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IJAT Vol.9 No.2 pp. 161-169
doi: 10.20965/ijat.2015.p0161
(2015)

Paper:

Configuration Method of Fixing System with 2-Dimensionally Low-Frequency Vibration for Drilling to Decrease Influence from Unintended Displacement of Workpiece

Ivan Burdukovskyi, Jun’ichi Kaneko, and Kenichiro Horio

Department of Mechanical Engineering, Graduate School of Engineering, Saitama University
255 Shimo-Ohkubo, Sakura-ku, Saitama City, Saitama 338-8570, Japan

Received:
September 22, 2014
Accepted:
January 9, 2015
Published:
March 5, 2015
Keywords:
low-frequency vibration, vibration drilling, 2-dimensional vibration, unintended displacement, balanced rigidities
Abstract

Micro deep drilling of hard materials requires introducing of step feed in process that increases machining time. To decrease the machining time by increasing the step feed, we apply low-frequency vibration (∼10 μm, 150 – 250 Hz) to the drilling process by oscillating the workpiece. To cope with the low-frequency vibration-assisted drilling of a curved surface, we have developed a fixing system for 2-dimensional vibration. The Fixing System for 2-Dimensional Vibration (FS2DV) consists of horizontal, and vertical actuators plus spring systems with variable rigidities along the directions of the actuators. A thrust force of 6 – 10 N from the drilling process may induce an unintended displacement of the workpiece. If the rigidities of the horizontal and the vertical spring systems are not balanced, unintended displacement may create diameter error during the drilling process. In this study, a method is proposed for configuring of the FS2DV with balanced spring systems to minimize the effects of the unintended displacement on diameter error. Frequency response function analysis of the vertical and horizontal spring systems is done for successful use of the FS2DV during the low-frequency vibration-assisted 2-axis drilling. Based on this analysis, setting requirements for the FS2DV are proposed for a particular vibration frequency. The behavior of the resultant vibration is evaluated while force is loaded along the intended angle of the drilling process. As a result, the effects of unintended displacement at the FS2DVare decreased for use within the vibration frequency range of 150 – 250 Hz with the vibration amplitude of 10 μm. The system can be used properly with a thrust force of up to 10 N and any angle from 0 to 90° by selecting appropriate rigidities for the spring systems.

Cite this article as:
I. Burdukovskyi, J. Kaneko, and K. Horio, “Configuration Method of Fixing System with 2-Dimensionally Low-Frequency Vibration for Drilling to Decrease Influence from Unintended Displacement of Workpiece,” Int. J. Automation Technol., Vol.9, No.2, pp. 161-169, 2015.
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References
  1. [1] S. Mandai, M. Inada, E. Akita, and S. Tanimura, “Development of a Low NOx Combustor for firing Dual Fuel,” Mitsubishi Heavy Industries Technical Review, Vol.36, No.3, pp. 70-74, 1999.
  2. [10]A. Mizobuchi and H. Ogawa, “Study on Applying Cavitation in Micro Drilling of Austenite Stainless Steel – Control of Burr in Through Hole Drilling,” Int. J. of Automation Technology, Vol.4, No.1, pp. 15-20, 2009.
  3. [11]Y. Wang and E. Shamoto, “Elliptical Vibration Cutting of Hardened Steel with Large Nose Radius Single Crystal Diamond Tool,” Int. J. of Automation Technology, Vol.8, No.6 pp. 820-826, 2014.
  4. [12]S. Amini, E. Shamoto, N. Suzuki, and M. J. Nategh, “FE Analysis of One-Directional and Elliptical Vibration Cutting Processes,” Int. J. of Automation Technology, Vol.4, No.3 pp. 252-258, 2010.
  5. [2]Y. Nanbu, K. Ochiai, K. Horio, J. Kaneko, T. Watanabe, and Sh. Matsuda, “Attempt to Increase Step Feed by Adding Ultrasonic Vibrations in Micro Deep Drilling,” J. of Advanced Mechanical Design, Systems, and Manufacturing, Vol.5, No.2, pp. 129-138, 2011.
  6. [3]Y. Nanbu, K. Ochiai, K. Horio, J. Kaneko, K. Ehara, and Sh. Matsuda, “High-Aspect-Ratio Microdrilling Assisted by Low-Frequency Vibration,” J. of the Japan Soc. for Mechanical Eng., Vol.78, No.2, pp. 155-159, 2012. (in Japanese)
  7. [4]L. W. Hui, Y. L. Qiao, and K. Zh. Ping, “Calculating of the Exit Burr in Low Frequency Axial Vibration Drilling,” Advanced Materials Research, Vol.706-708, pp. 1231-1236, 2013.
  8. [5]F. Sh. Hua and Z. Y. Run, “Study on the Temperature of Workpiece in Low-Frequency Vibration Drilling,” Advanced Materials Research, Vol.630, pp. 158-162, 2012.
  9. [6]H. G. Toews III, W. D. Compton, and S. Chandrasekar, “A study of the influence of superimposed low-frequency modulation on the drilling process,” Precision Eng., Vol.22, No.1, pp. 1-9, 1998.
  10. [7]K. Ishikawa, H. Suwabe, T. Nishide, and M. Uneda, “A study on combined vibration drilling by ultrasonic and low-frequency vibrations for hard and brittle materials,” Precision Eng., Vol.22, No.4, pp. 196-205, 1988.
  11. [8]I. Burdukovskyi, J. Kaneko, and K. Horio, “Development of fixing system for 2-axis micro deep drilling assisted by low frequency vibration,” Key Engineering Materials, Vol.625, pp. 149-154, Oct. 2014.
  12. [9]J.P. Den Hartog, “Mechanical vibrations,” Dover Publications Inc., New York, pp. 23-47, 1985.

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