合材料进行铣削加工试验,研究SiCp/Al复合材料经T6热处理后对其高速铣削加工性的影响。结果表明:经T6热处理后,切削力/切削温度明显高于未热处理材料,切屑锯齿形明显,加工过程不稳定性增加,刀具承受冲击作用增大,导致PCD刀具发生较严重的崩刃、剥落、冲击裂纹等磨损形式,从而刀具使用寿命显著低于高速铣削未热处理材料。T6热处理材料高速铣削表面粗糙度Ra/Rz值一般低于未热处理材料,其加工表面变质层深度也显著低于未热处理材料,加工表面存在较少的坑洞、微裂纹、基体撕裂、基体涂覆等加工所致缺陷。
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| 关 键 词： | SiCp/Al复合材料 热处理 高速铣削 可加工性 PCD刀具 |
Influences of T6 Heat Treatment on High-speed-milling Machinability of SiC_p/Al Composites |
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| Ge Yingfei Xu Jiuhua Fu Yucan .Nanjing Institute of Technology,Nanjing, .Nanjing University of Aeronautics & Astronautics.Influences of T6 Heat Treatment on High-speed-milling Machinability of SiC_p/Al Composites[J].China Mechanical Engineering,2011(23). |
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| Authors: | Ge Yingfei Xu Jiuhua Fu Yucan Nanjing Institute of Technology Nanjing Nanjing University of Aeronautics & Astronautics |
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| Affiliation: | Ge Yingfei1 Xu Jiuhua2 Fu Yucan2 1.Nanjing Institute of Technology,Nanjing,211167 2.Nanjing University of Aeronautics & Astronautics,210016 |
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| Abstract: | PCD tool was used to investigate the influences of heat treatment on the machinability when high-speed milling of SiC-particle-reinforced aluminum matrix composites at the cutting speed of 1200m/min.The results show that the cutting forces and the cutting temperature of T6 composite are higher than that of no heat treated material.The saw-toothed chip form is more evident for the T6 material.The above facts indicate that the cutting process of T6 materials is more unstable and that the PCD tool suffers from... |
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| Keywords: | SiCp/Al composite heat treatment high-speed milling machinability polycrystalline diamond(PCD) tool |
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