Dynamic Stabilization in Reaming Internal Surfaces of Welded Components

Maksarov, V. V.; Vasin, S. A.; Efimov, A. E.

doi:10.3103/s1068798x2110018x

Cited by 12 publications

(9 citation statements)

References 9 publications

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“…Since the direct influence on the impact toughness anisotropy is caused by non-metallic inclusions deformed in the rolling direction, we additionally determined the content of impurities in the steel (Table 2), including sulphur and oxygen, which completely pass into oxide and sulphide inclusions [5]. The microstructure of the investigated steel revealed by pickling in 4% alcoholic nitric acid solution is shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Vibrations arising in the machining process significantly complicate the operation of technological equipment operating in an automated cycle, cause premature tool wear, machine tool, and fixture failures. Dynamic stability of the technological system and reduction of vibrations that arise in the cutting process are the key to the stability of chip formation, which is especially important in the case of automation of the technological process [1,[3][4][5][6][7]. Thus, the task of ensuring the stability of the technological system by reducing the level of auto-vibration is one of the most important in the field of blade machining, which becomes especially important in the finishing of products on automatic and numerically controlled machines [2,[8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

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Features of the manufacturing technology of a multilayer tool with an ordered texture

Leonidov

2023

E3S Web of Conf.

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The auto-oscillatory process in metal cutting is analysed in order to understand the nature of chip formation in turning and to evaluate the importance of ensuring the stability of the technological system in machining. The method of multilayer tooling with ordered texture is selected as one of the promising directions for solving this problem. Microfractographic analysis is carried out on fractures of specimens cut in transverse and longitudinal directions. The character of crack propagation at fracture by the ductile intragrain mechanism is established. The design of a holder of a penetrating cutter with inserts having a directed texture is proposed on the basis of studies of a multilayer tool with an ordered texture.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Features of the manufacturing technology of a multilayer tool with an ordered texture

Leonidov

2023

E3S Web of Conf.

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“…It is possible to solve the problem by applying ultrasonic vibrations to the cutting tool during turning operations, which should eliminate the formation of a build-up on the front surface of the tool blade and ensure the required surface roughness quality (Fig. 2) [24,25]. Fig.…”

Section: Features Of Aluminum Alloy Processingmentioning

confidence: 99%

Features of mechanical processing of aluminum alloys

Nikiforov

2023

E3S Web of Conf.

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The issue of ensuring the technological quality of aluminum alloy products is considered. The problems that arise during the processing of aluminum alloys are described in detail. The results of various studies aimed at solving the described problem are presented. The author proposes to consider the method of magnetic abrasive machining as one of the promising methods for processing complex products.

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“…Paper [21] deals with the corrosion protection of steel pipes in petrochemical production. Maksarov et al paid much attention to improving the quality of the further processing of welded products [22][23][24][25]. Paper [26] is devoted to corrosion investigations in the atmosphere.…”

Section: Introductionmentioning

confidence: 99%

“…All the above-mentioned factors can increase the metal corrosion. Currently, effective methods of quality control of welding joints [13][14][15][16][17][18][19][20][21][22][23] as well as the remote monitoring of the operational characteristics of structures have already been developed. Recently, intensive research has also been conducted aimed at the early detection of corrosion [18,19].…”

Section: Introductionmentioning

confidence: 99%

The Study of Metal Corrosion Resistance near Weld Joints When Erecting Building and Structures Composed of Precast Structures

2022

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Corrosion processes of the most common steel grades in various environments are the subject of numerous studies. At the same time, the corrosion of welded joints hidden in concrete thickness has not yet been studied. The authors set themselves the task of investigating this process. For this purpose, the corrosion resistance of several metals (grade St.3, U7 and their weld joints) was studied in standard test solutions, simulating a concrete pore liquid, containing sodium carbonates and hydrocarbonates, and sodium chlorides. Data on comparative corrosion resistance in saline media for specified materials were obtained. It was shown that the corrosion rate depends on the ease of CO2 ingress into the solution, and, to a lesser degree, on the metal microstructure. The surface character of the metal samples and the composition of corrosion products were investigated by scanning electron microscopy and an X-ray diffraction analysis. Chemical forms of surface compounds were determined. For the first time, it is clearly shown that the electrode coating flowing during welding does not always protect the weld from corrosion, as was previously believed. The corrosion rate, in this case, is just the same as at the surface of the metal plate of a similar composition. In the conclusion of this work, it is emphasized that in the case of alkaline and chloride-containing media, the protective coating falling from the electrode to the weld does not protect it sufficiently from corrosion.

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Dynamic Stabilization in Reaming Internal Surfaces of Welded Components

Cited by 12 publications

References 9 publications

Features of the manufacturing technology of a multilayer tool with an ordered texture

Features of the manufacturing technology of a multilayer tool with an ordered texture

Features of mechanical processing of aluminum alloys

The Study of Metal Corrosion Resistance near Weld Joints When Erecting Building and Structures Composed of Precast Structures

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