Superficial Hardening in Orthogonal Cutting

Croitoru, Sorin-Mihai; Majstorovic, Vidosav D.

doi:10.1016/j.procir.2016.06.017

Cited by 3 publications

(3 citation statements)

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“…-Research other complex cutting operations than turning or even plastic deformation operations (because cutting process is, essentially, a plastic deformation process: hardening broaches suggested by [1] or ball burnishing suggested by [1,11].…”

Section: Discussionmentioning

confidence: 99%

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Superficial hardened layer of cut surface by turning

Croitoru¹,

Voiculescu²,

Trușcă³

2017

MATEC Web Conf.

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Abstract.One of research methods in metal cutting process is to measure hardness in the contact zone between cutting tool and workpiece. The objective of the performed research was to determine thickness and hardness of the superficial layer of cut surface due to cutting process, both orthogonal and complex cutting. The most important finding was that thickness of the superficial hardened layer is very thin under considered conditions, less than 0.01 … 0.02 mm. This research should be continued.

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Section: Discussionmentioning

confidence: 99%

“…This paper is part of a study related to the hardness of the cut surface in case of orthogonal cutting [1] and complex cutting [2] of C45 steel. It presents a review of the mentioned papers and some new SEM micrographs.…”

Section: Introductionmentioning

confidence: 99%

Superficial hardened layer of cut surface by turning

Croitoru¹,

Voiculescu²,

Trușcă³

2017

MATEC Web Conf.

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“…A cryogenic treatment improves the surface roughness by decreasing the retained austenite matrix to martensite [27]. The hardening also influences the parameters of orthogonal cutting [28].…”

Section: Introductionmentioning

confidence: 99%

Effect of Heat Treatment on the Resulting Dimensional Characteristics of the C45 Carbon Steel after Turning

Moravčíková

Moravčík

Palcut

2022

Metals

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The presented article deals with the influence of the heat treatment of C45 steel on the surface quality after turning. Turning is a machining technology used to prepare specific geometrical characteristics of surface and dimensional quality. In the present paper, the same turning conditions were used for the turning treatment of differently heat-treated steels. The soft annealed state, normalized state, hardened state, quenched and tempered at 530 °C state and quenched and tempered at 660 °C state have been analyzed. By using this approach, it has been possible to evaluate the effects of hardening and machining on the resulting parameters after turning (roughness, cylindricity and circularity). The highest hardness was observed in the steel after the hardening process (694 ± 9 HV 10). The hardening has negatively influenced the surface quality. The high hardness was related to martensite formation and caused a damage to the cutting edge of the cut insert used, leading to a significant change in geometrical accuracy. The cylindricity change achieved 0.15 ± 0.03 mm which was significantly higher compared to the theoretical value of the diameter of the machined steel bar. An inaccuracy was also observed in diameter dimension. These inaccuracies were caused by the wear of the cutting edge of the tool used in cutting parameters setting.

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