Roughness variations in cylinder liners induced by honing tools’ wear
2015 (English)In: Precision engineering, ISSN 0141-6359, E-ISSN 1873-2372, Vol. 41, p. 40-46Article in journal (Refereed) Published
Abstract [en]
The manufacturing and finishing (honing) of cylinder liners for the automotive industry is a constant challenge in order to reduce friction losses and oil consumption. A better knowledge of surfaces generated during plateau honing is then required for optimization of the process. Despite a well-known and controlled honing process, variations in surface roughness appear due to honing tool wear and need to be mapped and analyzed. The following paper proposes to map the variations in roughness by using confocal 3D measuring equipment able to inspect any area of a cylinder liner. Six motor blocks, each with five cylinder liners, were evaluated with 20 topography measurements per liner (giving six hundred 3D measurements in total). In addition to standard 3D roughness parameters, tailor made parameters extracting honing texture information are computed. The results show that only a few parameters (Spk, Ssc and Sk) do correlate with the honing tool wear specific to each cylinder. Tailor made parameters indicate similar results. Indeed, as the honing tool wears down, the cylinder liner surface gets rougher plateau or peaks and sharper asperities indicating that ploughing occurs instead of cutting. In future, experimental models could be built in order to perform production and functional optimizations. © 2015 Elsevier Inc. All rights reserved.
Place, publisher, year, edition, pages
Philadelphia, PA: Elsevier, 2015. Vol. 41, p. 40-46
Keywords [en]
3D surface topography, Automotive motor blocks, Cylinder liner, Plateau honing, Tool wear
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
URN: urn:nbn:se:hh:diva-28328DOI: 10.1016/j.precisioneng.2015.01.004ISI: 000355024400004Scopus ID: 2-s2.0-84928374624OAI: oai:DiVA.org:hh-28328DiVA, id: diva2:814005
Note
The authors wish to thank NanoFocus AG and T. Hoering, Volvo Car Corporation and L. Fahlgren, F. Strömstedt, F. Falck for their financial support, their contribution in man hours and material. The authors are also thankful for the collaboration with Digital Surf through Mount Shasta program.
2015-05-252015-05-252017-12-04Bibliographically approved