Ultrasonically Assisted Micro Drilling for Acrylic Resin μ-TAS

Abstract:

Recently, technologies for medical inspection have been increasing rapidly. In biomedical industry, a demand of Micro Total Analysis System (μ-TAS) has been growing which used in automatically inspection for chemical analysis. The μ-TAS have micro passageway which is constructed by many fine micro holes. Final polishing by skilled workers are carried out after drilling to obtain smooth surface of holes. Because new manufacturing technique is required instead of skilled workers, it increases productivity and cost performance of the μ-TAS. Drilling technique with low temperature environment around cutting edge is required to prevent heat crack or adhesion on holes surface, because acrylic resin heats sensitive material. In this study, ultrasonically assisted micro drilling technique is proposed to increase productivity of μ-TAS and quality of micro holes. Ultrasonically assisted machining has effective technique to improve machinability, e.g. reduce cutting force, increase chip removability and machined surface quality. This paper describes the cutting characteristics of ultrasonically assisted micro-drilling for acrylic resin to employ the μ-TAS manufacturing to solve above problems.

• Periodical: Key Engineering Materials (Volume 625)
• Pages: 607-612
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.625.607
• Online since: August 2014
• Authors: Keisuke Hara*, Atsushi Asahi, Hiromi Isobe
• Keywords: Acrylic Resin, Micro-Drilling, Ultrasonically Assisted Drilling, μ-TAS

References

[1] J. Kumabe, et. al.: Ultrasonic superposition vibration cutting of ceramics, Precision Engineering, 11-2, pp.71-77(1989).

DOI: 10.1016/0141-6359(89)90055-x

[2] J. Kumabe et. al.: Super Precision Ultrasonic Vibration Turning, Journal of JSPE, 47-10, pp.1252-1257 (1981) (in Japanese).

[3] H. Isobe, K. Hara, et. al.: Ultrasonically Assisted Grinding for Mirror Surface Finishing of Dies with Electroplated Diamond Tools, International Journal of Precision Engineering and Manufacturing, 8-2, pp.38-43 (2007).

[4] K. Tanaka, et. al.: Investigation of Cutting Behavior in Two-dimentional Cutting with Ultrasonic Vibration (1st Report), JSPE Autumn Conference, pp.507-508 (2005) (in Japanese).

[5] K. Hara, H. Isobe, et. al.: Investigation for high speed ultrasonic cutting of aluminum alloy, Key Engineering Materials, 516, pp.367-372 (2012).

DOI: 10.4028/www.scientific.net/kem.516.367

[6] J. Pujana, A. Rivero, et. al.: Analysis of ultrasonic-assisted drilling of Ti6Al4V, International Journal of Machine Tools and Manufacture, 49-6 pp.500-508 (2009).

DOI: 10.1016/j.ijmachtools.2008.12.014

[7] Muhammad Aziz, et. al: Novel micro deep drilling using micro long flat drill with ultrasonic vibration, Precision Engineering, 36-1, pp.168-174 (2012).

DOI: 10.1016/j.precisioneng.2011.07.010

[8] H. Isobe, Y. Uehara and K. Hara : Effect of Ultrasonic Vibration Drilling on Cutting Stress Distribution , 14th International Conference on Precision Engineering (2012) 191-196.

DOI: 10.4028/www.scientific.net/kem.523-524.191