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Production Engineering

, Volume 11, Issue 4–5, pp 383–388 | Cite as

Influence of asymmetric cutting edge roundings on surface topography

  • O. Maiss
  • T. Grove
  • B. Denkena
Production Process

Abstract

For finishing operations in machining, hardened steel hard turning can compete with grinding operations by means of accuracy and productivity. In the past research focussed on the effect of process parameters and tool macro geometry on the resulting surface roughness. Recent investigations show, that the cutting edge micro geometry is an important factor to influence surface quality. The knowledge generated by new methods displays the importance of asymmetric cutting edge roundings on cutting forces, chip formation and tool life. It is known, that chip formation also affects the resulting surface quality. Therefore, this paper investigates the effect of asymmetric cutting edge roundings on the resulting surface roughness in hard turning of roller bearing inner rings. Cutting tests with differently shaped cutting edges and two different feed values are conducted. The resulting surface roughness is measured. The consequent surface quality is explained by geometric coherences between uncut chip thickness and stresses along the cutting edge and the effect of material side flow. It is found, that the cutting edge geometry and the resulting stress distribution around the cutting edge affects the generated surface quality.

Keywords

Hard turning Roughness Cutting edge geometry 

Notes

Acknowledgements

The authors thank the DFG (German Research Foundation) for supporting this project in the context of the research program “Resource Efficient Machine Elements (SPP1551)”.

References

  1. 1.
    Tönshoff HK, Arendt C, Ben Amor R (2000) Cutting of hardened steel. Ann CIRP 49(2):547–566CrossRefGoogle Scholar
  2. 2.
    Brammertz P-H (1961) Die Entstehung der Oberflächenrauheit beim Feindrehen. Industrie-Anzeiger 2:25–32Google Scholar
  3. 3.
    Thiele JD, Melkote SN (1999) Effect of cutting edge geometry and workpiece hardness on surface generation in finish hard turning of AISI 52100 steel. J Mater Process Technol 94:216–226CrossRefGoogle Scholar
  4. 4.
    Sokolowski AP (1955) Präzision in der Metallbearbeitung. VEB Verlag Technik, BerlinGoogle Scholar
  5. 5.
    Albrecht P (1960) New developments in the theory of metal-cutting process—part I. ASME Trans J Eng Ind 84(4):348–358CrossRefGoogle Scholar
  6. 6.
    Brandt X (1995) Titel, Dr.-Ing. Dissertation, Universität HannoverGoogle Scholar
  7. 7.
    Denkena B, Grove T, Maiss O (2015) Influence of the cutting edge radius on surface integrity in hard turning of roller bearing inner rings. Prod Eng 9(3):299–305CrossRefGoogle Scholar
  8. 8.
    Guddat J, M’Saoubi R, Alm P, Meyer D (2011) Hard turning of AISI 52100 using PSBN wiper geometry inserts and the resulting surface integrity. Proc Eng 19:118–124CrossRefGoogle Scholar
  9. 9.
    Grzesik W (2008) Influence of tool wear in surface roughness in hard turning using differently shaped ceramic tools. Wear 265:327–335CrossRefGoogle Scholar
  10. 10.
    Pekeharing AJ, Gieszen CA (1971) Material side flow in finish turning. Ann CIRP 20:21–22Google Scholar
  11. 11.
    Kishawy HA, Elbestawi MA (1999) Effects of process parameters on material side flow during hard turning. Int J Mach Tools Manuf 39:1017–1030CrossRefGoogle Scholar
  12. 12.
    Liu K, Melkote SN (2006) Effect of plastic side flow on surface roughness in micro-turning process. Int J Mach Tools Manuf 46:1778–1785CrossRefGoogle Scholar
  13. 13.
    Denkena B, Koehler J, Rehe M (2012) Influence of the honed cutting edge on tool wear and surface integrity in slot milling of 42CrMo4 steel. Proc CIRP 1:190–195CrossRefGoogle Scholar
  14. 14.
    Denkena B, Lucas A, Bassett E (2011) Effects of the cutting edge microgeometry on tool wear and its thermo-mechanical load. CIRP Ann Manuf Technol 60(1):73–76CrossRefGoogle Scholar
  15. 15.
    Bassett E, Koehler J, Denkena B (2012) On the honed cutting edge and its side effects during orthogonal turning operations of AISI1045 with coated WC-Co inserts. CIRP J Manuf Sci Technol 5(2):108–126CrossRefGoogle Scholar
  16. 16.
    Fulemová J, Rehor J (2015) Influence of form factor of the cutting edge on tool life during finishing milling. Proc Eng 100:682–688CrossRefGoogle Scholar
  17. 17.
    Denkena B, Biermann D (2014) Cutting edge geometries. CIRP Ann Manuf Technol 63(2):631–653CrossRefGoogle Scholar
  18. 18.
    Altintas Y, Eynian M, Onozuka H (2008) Identification of dynamic cutting force coefficients and chatter stability with process damping. CIRP Ann Manuf Technol 57(1):371–374CrossRefGoogle Scholar
  19. 19.
    Rehe M (2015) Herleitung prozessbezogener Kenngrößen der Schneidkantenverrundung im Fräsprozess, Dr.-Ing. Dissertation, Leibniz Universität HannoverGoogle Scholar

Copyright information

© German Academic Society for Production Engineering (WGP) 2017

Authors and Affiliations

  1. 1.Institute of Production Engineering and Machine ToolsLeibniz Universitaet HannoverHannoverGermany

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