Manufacturing Technology 2015, 15(2):188-191 | DOI: 10.21062/ujep/x.2015/a/1213-2489/MT/15/2/188

Influence of Cutting Tool Overhangs at Machining of Hardened Steels

Karel Osička, Zuzana Fišerová, Jan Otoupalík
Faculty of Mechanical Engeniering, Brno University of Technology, Technická 2896/2, 616 69 Brno. Czech Republic

This article builds on existing results of testing hardened steel bearing ring machining. Grinding technology is preferably used for this area as a standard. Turning with cubic boron nitride has been used as an alternative machining technology. Results indicate that in mass production the values accuracy of degree IT 4 can be achieved. Arithmetic mean deviation of the profile is then in the range of Ra = 0.2 - 0.4 μm. During testing several kinds of cubic boron nitride material were used. The material that showed best results was chosen for further experiments. Subsequently it was tested under different cutting conditions on two types of machine tools. It was tested cutting in smaller range of depth of cut and wider feed values. The resultig feedrate and cutting depth which correspond to best result of arithmetic mean deviation of the profile Ra were selected from those tests. Subsequently, the testing was carried out at various cutting speeds and particularly at two different sizes of tool overhangs.

Keywords: hardened steel, CBN, cutting inserts, cutting speed

Published: April 1, 2015  Show citation

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Osička K, Fišerová Z, Otoupalík J. Influence of Cutting Tool Overhangs at Machining of Hardened Steels. Manufacturing Technology. 2015;15(2):188-191. doi: 10.21062/ujep/x.2015/a/1213-2489/MT/15/2/188.
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    References

    1. JAKUBOVIČOVÁ, L., SÁGA, M., VAŠKO, M. (2013). Impact Analysis of Mutual Rotation of Roller Bearing Rings on the Process of Contact Stresses in Rolling Elements. Manufacturing Technolog, vol. 13, no 1, Ústí nad Labem, pp. 50-54. ISSN 1213-2489. Go to original source...
    2. MÁDL, J. a kol. (2003). Jakost obráběných povrchů. UJEP, Ústí nad Labem, 180 s. ISBN 80-7044-639-4
    3. MASLOV, J. N., (1979). Teorie broušení kovů. SNTL, Praha, 246 s.
    4. OSIČKA, K., KALIVODA. M, CHLADIL, J.; MOURALOVÁ, K., OTOUPALÍK, J. (2013). Machining of hardened bearing steels. Journal Proceedings in manufacturing systems, vol. 8, no. 3, Universty Politehnica of Bucharest, Bucharest, pp. 171-176. ISSN: 2067-9238.
    5. OSIČKA, K., KALIVODA. M, CHLADIL, J., OTOUPALÍK, J. (2014). Contribution to turning hardened steel. Journal of International Scientific Publications: Materials, Methods and Technologies, vol. 8, no. 6, Sofie, pp.705-712. ISSN 1314-7269
    6. SHAW, M. C. (2005) Metal Cutting Principles, Oxford university press, Oxford, pp. 651. ISBN 0-19-514206-3
    7. BUMBÁLEK, B. (2001). Material Machinability - Decisive Factor for Development of Machining Technology and Creation of Technological Databank Informations. Manufacturing Technology, vol. 1, pp. 3-10. ISSN 1213-2489.
    8. KOCMAN, K., PROKOP, J. (2004) Cutting Tools for Hard Material Turning. Manufacturing Technology, Vol. 4, pp. 5-10. ISSN 1213-2489.
    9. CHLADIL, J. (2010) Rychlostní poměry při CNC obrábění rovinných křivek. Strojírenská technologie, roč. XV., č. 3, pp. 48-51. ISSN 1211-4162.
    10. MÁDL, J., SUTANTO, H. (2007) Hard Machining and Residual Stresses. Manufacturing Technology, vol. 7, pp. 5-10, ISSN 1213-2489.
    11. NOVÁK, M. (2011). Surface quality of hardened steels after grinding. Manufacturing Technology, vol. 11, pp. 55-59, ISBN 1213-2489. Go to original source...
    12. MÁDL, J. (2012). Surface Properties in Precise and Hard Machining. Manufacturing Technology, vol. 12, no. 13, pp. 158-166. ISSN 1213-2489. Go to original source...
    13. FOREJT, M., PÍŠKA, M. (2006). Teorie obrábění, tváření a nástroje, Akademické nakladatelství CERM, Brno, 225 s., ISBN 80-214-2374-9
    14. HUMÁR, A. (2008). Materiály pro řezné nástroje. MM publishing, s.r.o., Praha, 240 s., ISBN 978-80-254-2250-2

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