Affiliation:
1. Harbin Institute of Technology
2. Harbin University of Science and Technology
Abstract
With silicon particles reinforced aluminum matrix composites with high volume fraction becoming a new hotspot on research and application in the aerospace materials and electronic packaging materials, the machinability of this material needs to be explored. This paper reports research results obtained from the surface grinding experiment of silicon particles reinforced aluminum matrix composites using black silicon carbide wheel, green silicon carbide wheel, white fused alumina wheel and chromium alumina wheel. The issues discussed are grinding force, surface roughness, the comparison of different grinding wheels, the micro-morphology of the work piece. The results showed that the grinding force was related with the grinding depth and the grinding wheel material, the grinding force was increasing as the grinding depth growing. The surface roughness was between 0.29μm and 0.48μm using the silicon carbide wheel. The surface of the work piece had concaves caused by silicon particles shedding and grooves caused by the grains observed by the SEM and CLSM.
Publisher
Trans Tech Publications, Ltd.
Reference5 articles.
1. Padmanabhan R, MacDonald B J, Hashmi M S J. Mechanical behavior of SiC reinforced aluminium thin walled tube under combined axial and torsional loading[J]. Journal of materials processing technology, 2004, 155: 1760-1763.
2. Kwak J S, Kim Y S. Mechanical properties and grinding performance on aluminum-based metal matrix composites [J]. Journal of Materials Processing Technology, 2008, 201(1): 596-600.
3. McDanels D L. Analysis of stress-strain, fracture, and ductility behavior of aluminum matrix composites containing discontinuous silicon carbide reinforcement[J]. Metallurgical Transactions A, 1985, 16(6): 1105-1115.
4. Dayanand M G, Rudrakshi G B, Srivastav V C, Jagannath R, Ajith G J. Spray deposition process of hypereutectic Al-Si alloys: An overview [J]. International Journal of Scientific & Engineering Research, 2011, 6(2): 1-9.
5. Xiu Ziyang, Chen Guoqin, Wang Xiaofeng, Wu Gaohui, Liu Yanmei, Yang Wenshu. Microstructure and performance of Al-Si alloy with high Si content by high temperature diffusion treatment [J]. Science Direct, 2010, 20(11), 6(2): 1-9.