Original scientific paper

https://doi.org/10.17559/TV-20260206003377

Experimental Results on Surface Roughness in Oblique Turning of C45 Carbon Steel

Mitruț Puriciuc ; Transilvania University of Brasov, Faculty of Technological Engineering and Industrial Management, Department of Engineering and Industrial Management, Brasov 500414, Bulevardul Eroilor 29, Romania
Cristian Pisarciuc ; Transilvania University of Brasov, Faculty of Technological Engineering and Industrial Management, Department of Engineering and Industrial Management, Brasov 500414, Bulevardul Eroilor 29, Romania
Romeo Cioară ; Transilvania University of Brasov, Faculty of Technological Engineering and Industrial Management, Department of Engineering and Industrial Management, Brasov 500414, Bulevardul Eroilor 29, Romania *

* Corresponding author.

Abstract

This study presents the results of an experimental investigation into the influence of the inclination angle of a straight cutting edge on surface roughness in external cylindrical oblique turning of C45 carbon steel. The research is based on an original patent-pending lathe tool, having a straight edge positioned tangentially to the workpiece and with an adjustable inclination relative to its axis. Machining tests were conducted using a constant depth of cut and varying inclination angles of the cutting straight edge, feed rates, and spindle speeds. Surface roughness was measured using an electronic profilometer and compared with results obtained using a conventional ISO 1 turning tool under the same processing conditions. The inclined-edge tool consistently produced lower Ra values, particularly at low cutting speeds and medium feed rates. The findings confirm the potential of oblique turning to achieve very good surface finishes, especially in low-speed machining regimes.

Keywords

C45 carbon steel; experimental results; oblique turning; surface roughness

Hrčak ID:

353063

URI

https://hrcak.srce.hr/353063

Publication date:

7.11.2026.

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