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Journal articles on the topic 'Stamp hot deformation'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Pankratov, Dmitriy L., and Alexander V. Shaparev. "Truck Synchronizer Rings Recovery by Plastic Deformation Technology." Defect and Diffusion Forum 410 (August 17, 2021): 42–47. http://dx.doi.org/10.4028/www.scientific.net/ddf.410.42.

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A truck's gearbox friction rings restoring process by hot 3D stamping was developed and adopted for implementation. Using this recovery method in combination with subsequent synchronizer rings mechanical processing allows restoring up to 95% resource of worn parts. It was established that section of a stamp's deforming element for axisymmetrical parts restoring should be a one-way wedge with a sloping face facing the reconstructed surface. The most significant factors influencing the transmission gearbox synchronizer rings restoring process are: stamp deforming element thickness, plunging dept

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2

Mukhametzyanov, Ilnar R., Gamir F. Mukhametzyanov, Vladimir I. Astashchenko, and Gulnara F. Mukhametzyanova. "Development of technology to restore the working area of the stamp tool." Yugra State University Bulletin 19, no. 3 (2023): 166–72. http://dx.doi.org/10.18822/byusu202303166-172.

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Subject of research: technology for restoring the working area of a stamp tool, the structure and properties of the deposited layer of the restored stamp surface. Purpose of research: to develop a technology for restoring the working area of a hot deformation die insert for the formation of a gradient structure and properties of the metal over the cross section of the deposited zone. Methods and object of research: a technology for restoring the insertion of a worn hot-forming stamp on the beam of the front axle of a KAMAZ truck using two-layer electric arc surfacing with one type

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3

Berladir, K., T. Hovorun, M. Bondarenko, and S. Vorobiov. "Application of Reinforcing Thermocycling Treatment for Materials of Stamps Hot Deformation." Journal of Engineering Sciences 6, no. 2 (2019): c6—c10. http://dx.doi.org/10.21272/jes.2019.6(2).c2.

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The paper is devoted to the search for technological methods of increasing the resistance of the stamp tool for hot deformation. New non-standard combinations of cyclization schemes and parameters of thermocycling processing within the regime were developed. This is allowed the creation of managed structural states in the metal due to the grinding of grain, the creation of high density of defects, and the acceleration of diffusion processes to effectively manage the structure, increase the mechanical, operational properties and prevent the destruction of the working surfaces of the tool. New m

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4

Vorontsov, A. L., and E. O. Reshikov. "RADIAL EXTRUSION OF A PIPE BILLET WITH INTERNAL LEDGE. EXTENDED EXPERIMENTAL VERIFICATION OF THEORETICAL FORMULAS FOR EXTRUSION WITHOUT HARDENING." Spravochnik. Inzhenernyi zhurnal, no. 307 (October 2022): 44–55. http://dx.doi.org/10.14489/hb.2022.10.pp.044-055.

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A continuation of the experimental verification of theoretical results, begun in the previous article, is outlined. The design and characteristics of the new experimental stamp are described in detail. Studies of extrusion of a non-hardening material – lead C1, simulating hot deformation, were carried out. The high accuracy of the obtained calculation formulas is confirmed.

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5

Kuleshkov, Yuriy, Timofey Rudenko, Mikhail Krasota, Ruslan Osin, and Vasyl Reva. "Restoration of Piston Pins by Hot Plastic Deformation." Central Ukrainian Scientific Bulletin. Technical Sciences, no. 4(35) (2021): 54–62. http://dx.doi.org/10.32515/2664-262x.2021.4(35).54-62.

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The aim of the study is to create a theoretical basis that allows to calculate the forces of hot plastic deformation of the piston pin. One of the promising methods of restoring the piston fingers of the connecting rod - piston group of internal combustion engines is the method of hot plastic deformation. The process of restoring the piston fingers by hot plastic deformation can increase their strength and, in particular, fatigue strength. When developing the technological process of restoration of piston fingers using the method of hot plastic deformation by distributing it with a punch in th

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6

Minkov, K. A., A. N. Minkov, and A. A. Khlybov. "CHOICE OF TEMPERATURE AND TIME CONDITIONS OF HEATING FOR THE COMBINED PROCESS OF BORATING AND VOLUME TRAINING OF LARGE STAMPS OF 5KhNM STEEL." Izvestiya. Ferrous Metallurgy 62, no. 9 (2019): 681–85. http://dx.doi.org/10.17073/0368-0797-2019-9-681-685.

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The stamps for hot deformation are widely adopted in industry. In use they are affected by high temperatures, tension (close to a fluidity limit) and variable thermal loadings. High-hardenability tool steels with high mechanical characteristics are used for stamps production. In this article, the possibility of use of 5KhNM steel for this goal is considered. One of technological operations at production of stamps is training in oil. It is rational to apply volume and superficial hardening, in particular chemical heat treatment, to improve operational characteristics of stamps, including wear r

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7

Dragobetskyi, Volodymyr, Oleksandr Kaliuzhnyi, Volodymyr Kaliuzhnyi, and Stanislav Sytnyk. "Improving the shape and dimensional accuracy of hollow semi-finished products during hot reverse extrusion from square workpieces." Mechanics and Advanced Technologies 8, no. 3(102) (2024): 256–64. http://dx.doi.org/10.20535/2521-1943.2024.8.3(102).297388.

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Stamping of round hollow semi-finished products by hot reverse extrusion from round and square workpieces is the first stamping step in the manufacture of hollow products for special purposes. These products require certain mechanical properties along the wall height and in the bottom part, which can be achieved by working out the metal structure by plastic deformation. The bottom part is worked out by reverse extrusion. The wall properties are obtained in the following stages of drawing the semi-finished product with thinning after extrusion. The use of square workpieces results in more inten

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8

Kolotyrin, Konstantin P., Sergey A. Bogatyrev, Yuri Yu Kostyukhin, Diana Yu Savon, and Alexey I. Shinkevich. "Justification of the Application of Resource-Saving Technology for the Restoration of Metal-Intensive Rear Semi-Axles of Trucks Using Hot Plastic Deformation." Sustainability 14, no. 1 (2021): 16. http://dx.doi.org/10.3390/su14010016.

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The article is devoted to the substantiation of technological foundations for the restoration of extremely worn-out, metal-consuming, and resource-consuming parts, in a method consisting of applying a compensating metal wear with subsequent plastic deformation. Currently, there are no technologies for their restoration in a repair facility that guarantee the resilience of the factory product. The proposed technological process of repair consists of butt welding onto the end of the spline semi-axle shank, compensating for the wear of the metal, the volume of which takes into account the losses

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9

Fujii, Tatsuya, Atsuki Tsuji, and Junji Murata. "Solid-State Electrochemical Oxide Pattern Formation on Au Surface Utilizing Polyelectrolyete Membrane Stamps." ECS Meeting Abstracts MA2024-02, no. 67 (2024): 4641. https://doi.org/10.1149/ma2024-02674641mtgabs.

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Nanoscale patterned gold (Au) surfaces are promising for a wide range of applications such as bio/chemical sensors and high-performance electrodes. However, pattern formation by conventional methods, which typically involves the use of resist, is complex, cost-consuming, and poses a high environmental burden. In this study, we report an investigation into the interfacial chemical reaction occurring between the polymer electrolyte membrane (PEM) and Au surfaces and its application for microscale pattern formation. Introducing a PEM instead of a liquid electrolyte can realize solid-state electro

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10

Sydorchuk, Oleh. "INFLUENCE OF HEAT TREATMENT ON DIE STEEL 4Kh4N5М4F2 AND ESTABLISHMENT OF ITS PHYSICAL AND MECHANICAL PROPERTIES". Bulletin of the National Technical University «KhPI» Series: New solutions in modern technologies, № 1(7) (23 квітня 2021): 34–38. http://dx.doi.org/10.20998/2413-4295.2021.01.05.

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The results of researches after heat treatment (hardening and tempering) of alloyed structural steel of grade 4Kh4N5М4F2 in cast and forged state are given. It is recommended to carry out partial recrystallization (incomplete annealing) of the experimental steel (4Kh4N5М4F2) at a temperature of 750±20 °С. It is recommended to carry out thermo-deformation treatment (forging at a temperature of 1170±20 °C), which doubled the grain yield of hardened steel and increased the toughness five times after tempering. The optimal temperature mode of hardening (1095±5 °С) of cast and forged steel, the har

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11

Salmanov, M. N., V. N. Shabalin, N. S. Salmanov, and A. Akononov. "New high‐vanadium surfacing material for hot deformation stamps and pressing dies." Welding International 16, no. 3 (2002): 228–30. http://dx.doi.org/10.1080/09507110209549522.

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12

Krylova, S. E., E. V. Romashkov, and G. P. Pilipchuk. "SPECIAL ASPECTS OF HEAT TREATMENT OF STEELS FOR THE PRODUCTION OF HOT DEFORMATION STAMPS." Vektor nauki Tol'yattinskogo gosudarstvennogo universiteta, no. 4 (2017): 52–58. http://dx.doi.org/10.18323/2073-5073-2017-4-52-58.

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13

Федосеев, В. И., М. В. Молод, and В. И. Максименков. "STUDY OF THE TECHNOLOGY OF MANUFACTURING NOISE REDUCTION HONEYCOMB PANELS FOR THE HOT PART OF A TURBOJET ENGINE." ВЕСТНИК ВОРОНЕЖСКОГО ГОСУДАРСТВЕННОГО ТЕХНИЧЕСКОГО УНИВЕРСИТЕТА, no. 2 (May 5, 2023): 124–28. http://dx.doi.org/10.36622/vstu.2023.19.2.018.

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рассмотрены вопросы изготовления слоистых панелей, применяемых для снижения шума турбореактивного двигателя. Приведены однослойные и двухслойные конструкции, применяемые в кожухах шумоглушения двигателей. Разработан технологический процесс изготовления слоистых панелей, определяющий этапы получения плоской панели и панели заданной криволинейной формы. Процесс изготовления осуществляется с нагревом в вакуумных печах. Осуществляя формообразование слоистых панелей, выявлены браковочные признаки: пружинение панели, разрыв верхнего несущего слоя, потеря устойчивости внутреннего слоя панели, смятие

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14

"Evaluation of wear resistance of stamping tool during hot die deformation." Vestnik Mashinostroeniya, October 2024, 876–80. https://doi.org/10.36652/0042-4633-2024-103-10-876-880.

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The wear resistance of a stamping tool for hot die deformation is investigated by two-stage mathematical modeling. The stresses in the stamped forging are determined by the temperature curve of hardening of the deformed material. The obtained stresses are used to set the load on the surface of the stamp engraving and to determine the magnitude and distribution of stresses in the bulk of the stamp. Keywords hot die forging, complex forging with pips, contact surface, stamp engraving, workpiece, mathematical modeling, temperature curve of material hardening lumi1950@mail.ru

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15

Kaliuzhnyi, Volodymyr, Leyla Aliieva, Oleksandr Yarmolenko, and Stanislav Sytnyk. "Hot extrusion of high carbon steel cone hollow products." Mechanics and Advanced Technologies 6, no. 3 (2022). http://dx.doi.org/10.20535/2521-1943.2022.6.3.269897.

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The work is devoted to researching a new method of hot direct-reverse extrusion of hollow conical products from high-carbon steel and determinated parameters for technological design. The considered method makes it possible to obtain in one step hollow products with different wall thickness in height, while the wall thickness in the upper part of the product can be greater than the thickness in the bottom part. The dimensions of the initial workpiece are determined by modeling using the finite element method, which ensures the simultaneous flow of metal in the forward and reverse directions du

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16

Cross, Graham L. W., Richard M. Langford, Barry S. O'Connell, and John B. Pethica. "The Mechanics of Nanoimprint Forming." MRS Proceedings 841 (2004). http://dx.doi.org/10.1557/proc-841-r1.6.

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ABSTRACTNanoimprint and a number of other related techniques are a collection of surface patterning technologies that involve direct contact of a master template with the target surface. As such, they are governed by the laws of contacting bodies, and the mechanics involved can readily be investigated by existing indentation methods or close variants thereof. Among the many demonstrated applications of nanoimprint, lithographic resist processing has generated considerable interest due to its combination of high resolution with rapid throughput over wide areas. Pattern transfer can be achieved

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17

sprotocols. "Preparation of tools for lithographically controlled wetting and soft lithography." January 8, 2015. https://doi.org/10.5281/zenodo.13838.

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Authors: Massmiliano Cavallini, Denis Gentili, Pierpaolo Greco, Francesco Valle & Fabio Biscarini ### Abstract This protocol provides the instructions for designing and fabricating stamping tools with features ranging from nanometer to micrometer scale, including the fabrication using commercial tools such as compact disks or digital video disks. In particular the reported procedures are oriented towards the tools fabrication for lithographically controlled wetting and soft lithography. Because the versatility of these methods that has almost no restrictions concerning the materials used f

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