Study the Properties of Abrasive Stone for Aluminum Grinding

Abstract:

A doubled-sided lapping machine of grinding stone manufactured of a SiC as an abrasive, specific resin and other thermosetting resin were developed for grinding process of the substrate of hard disk drive (HDD) made up of aluminum since the conventional lapping machine cause the serious quality problem of the magnetic substrate. However, at certain parameter during the grinding process, the abrasive stone was clogging due to the agglomeration of debris from the substrate which cause scratches on the magnetic substrates and affect its performance. The samples were classified into four parts (soft spot, border spot, hard spot, and unused spot). Characterizations of the samples were done using XRF, SEM and FTIR analysis. Based on all the above analysis, it can conclude that the porosity of the stone were not homogeneous and the percentage of Al was highest at the border spot which shows that, the area at the border spot cause the clogging to occur thus produces the hard spot that will damage the magnetic substrate during grinding process.

• Periodical: Applied Mechanics and Materials (Volumes 754-755)
• Pages: 688-692
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.754-755.688
• Online since: April 2015
• Authors: Nurul Syafiqah Hasni*, Noorina Hidayu Jamil, Abdullah Chik, Wi Wan Mohd Arif, Hong Eng Seong
• Keywords: Aluminum Grinding, Grinding Fluid, Grinding Stone

References

[1] H. Tomita and Y. Eda: A study of the ultra precision grinding process on a magnetic disk substrate-development of new bonding materials for fixed abrasives of grinding stone. Wear Vol. 74-80(1996), p.195.

DOI: 10.1016/0043-1648(95)06792-2

[2] Z. Zhong and N. P. Hung: Grinding of alumina / aluminum composites. Journal of Materials Processing Technology Vol. 13-17 (2002), p.123.

DOI: 10.1016/s0924-0136(02)00075-4

[3] T. Mang, in: Lubricants and Lubrication, edited by T. Mang and W. Dresel, Publications/Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim ( 2007).

[4] W. B. Rowe: Principles of modern grinding technology, Publications/William Andrew Publishing, UK (2009).

[5] Y. Sato, T., Mitsuhashi, K., Tomita, Y., and Sasaki, U.S. Patent 5060, 424. (1991).

[6] Y. Tomita and H. Eda: Influence of grinding fluid on ultra precision processing of high purity aluminium alloy by grinding stone. Wear Vol. 183-187 (1997), p.212.

DOI: 10.1016/s0043-1648(97)00161-0

[7] D. L. Pavia, G. M. Lampman, and G. S. Kriz: Introduction to Spectroscopy: A Guide for Students of Organic Chemistry, Harcourt Brace College Publishers, California (1996).