Surface layer microhardness and roughness after applying a vibroburnishing process

Nagîţ, Gheorghe; Slătineanu, Laurenţiu; Dodun, Oana; Rîpanu, Marius Ionuţ; Mihalache, Andrei Marius

doi:10.1016/j.jmrt.2019.07.044

Cited by 15 publications

(12 citation statements)

References 22 publications

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“…was introduced in the following form (1) To solve equation (19), we used the segment half-division method. To achieve the desired accuracy, the calculations were performed using the Mathcad computer algebra system.…”

Section: Modern Technological Complexes Allow Forming Regular Microreliefs On Surfaces Of Any Complexity and With Any Geometrical Parametmentioning

confidence: 99%

“…In [19], regular microreliefs were formed on the outer cylindrical surfaces of specimens from medium-carbon steel 1C45 and the low-carbon alloy steel 18CrMn4-4, which were used to establish the influence of processing modes on surface roughness and hardness. One of the main research findings is that the authors have proven a significant influence of the vibration amplitude on the surface roughness parameter Ra and called it the most determining factor.…”

Section: Introductionmentioning

confidence: 99%

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Ensuring a Stable Relative Area of Burnishing of Partially Regular Microrelief Formed on End Surfaces of Rotary Bodies

Dzyura

Maruschak

Tkachenko

et al. 2021

Strojnícky Časopis - Journal of Mechanical Engineering

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The scheme of arrangement of grooves of partially regular microrelief of type II shifted by 0.5 angular pitch is considered. Such grooves are formed by vibration on end faces of rotary bodies. An analytical dependence was obtained to determine the relative area of a partially regular microrelief depending on the geometric parameters of V-shaped grooves. The parameters of the grooves of a partially regular microrelief formed at different distances from the center of rotation are determined, at which the value of the relative area of the partially regular microrelief formed on the treated surface will be stable.

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Section: Modern Technological Complexes Allow Forming Regular Microreliefs On Surfaces Of Any Complexity and With Any Geometrical Parametmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ensuring a Stable Relative Area of Burnishing of Partially Regular Microrelief Formed on End Surfaces of Rotary Bodies

Dzyura

Maruschak

Tkachenko

et al. 2021

Strojnícky Časopis - Journal of Mechanical Engineering

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“…The surface roughness is of great importance among the technological factors because it is well known that fatigue failure usually originates on the surface of the part. There is evidence that, for steel, the higher the tensile strength, the more critical is the surface finish [ 11 , 12 ]. Because the surface condition has a significant effect on fatigue strength, some of the traditionally used finishing processes of machine parts, such as milling, turning, grinding, polishing, lapping, etc., cannot completely meet all requirements.…”

Section: Introductionmentioning

confidence: 99%

Impact of Ball Burnished Regular Reliefs on Fatigue Life of AISI 304 and 316L Austenitic Stainless Steels

et al. 2021

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The present work describes an experimental investigation of the fatigue durability of AISI 304 and AISI 316L austenitic stainless steels, which have regular reliefs (RR) of the IV-th type, formed by ball burnishing (BB) on flat surfaces, using a computer numerical control (CNC) milling center. The methodology and the equipment used for obtaining regular reliefs, along with a vibration-induced fatigue test setup, are presented and described. The results from the BB process and the fatigue life experiments of the tested austenitic stainless steels are gathered, using the approach of factorial design experiments. It was found that the presence of RR of the IV-th type do not worsen the fatigue strength of the studied steels. The Pareto, t-test and Bayesian rule techniques are used to determine the main effects and the interactions of significance between ball burnishing regime parameters. A stochastic model is derived and is used to find when the probability of obtaining the maximum fatigue life of parts made of AISI 304 or 316L reaches its maximum value. It was found that when the deforming force, the amplitude of the sinewaves and their wavenumber are set at high values, and the feed rate is set at its low value, the probability to reach maximum fatigue life for the parts made of AISI 304 or 316L is equal to 97%.

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“…The above information, and the information included in other works [20][21][22][23][24][25], refer to changes in some operating properties when a surface layer with a thickness of, at most, several hundred micrometers is affected by the processing methods by which the analyzed surfaces were made.…”

Section: Introductionmentioning

confidence: 99%

Influence of Some Microchanges Generated by Different Processing Methods on Selected Tribological Characteristics

et al. 2021

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Different processing methods can change the physical–mechanical properties and the microgeometry of the surfaces made by such processes. In turn, such microchanges may affect the tribological characteristics of the surface layer. The purpose of this research was to study the tribological behavior of a test piece surfaces analyzing the changes on the values of the coefficient of friction and loss of mass that appear in time. The surfaces subjected to experimental research were previously obtained by turning, grinding, ball burnishing, and vibroburnishing. The experimental research was performed using a device adaptable to a universal lathe. Mathematical processing of the experimental results led to the establishment of power-type function empirical models that highlight the intensity of the influence exerted by the pressure and duration of the test on the values of the output parameters. It was found that the best results were obtained in the case of applying ball vibroburnishing as the final process.

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Surface layer microhardness and roughness after applying a vibroburnishing process

Cited by 15 publications

References 22 publications

Ensuring a Stable Relative Area of Burnishing of Partially Regular Microrelief Formed on End Surfaces of Rotary Bodies

Ensuring a Stable Relative Area of Burnishing of Partially Regular Microrelief Formed on End Surfaces of Rotary Bodies

Impact of Ball Burnished Regular Reliefs on Fatigue Life of AISI 304 and 316L Austenitic Stainless Steels

Influence of Some Microchanges Generated by Different Processing Methods on Selected Tribological Characteristics

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