Abstract
The performance of very hard and strong pure Al2O3 ceramics with grain sizes of 0.5–0.7 pm is investigated on machining hardened steel (HRC ≈ 60) and globular hard cast iron (HRC ≈ 43). These ceramics are successfully applied even at high speed (300 m/min) or with a high feed rate (0.3 mm/rev) and depth of cut (2 mm). Surprisingly, the new ceramics surpass CBN tools on discontinuous and interrupted conditions.
The behaviour of pure submicrometre alumina tools is compared with new Al2O3/Ti(C,O) composites of the same grain size and with advanced commercial grades.
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References
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© 1999 Springer-Verlag Wien
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Krell, A., Blank, P., Berger, LM., Richte, V. (1999). High-Speed Continuos and Discontinuos Machining of Hardened Steel and Hard Cast Iron Using Submicrometer Ceramics on the Basis of Al2O3. In: Kuljanic, E. (eds) AMST ’99. International Centre for Mechanical Sciences, vol 406. Springer, Vienna. https://doi.org/10.1007/978-3-7091-2508-3_11
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DOI: https://doi.org/10.1007/978-3-7091-2508-3_11
Publisher Name: Springer, Vienna
Print ISBN: 978-3-211-83148-9
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