Journal of Materials Science and Engineering with Advanced TechnologyAuthor's: J. T. Maximov, G. V. Duncheva, I. M. Amudjev, K. K. Krumov and T. V. Kuzmanov
Pages: [177] - [201]
Received Date: October 17, 2010
Submitted by:
This article presents outcomes from comprehensive study of a new
single-roller burnishing technique of external cylindrical surfaces,
directed to achieving smaller roughness of workpieces made of low
alloyed constructional steel. The method differs from the conventional
roller burnishing because it is performed in conditions of tangential
and axial skid between the deforming roller having toroidal operating
surface and the workpiece being burnished. This positive effect for
roughness has been achieved by a single-roller burnishing device,
allowing crossing of the roller and the burnished workpiece axes, as
well as adjusting the crossing angle. The process has been studied
experimentally by an optimal composed-second-order experimental
design. The levels of the burnishing parameters have been determined
by means of a preliminary experiment and a one-factor-at-a-time method
has been employed to this purpose. On the basis of a conducted
analysis of variance (ANOVA) and analysis of regression, the optimal
burnishing parameters for obtaining minimal roughness have been
determined. Using the obtained optimum parameters, an additional
experiment has been carried out with 10 types of lubricants. It has
been found that the roughness obtained is minimum when the liquid
lubricants Blasocut 2000 and kerosene were used. By means of an
additional experiment conducted with the optimum burnishing parameters
and using Blasocut 2000, it has been found that the optimal number of
passes is three, and the minimum roughness 
has been obtained.
surface integrity, roller burnishing, surface finish, roughness.
