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Journal articles on the topic 'Worm milling'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Zhong, Lei, Qing Zhen Bi, Yu Han Wang, and Han Ding. "Five-Axis Flank Milling Method of Plane Double Enveloping Hourglass Worm." Advanced Materials Research 314-316 (August 2011): 1523–32. http://dx.doi.org/10.4028/www.scientific.net/amr.314-316.1523.

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A high-precision and efficient machining method of plane double enveloping hourglass worm is proposed. The worm tooth surface is first created and analyzed based on meshing theory. The analysis reveals that the worm tooth surface is a developable ruled surface. This provides the ability of precise flank milling of the worm tooth surface. The meshing lines on the worm tooth surface indicate the contact lines of the worm tooth and the cutter. The five-axis tool path of flank milling is then generated according to the meshing lines. The flank milling has obviously advantages in machining efficien

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2

Dong, Li Yang, Ping Yi Liu, Wen Jun Wei, Hai Tao Li, and Xue Zhu Dong. "A Milling Method of an Enveloping Toroidal Worm on a CNC Turning Center." Advanced Materials Research 482-484 (February 2012): 2188–91. http://dx.doi.org/10.4028/www.scientific.net/amr.482-484.2188.

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To solve the problem of allowance equalization in the grinding process of an enveloping toroidal worm after turning by using the hindley worm turning method, a milling method was presented based on discretization of the spiral surfaces rather than the generating principle. The method is used on a CNC tuning center with a cylindrical end milling cutter rather than on a specialized machine tool. The material of the spiral grooves of the worm was removed layer by layer both in the tangential and the radial directions of the torus of the worm from the tooth top circle to the tooth root circle. The

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3

Pozdirca, Alexandru. "ZPA Worms – Definition and Technology." Applied Mechanics and Materials 658 (October 2014): 129–34. http://dx.doi.org/10.4028/www.scientific.net/amm.658.129.

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The article presents the definition of a new worm type called ZPA (Pseudo-Archimedes’ Worm), generated with standard cylindrical milling tools on NC lathe. First are showed the enveloping calculus for determining the contact line between the tool and the flank of the worm – considering cylindrical generating surfaces. Knowing the contact line, the axial profile can be determined and implicit the flank of worm. Applying some controlled corrections, this worm type can become a standard worm (ZA – for example). This process is assisted by CAD software, developed by the author. The second part app

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4

Сандлер, Александр, Aleksandr Sandler, Сергей Лагутин, and Sergey Lagutin. "Function-specific technology of hobbing cutter relieving for wheel hobbing gears with Novikov mesh." Science intensive technologies in mechanical engineering 2019, no. 9 (2019): 33–43. http://dx.doi.org/10.30987/article_5d2df088619b13.24122927.

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A productive worm of a hob for cutting Novikov gearing with two mash lines has a profile variable not only by a curvature radius, but also by its sign. A procedure is developed for relieving side surfaces of teeth of these milling cutters by a disk tool (abrasive disk) function-specific to ensure back angles of a milling cutter and realization quality of an initial contour of a gear with the production worm of a milling cutter.

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Artamonov, E. V., V. V. Kireev, and V. A. Zyryanov. "Improving Gear Milling Efficiency by Creating Prefabricated Cutters with Replaceable Cutting Carbide Plates." Proceedings of the Southwest State University 24, no. 1 (2020): 35–51. http://dx.doi.org/10.21869/2223-1560-2020-24-1-35-51.

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Today, when machining domestic-made worm milling cutter according to GOST 9324-80, a problem arises in their durability at the roughing stage. Russian tool companies engaged in the manufacture of metal cutting tools do not currently offer prefabricated worm tools with cutting elements made of hard alloy tools for machining large-modular gears.Purpose of research. Creation of prefabricated structures for machine-building enterprises with replaceable cutting carbide plates (RCHAP). Due to this, the productivity of equipment already available at the enterprise is increased several times, the econ

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6

KANE, Mark M., Valeriy K. SHELEG, and Marina A. KRAVCHUK. "MODELING AND OPTIMIZATION OF THE PROCESS OF GEAR MILLING OF CYLINDRICAL GEARS WITH WORM MILLING CUTTERS." Mechanics of Machines, Mechanisms and Materials 4, no. 53 (2020): 19–27. http://dx.doi.org/10.46864/1995-0470-2020-4-53-19-27.

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The paper considers influence issues of modes of milling cylindrical gears by hobbing cutters on the parameters of surface quality of the treated teeth, selection of milling mode, relevance of the performed research, possibility of using its results for the design of technological processes of manufacturing cylindrical gears, quality control of teeth surfaces both when cutting teeth and in finished gears. The article gives a method, conditions and main results of experimental study of the influence of gear milling modes by a worm milling cutter (feed S, mm/min; cutting speed V, m/min) of cylin

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Kawasaki, Kazumasa, and Isamu Tsuji. "Manufacturing Method for Large Cylindrical Worm Gear Set of ISO Type I on Universal CNC Machine Tools." Journal of Manufacturing and Materials Processing 7, no. 2 (2023): 53. http://dx.doi.org/10.3390/jmmp7020053.

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Large cylindrical worm gear set of ISO type I are manufactured using endmill tools on universal CNC machine tools. This manufacturing method requires neither special gear-generating machines nor special tools. The tooth flank forms of ISO type I cylindrical worm gears are involute helicoids as a standard. The targeted theoretical tooth flanks of the worm and the mating worm wheel are determined based on a tooth contact analysis (TCA) of such worm gear set. The cutting conditions of the worm are determined after the offset distance between the worm axis, and the central axis of the endmill tool

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8

Yu, Ying Liang, and Zai Dan Geng. "The Study on Application of Worm’s Numerical Control Machining." Key Engineering Materials 455 (December 2010): 594–98. http://dx.doi.org/10.4028/www.scientific.net/kem.455.594.

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One of the significant features of CNC technological superiority is in the practical applications, according to the necessary movement of processed parts required, we can use generating method to transform CNC machine tools and receive the desired results. This article discussed under the premise that lack of special equipment, transforming ordinary horizontal CNC milling to machine worm gear. The advantage of this numerical transformation approach is using the processing functions of thread and tapered thread instruction, skillfully translating into control of the CNC machining worm, expandin

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9

Loktev, D. A. "Modern worm milling cutters - design, tool materials and wear-resistant coatings." Izvestiya MGTU MAMI 8, no. 1-2 (2014): 140–52. http://dx.doi.org/10.17816/2074-0530-67820.

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The article considers modern worm milling cutters features - design characteristics, used materials and wear-resistant coatings. The influence of different structural parameters on the performance and durability of cutters was valued.

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10

Shalyzhyn, K. A., and A. A. Zholobov. "Forecasting of slit milling accuracy by the worm mill." Вестник Белорусско-Российского университета, no. 1 (2008): 87–96. http://dx.doi.org/10.53078/20778481_2008_1_87.

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11

Chen, En Ping, Shao Hui Li, Feng He Wu, and Chong Min Jiang. "Structure Design of Biaxial Rotary Milling Head with High-Torque, High-Precision and Mechanical Spindle." Key Engineering Materials 621 (August 2014): 337–45. http://dx.doi.org/10.4028/www.scientific.net/kem.621.337.

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As a key component of heavy five-axis linkage CNC machine tools, the existing mechanical biaxial rotary milling heads are usually driven by worm gear, timing belt, or multi-stage gears. Worm gear is inefficiency to transmit motion, hard to maintain the accuracy and difficult to eliminate all clearance; Timing belt can be seriously worn and cannot maintain good accuracy; and multi-stage gears transmission has defects such as long chain, low transmission stiffness. This paper aims at designing a biaxial rotary milling head with large output torque of 3000Nm, high precision and high rigidity. So

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12

Kalashnikov, A. S., Y. A. Morgunov, P. A. Kalashnikov, and T. V. Kotkina. "Development of flow forming cutting of cylindrical wheels." Izvestiya MGTU MAMI 8, no. 2-2 (2014): 43–48. http://dx.doi.org/10.17816/2074-0530-67652.

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The article considers conditions of worm milling cutters engagement with the profile of the teeth of the cylindrical wheel when involute. The construction of modular and integral worm cutters is described. Cutting conditions are analyzed: cutting speed and axial flow.

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13

Milsimerová, Aneta. "The Solution Design of Hobbing Worm Milling Cutters Face Teeth Undercut." Materials Science Forum 919 (April 2018): 59–67. http://dx.doi.org/10.4028/www.scientific.net/msf.919.59.

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Face teeth grinding of special tools, as hobing worm milling cutters are, is the shape and cinematically complex operation with the respect to achieving the necessary accuracy and resultant shape geometry. The grinding wheel shape, it ́s size and the control helix angle of hobing worm are the primary factors which are compelling the ground groove accuracy during the face teeth sharpening process. Inappropriately selected combination of these parameters causes undercut of this surface and the negative impact on required accuracy. The main aim of the solution is to find a variable and to create

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14

Gołębski, Rafał, and Piotr Boral. "Globoid surface shaped with turning and envelope method." MATEC Web of Conferences 254 (2019): 01008. http://dx.doi.org/10.1051/matecconf/201925401008.

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In industrial practice, cylindrical worm gears are most often used due to their feasibility. In the literature, much attention has been paid to determining the helical surface of worms of such transmissions. Globoidal worm gearboxes are much less frequently used due to technological difficulties. Come on, the globoidal worm ensures simultaneous cooperation of a larger number of teeth and the location of the teeth contact line is more favorable. Therefore, the following is an analytical method for the description of a globoid surface by turning and by a finger milling method.

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15

Lee, MinHwan, DongBae Kang, SeongMin Son, and JungHwan Ahn. "Investigation of cutting characteristics for worm machining on automatic lathe — Comparison of planetary milling and side milling." Journal of Mechanical Science and Technology 22, no. 12 (2008): 2454–63. http://dx.doi.org/10.1007/s12206-008-0713-1.

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16

Sendova-Franks, Ana B., Nigel R. Franks, and Alan Worley. "Plant–animal worms round themselves up in circular mills on the beach." Royal Society Open Science 5, no. 7 (2018): 180665. http://dx.doi.org/10.1098/rsos.180665.

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Collective motion is a fascinating and intensely studied manifestation of collective behaviour. Circular milling is an impressive example. It occurs in fishes, processionary caterpillars and army ants, among others. Its adaptive significance, however, is not yet well understood. Recently, we demonstrated experimentally circular milling in the marine plant–animal worm Symsagittifera roscoffensis . We hypothesized that its function is to gather the worms and facilitate the dense films they form on the beach to promote the photosynthesis of their symbiotic algae. Here, we report for the first tim

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17

Kuts, Vadim, and Julia Malneva. "Calculation of the producing surfaces of milling cutters for processing gears of eccentric-cycloidal engagement." E3S Web of Conferences 531 (2024): 01004. http://dx.doi.org/10.1051/e3sconf/202453101004.

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The paper considers a new method for processing curved gears of eccentric-cycloidal engagement with a curved profile using a special tool. The surfaces of wheels of eccentric-cycloidal engagement with a curved profile for small and large wheels are simulated. The scheme of forming a small wheel of eccentric-cycloidal engagement using a shaped milling cutter with a constructive radial feed is shown. The producing surface of the milling cutter is obtained, which allows to fulfill all the conditions of shaping when implementing the proposed scheme for shaping a small wheel of eccentric-cycloidal

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18

Li, Yupeng, Jie Yang, Run Gu, Zhijiang Chen, and Chunming Xia. "Mathematical Modeling and Generating Method of Hourglass Worm Gear Hob’s Rake Face Based on a Rotating Paraboloid Surface." Machines 12, no. 11 (2024): 770. http://dx.doi.org/10.3390/machines12110770.

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The rake angles on both sides of the cutting edges of the hourglass worm gear hob significantly influence its cutting performance, which, in turn, plays a decisive role in the surface quality of the machined worm wheel. To balance the rake angles along the tooth height direction of each hob tooth and enhance the overall cutting performance of the hob, this paper proposes a method that utilizes a rotating paraboloid surface to generate the helical rake face of the hourglass worm gear hob. First, the conjugate condition equations for the rake face generated by the rotating paraboloid surface are

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19

Ye, Lin, He Ling, Zhengmao Xu, and Jinbo Zhou. "UG secondary development of path generation of straight profile toroidal worm finishing tool." Journal of Physics: Conference Series 2819, no. 1 (2024): 012065. http://dx.doi.org/10.1088/1742-6596/2819/1/012065.

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Abstract Due to the complexity of the right and left tooth surfaces of the straight profile toroidal worm, it is difficult in 3D modeling and NC programming. Based on the equal residual height algorithm, this paper deduces the calculation formula of the cutter contact and cutter point of the tooth surface of the straight profile toroidal worm by using the round nose milling cutter, calculates the cutter point coordinates and rotation angles of each point of the tooth surface of the straight profile toroidal worm through the UG secondary development interface and Visual Studio software, and gen

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20

Wu, Haibing, Zheng Zhang, and Quanping Sun. "High-efficiency technique for five-axis side milling of niemann worm wheels." Journal of Mechanical Science and Technology 34, no. 6 (2020): 2515–24. http://dx.doi.org/10.1007/s12206-020-0527-3.

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21

Liu, Luoqiang, Liang Zhang, Lingling Zhu, Xing Zhang, Zexu Gao та Hongxia Li. "Effect of milling treatment and additives on the morphology evolution of α-alumina from a commercial boehmite precursor". Zeitschrift für Naturforschung B 76, № 2 (2021): 119–26. http://dx.doi.org/10.1515/znb-2020-0194.

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Abstract Because calcined alpha alumina (α-Al2O3) inherits the morphology characteristic of milled precursors, it is expected that the α-Al2O3 morphology could be improved by controlling the precursor morphology through the use of different milling processes. The microstructure evolution of the boehmite precursor under different milling treatments (planetary ball milling [PBM] and high-energy ball milling [HEBM]) and its influence on the microstructure of as-synthesized α-Al2O3 were investigated. The experimental results indicate that HEBM has a stronger modification effect in crystallinity, p

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22

Kamchatna-Stepanova, Kateryna, and Oleksandr Klochko. "MODERN METHODS OF GEAR MILLING OF HARDENED LARGE-MODULE GEARS." Scientific Journal of Polonia University 43, no. 6 (2021): 312–23. http://dx.doi.org/10.23856/4340.

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The latest developments of modern methods of high-speed gear milling of large-module cylindrical gears, both for preliminary grinding of teeth and for final blade processing of gears, are considered. For high-speed blade gear processing, promising designs of worm carbide cutters have been developed, manufactured and implemented. The technological regulations of blade gear processing for the operation of each of the design solutions of worm carbide cutters have been developed. The design of a special double-body worm cutter for double-sided cutting has been developed. It is shown that the carbi

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23

ZHARKEVICH, Olga, Alla ZHUKOVA, Oxana NURZHANOVA, Medgat MUSSAYEV, and Vladislav LAPKIN. "Development of the Design of the Prefabricated Worm Milling Cutter for Cutting Splines." Trudy Universiteta, no. 3 (2022): 11–16. http://dx.doi.org/10.52209/1609-1825_2022_3_11.

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24

Grycai, I. E., V. I. Topchii, and I. G. Svidrak. "Modeling of the worm cutter in the process of cutting the gears." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 22, no. 93 (2020): 39–44. http://dx.doi.org/10.32718/nvlvet-f9307.

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This work offers a new approach to graphical modeling of worm cutter parameters, based on analyses and synthesis of simple kinematic movements, causing its cutting elements a single move and displacement when placing metal into a hollow between spikes of the gear, which is being cut. It is one of the most difficult cutting and shaping processes, combining four kinematic movements – rotation of the cutters, their axial feed, rotation of the billet and a constructive move – displacement of cutting elements, located on the principle worm helix along the cutter axis. The modeling difficulty is tha

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25

Halchuk, Tetiana, Oleksandr Povstyanoy, Michal Bembenek, Bohdan Valetskyi, Roman Polinkevych, and Bohdan Smetjukh. "An Impact of Technological Factors on the Kinematic Accuracy of Cylindrical Gear Wheels during Machining." Journal of Engineering Sciences 12, no. 1 (2025): B11—B18. https://doi.org/10.21272/jes.2025.12(1).b2.

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The article shows the impact of technological factors, such as cutting modes, to ensure the kinematic accuracy of gears, in particular, the minimum accumulated pitch error. It analyzes the means of controlling gears’ accuracy in manufacturing parts of a given quality. A theoretical study of the impact of the geometry and accuracy of the technological system’s elements and the gear milling process with a worm cutter on the kinematic accuracy of cylindrical gears was carried out. The impact of the technological modes during gear milling on its accuracy indicators was studied experimentally. As a

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26

Борискин, Олег, Oleg Boriskin, Николай Стаханов, Nikolay Stakhanov, Ирина Астапова, and Irina Astapova. "Methods for accuracy increase in involute hob cutters with hard-alloy plates." Science intensive technologies in mechanical engineering 2019, no. 4 (2019): 3–6. http://dx.doi.org/10.30987/article_5c90a59586f5d2.83422841.

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The paper reports the measures allowing the increase of worm tool accuracy and efficiency of its use. Basic reasons of arising errors in involute hob cutters are revealed, techniques and methods allowing their minimization are developed. The analysis of geometrical accuracy of such milling cutters is carried out. There is offered a design of a hob cutter allowing the reduction of critical hard alloy use. In view of the fact that geometrical parameter values specified by a designer are not held during gear milling there was carried out a kinematic analysis which has shown that the geometrical p

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27

Yousef, Samy, T. A. Osman, M. Khattab, Ahmed A. Bahr, and Ahmed M. Youssef. "A New Design of the Universal Test Rig to Measure the Wear Characterizations of Polymer Acetal Gears (Spur, Helical, Bevel, and Worm)." Advances in Tribology 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/926918.

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This work aims to study the wear characterization of common types of acetal polymer gears (spur, helical, bevel, and worm) using a new TS universal test rig, in order to obtain reliable results and as a reference when compared with acetal nanocomposite gears later. The TS universal test rig consists of three different units that are connected by a main driver shaft and a pair of constantly meshing metal spur gears, which transfer power to the bevel and worm test units. The first unit is used to test the bevel gears, the second unit is used to test the spur and helical gears, and the third unit

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28

Zhao, Pengbing, Jin Huang, and Yaoyao Shi. "A formulation of tooth deformation and its error compensation for worm gear transmission mechanisms." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 231, no. 8 (2016): 1518–39. http://dx.doi.org/10.1177/0954406216672498.

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Milling head and rotary table are the key components in five-axis CNC machine tools. However, tracking and positioning precision of these rotary axes based on worm gear mechanisms are affected by the backlash, friction, elastic deformation, and other nonlinearities. Therefore, finding out a simple and universal principle to predict the tooth deformation in an initial design is quite significant. A novel deformation calculation and compensation method with finite element analysis and circular plate theory is proposed for the worm gear transmissions. When the relationship (form factor) between t

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29

Lytvyniak, Yaroslav, and Igor Yurchyshyn. "Simulation of globoid worm gear cutting by continuous forming method with disk milling cutters." Avtomatizacìâ virobničih procesìv u mašinobuduvannì ta priladobuduvannì 53 (2019): 23–35. http://dx.doi.org/10.23939/istcipa2019.53.023.

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30

Ahn, J. H., D. B. Kang, M. H. Lee, H. Y. Kim, S. H. Kim, and K. K. Cho. "Investigation of Cutting Characteristics in Side-milling a Multi-thread Worm Shaft on Automatic Lathe." CIRP Annals 55, no. 1 (2006): 63–66. http://dx.doi.org/10.1016/s0007-8506(07)60367-9.

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31

Куц, В. В., and Ю. А. Мальнева. "MODELING OF THE PRODUCING SURFACES OF MILLING CUTTERS FOR HIGH-PERFORMANCE MACHINING OF CURVED GEARS ECCENTRIC-CYCLOIDAL ENGAGEMENT." ВЕСТНИК ВОРОНЕЖСКОГО ГОСУДАРСТВЕННОГО ТЕХНИЧЕСКОГО УНИВЕРСИТЕТА 20, no. 2 (2024): 193–98. http://dx.doi.org/10.36622/1729-6501.2024.20.2.029.

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рассмотрен принципиально новый способ обработки криволинейных зубчатых колес эксцентриково-циклоидального зацепления с криволинейным профилем с применением специального инструмента. Выполнено моделирование поверхностей колёс эксцентриково-циклоидального зацепления с криволинейным профилем для малого и большого колеса. Показана схема формообразования малого колеса эксцентриково-циклоидального зацепления с применением фасонной фрезы с конструктивной радиальной подачей. Получена производящая поверхность фрезы, позволяющая выполнить все условия формообразования при реализации предложенной схемы фо

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32

Yang, Jie, Saixuan Chen, Guohua Cui, and Zhenshan Zhang. "Mathematical modeling and forming method of rake face of toroidal worm gear hob based on conical production surface." Advances in Mechanical Engineering 14, no. 11 (2022): 168781322211312. http://dx.doi.org/10.1177/16878132221131298.

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In order to improve the cutting performance of toroidal worm gear hob and the tooth surface accuracy of hobbing worm gear, to control the absolute value of the side rake angle of each cutter tooth to be smaller and more balanced on the left and right sides, a method of developing the rake face of toroidal worm gear hob with spiral groove by using conical production surface is proposed. According to the theory of gear meshing rationality, the mathematical model of the rake face is established. The analysis and calculation example results show that the absolute value of the rake angle on both si

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33

Safarov, Damir, Aleksey Kondrashov, and Ayrat Fashudtinov. "TOOTH LEG EXCESSIVE UNDERCUT ELIMINATION IN HELICAL CYLINDRICAL GEARS WITH PROTUBERANCE OF HOBBING CUTTER BASED ON GRAPHIC RUN-IN." Bulletin of Bryansk state technical university 2021, no. 7 (2021): 19–27. http://dx.doi.org/10.30987/1999-8775-2021-7-19-27.

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In the paper there are considered procedures for designing a transition curved tooth leg of helical cylindrical gears. A significant parameter of a transition curve is a diameter of boundary points. The boundary point diameter belongs to a bottom point of the involute profile of the teeth side surface of a gear ring. The boundary point position must be lower of the design end point of the involute profile defined by the designer of gearing. A diameter value depends upon a great number of production factors: a profile and wear of a grinding disk, setting up parameters, teeth machining modes of

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34

SAFAROV, D. T., and A. G. KONDRASHOV. "REDUCTION OF ERRORS IN THE PROFILE OF THE TEETH OF GEARS IN THE PROCESSES OF GEAR MILLING WITH WORM CUTTERS." Fundamental and Applied Problems of Engineering and Technology 3 (2021): 63–72. http://dx.doi.org/10.33979/2073-7408-2021-347-3-63-72.

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The article considers an approach to reducing the errors of the involute and longitudinal profiles of gears. The reduction of the profile error consists of several steps – evaluation of indicators relative to the limit values, identification of the technological structure, expert analysis of profilograms, which results in the content of corrective actions. Constant repetition of steps leads to a constant reduction of the most significant profile errors, which significantly reduces the risks of manufacturing wheels with inappropriate profile errors. The scheme is universal and can be used for a

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35

Khryachkov, K. Yu. "THE STUDY OF THE PROCES OF HOBBING OF WORM GEAR SHAVER LATERAL SURFACES." Proceedings of the Southwest State University 21, no. 4 (2017): 39–44. http://dx.doi.org/10.21869/2223-1560-2017-21-3-39-44.

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Worm gear shavers are used for finishing hob gears. The incisions on the lateral surfaces can be rectilinear (they are obtained by grooving at point blank range - their manufacture is labour-consuming, it is impossible to finish the gear tooth with a special profile in the conditions of individual production), have a curvilinear shape (hypocycloid), and also be made in the form of a system of holes (utility model patent No. 102111). According to the design of the worm gear shaver under study (utility model patent No. 38125 [1]), clearance grooves of a hypocycloid shape are cut on lateral surfa

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36

Mihaila, Lucian Adrian, Gheorghe Stan, Claudiu Obreja, and Marius Pascu. "High Precision Rotary Table Used on Milling Machining Centres." Applied Mechanics and Materials 371 (August 2013): 121–25. http://dx.doi.org/10.4028/www.scientific.net/amm.371.121.

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The latest milling machining centres have in their structure a rotary table which is used for machining up to 5 faces of an workpiece using only one set-up. In order to meet the requirements of an workpiece, that are more and more precise, it is recommended to increase the positioning accuracy of the machine tool table and also the number of indexing points. In this paper we present a new rotary, palletizing table which is provided with 360000 indexing positions and at every 4x90° the indexing precision is ±1``. This solution can be integrated in the structure of milling machining centres whic

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KARAZEY, VITALIY, KATERYNA SOKOLAN, ANDRIY KUSHNIRCHUK, and OLEKSIY KALININ. "MODERNIZATION OF THE TURNING TABLE FOR NC MACHINE TOOL." Herald of Khmelnytskyi National University 303, no. 6 (2021): 142–46. http://dx.doi.org/10.31891/2307-5732-2021-303-6-142-146.

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The article envisages the increase in the efficiency of NC machine tool due to the use of an upgrades design of turning table for installation and fixing of workpieces, the use of which will lead to improved productivity of machining. With the help of a turning table it is possible to perform machining of workpieces of different shapes from several sides without resetting, and to rotate the workpiece in different coordinates to carry out other technological transitions. Such tables are widely used un multi-position hole machining, milling planes on drilling and milling machines. The workpiece

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Li, Sai, Lingling Zhu, Luoqiang Liu, Liugang Chen, Hongxia Li та Chunhui Sun. "Influence of high-energy ball milling and additives on the formation of sphere-like α-Al2O3 powder by high-temperature calcination". Zeitschrift für Naturforschung B 73, № 8 (2018): 589–96. http://dx.doi.org/10.1515/znb-2018-0080.

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AbstractIn comparison with the typically worm-like α-Al2O3 powders formed from an unground Al(OH)3 precursor calcined at 1450°C, spherical α-Al2O3 powders with ~1 μm in size were prepared by the calcination of a ground Al(OH)3 precursor with 5 wt.% [NH4]+BF4− under the same calcination conditions. The influence of a high-energy ball milling pretreatment as well as of the additives on the morphological evolution of α-Al2O3 powders was studied using the commercial precursor Al(OH)3 as raw material. The results indicate that the morphology of α-Al2O3 powders is closely related to the morphology o

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Fong, Zhang-Hua. "Mathematical Model of Universal Hypoid Generator With Supplemental Kinematic Flank Correction Motions." Journal of Mechanical Design 122, no. 1 (2000): 136–42. http://dx.doi.org/10.1115/1.533552.

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A mathematical model of universal hypoid generator is proposed to simulate virtually all primary spiral bevel and hypoid cutting methods. The proposed mathematical model simulates the face-milling, face-hobbing, plunge cutting, and bevel-worm-shaped hobbing processes with either generating or nongenerating cutting for the spiral bevel and hypoid gears. The supplemental kinematic flank correction motions, such as modified generating roll ratio, helical motion, and cutter tilt are included in the proposed mathematical model. The proposed mathematical model has more flexibility in writing compute

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Yakimov, Hristo, Irina Aleksandrova, and Yosif Mitev. "MACHINING OF TOOTH PROFILES ON CNC MACHINES." Journal of the Technical University of Gabrovo 66 (June 2023): 29–33. http://dx.doi.org/10.62853/kmyu1846.

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Conventional methods of tooth machining using worm modular milling cutters, gear wheels and gear combs have common disadvantages - they require specialized equipment, are characterized by complex readjustment and relatively low productivity, which are eliminated in skiving. This paper views the possibilities for machining tooth profiles by means of skiving on CNC turning and milling machines. A new version of the kinematics of the process upon cutting inclined teeth has been implemented, where the feed is in the direction of the tooth, no correction in the angular speed is required and a skivi

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Slipchuk, Andrii. "STUDY OF THE CUTTING FORCE BASED ON THE OBTAINED UNDEFORMED CHIPS DURING CUT IN WHEN MACHINING AN INTERNAL GEAR BY POWER SKIVING METHOD." Ukrainian Journal of Mechanical Engineering and Materials Science 10, no. 2 (2024): 46–56. https://doi.org/10.23939/ujmems2024.02.046.

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This article explores the formation of non-deformed chips during the cut-in of an internal toothed ring using the Power Skiving method. This pivotal stage of the cutting process poses significant hazards not only in gear cutting but also in any cutting operation. The study involved modeling the process at the initial stage for various technological parameters, including cut-in depth and number of working passes. To achieve non-deformed chips, a methodology developed for worm milling was applied. The developed simulation can calculate the corresponding geometry of the cut on each rotation of th

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Krivosheya, Anatoliy, Yevhen Pashchenko, Volodymyr Melnyk, and Kyryl Shcherbyna. "Investigation of the influence of the process of gear honing by diamond worm honing tools on the roughness factor of gear wheels." Strength of Materials and Theory of Structures, no. 106 (May 24, 2021): 296–311. http://dx.doi.org/10.32347/2410-2547.2021.106.296-311.

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In the presented article, a new method of finishing is considered in more detail - gear honing of cylindrical gears. Analysis of literature sources shows that the most problematic technological operation is the finishing of gear wheels and gear honing in particular. The difference between the traditional honing of cylindrical gears with disc abrasive honing and the new method of processing with diamond worm honing is shown. The main advantage of this method is that it can be implemented on milling machines. New tools are proposed - diamond worm gears and the technology of their manufacture is

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Artamonov, E. V., V. V. Kireev, and V. A. Zyryanov. "Modeling of process of gear milling for definition of the intense deformed state in replaceable many-sided plates of a worm mill." MATEC Web of Conferences 298 (2019): 00024. http://dx.doi.org/10.1051/matecconf/201929800024.

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The tool equipment plays an important role in work of machine-building enterprises. One of the most important elements of equipment is the metal-cutting tool [1]. Replacement of the tool from HSS of steel on the cutting tool with use of WC-Co [2-7] sintered hard alloys gives increase in productivity and overall effectiveness of processing [8-11]. When the cutting ability of material of the tool increases, the universality of its application decreases therefore the most rational is comprehensive research approach which considers design of the tool the used WC-Co hard alloy. Design, production a

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Safarov, Damir, and Alexey Kondrashov. "Improving the quality of production of gears in terms of errors in the profile of teeth in gear milling operations." MATEC Web of Conferences 298 (2019): 00004. http://dx.doi.org/10.1051/matecconf/201929800004.

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The article describes the scheme for continual improvement of manufacturing quality spur gears in terms of error profiles of the side surfaces of gear teeth. The technique is universal and applicable to any operations of gear processing. The practical application of the technique is considered by the example of gear milling with a worm gear cutter. The errors of profile include metrological indicators of total error profile, the error direction and error of form profile. The scheme of analysis of the data consists of several steps – evaluation of indicators relative to the limit values, identi

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Singh, Abhishek Pratap, Anuj Kumar Jain, and Prateek Mahajan. "Design and Fabrication of a Ball Projecting Machine." International Journal of Advance Research and Innovation 4, no. 3 (2016): 139–44. http://dx.doi.org/10.51976/ijari.431621.

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To make a ball projecting machine which pitches various kinds of balls either soft, leather, baseball or tennis ball at desired line and length as required. It can throw the ball at predetermined speed with required spin/swing effect. Problem with the existing machines is that they are very expensive and because of very low competition they ask for extremely huge price. The project began from the research phase with the identification of basic components used in the making of bowling machine. A thorough review of the theory and operations involved in a bowling machine were studied. A basic des

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Adamczyk, Barbara J., Bartosz Hekner, and Malgorzata Sopicka-Lizer. "The Influence of High Energy Ball Milling on the Morphology of Metal-Ceramic Composite Powders." Solid State Phenomena 246 (February 2016): 59–62. http://dx.doi.org/10.4028/www.scientific.net/ssp.246.59.

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Investigations of high energy milling parameter of aluminum or siluminum based materials with ceramic particles has been conducted. Work consists of two parts. In the first part two types of composite powders with the same metal-ceramic ratio were synthesized via planetary ball milling with the same milling parameters. After SEM studies it has been shown, that despite of materials similarities significantly different milling times have been required for manufacturing fine grained powders. Planetary ball milling of the chosen aluminum matrix composite performed in two different milling cycles w

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de Castro, Mauricio, Osvaldo Mitsuyuki Cintho, and José Deodoro Trani Capocchi. "Comparative Study of Mechanical Activation Improved by High Energy Ball Mills in Chromium Oxide Reduction." Materials Science Forum 802 (December 2014): 41–45. http://dx.doi.org/10.4028/www.scientific.net/msf.802.41.

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The processes of high-energy milling and gained importance among the unconventional methods. In this work, we seek to compare the power supply two types of high energy mills (vibratory mill (SPEX) and planetary mill) with the variation of the milling power. The millings were carried out with a mixture of chromium oxide and aluminum metalic. The reduction of chromium oxide does not occur instantaneously, but gradually as the progress of milling with mechanical activation of powders, this mechanical activation occurs leading to the solid state reaction occurs. The results were obtained for therm

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Bolshakov, G., and D. Tarasov. "INCREASING TECHNOLOGY IN THE DESIGN OF WAVE REDUCERS FOR POWER DRIVES REFERENCES." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 10, no. 7 (2025): 133–44. https://doi.org/10.34031/2071-7318-2025-10-7-133-144.

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Gearboxes with a relatively high gear ratio of 200...300 and a torque of up to 6000 N•m are widely used in rotation drives of access restriction and safety devices. The supply of serial worm and planetary gearboxes with an output torque of 1000 N•m for industrial use is very limited. This has become especially evident after the reduction in the range of foreign-made gearboxes. Designing and manufacturing special gearboxes is associated with significant difficulties due to the large number of parts in planetary gearboxes and the need for specialized gear-cutting equipment. An alternative to pla

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J, Junaidi. "Working process of TU 3a CNC frais machine using software system." International Journal of Engineering & Technology 9, no. 3 (2020): 658. http://dx.doi.org/10.14419/ijet.v9i3.29682.

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This workpiece process is: to find out how to transfer images from Auto CAD software to the Q plus CELL Milling Cnc software, and to find out how to transfer programs from the CNC Milling QELL KELLER software to the TU 3A CNC milling machine. The making of this workpiece uses three main media, namely Auto CAD 2000 software, CNC Milling KELLER Q plus software, and TU 3A CNC milling machine. The process of making the workpiece starts from making the workpiece design in Auto CAD software which is then stored on the CDR via DFX data. The design of the workpiece contained in the CDR is then transfe

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Gong, Ya Dong, Jin Feng Zhang, Jun Cheng, and Yong Zhen Zhang. "A Processing Technical Analysis for the Characteristics of Forces and Surface Roughness in Micro-Scale Milling." Advanced Materials Research 565 (September 2012): 535–40. http://dx.doi.org/10.4028/www.scientific.net/amr.565.535.

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The spindle speed, federate and axial depth of micro-milling are found to have a significant influence on the micro milling forces and surface roughness through experimental analysis of the micro-end milling process. To investigate these issues, an orthogonal test method is developed in this present work. Firstly, experimental analysis for the micro-milling forces and surface roughness was performed based on the micro-end-milling experiments of AL5083-O by using 0.396mm diameter micro-end mills with a miniaturized machine tool. Then, the datum of experiments were classified and analyzed by the

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