Summary
The paper details the machining of fully hardened MSI E52100 bearing steel (62 HRC) using commercial high and low concentration polycrystalline cubic boron nitride (PCBN) and conventional mixed ceramic tooling. Continuous turning tests were conducted under both roughing and finishing conditions and a full factorial experimental design was used to evaluate tool material performance. Under rough cutting conditions the PCBN tools presented higher wear resistance, whereas when finishing, the mixed alumina and low concentration PCBN provided consistently good results both with regard to tool life and workpiece surface finish. Sample SEM micrographs of worn tools are presented which suggest that diffusion and abrasive wear were the principal causes of tool failure. No evidence of built-up edge or notching (leading or trailing edge) was observed over the operating range. Three component cutting force measurement showed forces when roughing to be 6-9 times higher than when fmishing. Finally, a series of temperature measurement experiments are detailed using a remote implanted thermocouple.
Preview
Unable to display preview. Download preview PDF.
References
SKF Product Literature (1989), SKF(UK) Ltd.
HOOPER, R.M., SHAKIB,J.I., PARRY,A. and BROOKES,C.A. (1989) Mechanical properties, microstructure and wear of DBC50 — Industrial Diamond Review, 4(89): 170–173.
BOSSOM,P.K. (1991) The selection of high and low CBN cutting tool materials for automotive applications — Superabrasives’91, SME:1139–1160, Chicago, IL, USA.
BROOKES, K.J. (1992) World Directory and Handbook of Hardmetals, 5th edition, International Carbide Data.
HEATH,P. (1986) Structure, properties and applications of polycrystalline cubic boron nitride — 1986 SME and 14th NAMRC: 66–80 Minneapolis, Minnesota, USA.
HEATH,P.J. and DODSWORTH,J. (1987) Brazeable PCBN inserts for machining hardened steels and irons — South Afr. Mach. Tool Review, 20(3): 4–10.
JACK,D.H. (1986) Ceramic cutting tool materials — Materials & Design, 7(5): 267–273.
HOOPER,R.M. and BROOKES,C.A. (1984) Microstructure and wear of cubic boron nitride aggregate tools — 2nd Int. Conf. Science Hard Materials: 907–917, Rhodes.
NAYLON,D., LLEWELLYN,D. and KEANE,D. (1976) Control of machinability in medium-carbon steels-Met. Technol., (3): 254–271.
KÖNIG,W. and Neises,A. (1993) Wear mechanisms of ultrahard, non-metallic cutting materials — Wear, (162–164): 12–21.
TAKATSU,S., SHIMODA,H. and OTANI,K. (1983) Effects of CBN content on the cutting performance of polycrystalline CBN tools — Int. Journal of Refractory and Hard Metals, 2(4): 175–178.
OISHI,K. and NISHIDA,T. (1992) Study on the fracture characteristics of ceramic cutting tools (first report) — Wear, 154: 361–370.
OHTANI, T. (1991) Plastic deformation of ceramic tools in machining of hardened steel — Int. Journal of the Jap. Soc. of Prec. Eng., 25(1): 30–31.
NAKAYAMA, K., ARM, M. and KANDA,T. (1988) Machining characteristics of hard materials — Annals of the CIRP, 37 (1): 89–92.
BORDUI, D. (1988) Hard-part machining with ceramic inserts-Am. Ceram. Soc. Bull., 67(6):998–1001.
KÖNIG, W. and WAND, Th. (1987) Turning bearing steel with Amborite and ceramic-Industrial Diamond Review, 3(87): 117–120.
BARROW,G. (1973) A review of experimental and theoretical techniques for assessing cutting temperature — Annals of the CIRP, 22 (2): 203–211.
TAY,A.A.O. (1993) A review of methods of calculating machining temperature — Journal of Materials Processing Technology, 36(3): 225–257.
BHATTACHARYYA,S.K.,ASPINW ALL, D. K and NICOL,A.W. (1978) The application of polycrystalline compacts for ferrous machining — Proc. of the 19th Int. MTDR Conf.: 425–434.
EDA, H., KISHI, K. and HASHIMOTO, H. (1980) Wear resistance and cutting ability of a newly developed cutting tool — Cutting tool materials: Proc. Int. Conf., Ft. Mitchell, Kentucky, ASM: 265–280.
TÖNSHOFF, H.K., BUSSMANN, W. and STANSKE, C. (1986) Requirements on tools and machines when machining hard materials — Proc. of the 26th Int. MTDR: 349–357.
CROOKS,A.G., JONG,A. and WONG,W.C.K. (1988) Effect of machining parameters on CBN tool tip temperature — 4th Int. Conf. on Man. Eng. 1988: 33–36, Brisbane, Aus.
INTERNATIONAL STANDARDS ORGANISATION (1977) Specification for tool-life testing with single-point turning tools — ISO 3685:1977.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Copyright information
© 1995 Department of Mechanical Engineering University of Manchester Institute of Science and Technology
About this chapter
Cite this chapter
AbrĂ£o, A.M., Aspinwall, D.K., Wise, M.L.H. (1995). Tool Wear, Cutting Forces and Temperature Evaluation When Turning Hardened Bearing Steel Using PCBN and Ceramic Tool Materials. In: Kochhar, A.K. (eds) Proceedings of the Thirty-First International Matador Conference. Palgrave, London. https://doi.org/10.1007/978-1-349-13796-1_33
Download citation
DOI: https://doi.org/10.1007/978-1-349-13796-1_33
Publisher Name: Palgrave, London
Print ISBN: 978-1-349-13798-5
Online ISBN: 978-1-349-13796-1
eBook Packages: EngineeringEngineering (R0)