SURFACE ROUGHNESS OF MAGNESIUM ALLOY AZ91D IN HIGH SPEED MILLING

Authors

  • Mohd Shahfizal Ruslan Department of Mechanical and Materials Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia,43600 UKM Bangi, Selangor, Malaysia
  • Kamal Othman Department of Mechanical and Materials Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia,43600 UKM Bangi, Selangor, Malaysia
  • Jaharah A.Ghani Production Technology Department, KT 3A, German Malaysian Institute, Jalan Ilmiah, Taman Universiti, 43000 Kajang, Selangor
  • Mohd Shahir Kassim Department of Process, Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, Melaka, Malaysia
  • Che Hassan Che Haron Production Technology Department, KT 3A, German Malaysian Institute, Jalan Ilmiah, Taman Universiti, 43000 Kajang, Selangor

DOI:

https://doi.org/10.11113/jt.v78.9158

Keywords:

High speed machining, AZ91D, surface roughness

Abstract

Magnesium alloy is a material with a high strength to weight ratio and is suitable for various applications such as in automotive, aerospace, electronics, industrial, biomedical and sports. Most end products require a mirror-like finish, therefore, this paper will present how a mirror-like finishing can be achieved using a high speed face milling that is equivalent to the manual polishing process. The high speed cutting regime for magnesium alloy was studied at the range of 900-1400 m/min, and the feed rate for finishing at 0.03-0.09 mm/tooth. The surface roughness found for this range of cutting parameters were between 0.061-0.133 µm, which is less than the 0.5µm that can be obtained by manual polishing. Furthermore, from the S/N ratio plots, the optimum cutting condition for the surface roughness can be achieved at a cutting speed of 1100 m/min, feed rate 0.03 mm/tooth, axial depth of cut of 0.20 mm and radial depth of cut of 10 mm. From the experimental result the lowest surface roughness of 0.061µm was obtained at 900 m/min with the same conditions for other cutting parameters. This study revealed that by milling AZ91D at a high speed cutting, it is possible to eliminate the polishing process to achieve a mirror-like finishing.

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Published

2016-06-21

Issue

Vol. 78 No. 6-9: Advances in Research on Automotive Technology Vol. 1

Section

Science and Engineering

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Copyright of articles that appear in Jurnal Teknologi belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions, or any other reproductions of similar nature.

How to Cite

SURFACE ROUGHNESS OF MAGNESIUM ALLOY AZ91D IN HIGH SPEED MILLING. (2016). Jurnal Teknologi (Sciences & Engineering), 78(6-9). https://doi.org/10.11113/jt.v78.9158