Influence of Thermal and Mechanical Shocks to Cutting Edge Tool Life
Commenced in January 2007
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Edition: International
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Influence of Thermal and Mechanical Shocks to Cutting Edge Tool Life

Authors: Robert Cep, Lenka Ocenasova, Jana Novakova, Karel Kouril, Jan Valicek, Branimir Barisic


This paper deals with the problem of thermal and mechanical shocks, which rising during operation, mostly at interrupted cut. Here will be solved their impact on the cutting edge tool life, the impact of coating technology on resistance to shocks and experimental determination of tool life in heating flame. Resistance of removable cutting edges against thermal and mechanical shock is an important indicator of quality as well as its abrasion resistance. Breach of the edge or its crumble may occur due to cyclic loading. We can observe it not only during the interrupted cutting (milling, turning areas abandoned hole or slot), but also in continuous cutting. This is due to the volatility of cutting force on cutting. Frequency of the volatility in this case depends on the type of rising chips (chip size element). For difficult-to-machine materials such as austenitic steel particularly happened at higher cutting speeds for the localization of plastic deformation in the shear plane and for the inception of separate elements substantially continuous chips. This leads to variations of cutting forces substantially greater than for other types of steel.

Keywords: Cutting Tool Life, Heating, Mechanical Shocks, Thermal Shocks

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[1] J. Houdek, K. Kouril. "Sintered Carbides Resistivity against Thermal and Mechanical Shocks 3 parts (in Czech)," in MM Prumyslove Spektrum 04,05,06/2004. Available: a-mechanickym-razum.
[2] A. Czan, D. Steklac, D. Stancekova, "Tools for High Productive Machining of Bearing materials by Turning (in Slovak)," in Tools 2005. Zlin, 2005.
[3] I. Mrkvica. "Utilization of Fine-grained Cemented Carbides for Gear Manufacturing," in Manufacturing Technology, 2002, vol. 2. ISSN 1213-2489.
[4] J. Dobransky, M. Hatala. "Influence of selected technological parameter to quality parameters by injection moulding, " in Annals of DAAAM for 2007 & proceedings of the 18th International DAAAM Symposium : Intelligent Manufacturing & Automation: Focus on Creativity, Responsibility, and Ethics of Engineers, Zadar, Croatia. Vienna : DAAAM International, 2007. 2 p. ISBN 3-901509-58-5.
[5] K. Vasilko. Analytick├í te├│ria trieskového obr├íbania. (In Slovak). 1.vyd. Pre┼íov 2007. 338 p. ISBN 978-80-8073-759-7