Effect of SiC Particles on the Machining of Aluminum/SiC Composite
Effect of SiC Particles on the Machining of Aluminum/SiC Composite
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DOI：
10.4028/www.scientific.net/msf.626-627.219
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发表时间：
2009-08
期刊：
影响因子：
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通讯作者：
G. Zhang;Yuanqiang Tan;Bi Zhang;Z. Deng
中科院分区：
文献类型：
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作者：
G. Zhang;Yuanqiang Tan;Bi Zhang;Z. Deng
本研究的目的是通过实验研究增强SiC颗粒对铝/SiC复合材料（SiC颗粒体积比为15%，平均晶粒尺寸为15m）加工的影响。用碳化钨立铣刀铣削铝/碳化硅复合材料和金属铝。通过表面观察和表面粗糙度检测，发现铝/SiC复合材料的加工参数具有最优值，并且铝/SiC复合材料的表面粗糙度小于铝金属。当进给速度和进给深度小于限制值时，可以获得满意的表面光洁度，但随着进给深度和进给速度的增加，首先在SiC颗粒与铝基体的界面处产生微裂纹，然后在加工表面周期性地形成宏观裂纹，讨论了铝/SiC加工中的损伤机理。
The objective of this study is to experimentally investigate the effect of reinforced SiC particles on the machining of Aluminum/SiC composite (15% volume ratio of SiC particles with average grain size 15m). Aluminum/SiC composite and aluminum metal were milled by a tungsten carbide endmill in this study. Based on the surface observation and surface roughness inspection, it is found that the machining parameters of Aluminum/SiC composite have optimum values, and that the surface roughness of aluminum/SiC composite is smaller than that of aluminum metal. when feedrate and depth of cut are smaller than limited values, satisfactory surface finish can be attainable, however, as the depth of cut and feedrate increases, the microcracks are first initiated at the interface of SiC particles and aluminum matrix, and then periodically macrocracks are formed on the machined surface, The damage mechanism during the machining of aluminum/SiC are discussed in this paper.