International Journal of Precision Engineering and Manufacturing

  • 제9권2호
  • /
  • Pages.63-68
  • /
  • 2008
  • /
  • 2234-7593(pISSN)
  • /
  • 2005-4602(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

Evaluation of Ultrasonic Vibration Cutting while Machining Inconel 718

  • Nath, Chandra (Department of Mechanical Engineering, National University of Singapore) ;
  • Rahman, Mustafizur (Department of Mechanical Engineering, National University of Singapore)
  • 발행 : 2008.04.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Hard and brittle materials, such as Ni- and Ti-based alloys, glass, and ceramics, are very useful in aerospace, marine, electronics, and high-temperature applications because of their extremely versatile mechanical and chemical properties. One Ni-based alloy, Inconel 718, is a precipitation-hardenable material designed with exceptionally high yield strength, ultimate tensile strength, elastic modulus, and corrosion resistance with outstanding weldability and excellent creep-rupture properties at moderately high temperatures. However, conventional machining of this alloy presents a challenge to industry. Ultrasonic vibration cutting (UVC) has recently been used to cut this difficult-to-machine material and obtain a high quality surface finish. This paper describes an experimental study of the UVC parameters for Inconel 718, including the cutting force components, tool wear, chip formation, and surface roughness over a range of cutting conditions. A comparison was also made between conventional turning (CT) and UVC using scanning electron microscopy observations of tool wear. The tool wear measured during UVC at low cutting speeds was lower than CT. UVC resulted in better surface finishes compared to CT under the same cutting conditions. Therefore, UVC performed better than CT at low cutting speeds for all measures compared.

키워드

참고문헌

  1. Jin,M. and Murakawa, M., "Development of a practical ultrasonic vibration cutting tool system," J. Mater. Process. Technol., Vol. 113, No. 1-3, pp. 342-347, 2001 https://doi.org/10.1016/S0924-0136(01)00649-5
  2. Zhou, M., Wang, X. J., Ngoi, B. K. A. and Gan, J. G. K., "Brittle-ductile transition in the diamond cutting of glasses with the aid of ultrasonic vibration," J. Mater. Process. Technol., Vol. 121, No.-3, pp. 243-251, 2002 https://doi.org/10.1016/S0924-0136(01)01262-6
  3. Xiao, M., Sato, K., Karube, S. and Soutome, T., "The effect of tool nose radius in ultrasonic vibration cutting of hard metal," Int. J. Mach. Tools Manuf., Vol. 43, No. 13, pp. 1375-1382, 2003 https://doi.org/10.1016/S0890-6955(03)00129-9
  4. Nath, C., Rahman, M. and Andrew, S. S. K., "A study on ultrasonic vibration cutting of low alloy steel," J. Mater. Process. Technol., Vol. 192-193, pp. 159-165, 2007 https://doi.org/10.1016/j.jmatprotec.2007.04.047
  5. Heo, S. J., "Machining characteristics of cemented carbides in micro cutting within SEM," International Journal of Precision Engineering and Manufacturing, Vol. 5, No. 3, pp. 35-42, 2004
  6. Inconel 718, http://www.espimetals.com/tech/inconel718.pdf
  7. Babitsky, V. I., Mitrofanov, A. V. and Silberschmidt, V. V., "Ultrasonically assisted turning of aviation materials: simulations and experimental study," Ultrasonics, Vol. 42, No. 1-9, pp. 81-86, 2004 https://doi.org/10.1016/j.ultras.2004.02.001
  8. Xiao, M., Wang, Q. M., Sato, K., Karube, S., Soutome, T. and Xu, H., "The effect of tool geometry on regenerative stability in ultrasonic vibration cutting," Int. J. Mach. Tools Manuf., Vol. 46, No. 5, pp. 492-499, 2006 https://doi.org/10.1016/j.ijmachtools.2005.07.002
  9. Isobe, H., Hara, K., Kyusojin, A., Okada, M. and Yoshihara, H., "Ultrasonically assisted grinding for mirror surface finishing of dies with electroplated diamond tools," International Journal of Precision Engineering and Manufacturing, Vol. 5, No. 3, pp. 35-42, 2004
  10. Kim, J. D. and Choi, I. H., "Micro surface phenomenon of ductile cutting in the ultrasonic vibration cutting of optical plastics," J. Mater. Process. Technol., Vol. 68, No. 1, pp. 89-98, 1997 https://doi.org/10.1016/S0924-0136(96)02546-0
  11. Mitrofanov, A. V., Ahmed, N., Babitsky, V. I. and Silberschmidt, V. V., "Effect of lubrication and cutting parameters on ultrasonically assisted turning of Inconel 718," J. Mater. Process. Technol., Vol. 162-163, pp. 649-654, 2005 https://doi.org/10.1016/j.jmatprotec.2005.02.170
  12. Babitsky, V. I., Kalashnikov, A. N., Meadows, A. and Wijesundara, A. A. H. P., "Ultrasonically assisted turning of aviation materials," J. Mater. Process. Technol., Vol. 132, No. 1-3, pp. 157-167, 2003 https://doi.org/10.1016/S0924-0136(02)00844-0
  13. Customer order number OPO 7814, Superalloys, Stainless and Tool Steels, Hytemp Nickel Alloys Ltd. 1997
  14. Oomen, J. M., and Eisses, J., "Wear of mono-crystalline diamond tools duringultra-precision machining of nonferrous metals," Precision Engineering, Vol. 14, No. 4, pp. 206-218, 1992 https://doi.org/10.1016/0141-6359(92)90018-R
  15. Skelton, R. C., "Effect of ultrasonic vibration on the turning process," International Journal of Machine Tool Design and Research, Vol. 9, No. 4, pp. 363-374, 1969 https://doi.org/10.1016/0020-7357(69)90020-1