Paper Title:
Effect of Reinforcements on the Ultraprecision Performance of SiC Reinforced Aluminium Matrix Composites
  Abstract

The experiments on ultraprecision turning of SiC reinforced aluminium composites have been done by using polycrystalloid diamond (PCD) tool with the three-dimensional cutting forces measured with a Kistler dynamometer, the quality of the machined surfaces was examined under Atom Force Microscope (AFM) and Scanning Electron Microscope (SEM) and the roughness of the machined surfaces was measured with roughometer of Talysurf-6. The experimental results show that the quality of the machined surfaces of SiC reinforced aluminium composites is predominantly controlled by the deformation mechanisms of SiC reinforcements, and the quality of the machined surfaces is better when reinforcements deform in the form of direct cutoff than in the form of pullout. The higher the volume fraction of SiC reinforcements, the worse the quality of the machined surfaces and the greater the amplitude of vibration and the average value of the cutting forces. On the same condition of volume fraction and cutting, the quality of the machined surfaces of SiC whiskers reinforced aluminium matrix composites is better than that of SiC particles reinforced aluminium matrix composites.

  Info
Periodical
Advanced Materials Research (Volumes 154-155)
Edited by
Zhengyi Jiang, Xianghua Liu and Jinglong Bu
Pages
1342-1347
DOI
10.4028/www.scientific.net/AMR.154-155.1342
Citation
D. Z. Wang, P. F. Feng, L. You, "Effect of Reinforcements on the Ultraprecision Performance of SiC Reinforced Aluminium Matrix Composites", Advanced Materials Research, Vols. 154-155, pp. 1342-1347, 2011
Online since
October 2010
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$32.00
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