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Journal articles on the topic 'Conical machine'

Author: Grafiati

Published: 7 June 2025

Last updated: 16 July 2025

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1

S.K. Shukla, V.G. Arude, Jyoti M. Nath, and P.G. Patil. "Performance Evaluation of a Cotton Heaping Machine." Journal of Agricultural Engineering (India) 47, no. 3 (2024): 40–43. http://dx.doi.org/10.52151/jae2010473.1418.

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A cotton loading/unloading machine for heaping operation was developed and evaluated for its capacity and fibre parameters. A centrifugal fan with open impeller was modified as Rembert fan by attaching a conical disc over the fan impeller. The major components of the machine were inlet flexible pipe, casing, impeller, perforated conical disc, electric motor, outlet GI pipe and trolley. Three conical discs of different perforation sizes were tested to optimize the output and efficiency of the developed machine. A conical disc with 3 mm perforation size was found as optimum size, without choking

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2

Mitome, Ken-ichi, Tohru Gotou, and Takeshi Ueda. "Tooth Surface Measurement of Conical Involute Gears by CNC Gear-Measuring Machine." Journal of Mechanical Design 120, no. 2 (1998): 358–63. http://dx.doi.org/10.1115/1.2826981.

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Developed is a new tooth surface measurement of conical involute gears by CNC gear-measuring machines. Advances in the design and production of conical involute gears and its wide applications are demanding the measurement of the conical involute gears using CNC gear measuring machines. Therefore, a new concept called an “equivalent helical gear” is introduced. Thus, a conical involute gear can be measured as a helical involute gear. Experiments demonstrate that this new method gives accurate results and has practical value. Finally tooth surface analysis of a conical involute gears is also pr

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3

Zhao, Wen Hui, Zhen Yun Duan, and Zhong Wei Ren. "Study on Machining and Measurement for Borosilicate Glass Conical Ellipsoid." Advanced Materials Research 291-294 (July 2011): 2999–3002. http://dx.doi.org/10.4028/www.scientific.net/amr.291-294.2999.

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Surfaces formed by rotating quadratic curve are widely applied in engineering practice. After having studied machining methods and machines, the CNC grinding method based on macro program B for borosilicate glass elliptical cone surface machine with high precision is proposed. Within the allowable error, the coordinates are calculated according to the equation of axial section curve and the surface is formed with tools moving on axial section curve. Through setting parameters of the lathe, the new canned cycle can be defined to process all different kinds of the elliptical cone surface of same

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4

Fugelso, M. A. "A standard conical point drill grinding machine." International Journal of Machine Tools and Manufacture 41, no. 6 (2001): 915–22. http://dx.doi.org/10.1016/s0890-6955(00)00068-7.

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5

Bogdanov, A. V., A. V. Gritsenko, M. V. Cheskidov, and L. A. Shtrikker. "Development of a Vertical Mashing Machine and Specifying its Main Parameters." Agricultural Machinery and Technologies 17, no. 1 (2023): 62–69. http://dx.doi.org/10.22314/2073-7599-2023-17-1-62-69.

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The paper proves the necessity to create new modernized types of fruit and vegetable processing machines. The paper highlights the importance of such machinery versatility, since each individual type of fruit and vegetable has its own physical characteristics, such as solidity, viscosity, moisture content, fibers, seeds, and grains. (Research purpose) To study the zucchini mashing process performed by the developed vertical mashing unit. (Materials and methods) An improved mashing machine design is proposed: a vertical plant with a conical auger inside and a sieve drum. (Results and discussion

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6

Wu, Yingsi, Xiangming La, Xuan Zhao, Fei Liu, and Jianguo Yan. "Design and Performance Testing of Seed Potato Cutting Machine with Posture Adjustment." Agriculture 15, no. 7 (2025): 732. https://doi.org/10.3390/agriculture15070732.

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In China, potatoes are predominantly cultivated using the tuber piece planting method. During the cutting process, it is essential to divide seed potatoes into tuber pieces based on the distribution of their bud eyes, ensuring that each tuber piece contains one to two bud eyes. These tuber pieces are subsequently sown into the soil. Currently, the preparation of potato tuber pieces relies heavily on manual labor, which presents challenges such as inefficiency and high operational costs. To address these issues, a seed potato cutting machine capable of posture adjustment, cutting, and spraying

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7

Baroiu, Nicuşor, Viorel Păunoiu, Virgil Gabriel Teodor, Florin Susac, and Nicolae Oancea. "Geometrical analysis, for rapid prototyping, of the compressor’s helical conic rotor model." MATEC Web of Conferences 178 (2018): 02006. http://dx.doi.org/10.1051/matecconf/201817802006.

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The conical rotary compressor represents a solution for gases compression, for relatively small flow, in conditions of a superior energetic efficiency. Although the theoretical solution for the helical conical compressor was elaborated decades ago, a viable technology solution become possible at industrial level only after the development of machine tools with numerically controlled axes. In this paper is proposed a study, analytical and graphical, concerning the geometry of conical rotary compressor’s rotors, modelled by rapid prototyping technology. The propose modelling allow to elaborate v

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8

Fan, Qiuxia, Qianqian Zhang, Guirong Liu, et al. "An experimental study on wearing of conical picks interacting with rock." Transactions of the Canadian Society for Mechanical Engineering 43, no. 4 (2019): 544–50. http://dx.doi.org/10.1139/tcsme-2018-0225.

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Wearing of conical picks on a coal mining machine and roadheaders are investigated experimentally using a full-scale rotary cutting machine. This study considers three types of conical picks with different tip materials to examine the effects of wear resistance of conical picks and wear characteristics in response to cutting load. The influence of pick wear on the cutting load and pick tip temperature are analyzed, thereby providing an experimental-based guideline for reducing pick wear. The results indicate that the cemented carbide pick has the best wear resistance among the three kinds of p

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Wang, Zhenqian, and Liqiang Zhang. "Mining Machines for Comprehensive Mechanized Mining of Bauxite." Journal of Physics: Conference Series 2557, no. 1 (2023): 012018. http://dx.doi.org/10.1088/1742-6596/2557/1/012018.

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Abstract The mining machine for bauxite is the key equipment for the mechanized mining of underground bauxite ore. The mining machines for shearing and loading bauxite ore have been studied in this paper from three aspects: the determination of key technical parameters, the in-situ tests, optimization, and improvement. Mechanical and physical parameters of bauxite ore, such as high tensile strength, no-cleavage, and abrasion properties, have a great impact on the determination of key technical parameters of the mining machine. The conventional conical picks which are widely used in mining equi

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10

Mitome, K. "Inclining Work-Arbor Taper Hobbing of Conical Gear Using Cylindrical Hob." Journal of Mechanisms, Transmissions, and Automation in Design 108, no. 1 (1986): 135–41. http://dx.doi.org/10.1115/1.3260776.

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The inclining work-arbor taper hobbing is considered one of the most practical methods to cut a conical gear. But an exact hobbing theory has not been made clear, and besides an ideal hobbing machine available inpractical use has not been developed so far. In this paper, an exact kinematic analysis of this taper hobbing is presented, and an imaginary generating rack is obtained. A gear generated by this rack is defined as an ideal gear. Practical hobbing of conical involute gears is discussed. A hobbing machine having an inclining rotary table is tested, and some test gears are cut and inspect

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11

Kruzel, Robert. "Conical Round Tubes - Preliminary Tests for Use on Lighting Columns." Materials Science Forum 972 (October 2019): 141–47. http://dx.doi.org/10.4028/www.scientific.net/msf.972.141.

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Conical pipes belong to a group of economical profiles, which find broad application in various metal products. Until now the conical pipes are manufactured by following methods: rolling on two-high mill in impressions with varying depth on the rolls perimeter; forging in lever swaging machine, formation in combined process of drawing and rolling, and rolling on skew rolling mill. Manufacturing of conical pipes belong to complicated engineering processes, and used until now methods do not allow to meet demand for conical pipes – especially the long ones with large crosswise dimensions, e.g. pi

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Lu, Y., K. Hoang, D. Noake, and N. Low. "Design and analysis of conical rotary compressor." IOP Conference Series: Materials Science and Engineering 1267, no. 1 (2022): 012001. http://dx.doi.org/10.1088/1757-899x/1267/1/012001.

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Conical Rotary Compressor (CRC) is a screw type Positive Displacement Machine (PDM) consisting of one inner rotor rotating inside an outer rotor. The conical internal meshing rotors with the feature of variable pitch and rotor profile have an inherent capability to operation at high pressure ratio due to high built-in volume ratio and low leakage. CRC has potential to run in various applications such as Heating, Ventilation, and Air Conditioning (HVAC) system, vacuum pumps, and air compressors. The performance of the machine is heavily affected by rotor profile and rotor geometry. In this pape

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Breshev, Oleksii, Pavlo Nosko, Oleksandr Bashta, and Maksym Radko. "DEVELOPMENT OF ADJUSTABLE TAPERED AEROSTATIC BEARINGS FOR NON-CONTACT DIRECT MACHINE DRIVES." Bulletin of the National Technical University «KhPI» Series: Engineering and CAD, no. 1 (December 28, 2024): 10–18. https://doi.org/10.20998/2079-0775.2024.1.02.

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The article is devoted to making adjustable conical air bearings. Its application in different machines allows increase load capacity and reliability, speed extension, reduce mass, overall dimensions and air consumption, secure stable rotary motion in speed wide range due to adjustment of static and dynamic characteristics of direct drives. Mathematical models of single-support and multi-support systems have been designed for study of its characteristics and efficiency of suggested improvements. Function relations between structural, functional, geometric parameters of conical aerostatic syste

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14

Jin, Xin Qin, Jian Yi Zhang, and Dan Song. "Cognitive Study of Geometric Figure in Man-Machine Interface." Applied Mechanics and Materials 278-280 (January 2013): 2274–77. http://dx.doi.org/10.4028/www.scientific.net/amm.278-280.2274.

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Graphic elements is the most likely form to accept in people’s visual perception of man-machine interface, different people will have different cognitive graphics understanding. In this paper, the rectangular cylindrical, triangular prism, cylindrical, conical, spherical geometry as a stimulus, and test the reaction time of the subjects, the misuse rate of indicators above the 5 geometries recognized. The outcome: In terms of “press”, rectangular cylindrical, triangular prism, cylindrical is more sensitive than conical; In terms of “pull”, triangular prism, cylindrical is more sensitive than s

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15

Danang Risky Suhadi and Kris Witono. "Analisis Perawatan Heading Machine dengan Metode Reliability Centered Maintenance (RCM)." Jurnal Teknik Mesin, Industri, Elektro dan Informatika 3, no. 3 (2024): 149–63. http://dx.doi.org/10.55606/jtmei.v3i3.4183.

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The heading machine is a critical type of machine used in the production of header tubes. If a failure occurs during the production of header tubes, the product cannot proceed to the next process and must be discarded. However, this machine frequently encounters component failures that require halting the machine for repairs, which is detrimental to the company. This research aims to enhance the machine's reliability by identifying the critical components and scheduling appropriate maintenance based on the heading machine's needs. The research method used is RCM, which includes collecting data

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16

Prakash, Prashant, Ravi Shankar Anand, and Sanjay Kumar Jha. "Effect of Weld Zone Shape on Microstructure and Tensile Properties in Friction Stir Welding Process." Materials Science Forum 978 (February 2020): 84–90. http://dx.doi.org/10.4028/www.scientific.net/msf.978.84.

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This article presents the effect of weld zone shapes on microstructure and tensile properties of weld joints in friction stir welding. Experiments are conducted using four different tool pin profiles that are cylindrical, conical, cylindrical-conical and stepped-conical for analysing the weld zone shape. The weld zone shape properties are defined by characteristic length. Grain size and mode of fracture surface behavior are analysed by optical microscope and scanning microscope respectively and tensile strength is measured by universal testing machine. It is also observed that the weld zone sh

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17

Chen, Shijun, Xinyu Jin, Rucheng Hu, Fei Liu, and Zhongsheng Hu. "Investigation on the Rock-Fragmentation Process of Conical-Shaped TBM Cutterhead in Extremely Hard Rock Ground." Stavební obzor - Civil Engineering Journal 33, no. 3 (2023): 409–25. http://dx.doi.org/10.14311/cej.2023.03.0031.

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Conical-shaped cutterhead is one type of tunnel boring machine (TBM) cutterhead which may have advantage of high rock-breaking efficiency in extremely hard rock ground. This study investigated the rock-fragmentation process of disc cutters on the conical-shaped cutterhead via a series of numerical simulations that had been verified by laboratory rock-fragmentation tests. Firstly, the rock-fragmentation numerical model of the six cutters in the 'flat-cone' contiguous part was built based on cutting mode analysis of the conical-shape cutterhead. The rock sample in the numerical model was synthes

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18

Mavlonova, Iroda, Lobar Nutfullaeva, Jamshid Sharipov, Furqat Ismoyilov, and Sardor Sayitqulov. "A physico-mechanical approach to analyzing nonlinear elasticity in sewing machine conical springs." EPJ Web of Conferences 321 (2025): 01002. https://doi.org/10.1051/epjconf/202532101002.

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This study presents an innovative approach to addressing vibration issues in sewing machines used in the light industry. The research focuses on the experimental analysis of a novel conical spring mechanism designed to enhance shock absorption in the kick mechanism of sewing machines, employing a physico-mechanical approach. This methodology integrates principles from physics and mechanics to provide a nuanced understanding of the spring's nonlinear elasticity and its impact on vibration damping. The study outlines the experimental determination of the oscillation characteristics of the propos

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19

Vangsness, J. D., and M. A. Fugelso. "A Computer Controlled Contouring Twist Drill Grinding Machine." Journal of Engineering for Industry 117, no. 1 (1995): 117–20. http://dx.doi.org/10.1115/1.2803271.

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This paper describes a computer controlled twist drill grinding machine that places a maximum of function in the computer controller making the mechanical part of the machine very simple. A wide variety of conical points can be produced by a virtual rotation about the cone axis accomplished by simultaneous movement of the grinding machine joints.

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20

OHMACHI, Tatsuya, Ken-ichi MITOME, Takeshi TAMURA, and Hidenori KOMATSUBARA. "Development of Gear Grinding Machine for Concave Conical Gear." Transactions of the Japan Society of Mechanical Engineers Series C 65, no. 639 (1999): 4464–69. http://dx.doi.org/10.1299/kikaic.65.4464.

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21

Oltmanns, Austin F., and Andrew J. Petruska. "Conforming Capacitive Load Cells for Conical Pick Cutters." Sensors 24, no. 13 (2024): 4238. http://dx.doi.org/10.3390/s24134238.

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In underground coal mining, machine operators put themselves at risk when getting close to the machine or cutting face to observe the process. To improve the safety and efficiency of machine operators, a cutting force sensor is proposed. A linear cutting machine is used to cut two separate coal samples cast in concrete with conical pick cutters to simulate mining with a continuous miner. Linear and neural network regression models are fit using 100 random 70:30 test/train splits. The normal force exceeds 60 kN during the rock-cutting tests, and it is averaged using a low pass filter with a 10

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22

Ota, Tomoyuki, and Takashi Iizuka. "Fundamental Investigation for Tensile Test Using Conical Cupping Die." Key Engineering Materials 622-623 (September 2014): 292–99. http://dx.doi.org/10.4028/www.scientific.net/kem.622-623.292.

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A number of researches have conducted in order to evaluate the ductile fracture occurrence by using forming limit diagram. However, specimen shape and testing machine for obtaining forming limit diagram of sheet metal have some problems. The problem about specimen shape is occurring at the specimen edge. In uniaxial tensile test, the specimen edge may cause a defused neck in width direction and may have influence on fracture occurrence. In biaxial tensile test by using a cruciform specimen, a uniform biaxial deformation is not obtained because uniaxial tensile stress occurs at the specimen edg

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23

Balajti, Zsuzsanna, and Zoltán Mándy. "The influence of the position and shape geometry of the counter-conical motion transmitter pin on the pitch fluctuation of the spiroid worm machined with adjusted shaft." Multidiszciplináris tudományok 12, no. 4 (2022): 127–36. http://dx.doi.org/10.35925/j.multi.2022.4.13.

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The difference between the mathematical defined shape of the conical helicoid surface and the operating surface of the spiroid worm produced with axis adjustment on a thread grinding machine results – among other things –in thread pitch fluctuation. During the manufacturing of conical helicoid surfaces the transmission of the rotation from the main spindle to the worm shaft can be realised by a driving pin and an adjusted lathe dog. This article deals with the examination of the fluctuation of the thread pitch parameter occurring when using a counter-conical drive pin. The fluctuation is descr

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24

Astakhov, Sergey P., Nikolay N. Stroev, Igor V. Yakimenko, and Evgeny S. Sulimsky. "The Results of the Experimental Study of the Method of Directional Radiation Pattern Transformation of a Conical Horn Radiator Operating in Millimetric (Sub-THz) Band." Light & Engineering, no. 06-2021 (December 2021): 157–61. http://dx.doi.org/10.33383/2021-058.

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The article describes the experimental study of one of techniques of implementation of a machine-vision illuminant operating within the millimetre (sub-THz) band and forming a directional radiation pattern (DRP) with parameters compliant with the specifics of functioning of radio vision systems. In view of this, experimental research of the method of formation of a DRP configuration of a millimetre (sub-THz) machine vision system illuminant based on a conical horn radiator adapted to receiver field of view was studied experimentally using a quasi-optic system. The results of the study of the D

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25

KIKKAWA, Koichi, Masaki HIROSAWA, Hidekazu KIKUCHI, Yoshio MIZUGAKI, and Hisanobu TERAI. "3362 Dependency of Working Accuracy on Location of Truncated Conical Workpiece Machined by 5-axis Controlled Machine Tool with Geometric Error." Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2011.6 (2011): _3362–1_—_3362–4_. http://dx.doi.org/10.1299/jsmelem.2011.6._3362-1_.

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26

Wang, X. J., and X. G. Fu. "Design of MK1432/H CNC Precision Cylindrical Grinding Machine." Advanced Materials Research 670 (March 2013): 22–25. http://dx.doi.org/10.4028/www.scientific.net/amr.670.22.

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MK1432/H CNC precision cylindrical grinding machine is suitable for precision grinding IT6 to IT5 cylindrical or conical revolving workpiece, the table of the rail bed for the paste with plastic rail, the first holder of the rotating dial tone from the motor frequency speed, with Germany's Siemens 810D CNC two-axis system, built-in PLC, liquid crystal display. Servo motor is 1FK6 series; configure automatic measuring instrument line detection, automatic grinding work to achieve closed-loop cycle, ensuring high machining dimensional accuracy. Machine bed using a large round hole, fin-shaped rei

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27

Dehtiarov, Ivan, Anna Neshta, Mykola Samardak, Vitalii Kononovych, and Yaroslav Klok. "Analysis of geometric parameters and technical requirements for pin conical joints in pump nodes." Bulletin of the National Technical University «KhPI» Series: New solutions in modern technologies, no. 4 (10) (December 30, 2021): 24–35. http://dx.doi.org/10.20998/2413-4295.2021.04.04.

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The article analyzes the causes of the situation with the appearance of manufacturing errors and the lack of the necessary technical requirements to perform a pin conical joint his intended purpose. The analysis was performed based on geometric construction of the assembly dimensional chain of two parts to be connected and a conical pin with a taper 1:50 according to GOST 9465-79, which is used in the pin joints of pumping equipment. The geometric analysis included the separation of deviations into linear dimensions and angular deviations. The values of the angular deviations were reduced to t

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28

Ponomarev, B. B., and Van Nam Nguen. "Algorithm of minimization of tool idle movements during milling of complex surfaces on 3-axis CNC machines." Izvestiya MGTU MAMI 8, no. 2-2 (2014): 85–88. http://dx.doi.org/10.17816/2074-0530-67699.

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The paper presents one of the methods of nonproductive machine time optimization of tools during milling of parts with complex surfaces on combined machine. In particular, there was described an algorithm to minimize the idle movements of spherocylindrical and conical cutters. Calculations were performed on the test parts with complex surfaces.

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Kozeruk, A. S., R. O. Dias Gonsales, M. I. Filonova, V. О. Kuznechik, and E. N. Varopay. "Kinematic analysis of the method increasing the accuracy of treatment of conic surfaces." Proceedings of the National Academy of Sciences of Belarus, Physical-Technical Series 65, no. 2 (2020): 197–204. http://dx.doi.org/10.29235/1561-8358-2020-65-2-197-204.

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A method for processing high-precision conical surfaces under conditions of free grinding on a lever machine is proposed, which allows adjusting the process parameters taking into account the technological heredity of the workpiece from the point of view of the distribution pattern of the allowance to be removed from its surface. The scheme of implementation of the method in which the main links are a tool in the form of a faceplate and a separator for maintaining the required accuracy of its flatness. In order to develop a method of targeted control of the actuation of the working surface of

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Igamberdiev, Kholmurot Khaydarovich, and Zafarjon Saddin ugli Turdaliev. "AIR-LOCK COTTON HARVESTING EQUIPMENT." EURASIAN JOURNAL OF ACADEMIC RESEARCH 1, no. 1 (2021): 521–27. https://doi.org/10.5281/zenodo.4720077.

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31

TORUN, AHMET REFAH. "Dynamic response of filament winding angle on complex shaped mandrels." Industria Textila 71, no. 05 (2020): 452–57. http://dx.doi.org/10.35530/it.071.05.1717.

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Aerodynamic parts such as rocket nose and heat shield related composites are mainly produced with filament winding machines. Winding angle of the reinforcement filament is the main parameter to determine the thermomechanical properties of the final composite part. The angle adjustments on the machine cause the temporary response of the filaments. This study derives an analytical method to determine the real angle of the filaments on the mandrel. Keywords: winding angle, filament winding, composite materials, conical parts, complex shape mandrels

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32

Kobayashi, Seikichi. "New Conical-Disc Refiner. The key machine for Mechanical Pulping." JAPAN TAPPI JOURNAL 46, no. 2 (1992): 287–99. http://dx.doi.org/10.2524/jtappij.46.287.

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OBATA, Koji, Ken-ichi MITOME, Hidenori KOMATSUBARA, and Yukinori ARIGA. "317 Cutting of Concave Conical Gear by CNC Hobbing machine." Proceedings of Conference of Tohoku Branch 2004.39 (2004): 124–25. http://dx.doi.org/10.1299/jsmeth.2004.39.124.

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Borkar, Narayan T., Shiv Prasad Patel, Prabhat Kumar Guru, and M. Sivashankari. "Performance evaluation and energetics of different type of pre-germinated rice seeders." Oryza-An International Journal on Rice 61, no. 4 (2024): 392–99. https://doi.org/10.35709/ory.2024.61.4.13.

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The mechanization of rice cultivation leads to higher productivity and results in higher returns to farmers. For rice crop, pre-germinated seed sowing by a drum seeder is one of the best options to eliminate the broadcasting method. The power-operated cylindrical drum, conical drum, and cup-type seeder were evaluated in comparison to manually operated six-row cylindrical drum, four-row conical drum and two-row cup-type seeder for consecutive Rabi seasons. Important machine performance parameters viz. field capacity, speed of operation, labor required, field efficiency, energy indices, economic

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Dewangan, Saurabh, Somnath Chattopadhyaya, and Sergej Hloch. "Investigation into Coal Cutting Operation by Using Conical Pick of Cast Iron with LH710 Coated Tip." Applied Mechanics and Materials 592-594 (July 2014): 426–31. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.426.

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In the present paper, analysis of coal cutting has been carried out by conical pick which was developed by cast iron mixed with 21% (by weight) mild steel. The conical tip of pick was coated with material LH710 (hardness 40 RC) which is basically an alloy of Fe, Mn, Cr and Ni. The coal sample was cut linearly by using shaper machine. Parameters as depth of cut, amount of coal removed and temperature generated during cutting were analyzed for different tilt angle of tool and best compromise was found out among them.

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Je, Yeong-Wan, Young-Ju Kim, and Youn-Jea Kim. "The Prediction of Separation Performance of an In-Line Axial Oil–Water Separator Using Machine Learning and CFD." Processes 10, no. 2 (2022): 375. http://dx.doi.org/10.3390/pr10020375.

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Recently, global energy consumption has increased due to industrial development, resulting in increasing demand for various energy sources. Aside from the increased demand for renewable energy resources, the demand for fossil fuels is also on the rise. Accordingly, the demand for resource development in the deep sea is also increasing. Various systems are required to efficiently develop resources in the deep sea. A study on an in-line type oil–water separator is needed to compensate for the disadvantages of a gravity separator that separates traditional water and oil. In this paper, the separa

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Ihara, Yukitoshi. "Ball Bar Measurement on Machine Tools with Rotary Axes." International Journal of Automation Technology 6, no. 2 (2012): 180–87. http://dx.doi.org/10.20965/ijat.2012.p0180.

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A ball bar is a very convenient device for measuring the motion accuracy of machine tools. Some trials have also been done for measuring motion accuracy of industrial robots. Nowadays, multi-axis machines such as five-axis machining centers are very popular, and therefore, there is increased demand for checking their accuracy. This paper introduces an idea for checking the motion accuracy of five-axis machining centers and diagnosing error sources by reviewing trial measurements on articulated industrial robots. There are two problems. The first problem is that the ball bar can measure only di

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Kang, K. X., B. He, and S. J. Wang. "Experimental Study on the Breaking Ability of the Cutting Angle of Conical Picks." MATEC Web of Conferences 319 (2020): 04002. http://dx.doi.org/10.1051/matecconf/202031904002.

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This Effects of cutting angle of conical picks affecting on rock breaking capacity was researched to calculate the low construction efficiency of the conical picks at hard rock cutting. Firstly, according to the construction situation of the conical picks, the rotary milling test bench of rock was built. Secondly, the physical and mechanical properties of four kinds of rocks (blue sandstone, red sandstone, limestone, granite.) were measured, and the brittleness index of the four kinds of rocks was calculated. Finally, four kinds of rocks were tested at six cutting angles, respectively. The res

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Bołoz, Łukasz. "Directions for increasing conical picks’ durability." New Trends in Production Engineering 2, no. 1 (2019): 277–86. http://dx.doi.org/10.2478/ntpe-2019-0029.

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Abstract Conical picks are cutting tools used in many branches, in particular in the mining, road construction and building branch. Contact with the excavated face causes their constant wear, which is an unfavorable but unavoidable process. Milling heads of working machines are equipped with several dozen conical picks, and mining in abrasive or hardly accessible rocks can reduce their life to a few hours. It is in the interest of both users and producers to increase their durability, as tools replacement, apart from purchase and logistic costs, results in machine downtimes. In the article var

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Tan, Chin Joo. "End Formation of a Round Tube into a Square Section with Reduced Forming Loads." Applied Mechanics and Materials 395-396 (September 2013): 945–48. http://dx.doi.org/10.4028/www.scientific.net/amm.395-396.945.

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Low formation loads are desirable in metal stamping industries as it reduces the press capacity of the machine and the tooling cost. In the previous study, the author had successfully developed a 2-stage end formation process of a round tube into a square section having small corner radii. However, the formation load in this process increased linearly with the punch stroke in the 1st stage due to the continuous expansion of the tube end by the conical die. Hence, buckling and cracks occurred at the circular section and the bottom end of the square section respectively when the punch stroke was

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Kalchenko, Volodymyr, Vitalіі Kalchenko, Antonina Kolohoida, Olga Kalchenko, and Dmytro Kalchenko. "Building a model of the process of shaping tapered calibrating areas of wheels at the two-sided grinding of round ends." Eastern-European Journal of Enterprise Technologies 2, no. 1 (116) (2022): 62–70. http://dx.doi.org/10.15587/1729-4061.2022.253660.

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This paper reports the spatial modeling of the dressing process of grinding wheels with a conical calibration area to enable two-sided end grinding of cylindrical parts. Components with cylindrical end surfaces are common in the industry, for example, bearing rollers, crosses, piston fingers, and others. High requirements are put forward for the accuracy and quality of the end surfaces. The most efficient is to machine them simultaneously on a double-sided face grinding machine. To improve the quality, grinding is carried out by oriented wheels. The wheel’s angle of rotation in the vertical pl

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Volodymyr, Kalchenko, Kalchenko Vitalіі, Kolohoida Antonina, Kalchenko Olga, and Kalchenko Dmytro. "Building a model of the process of shaping tapered calibrating areas of wheels at the two-sided grinding of round ends." Eastern-European Journal of Enterprise Technologies 2, no. 1 (116) (2022): 62–70. https://doi.org/10.15587/1729-4061.2022.253660.

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This paper reports the spatial modeling of the dressing process of grinding wheels with a conical calibration area to enable two-sided end grinding of cylindrical parts. Components with cylindrical end surfaces are common in the industry, for example, bearing rollers, crosses, piston fingers, and others. High requirements are put forward for the accuracy and quality of the end surfaces. The most efficient is to machine them simultaneously on a double-sided face grinding machine. To improve the quality, grinding is carried out by oriented wheels. The wheel’s angle of rotation in the verti

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Xu, Li Fu, J. Chen, Shu Tao Huang, and Li Zhou. "Influence of the Sharpening Methods for Drill Flank Surfaces on the Compressive Strength of PCD Inserts." Advanced Materials Research 188 (March 2011): 364–67. http://dx.doi.org/10.4028/www.scientific.net/amr.188.364.

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In this paper, a polycrystalline diamond drill was designed to machine non-ferrous difficult-to-machine materials. The effect of the sharpening methods for drill flank surfaces on the compressive strength was investigated by using finite element method. The results show that the compressive strength of plane grinding is better than that of conical grinding method, however, with the increasing of the clearance angle of the drill, the compressive stress increased significantly.

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LIU, Yongping. "GRINDING OF ELLIPTICAL GEARS WITH CNC CONICAL WHEEL GEAR GRINDING MACHINE." Chinese Journal of Mechanical Engineering 42, no. 12 (2006): 70. http://dx.doi.org/10.3901/jme.2006.12.070.

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Antonets, I. V., and S. M. Bondar’. "Device for cleaning a conical hole in a machine-tool spindle." Russian Engineering Research 33, no. 11 (2013): 670–71. http://dx.doi.org/10.3103/s1068798x13110051.

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Ahmadi, H., M. Ekrami, H. Sabouri, and M. Bayat. "Experimental and numerical investigation on the effect of projectile nose shape in low-velocity impact loading on fiber metal laminate panels." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 233, no. 10 (2018): 3665–79. http://dx.doi.org/10.1177/0954410018804384.

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In this paper, low-velocity impact responses of 2/1 GLARE 3 (a commercial type of fiber metal laminate) specimens were studied experimentally and numerically. The effects of indenter's nose shape (flat, conical, and hemispherical) on energy absorption and failure mechanisms were thoroughly investigated. Drop weight testing machine with different impact energies was used for experimental tests and numerical simulation was also carried out. Failure mechanisms, such as delamination, debonding, aluminum sheet rupture, and composite laminate fracture, were discussed by sectioning the tested specime

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Chudasama, Mahesh, and Harit K. Raval. "Comparison of Analytical Models of Force Prediction during Dynamic Bending Stage for 3-Roller Conical Bending Process." Advanced Materials Research 1016 (August 2014): 150–55. http://dx.doi.org/10.4028/www.scientific.net/amr.1016.150.

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Conical bending process using three rollers with different configurations is a widely used process for manufacturing conical sections and shells in the industries. The process involves static as well dynamic stages. For optimum design of the machine, accurate analytical model of the force prediction is required for static as well dynamic bending stages. In this paper the analytical models considering three different stress conditions have been compared with the experimental results. The observations of the comparison have been reported. It is concluded that for higher bottom roller inclination

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Filonova, M. I., R. O. Dias Gonzalez, A. A. Sukhotzkiy, A. S. Kozeruk, and A. V. Semchuonok. "Technological Features in Processing of Conical Lenses." Science & Technique 19, no. 6 (2020): 521–27. http://dx.doi.org/10.21122/2227-1031-2020-19-6-521-527.

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The paper presents the technology of obtaining flat-conical lenses (axicons) by the method of free grinding a work-piece to a flat tool through a layer of abrasive suspension. For this, theoretical and experimental studies of the regularities of stock removal from the base of the cone and its lateral surface have been carried out. The processing modes have been identified that ensure both uniform operation of the flat surface of the part and enhanced removal of the allowance in the edge or central zone of this surface. During the study of the processing of the conical surface, the set-up param

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Szwedowicz, Dariusz, and Jorge Bedolla. "Experimental and Numerical Coupling Proof of Conical Frictional Joints." Key Engineering Materials 347 (September 2007): 557–62. http://dx.doi.org/10.4028/www.scientific.net/kem.347.557.

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Conical rings are used to joint a shaft with other mechanical parts through frictional forces induced by clamping of the inner ring into the outer one. In design, their coupling strength and the allowable torque are determined with the well known analytical formulas. However, the assumption of rigid and smooth contacts considered in the analytical solution generates technical uncertainties for reliability of conical joints especially for their small dimensions. The coupling strength of the conical rings is investigated at a set-up and by using Finite Element (FE) Method. A FE model of the anal

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Pivkin, Petr, Vladimir Grechishnikov, Artem Ershov, and Nikita Mironov. "Influence of the radius of the generatrix of flank surface on the geometric parameters of the cutting wedge of the twist drill." E3S Web of Conferences 458 (2023): 10004. http://dx.doi.org/10.1051/e3sconf/202345810004.

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Drills with various flank surface shapes are widely used to machine holes. Drill teeth have flank surfaces of various shapes, flat, conical and helical. In this work, we have investigated the influence of radius of the generatriх in the form of a circular arc on the geometric parameters of the cutting wedge. It has been found that the range of changes in the clearance and rake angles along the cutting edge decreases with the decreasing radius of generatrix forming rake. It was found that a tool with a minimum permissible radius of curvature has the best distribution of rake and clearance angle

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