Experimental tests of a new assisted tool holder for ultraprecision machining

  • Henrique Roberto de Herdani Brino
  • Laercio JavarezJr.
  • Jaime Gilberto Duduch
Technical Paper
  • 18 Downloads

Abstract

This paper presents the test rig and machining tests of a new assisted toolholder (ATH) used for ultraprecision machining. The ATH is composed of a piezoelectric actuator to perform the displacement of the diamond tool, a capacitive sensor to perform displacement feedback, and a PID controller for position correction. The control system corrects the effects of hysteresis inherent to piezoelectric crystals, and any positioning errors. The bench tests were performed (without material removal) with different input signals: sine, square, triangular, and sawtooth waves. Sinusoidal and square signals were used in the machining tests. The input (supplied by user) and output (from the ATH) signals obtained during displacement bench tests were compared to analyze the integrity of the displacements generated as a function of time. The machining tests performed in AISI 6000 aluminum showed the great precision, and effectiveness of the mechanical design and ATH control system accuracy.

Keywords

Assisted tool holder High-precision machining Control PID Piezoelectric actuator 

References

  1. 1.
    Ikawa N, Donaldson RR, Komanduri R, Konig W, Mckeown PA, Moriwaki T, Stowers IF (1991) Ultraprecision metal cutting—the past, the present and the future. Ann CIRP 40:587–594CrossRefGoogle Scholar
  2. 2.
    Kouno E (1984) A fast response piezoelectric actuator for servo correction of systematic errors in precision machining. Ann CIRP 33:369–372CrossRefGoogle Scholar
  3. 3.
    Dow AT, Miller HM, Falter JP (1991) Application of a fast tool servo for diamond turning of nonrotationally symmetric surfaces. Precis Eng 13:243–250CrossRefGoogle Scholar
  4. 4.
    O’Neal GP, Min BK, Pasek ZJ, Koren Y (2001) Integrated structural/control of micro-positioner for boring bar tool insert. J Intell Mater Syst Struct 12:617–627CrossRefGoogle Scholar
  5. 5.
    Kim HS, Kim EJ, Song BS (2004) Diamond turning of large off-axis aspheric mirrors using a fast tool servo with on-machine measurement. J Mater Process Tech 146:349–355CrossRefGoogle Scholar
  6. 6.
    Kim HS, Lee KI, Lee KM, Bang YB (2009) Fabrication of free-form surfaces using a long-stroke fast tool servo and corrective figuring with on-machine measurement. Int J Mach Tool Manuf 49:991–997CrossRefGoogle Scholar
  7. 7.
    Gan SW, Lim HS, Rahman M, Watt F (2007) A fine tool servo for global position error compensation for a miniature ultra-precision lathe. Int J Mach Tool Manuf 47:1302–1310CrossRefGoogle Scholar
  8. 8.
    Tian Y, Shirinzabeh B, Zhang D (2009) A flexure-based mechanism and control methodology for ultra-precision turning operation. Precis Eng 33:160–166CrossRefGoogle Scholar
  9. 9.
    Huo D, Cheng K (2008) A dynamics-driven approach to the design of precision machine tools for micro-manufacturing and its implementation perspectives. Proc Imech Part B J Eng Manuf 222:1–13CrossRefGoogle Scholar
  10. 10.
    Badel A, Qiu J, Sebald G, Guyomar D (2008) Self-sensing high speed controller for piezoelectric actuator. J Intell Mater Syst Struct 19:395–405CrossRefGoogle Scholar
  11. 11.
    Badel A, Breton RL, Formosa F, Hanene S, Lottin J (2014) Precise positioning and active vibration isolation using piezoelectric actuator with hysteresis compensation. J Intell Mater Syst Struct 25:155–163CrossRefGoogle Scholar
  12. 12.
    Javarez Junior L, Duduch JG (2012). Porta ferramenta assistido para usinagens de precisão e ultraprecisão. BR n. PI 10.2012.031753.2. 13 Dec 2012Google Scholar
  13. 13.
    Javarez Junior L, Duduch JG, Gonçalves AM Otoboni JA. (2013) Design and construction of a novel assisted tool-holder. In: 22nd international congress of mechanical engineering (COBEM). November 3–7, Ribeirão Preto, SP, BrazilGoogle Scholar

Copyright information

© The Brazilian Society of Mechanical Sciences and Engineering 2018

Authors and Affiliations

  1. 1.UTFPRPonta GrossaBrazil
  2. 2.São CarlosBrazil

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