The roughness characterization in cylinders obtained by conventional and flexible honing processes
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Crankcase cylinders of hermetic compressors are produced in large numbers for refrigerators of domestic use. They are, usually, machined by using a three-stage honing process (roughing, semi-finishing, and finishing), and for their characterization during the quality control, an evaluation of roughness is carried out. Although the roughness represents a peerless factor to characterize the honed surfaces, its implementation is a challenge for scientists and technicians in general due to the difficulty of detecting the difference between the surface finish on different honing stages. This paper assesses the roughness of parts obtained by flexible honing applied after conventional honing process by using a portable surface roughness tester and an interferometer in white light mode (chromatic length aberration—CLA). An extensive evaluation of roughness was made using several roughness parameters, graphics, and curves that include the following: roughness profile, topographies, amplitude parameters, Rk family parameters, volume, and feature parameters. The measurement uncertainty associated with all roughness parameters was estimated by applying the methods proposed in the JCGM 101. The results obtained after flexible honing were compared with those found in parts machined by conventional honing. This experimentation showed that flexible honing process when applied after the conventional honing provided an essential improvement of the surface finish and an increase of the repeatability and the quality of honed parts. The volume and the feature parameters can be used as alternative to appropriately characterizing honed surfaces, because they were able of detecting the changes caused on the surface by different stage of honing process.
KeywordsSilicon carbide flex honing tool Feature parameters Volume parameters Rk family
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- 1.Miller ML (1993) Flexible honing. A study of cylinder wall microstructure. Proceedings understanding. Basics honing, SME – Soc. Mech. Eng.;9.Google Scholar
- 2.Barton G, Haasis K (1993) Characteristics of honing in: understanding the basics of honing. Soc Manuf Eng.;37.Google Scholar
- 5.International Organization for Standardization (1996) ISO 13565–2:1996 Geometrical Product Specifications (GPS) -- Surface texture: Profile method; Surfaces having stratified functional properties -- Part 2: Height characterization using the linear material ratio curve.Google Scholar
- 6.Zipin RB (1990) Analysis of the Rk surface roughness parameter proposals. Precis Eng 12(2):106–108. doi: 10.1016/0141-6359(90)90036-X
- 10.Bhushan B (2000) Modern tribology handbook. Volume 1. Chapter 2 surface roughness analysis and measurement techniques. CRC press. LLC. Boca Raton, Flórida, EUA, pp 49–120. ISBN 0-8493-8403-6.Google Scholar
- 11.Chand M, Mehta A, Sharma R, Ojha VN, Chaudhary KP (2011) Roughness measurement using optical profiler with self-reference laser and stylus instrument — a comparative study. Indian J Pure Appl. Phys.;49(May):335–339.Google Scholar
- 14.BIPM, IEC, IFCC, ILAC, ISO, IUPAC, OIML (2008) Evaluation of measurement data — Supplement 1 to the “Guide to the expression of uncertainty in measurement” — Propagation of distributions using a Monte Carlo method. Evaluation. JCGM 101:2(September):90.Google Scholar
- 15.International Organization for Standardization (1996) ISO 12085:1996 - Geometrical Product Specifications (GPS) -- Surface texture: Profile method -- Motif parameters.Google Scholar
- 17.Stout K, Sullivan P, Dong W, Mainsah E, Luo N, Mathia T, Zahouani H (1993) The development of methods for the characterisation of roughness in three dimensions. EUR(Luxembourg) 358.Google Scholar
- 19.Blateyron F (2013) Characterisation of areal surface texture. Capter 2 area filed parameters. Pp 15–43.Google Scholar
- 20.Petzing, J, Coupland J, Leach RK (2010) The measurement of rough surface topography using coherence scanning interferometry.Guide 116.Google Scholar