Ensuring Fatigue Life of Parts During Finish Turning with Cubic Boron Nitride Tools

Barandych, Kateryna; Vysloukh, Sergii; Antonyuk, V. S.

doi:10.3103/s1063457618030085

Cited by 10 publications

(7 citation statements)

References 5 publications

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“…The results of the optimization task are saved as a text file at the specified address. Thus, the created optimization method makes it possible, on the basis of experimental research and the processing of their results [2], to solve the problem of determining the optimal finish turning process cutting conditions of parts made from the materials of the structural alloyed chromium steels group, with a visual representation and preservation in a text file.…”

Section: Task Realizationmentioning

confidence: 99%

Optimization of Parts Cutting Process Parameters Working in Conditions of Cyclic Loads

Barandych,

Vysloukh,

Tymchyk

et al. 2023

IAPGOS

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The paper is devoted to questions of technological fatigue life assurance of parts working in conditions of cyclic loads by optimization their cutting conditions for finish turning process. In order to solve the task of optimizing the parts cutting conditions, the corresponding software, based on the previously created mathematical model of the finishing turning process, was developed in the C# programming language. With the purpose of technological providing the necessary fatigue life of the part, taking into account the real conditions of its operation for the maximum productivity of the finishing turning process, the methodical recommendations for determining the optimal parts cutting conditions at the phase of production technological preparation are given. An example application of the proposed solution is presented.

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Section: Task Realizationmentioning

confidence: 99%

Optimization of Parts Cutting Process Parameters Working in Conditions of Cyclic Loads

Barandych,

Vysloukh,

Tymchyk

et al. 2023

IAPGOS

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“…The cutting process is significantly influenced by contact phenomena that occur as a result of the interaction of the tool with the surface of the workpiece [5], [11]- [15]. The physical features of the machining process are determined by the friction between the workpiece material and the cutter material, the role of which is especially noticeable in the process of cutting with small cross sections of chips, which occurs during semi-finishing and finishing turning with superhard materials [7], [13], [25]- [27].…”

Section: Presentation Of the Main Materialsmentioning

confidence: 99%

“…The study of the nature and features of the wear process and the stability of the cutting tool made of composite systems "BNw -diamond" was carried out by longitudinal turning of samples of hardened steel with a hardness of HRC 61…63. It is established that turning of hardened steels is accompanied by wear of the cutter on both the rear and front surfaces, wear on the rear surface is characterized by the presence of sawtooth grooves, the direction of which coincides with the direction of the cutting speed vector, which is characteristic of wear of composite 10 tool [5], [23]- [25], [32].…”

Section: Presentation Of the Main Materialsmentioning

confidence: 99%

“…With regard to finishing technologies, it is characterized not only by the productivity of the process, but also by the need to ensure the formation in the surface layers of products of the state, which would ensure their maximum efficiency during operation [5]- [8]. The role of the tool in solving the problems of increasing production efficiency is one of the most important in terms of efficiency in mechanical engineering of particular interest are tools made of polycrystalline superhard materials (PSHM)composites based on dense modifications of boron nitride and diamond [9]- [11].…”

Section: Introductionmentioning

confidence: 99%

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Influence of diamond component based on wurtzite boron nitride on wear resistance of cutting tool

Volkogon¹,

Avramchuk²,

Fedoran³

et al. 2020

Ukr. j. mech. eng. mater. sci.

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The article is devoted to the study of the influence of the diamond component in a composite superhard material based on wurtzite boron nitride on the stability of the tool during turning of hardened steels in the mode of smooth turning and when processing intermittent surfaces. The aim of the work is to study the influence of the content of the diamond component in the composite superhard material based on wurtzite boron nitride on the stability of the tool. Based on the analysis of the main patterns of changes in the coefficient of friction depending on various factors, the evaluation of composites containing diamonds of different dispersion in comparison with other materials of this class. The results of the study of the technical level of composite polycrystalline superhard materials based on wurtzite boron nitride of different composition and determination of the efficiency of their use as a cutting tool in the machining of hardened steels are presented. The intensity of wear of composites in the cutting tool during processing of hardened steels is experimentally determined. It is established that the presence of a diamond component in the composite significantly affects the stability of the tool in the conditions of smooth turning due to heat dissipation in contact with the processed material. In the processing of hardened steels with the presence of shock loads, the phase state of the matrix component of the composite plays a decisive role. The obtained research results make it possible to determine the optimal composition and conditions for obtaining a composite material of the system “boron nitride – diamond”, which provides the most effective application of the cutting tool in practice.

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“…Technological techniques include taking into account technological heredity [49], ensuring the accuracy and quality of manufacturing parts by mechanical processing [50][51][52] for the reliable functioning of brakes during the life cycle of vehicles, lifting and drilling equipment, etc. [53].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Degree of Degradation of Brake Pad Friction Surfaces Using Image Processing

Mandziy,

Ivasenko,

Berehulyak

et al. 2024

Lubricants

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The improvement of drilling rig systems to ensure a reduction in unproductive time spent on lowering and lifting operations for replacing drilling tools and restoring the performance of drilling equipment units is an important task. At the same time, considerable attention is paid to the reliable and efficient operation of the braking systems of drilling rig winches. In the process of operation, the polymer pads periodically come into contact with the outer cylindrical surface of the metal pulley during braking, work in extreme conditions and wear out intensively, so they need periodic replacement. Tests were carried out on a modernized stand and in industrial conditions for the brakes of drilling winches. A methodology for evaluating the degradation of the brake pad friction surface during its operation is proposed. The assessment of the degradation degree is carried out based on the image of the brake pad surface using image processing techniques. Geometric transformations of the input image were performed to avoid perspective distortions caused by the concave shape of the brake pads and the spatial angle at which the image is acquired to avoid glares. The crack detection step was implemented based on the scale-space theory, followed by contour detection and skeletonization. The ratios of the area and perimeter of segmented and skeletonized cracks to the total area were chosen as integral characteristics of the degradation degree. With the help of scanning electron microscopy, the character of the destruction of the friction surface and the degradation of the polymer material was investigated. Experimental studies were performed, and the application of the proposed method is illustrated.

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Ensuring Fatigue Life of Parts During Finish Turning with Cubic Boron Nitride Tools

Cited by 10 publications

References 5 publications

Optimization of Parts Cutting Process Parameters Working in Conditions of Cyclic Loads

Optimization of Parts Cutting Process Parameters Working in Conditions of Cyclic Loads

Influence of diamond component based on wurtzite boron nitride on wear resistance of cutting tool

Evaluation of the Degree of Degradation of Brake Pad Friction Surfaces Using Image Processing

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