Effect of Workpiece Hardness on Surface Microgeometry when Hard Turning with Ceramic Inserts

Abstract:

Hard turning provides an alternative to grinding in some finishing operations. This paper deals with analysis of part surface finishing when turning hardened steel heat-treated on hardness of 46, 55 and 60 HRC with mixed oxide ceramic inserts. Average surface roughness Ra has been widely used in industry it is known that the single parameter Ra is inadequate to define the functionality of a surface. Two different surfaces with similar values of Ra can behave differently under loading conditions. The surface profile 2D and 3D parameters are assessed. The influence of workpiece hardness on surface roughness parameters and cutting force components is investigated. Results show that finish hard turning with mixed ceramic tool produces surface profile comparable to those produced by grinding.

• Periodical: Key Engineering Materials (Volume 581)
• Pages: 176-181
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.581.176
• Online since: October 2013
• Authors: Ildikó Maňková, Jozef Beňo, Marek Vrabel'
• Keywords: Finish Hard Turning, Mixed Ceramics, Roughness Parameters, Surface Roughness (SR)

References

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