A study for determining the most significant parameters of the ball-burnishing process over some roughness parameters of planar surfaces carried out on CNC milling machine

Slavov, Stoyan; Dimitrov, D. M.

doi:10.1051/matecconf/201817802005

Cited by 8 publications

(6 citation statements)

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“…In order to achieve the experimental objective of the present study, the methodology of the planned factor experiments (Montgomery, 2017) is used. The study of the references (Odintsov, 1987;Shneider, 2001;Slavov & Dimitrov, 2018) leads to identifying four main influencing parameters of the process on the characteristics of the resulting RR on the surfaces processed. They are, as follows:…”

Section: Methodology Of the Experimental Studymentioning

confidence: 99%

“…With the introduction of MM with CNC control and the computer software system for automatic design (Computer Aided Design -CAD), and the computerized preparation of the manufacturing (Computer Aided Manufacturing -CAM) methods for obtaining RR through a BB process are developed, realized with the help of such equipment (Славов, 2010а, 2010bRodríguez et al, 2011). They do not need the deforming element to vibrate in order to obtain a RR of the desired type, and the required sinusoidal trajectory is achieved by mathematical generation of the tool path and its subsequent programming in a program for MM with CNC (Slavov, 2017(Slavov, , 2018. The source (Rodríguez et al, 2011) shows an example for the implementation of the BB process for finishing processing of different surfaces and types of materials, used in the Machine industry with the help of MM with CNC.…”

Section: Introductionmentioning

confidence: 99%

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Research on the influence of the five-axis ball-burnishing process regime parameters on the resulted cells properties from regularly shaped roughness

Iliev

2019

AJTUV

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< p align="justify">The current study presents the results from the experimental research conducted on the influence of the regime parameters on the process for a five-dimensional Ball Burnishing (BB) finishing process with the help of a CNC milling machine on the Regular Reliefs (RR) obtained on complex functional surfaces. The elements of the technological system, necessary for the formation of RR of type IV on the complex surfaces, are presented. A planned factorial experiment is realized, through which the significantly affecting parameters of the BB process on the size and shape of the RR cells, are determined. The results obtained are statistically confirmed by a dispersion analysis (ANOVA) carried out. Conclusions, regarding the possibilities of obtaining RRs of type IV on complex surfaces through a process of five-axis simultaneous BB, are made.</p>

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Section: Methodology Of the Experimental Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research on the influence of the five-axis ball-burnishing process regime parameters on the resulted cells properties from regularly shaped roughness

Iliev

2019

AJTUV

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“…Similar experimental investigation is described in detail in Slavov and Dimitrov (2018), Slavov et al (2020), where the results of a full-factorial experiment with four factors (i.e. the feed rate, the deforming force, the amplitude of the deforming element and the number of oscillations) are presented.…”

Section: Introductionmentioning

confidence: 92%

Experimental Research of Partial Regular Microreliefs Formed on Rotary Body Face Surfaces

et al. 2021

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The basic regularities in the influence of processing parameters on the geometrical characteristics of the partially regular microreliefs, formed on the rotary body face surface, are established. Combinations of partially regular microreliefs are formed by using a contemporary CNC milling machine, and an advanced programing method, based on previously developed mathematical models. Full factorial experimental design is carried out, which consist of three factors, varied on three levels. Regression stochastic models in coded and natural form, which give the relations between the width of the grooves and the deforming force, feed rate and the pitch of the axial grooves, are derived as a result. Response surfaces and contour plots are built in order to facilitate the results analysis. Based on the dependencies of the derived regression stochastic models, it is found that the greatest impact on the width of the grooves has the magnitude of the deforming force,followed by the feed rate. Also, it is found that the axial pitch between adjacent toolpaths has the least impact on the width of the grooves. As a result of the full-factorial experiment, the average geometric parameters of the microrelief grooves were obtained on their basis. When used, these values will provide for the required value of the relative burnishing area of the surface with regular microreliefs, and, accordingly, the specified operational properties.

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“…The natural values of i , and e were selected on the basis of the previous research of the authors [ 40 ]. Their low and high levels were set to obtain RR with different size cells.…”

Section: Experimental Researchmentioning

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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A study for determining the most significant parameters of the ball-burnishing process over some roughness parameters of planar surfaces carried out on CNC milling machine

Cited by 8 publications

References 1 publication

Research on the influence of the five-axis ball-burnishing process regime parameters on the resulted cells properties from regularly shaped roughness

Research on the influence of the five-axis ball-burnishing process regime parameters on the resulted cells properties from regularly shaped roughness

Experimental Research of Partial Regular Microreliefs Formed on Rotary Body Face Surfaces

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

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