GEOMETRIC STRUCTURE OF THE C45 STEEL SURFACE AFTER CENTRIFUGAL BURNISHING AND PERPENDICULAR SHOT PEENING
 
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Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland
Publish date: 2018-06-01
 
Adv. Sci. Technol. Res. J. 2018; 12(2):20–28
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ABSTRACT:
The paper presents the research results of roughness and surface topography of the C45 non-alloy steel after centrifugal burnishing and perpendicular peening. The assessment of the geo-metric structure of the tested steel surface included the parameters: amplitude: Ra, horizontal: RSm, height: Rz, Rp and Rv, and Abbott-Firestone curve: Rpk, Rk and Rvk. Perpendicular shot peening was performed on a special position, while centrifugal burnishing on a 3-axis milling centre XH712G. The variable parameters during shot peening included the impact energy Ez = 40 ÷ 220 mJ and the distance between traces xs = 0,15 ÷ 0,5 mm. The machining conditions of centrifugal burnishing were selected in such a way that the perpendicular component of the impact energy, longitudinal feed and transverse travel correspond to the variable parameters of perpendicular shot peening. The T800 RC 120 -140 device of the Hommel – Etamic company with software was used for measuring surface roughness and topography.
CORRESPONDING AUTHOR:
Agnieszka Skoczylas   
Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland