Choice of reference surfaces for machined surface roughness in milling of SiCp/Al composites

Choice of reference surfaces for machined surface roughness in milling of SiCp/Al composites
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SiCp/Al 复合材料铣削中加工表面粗糙度参考表面的选择

DOI:
10.1007/s11771-014-2410-9
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发表时间:
2014-11
影响因子:
4.4
通讯作者:
孙立宁
孙立宁
中科院分区:
材料科学3区
文献类型:
--
作者:
王阳俊;黄海波;孙立宁

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为了选择合适的SiCp/Al复合材料已加工表面粗糙度的参照面,对SiCp/Al复合材料进行了切削实验,并用OLS3000激光共聚焦扫描显微镜测量了已加工表面的形貌。利用面功率谱密度对加工表面三维形貌测量数据进行了分析。结果表明,SiCp/Al复合材料球磨加工表面的织构基本各向同性。这就是同一加工表面上不同位置的Rq值明显不同的原因。通过对不同滤波方法性能的比较,得出稳健的最小二乘参考面可以有效地提取SiCp/Al复合材料的表面粗糙度。
In order to choose the appropriate reference surface on the machined surface roughness of SiCp/Al composites, the cutting experiments of SiCp/Al composites were carried out, and the machined surface topography was measured by OLS3000 Confocal laser scanning microscope. The 3D measured data of machined surface topography were analyzed by the area power spectrum density. The result shows that the texture of machined surface topography in milling of SiCp/Al composites is almost isotropic. This is the reason that the values ofRqat different locations on the same machined surface are obviously different. Through the comparison of performance of different filtering methods, the robust least squares reference surface can be used to extract the surface roughness of SiCp/Al composites effectively.
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