Experimental Research on Surface Roughness and Topography of Aluminum Alloy 7055 under High-Speed Milling

Abstract:

This study focuses on optimizing high-speed milling parameters to minimize surface roughness (R_a). High-speed milling experiments were conducted on aluminum alloy 7055 specimens prepared by five levels and four factors. The influence of milling speed, feed per tooth, milling depth and milling width on surface roughness were investigated. Detailed 3D surface topography was observed to analyze the mechanism of milling parameters on surface roughness. Results of this study indicate that the surface roughness increases gradually with the increase of feed per tooth and milling width; it decreases gradually with milling speed increasing; and the milling depth has little influence on surface roughness. The influence of feed per tooth on surface topography was more significant than that of milling speed. Appropriately by selecting processing parameters, the mi̹̾̽̽ͅ˰̶̵̱̳̓͂ͅ˰̷̸̵͂̿̾̓̓ͅ˰̀˾́̇μ̽˰̳̱̾˰̵̲˰̵̴̲̱̹̿̈́̾˾

• Periodical: Applied Mechanics and Materials (Volume 328)
• Pages: 916-920
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.328.916
• Online since: June 2013
• Authors: Chang Feng Yao, Liang Tan, Wei Zuo, Ding Hua Zhang
• Keywords: Aluminium Alloy, High-Speed Milling, Surface Roughness (SR), Surface Topography

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