A comprehensive characterization of 3D surface topography induced by hard turning versus grinding

R. A. Waikar, Yuebin Guo

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

Surface topography induced by precision machining is critical for component performance. Four representative surface topographies of turned and ground surfaces were prepared at "extreme" machining conditions (gentle and abusive) and compared in terms of 3-dimensional (3D) surface features of amplitude, area and volume, spatial, and hybrid parameters. The 3D surface topography maps revealed the anisotropic and repeatable nature of a turned surface which was in sharp contrast with the random and isotropic nature of a ground surface. In general, a gentle turned surface has higher values of amplitude parameters (arithmetic mean, root mean square, maximum height of summits, maximum depth of valleys, and 10-point height) than an abusively turned surface, whereas the opposite was true for the ground counterparts. Only the gentle ground surface has a negative skewness which means that the topography distribution is more biased towards the valley side. The larger kurtosis value of the abusively ground surface implies a more peaked surface topography. The gentle ground and abusively turned surfaces have a much larger bearing area ratio and therefore better bearing capacity than the gentle turned and abusively ground ones. The abusively ground surface has higher fluid retainability than other surfaces in terms of mean void volume. However, surface performance, such as wear and fatigue is dependent both on surface topography as well as mechanical property and relies on the dominance of the individual aspect.

Original languageEnglish (US)
Pages (from-to)189-199
Number of pages11
JournalJournal of Materials Processing Technology
Volume197
Issue number1-3
DOIs
StatePublished - Feb 1 2008

Fingerprint

Surface Topography
Grinding
Surface topography
Machining
Bearings (structural)
Kurtosis
Skewness
Topography
Voids
Bearing capacity
Mean Square
Fatigue
Mechanical Properties
Biased
Extremes

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Computer Science Applications
  • Metals and Alloys
  • Industrial and Manufacturing Engineering

Keywords

  • Machining
  • Surface integrity
  • Surface topography

Cite this

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A comprehensive characterization of 3D surface topography induced by hard turning versus grinding. / Waikar, R. A.; Guo, Yuebin.

In: Journal of Materials Processing Technology, Vol. 197, No. 1-3, 01.02.2008, p. 189-199.

Research output: Contribution to journalArticle

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