Methods of cutting for workpieces of hardmetal and cBN-based polycrystalline superhard material

Salenko, Alexandr; Shchetinin, V. T.; Fedotiev, A. N.; Dudyuk, V. A.; Klimenko, S. A.; Borimsky, A. I.; Sorochenko, T. A.

doi:10.3103/s1063457615040073

Cited by 7 publications

(6 citation statements)

References 1 publication

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“…Paper [5] contains comparative results of the research of productivity of different working methods. In the present paper, experiments with workpieces made of HA and PSHM are repeated, but attention is focused on the indices of the quality of the worked surfaces, roughness and accuracy of relative position, and also deviations of their values from theoretically possible ones.…”

Section: Discussion Of the Obtained Resultsmentioning

confidence: 99%

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Cutting Superhard Materials by Jet Methods (on Functional Approach)

Salenko¹,

Shchetynin²,

Gabuzian³

et al. 2020

Recent Advancements in the Metallurgical Engineering and Electrodeposition

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Dimensional processing of products made from hard alloys and superhard materials is of a certain interest for contemporary high-technology production, as it enables creation of half-finished or final products of various geometric shapes from workpieces obtained by sintering. In this case conventional methods, first of all abrasive processing and electroerosion cutting, find limited application, which is caused by special features of the structural condition and physical and mechanical properties of the materials of the processed workpieces. The functional approach can be used in working of composite workpieces from laminated superhard materials. The performed research with the use of hydro-abrasive cutting (HAC), laser cutting (LC), laser cutting with water cooling (LCC), and water jet-guided laser (WJGL) has enabled studying of the intensity of destruction area introduction into the worked piece and finding out the functional features of a particular process that are caused by the working conditions. It has been shown that the hypothesis of quasistationary rate of destruction is unacceptable for such materials, which is caused by the structure and high hardness of the material. It has also been determined that when deepening increases, the rate of jet introduction has a pronounced tendency toward reduction.

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Section: Discussion Of the Obtained Resultsmentioning

confidence: 99%

“…In particular, in [1,5] it is shown that during working of carbides (HA), the dimple depth h l increases due to manifestation of mechanisms of micro-cutting and deformation destruction, that is, the process is described by the expression…”

Section: Element Provisionmentioning

confidence: 99%

Cutting Superhard Materials by Jet Methods (on Functional Approach)

Salenko¹,

Shchetynin²,

Gabuzian³

et al. 2020

Recent Advancements in the Metallurgical Engineering and Electrodeposition

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“…It is established that the increase in the intensity of heat dissipation leads to a greater drop in temperature, and, consequently, to a decrease in the size of the area covered by thermal exposure. Thus, the jet-laser destruction of the material will occur in the local (not more than 0.1-0.15 mm) zone, which is much less than the zone of both hydrodynamic and thermal effects [17].…”

Section: Task 3 Cuttingmentioning

confidence: 95%

“…In the first part of our work, we formulated the main generalizations based on the works [1][2][3][4][5][6][7][8][9], which resulted in generalizations reflected in [8,12,14,16,17]. The practical aspect of the application of such approaches is no less interesting, since it allows one to transform theoretical provisions into scientific and engineering techniques that allow one to effectively solve many problems of modern production.…”

Section: Introductionmentioning

confidence: 99%

Using the functional approach in the development of hybrid processes in engineering: practical aspects

Salenko¹,

Klymenko²,

Orel³

et al. 2022

Mech. Adv. Technol.

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The principles of creating hybrid processing processes based on the functional approach are given. The base of this approach, its theoretical aspects are given in the first part of the article. The practical application of the approaches is reflected in specific scientific and technical problems in the problem of high-quality cleaning of the surface from various adhesive coatings, the use of methods for obtaining holes and perforations in workpieces from metals and composite materials, as well as in the problem of contour cutting of plates from superhard sintered materials. It is shown that the use of a functionally oriented approach makes it possible to identify such combinations of force and energy effects that make it possible to process even those materials that are considered difficult to process or not machinable. Samples of cleaned surfaces, cuts of superhard materials, holes in honeycomb systems of aerospace engineering are presented.

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“…The specified accuracy and quality of the working surfaces of the parts is achieved using technological methods of mechanical processing [ 34 , 35 , 36 ], taking into account the technological heredity [ 37 ] and the rational selection of metalworking machines [ 38 ], since the occurrence of errors in the processing of parts and the performance of assembly processes leads to growth stresses in components with coatings [ 39 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Wear Characterization of the Fe-Mo-B-C—Based Hardfacing Alloys Deposited by Flux-Cored Arc Welding

et al. 2022

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An analysis of common reinforcement methods of machine parts and theoretical bases for the selection of their chemical composition were carried out. Prospects for using flux-cored arc welding (FCAW) to restore and increase the wear resistance of machine parts in industries such as metallurgy, agricultural, wood processing, and oil industry were presented. It is noted that conventional series electrodes made of tungsten carbide are expensive, which limits their widespread use in some industries. The scope of this work includes the development of the chemical composition of tungsten-free hardfacing alloys based on the Fe-Mo-B-C system and hardfacing technology and the investigation of the microstructure and the mechanical properties of the developed hardfacing alloys. The composition of the hardfacing alloys was developed by extending the Fe-Mo-B-C system with Ti and Mn. The determination of wear resistance under abrasion and impact-abrasion wear test conditions and the hardness measurement by means of indentation and SEM analysis of the microstructures was completed. The results obtained show that the use of pure metal powders as starting components for electrodes based on the Fe-Mo-B-C system leads to the formation of a wear-resistant phase Fe(Mo,B)2 during FCAW. The addition of Ti and Mn results in a significant increase in abrasion and impact-abrasion wear resistance by 1.2 and 1.3 times, respectively.

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Methods of cutting for workpieces of hardmetal and cBN-based polycrystalline superhard material

Cited by 7 publications

References 1 publication

Cutting Superhard Materials by Jet Methods (on Functional Approach)

Cutting Superhard Materials by Jet Methods (on Functional Approach)

Using the functional approach in the development of hybrid processes in engineering: practical aspects

Microstructure and Wear Characterization of the Fe-Mo-B-C—Based Hardfacing Alloys Deposited by Flux-Cored Arc Welding

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