Manufacturing Technology 2012, 12(2):192-197 | DOI: 10.21062/ujep/x.2012/a/1213-2489/MT/12/2/192

G-Ratio in hardened steel grinding with different coolants

Martin Novak, Roman Dolezal
Faculty of Production Technology and Management, J. E. Purkynì University in Usti nad Labem. Na Okraji 1001, 400 01 Usti nad Labem. Czech Republic

This article deals with grinding of the hardened and tempered steel in different coolants. The G-ratio is one of the important parameters of grinding process and shows efficiency of this. The development of machining technologies is still moving forward, there are new materials and types of tool using in production and manufacturing. With a new materials usage we want better parameters of process, e. g. higher G-ratio, lower heat balance and better surface quality after machining. New types of abrasive grains that we used are based on Al2O3 - microcrystalline corundum and parameter of G-ratio and surface quality after grinding will be described in this article. For experiment were chosen three types of coolants and one of grinding wheel. We can see changes of G-ratio and surface quality during grinding at different coolants.

Keywords: Grinding, G-ratio, Microcrystalline corundum, Wear

Published: December 1, 2012  Show citation

ACS AIP APA ASA Harvard Chicago IEEE ISO690 MLA NLM Turabian Vancouver
Novak M, Dolezal R. G-Ratio in hardened steel grinding with different coolants. Manufacturing Technology. 2012;12(2):192-197. doi: 10.21062/ujep/x.2012/a/1213-2489/MT/12/2/192.
Download citation

References

  1. HOLESOVSKY, F., NOVAK, M. (2009). Influence of grinding on machine parts with desing notches. In: Manufacturing Technology, vol. 9, no. 9., UJEP, Usti n. Labem, 40-46 pp. Go to original source...
  2. HOLESOVSKY, F., NAPRSTKOVA, N., NOVAK, M. (2012). GICS for grinding process optimization. In: Manufacturing Technology, vol. 12., no. 12., UJEP, Usti nad Labem, 22-26 pp. Go to original source...
  3. JERSÁK, J. (2012). Vliv dynamickeho vyvazeni brousiciho kotouce na drsnost povrchu obrobenych soucasti. In: Strojirenska technologie, vol. XVII., no. 1, 2., UJEP, Usti nad Labem, 27-33 pp.
  4. KOCMAN, K. (2012) Optimalizace dokoncovacich operaci vyrobnich procesu. In: Strojirenska technologie, vol. XVII., no. 1, 2., UJEP, Usti nad Labem, 164-169 pp.
  5. KUNDRAK, J. (2011). Alternative machining procedures of hardened steels. In Manufacturing Technology, vol. XI., no. 11., UJEP, Usti nad Labem, 32-39 pp. Go to original source...
  6. LUKOVICS, I., BILEK, O., HOLEMY, S. (2010). Development of Grinding Wheels for Tools Manufacturing. In: Manufacturing Technology, vol. 10., no. 10., UJEP, Usti nad Labem, 10-16 pp. Go to original source...
  7. MARINESCU, I., D., et all. (2007). Handbook of Machining with Grinding wheels. Boca Raton: CRC Press. 592 pp. Go to original source...
  8. MALKIN, S. (1989). Grinding Technology: Theory and applications of machining with abrasives. SME. 275pp.
  9. MULLER, M., VALASEK, P. (2012). Abrasive wear effect on Polyethylene, Polyamide 6 and polymeric particle composites. In Manufacturing Technology, vol. 12., no. 12., UJEP, Usti nad Labem, 55-59 pp. Go to original source...
  10. NOVAK M., LATTNER M., RUZICKA L., HOLESOVSKY F., (2010). Grinding and surface quality parameters at automotive parts machining. In Manufacturing Technology, vol. 10., no. 10., UJEP, Usti nad Labem, 36-38 pp. Go to original source...
  11. NOVAK, M. (2012). Influence of the Corrosion Surrounding on Surface Quality of Ground Hardened Steels In Key Engineerings Materials, vol. 496: Precision Machining IV. TTP. Zurich. 25 - 30 pp. WOS:000302674400005. Go to original source...
  12. NOVAK, M. (2011). Surface quality of hardened steels after grinding. In: Manufacturing Technology, vol. 11., no. 11., UJEP, Usti nad Labem, 55-59 pp. Go to original source...
  13. NOVAK, M. (2012). Surfaces with high precision of roughness after grinding. In Manufacturing Technology, vol. 12., no. 12., UJEP, Usti nad Labem, 66-70 pp. Go to original source...
  14. NOVAK, M., NAPRSTKOVA, N., RUZICKA. L. (2012). New ways in aluminium alloys grinding. In Key Engineerings Materials, vol. 496: Precision Machining IV. TTP. Zurich. 132 - 137 pp. WOS:000302674400023. Go to original source...
  15. VASILKO, K., MACUROVA, A. (2012). Two local extremes of cutting speed. In Manufacturing Technology, vol. 12., no. 12., UJEP, Usti nad Labem, 86-89 pp. Go to original source...
  16. MULLER, M., VALASEK P. (2012). Abrasive wear effect on Polyethylene, Polyamide 6 and polymeric particle composites. In Manufacturing Technology. Vol. 12, No.: 12. UJEP, Usti n. Labem. pp. 55-59. Go to original source...
  17. KALINCOVA, D., BARBORAK, O., ANDREJCAK, I. (2011). Quality of chrome layers of coining dies and its impact on their reliability and lifetime in operation. In: Kovove materialy. Vol. 49, no. 6, pp.457-461. Go to original source...