Patterned Self-Assembly of Fine Particles as a Proposal of Precisely Allocated Cutting-Edge Tool
Nobuyuki Moronuki, Arata Kaneko, and Ken’ichiro Takada
Faculty of System Design, Tokyo Metropolitan University, Japan, 6-6 Asahigaoka, Hino, Tokyo 191-0065, Japan
This paper discusses fine-particle self-assembly and its potential applications to abrasive tools. Dispensing suspensions containing particles on substrates, packed structures are self-assembled as solvent evaporates. Applying relative motion between the dispenser and substrate produces patterned assembly without the need for a mask. Silica particles 1 µm in size were typically assembled along lines 20 µm-100 µmwide. Diamond particles were also assembled because these also act as the cutting edge of abrasive tools. Assembled particles were transferred to another substrate using ultraviolet curing resin. The particle edge height was aligned at the same level independent of the assemblylayer number – the key to this process.
-  N. Ikawa, et al., “Ultraprecision Metal Cutting – The Past, the Present and the Future,” CIRP Annals, Vol.40, No.2, pp. 587-594, 1991.
-  E. Shamoto and T. Moriwaki, “Ultraprecision Diamond Cutting of Hardened Steel by Applying Elliptical Vibration Cutting,” CIRP Annals, Vol.48, No.1, pp. 441-444, 1999.
-  C. J. Evans and J. B. Bryan, “‘Structured’, ‘Textured’ or ‘Engineered’ Surfaces,” CIRP Annals, Vol.48, No.2, pp. 541-556, 1999.
-  P. Koshy, A. Iwasald, and M. A. Elbestawl, “Surface Generation with Engineered Diamond Grinding Wheels: Insights from Simulation,” CIRP Annals, Vol.52, No.1, pp. 271-274, 2003.
-  Japanese published patent application 2010-076091, or Tokukai 2010-076091.
-  Y. Kanamori, A. Kaneko, N. Moronuki, and T. Kubo, “Self-Assembly of Fine Particles on Patterned Wettability in Dip Coating and Its Scale Extension with Contact Printing.” J. of Advanced Mechanical Design, Systems, and Mfg, JSME, Vol.2, No.4, pp. 783-791, 2008.
-  H. Kobayashi, N. Moronuki, and A. Kaneko, “Self-assembly of Fine Particles Applied to the Production of Antireflective Surfaces,” Int. J. of Prec. Eng. and Mfg, Vol.9, No.1, pp. 25-29, 2008.