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Dissertations / Theses on the topic '004.38:621.9'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Merino, Perez Julian Luis. "The effect of resin on tool wear in the drilling of CFRP composites." Thesis, University of Sheffield, 2016. http://etheses.whiterose.ac.uk/13479/.

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Tool wear developed in the drilling of carbon fibre reinforced polymer (CFRP) and other FRP composites has been typically attributed in literature to the abrasive nature of the fibres. Unexpectedly, early research conducted by Sandvik Coromant found that the type of resin had an important influence on the tool wear developed in the drilling of CFRP composites with similar carbon fibre fabrics and different resins using coated and uncoated WC-Co tools. This thesis studied the influence of resin on tool wear in the drilling of CFRP composites by investigating the influence of workpiece constitue

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2

Daneshmend, Laeeque Khan. "Adaptive control and monitoring of a C.N.C. lathe using feed-force and machine-vision." Thesis, Imperial College London, 1985. http://hdl.handle.net/10044/1/34746.

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This thesis examines some aspects of adaptive control and machine monitoring for Computer Numerically Controlled (CNC) lathes. The design and implementation of a distributed, axls-partioned, multi-microprocessor based CNC system is described in Chapter 2. This CNC system, retrofitted to a lathe, has been developed specifically as a test-bed for research into advanced control and machine monitoring techniques. Chapter 3 is a survey of adaptive control and monitoring techniques for machine tools in general. The next three chapters are devoted to the parameter adaptive control of feed force. Chap

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3

Mohamad, Khan Shah Fenner. "Novel indirect additive manufacturing for processing biomaterials." Thesis, University of Newcastle upon Tyne, 2015. http://hdl.handle.net/10443/3022.

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The aim of this work was to identify methods for the production of patient-specific biomedical devices via indirect additive manufacturing (AM) methods. Additive manufacturing has been shown to provide a good solution for the manufacture of patient specific implants, but in a limited range of materials, and at a relatively high cost. This research project considered what are known as “indirect” AM approaches, which typically consider AM in combination with one or more subsequent processes in order to produce a part, with a maxillofacial plate and mandible resection used as a demonstrator appli

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4

Smith, Christopher. "Application of layout optimisation to the design of additively manufactured metallic components." Thesis, University of Sheffield, 2016. http://etheses.whiterose.ac.uk/13364/.

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Additive manufacturing (`3D printing') techniques provide engineers with unprecedented design freedoms, opening up the possibility for stronger and lighter component designs. Such designs can be developed using structural topology optimisation, a method that computationally designs minimum mass components. Whilst many methodologies now exist this thesis focuses solely on a method known as layout optimisation where components are designed to meet a static strength target using a minimal amount of material. Although layout optimisation offers several advantages over the more predominant topology

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5

Smith, Andrew Charles. "Design of high power ultrasonic manufacturing tools : a systems approach." Thesis, Loughborough University, 1997. https://dspace.lboro.ac.uk/2134/11216.

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High power ultrasonics is currently under-utilised as a manufacturing technology. The potential of the technology in areas such as welding, fastening and cutting has not been fully realised because the beneficial mechanisms available in ultrasonic systems are not always understood and therefore are not fully utilised. The empirical approach to much of the design process often results in unreliable operating performance in customised tools. The aim of the research reported in this thesis, is to develop a structured approach to the design and optimisation of high power ultrasonic systems. Furthe

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6

Ogun, Philips S. "Modelling and real-time control of a high performance rotary wood planing machine." Thesis, Loughborough University, 2012. https://dspace.lboro.ac.uk/2134/10133.

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Rotary planing is one of the most valuable machining operations in the timber processing industry. It has been established that cutting tool inaccuracy and forced vibration during the machining process are the primary causes of surface quality degradation. The main aim of this thesis is to design a control architecture that is suitable for adaptive operation of a wood planing machining in order to improve the quality of its surface finish. In order to achieve the stated goal, thorough understanding of the effects of machine deficiencies on surface finish quality is required. Therefore, a gener

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7

Amer, Waseem. "Distributed embedded system with internet GSM connectivity for intelligent e-monitoring of machine tools." Thesis, Cardiff University, 2006. http://orca.cf.ac.uk/56071/.

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Machining is one of the most important operations in many industrial environments. To prosper in today's competitive industrial world any machining system should be able to deliver the highest possible quality at the lowest possible costs, with very high reliability and flexibility. To fulfil these requirements the idea of e-Monitoring an industrial process was introduced by the Intelligent Process Monitoring and Management (IPMM) Centre at Cardiff University. It has considerable potential applications in industrial systems to not only monitor the health of the machines but also for data manag

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8

Kirkwood, L. "Characterisation of wear resistance of natural and synthetic diamond tools during single point diamond turning." Thesis, Cranfield University, 2013. http://dspace.lib.cranfield.ac.uk/handle/1826/12277.

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Achievable cutting distance of a diamond tool during turning is finite and is a limiting factor in the size of component that can be turned. This limit is particularly problematic when attempting to turn brittle materials, such as those used in infra-red optics. Natural diamond tools have been used for this application. However natural diamond introduces problems: the gems can contain possible contamination with a range of impurities and strong residual stresses from formation. Cutting distance is therefore inconsistent when using natural diamond. Industry is keen to increase possible cutting

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9

Dogbe, Selasi Cudjoe. "Predictive milling of active pharmaceutical ingredients and excipients." Thesis, University of Leeds, 2016. http://etheses.whiterose.ac.uk/17937/.

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Spiral jet milling is a size reduction process used in various industries, ranging from paints to food and pharmaceuticals. It has great benefit in the pharmaceutical industry due to its ability to reduce particulate solids to micron sizes and narrow size distributions. Despite its heavy usage, the underlying size reduction mechanism of the mill is not well understood. However it is generally known that the milling behaviour is dependent on the grinding conditions of the mill, as well as the materials physical and mechanical properties. The system is also very energy inefficient. In this work

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10

Sudiarso, Andi. "In-process electrochemical discharge dressing of metal-bonded diamond grinding wheels." Thesis, University of Manchester, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.694749.

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11

Leigh, Stephen. "Laser drilling of cooling holes in high pressure turbine blades." Thesis, University of Manchester, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.706078.

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12

Moradlou, Hamid. "Investigation into re-shoring UK manufacturing using additive manufacturing as a method to enable manufacturing postponement." Thesis, Loughborough University, 2016. https://dspace.lboro.ac.uk/2134/23752.

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This thesis describes case study research investigation into re-shoring UK manufacturing using Additive Manufacturing as a method to enable manufacturing Postponement. After identifying the gap in the knowledge by conducting a literature review, the author aims to understand the primary motivation behind the re-shoring phenomenon in the UK. The initial investigation is done by targeting the UK based organisations that have been involved in supporting the re-shoring phenomenon. As a result, lack of responsiveness was found to be the key factor behind re-shoring in the UK. This is then followed

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13

Nurbanasari, M. "Influence of conventional heat treatment and thermomechanical processing on the microstructure and hardness of two tungsten hot working tool steels." Thesis, University of Sheffield, 2013. http://etheses.whiterose.ac.uk/4105/.

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The H21 and H23 tungsten hot working tool steels are used at elevated working temperatures due to their resistance to softening, high hot hardness, and high compressive strength. The mechanical properties of these tool steels are strongly affected by the presence of carbides. High concentration of carbide forming elements in these tool steels tends to form brittle eutectic carbide networks. Carbide networks in the as cast condition are detrimental to their mechanical properties. The objective of this study was to identify controlled thermomechanical processing (TMP) parameter, namely deformati

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14

Козій, Богдан Іванович. "Автореферат дипломної роботи на здобуття освітнього ступеня «магістр»". Thesis, Тернопільський національний технічний університет імені Івана Пулюя, 2017. http://elartu.tntu.edu.ua/handle/123456789/19093.

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Результати даного дипломного проекту можуть бути застосовані для автоматизації обслуговування електронних автоматизованих телефонних станцій типу С-32. Пакет адаптований до умов діяльності телефонних станцій.<br>В даному дипломному проекті було створено програмно-апаратний комплекс постобробки та керування даними для обслуговування електронних автоматизованих телефонних станцій типу С-32. Завдання також мало на увазі створення необхідної системи сигналізації аварійних ситуацій. Наведено модель комплексу та його детальний опис, розроблено та використано математичне та інформаційне забезпечення

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15

Mahmood, Khalid. "An investigation into laser deposition of machining chips and characteristics of the final clad." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/an-investigation-into-laser-deposition-of-machining-chips-and-characteristics-of-the-final-clad(45daf674-4f3f-487b-b25c-14fab168b5d0).html.

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Laser metal deposition is an additive manufacturing technique to build fully dense structures with a strong metallurgical bonding with the underlying material. Spherical gas-atomised metal powders are principally used as build material which is a costly option and restricts its application on a wide scale. On the other hand, nonspherical particles produced by machining are much cheaper to produce and readily available as waste swarf which should be recycled. The use of machined particles as a viable form of build material for laser direct metal deposition has not been explored previously and i

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16

Akande, Stephen Oluwashola. "Development of quality system for additive manufacturing." Thesis, University of Newcastle upon Tyne, 2015. http://hdl.handle.net/10443/2831.

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Selective laser sintering (SLS) and fused filament fabrication (FFF) are significant methods in additive manufacturing (AM). As AM is increasingly being used to manufacture functional parts, there is a need to have quality systems for AM process, to ensure repeatability of properties or quality of part made by the process. The primary aim of this research is to develop quality systems for SLS and FFF processes of AM. In order to develop a quality system for SLS process based on defining a minimum set of tests to qualify a build, two SLS materials of Nylon 11 and Nylon 12 were investigated. Mel

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17

Rashid, Waleed Bin. "Surface defect machining : a new approach for hard turning." Thesis, Heriot-Watt University, 2014. http://hdl.handle.net/10399/2840.

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Hard turning is emerging as a key technology to substitute conventional grinding processes, mainly on account of lower equipment cost, short setup time, and a reduced number of process steps. This is, however, being impeded by a number of challenges required to be resolved, including attainable surface roughness, surface deteriorations, surface residual stresses and metallurgical transformations on the machined steel surface (white layer). In this thesis, a novel approach named Surface Defect Machining (SDM) is proposed as a viable solution to resolve a large number of these issues and to impr

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18

Saleh, Khaled. "Modelling and analysis of chatter mitigation strategies in milling." Thesis, University of Sheffield, 2013. http://etheses.whiterose.ac.uk/4482/.

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Machining stability plays a major role in improving machine tool performance and product quality. Uncontrolled chatter phenomenon causes too many defects and problems in manufacturing industry such as increased surface roughness, tool wear and even machine breakdown. In this subject area, great effort has been focused on developing different mechanisms and techniques in an attempt to reduce and control the machining vibrations. Spindle speed variation is one of the common approaches that has received attention recently. Non-uniform tool geometry is an alternative method that could be used for

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19

Turner, Sam. "Titanium milling strategies." Thesis, University of Sheffield, 2009. http://etheses.whiterose.ac.uk/15127/.

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This thesis explores the subject of titanium milling and identifies the need for development of titanium milling strategies to address the key process limitations of chatter and tool wear. These subjects are typically studied in isolation and little work has previously been undertaken on titanium milling dynamics. Titanium is often perceived as difficult to machine as the very properties such as high strength at high temperature and low thermal conductivity that make it an attractive engineering material can cause rapid tool wear and limit process parameters. Titanium alloys are increasingly p

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20

Seemuang, Nopparat. "Non-destructive evaluation and condition monitoring of tool wear." Thesis, University of Sheffield, 2016. http://etheses.whiterose.ac.uk/13392/.

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As tool wear is unavoidable, a tool condition monitoring system is an essential system to prevent machine tool downtime due to unnecessary tool replacement, tool breakage caused by using worn tools, and to reduce part rejections. Currently, multiple indirect sensing signals are commonly fused and used to detect tool wear to enhance the system reliability and generalisation. Many of the recently developed systems uses expensive sensing methods which are seemingly not suitable for real machining. Almost all of these monitoring systems were also developed in a laboratory control environment, resu

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21

Chu, Wenqiang. "Investigation of torque characteristics of permanent magnet and electrically excited machines." Thesis, University of Sheffield, 2013. http://etheses.whiterose.ac.uk/3978/.

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This thesis is focused on the comparative investigation on the torque characteristics, both average torque and torque ripple, of permanent magnet (PM) and electrically excited (EE) machines for direct drive applications, which require both high torque density and low torque ripple. The effectiveness of two of the most widely used methods, i.e., rotor shaping and skewing, for torque ripple reduction in EE and PM machines is investigated. It is found that the effectiveness of skewing largely depends on the axial variation of torque ripple phase but less on its magnitude under skewing. It is furt

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22

Oguoma, Onywuchi N. "Analysis and procedures for design of diaphragm chucks." Thesis, Loughborough University, 1985. https://dspace.lboro.ac.uk/2134/25513.

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In modern automated manufacturing systems, there is a need for work-holding devices that provide for precision, accuracy, reliability, flexibility and remoteness of control. One of such devices is the diaphragm chuck which utilizes the strain energy of its varying thickness diaphragm plate for gripping action. The jaw-carrying diaphragm plate is deflected by a thrust load, and the jaws are bored or ground to the nominal diameter of the workpiece. Gripping action occurs when the workpiece is inserted into the jaws and the thrust is relieved. Designers and manufacturers of diaphragm chucks have

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23

Pruti, Faruk. "Development of composite grinding wheels for hard and soft metals." Thesis, University of East London, 2012. http://roar.uel.ac.uk/1440/.

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This research investigates the performance of grinding wheel in terms of its internal granular particles and their effect on the surface finish for both soft and hard metals subjected to both dry and wet conditions of use. The study considers the properties of materials of construction including hardness of the granular particles and their size and distributions that affects the grinding wheel efficiency in abrading of soft and hard metal surfaces. Furthermore, in order to improve grinding performance, the mechanism of clogging the cutting surface of the grinding wheel as a function of for exa

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24

He, Yinfeng. "An investigation of inkjet printing of polycaprolactone based inks." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/33326/.

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Traditional manufacturing methods like moulding or subtractive manufacturing place significant limitations on structures which could be manufactured in a single process. These limitations can now be overcome by a new manufacturing technology—Additive Manufacturing (AM), which provides the users much more freedom to design and produce structures in one piece. Additive manufacturing refers to a range of processing technologies, which fabricate 3D parts by adding successive layers. With this technology, complex 3D structures can be produced directly following the production of a geometric data. A

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25

Jones, Jason Blair. "Investigation of laser printing for 3D printing and additive manufacturing." Thesis, University of Warwick, 2013. http://wrap.warwick.ac.uk/59733/.

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Additive Manufacturing (AM), popularly called “3D printing,” has benefited from many two-dimensional (2D) printing technology developments, but has yet to fully exploit the potential of digital printing techniques. The very essence of AM is accurately forming individual layers and laminating them together. One of the best commercially proven methods for forming complex powder layers is laser printing, which has yet to be used to directly print three-dimensional (3D) objects above the microscale, despite significant endeavour. The core discovery of this PhD is that the electrostatic charge on t

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26

Годун, Давид Вікторович. "Розроблення проекту дільниці механічного цеху для виготовлення стакана СЛ 80-03 з підвищенням параметрів якості поверхневого шару та продуктивності процесів механічної обробки на основі параметричної оптимізації". Thesis, Тернопільський національний технічний університет імені Івана Пулюя, 2014. http://elartu.tntu.edu.ua/handle/123456789/3325.

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Розроблено проект дільниці механічного цеху для виготовлення стакан СЛ80-03 здійснено удосконалення базового технологічного процесу, а також зроблено дослідження технологічного процесу виготовлення гвинтових заготовок методом вальцювання.

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Нефьодов, Володимир Васильович. "Розроблення проекту дільниці механічного цеху для виготовлення корпуса аге 501.124.060 з дослідженням зносостійкості робочих поверхонь різальних інструментів". Thesis, Тернопільський національний технічний університет імені Івана Пулюя, 2017. http://elartu.tntu.edu.ua/handle/123456789/19062.

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Роботу виконано на кафедрі технології машинобудування Тернопільського національного технічного університету імені Івана Пулюя Міністерства освіти і науки України<br>Нефьодов В.В. Розроблення проекту дільниці механічного цеху для виготовлення корпуса АГЕ 501.124.060 з дослідженням зносостійкості робочих поверхонь різальних інструментів. 8.05050201 «Технології машинобудування». – Тернопільський національний технічний університет імені Івана Пулюя. – Тернопіль, 2017. В дипломній роботі виконано розроблення проекту дільниці механічного цеху для виготовлення корпуса АГЕ 501.124.060 та дослідженням

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Safaieh, Mehrdad. "STEP-NC enabled cross-technology interoperability for CNC machining." Thesis, University of Bath, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.619222.

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In recent decades there has been a rapid development of technology in manufacturing industries, in particular through the increasing use of ever more powerful and sophisticated Computer Numerical Controlled (CNC) machines to manufacture complex parts. These machines are supported by a chain of computer based software solutions amongst which manufacturing information is exchanged. With the need for information exchange, interoperability between various computer-aided systems (CAx) has become an important research area. In CNC part programing, innovations by various hardware manufacturers and th

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Костик, Олег Васильович. "Розроблення проекту дільниці механічного цеху для виготовлення корпуса дроселя 721.010.001 з підвищенням технічного рівня конструкторсько-технологічної підготовки виробництва на основі врахування функціональних особливостей використовуваного обладнання". Thesis, Тернопільський національний технічний університет імені Івана Пулюя, 2014. http://elartu.tntu.edu.ua/handle/123456789/3326.

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Розроблено проект дільниці механічного цеху для виготовлення корпуса дроселя 721.010.001 здійснено удосконалення базового технологічного процесу, а також запропоновано методи підвищення ефективності освоєння виробництва нової продукції.

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Пасемко, Василь Іванович. "Розроблення проекту дільниці механічного цеху для виготовлення корпуса ПСК031.034.001 з підвищенням опору контактному викришуванню поверхонь деталей статико-імпульсною обробкою з гетерогенним деформаційним зміцненням". Thesis, Тернопільський національний технічний університет імені Івана Пулюя, 2014. http://elartu.tntu.edu.ua/handle/123456789/3328.

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Розроблено проект дільниці механічного цеху для виготовлення корпуса ПСК031.034.001 здійснено удосконалення базового технологічного процесу, а також зроблено дослідження процесу статико-імпульсного зміцнення

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Opoz, Tahsin Tecelli. "Investigation of material removal mechanism in grinding : a single grit approach." Thesis, University of Huddersfield, 2012. http://eprints.hud.ac.uk/id/eprint/17818/.

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This thesis has investigated material removal mechanisms in grinding by considering single grit workpiece interaction. The investigation was performed both experimentally and using finite element simulation. Rubbing, ploughing and cutting mechanisms occurring during the grinding process were studied at the micro scale. Due to its nature the rubbing phase occurs in a very narrow region of grit-workpiece engagement and is difficult to examine under a microscope and so was investigated using FEM simulation. The ploughing mechanism was thoroughly investigated using both experimental tests and FEM

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Parkinson, Simon. "Construction of machine tool calibration plans using domain-independent automated planning." Thesis, University of Huddersfield, 2014. http://eprints.hud.ac.uk/id/eprint/20329/.

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The evolution in precision manufacturing has resulted in the requirement to produce and maintain more accurate machine tools. This new requirement coupled with desire to reduce machine tool downtime places emphasis on the calibration procedure during which the machine's capabilities are assessed. Machine tool downtime can be as much as $120 per hour and is significant for manufacturers because the machine will be unavailable for manufacturing use, therefore wasting the manufacturer's time and potentially increasing lead-times for clients. In addition to machine tool downtime, the uncertainty o

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Lozano, Torrubia Pablo. "Stochastic modelling of abrasive waterjet controlled-depth machining." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/35119/.

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Abrasive micro-waterjet processing is a non-conventional machining method that can be used to manufacture complex shapes in difficult-to-cut materials. The constant development of new materials with enhanced properties has sparked the interest in alternative machining technologies. Among these non-conventional machining methods, Abrasive Waterjet Machining is regarded as a flexible technology with potential to cope with a wide range of materials and applications. The use of a soft tool (i.e. the jet) is very advantageous because it makes it possible to perform different operations without modi

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Griffin, James. "Pattern recognition of micro and macro grinding phenomenon with a generic strategy to machine process monitoring." Thesis, University of Nottingham, 2008. http://eprints.nottingham.ac.uk/10487/.

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Abstract In modern manufacturing environments waste is an issue of great importance. Specifically the research in this thesis looks at issues in establishing the initial steps to gain a generic process monitoring system that ensures that grinding is both optimised but not the determent where costly malfunctions mean the scrapping and re-melting of expensive quality intensive materials. The research conducted in this thesis investigates the process of cutting, ploughing and rubbing during single grit scratch tests. These investigations meant the correlation between physical material removal phe

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Flynn, Joseph. "The identification of geometric errors in five-axis machine tools using the telescoping magnetic ballbar." Thesis, University of Bath, 2016. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.698982.

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To maximise productivity and reduce scrap in high-value, low-volume production, five-axis machine tool (5A-MT) motion accuracy must be verified quickly and reliably. Numerous metrology instruments have been developed to measure errors arising from geometric imperfections within and between machine tool axes (amongst other sources). One example is the TMBB, which is becoming an increasingly popular instrument to measure both linear and rotary axis errors. This research proposes new TMBB measurement technique to rapidly, accurately and reliably measure all position-independent rotary axis errors

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Mukhtar, Nur Farah Hafizah. "Characterisation of tip wear during AFM probe-based nanomachining." Thesis, Cardiff University, 2017. http://orca.cf.ac.uk/99664/.

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Atomic force microscope (AFM) probe-based mechanical nanomachining has been considered as a potential low-cost alternative method for the generation of nanoscale features on the surface of components and devices. Therefore, it is important to understand the factors that influence the tip wear of AFM probes in order to achieve reliable and accurate machining operations when implementing this process. Despite the fact that the basic applicability of AFM probe-based machining has been demonstrated for many years, studies focussing on the wear of the tips as a function of processing conditions are

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Al-Musawi, Raheem. "Theoretical and experimental investigations about the AFM tip-based nanomachining process." Thesis, Cardiff University, 2016. http://orca.cf.ac.uk/99795/.

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In the last two decades, technological progress towards the miniaturisation of products and components has increased significantly. This trend has also been driven by demands for the manufacture of devices with functional features on the nanoscale. One of the nanofabrication processes, which has been proposed by researchers to meet such needs, relies on the mechanical machining of the surface of a workpiece with the tip of an atomic force microscope (AFM) probe. In this case, the AFM probe is utilised as a cutting tool as it enables the direct contact between its sharp tip, which is fixed on a

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Peña, del Olmo Magali Noemi. "Additive manufacturing of non plastic porcelain material by direct writing and freeze casting." Thesis, De Montfort University, 2011. http://hdl.handle.net/2086/5620.

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Two direct consolidation methods usually used for advanced ceramics have been combined in this project in order to develop a novel fabrication route for traditional ceramics. Specifically the method used is based on the Additive Manufacturing extrusion process using direct writing of high solid loading ceramic pastes and then freeze-casting to solidify the deposited material. This novel fabrication method, for which a patent has been granted, has been christened “Direct Writing Freeze-Casting” (DWFC). Although the DWFC process is the subject of investigation by other researchers for a range of

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Ewad, Heisum Muhamad. "Development of a closed loop control system for vibration assisted grinding." Thesis, Liverpool John Moores University, 2016. http://researchonline.ljmu.ac.uk/4505/.

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Increasing demand for components made of hard and brittle materials such as glasses, steel alloys and advanced ceramics is such that conventional grinding and polishing techniques can no longer meet the requirements of today’s precision manufacturing community. However, it is essential and much needed to undertake such processes based on a scientific approach, i.e. the process to be quantitatively controlled and optimized rather than carried out in a trial-and-error manner. Vibration assisted machining been has demonstrated to reduce the amount of forces, pattern definition on a finished surfa

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Іванків, Андрій Володимирович. "Дослідження адаптивної системи керування режимами електропостачання ВАТ «Текстерно»". Thesis, Тернопільський національний технічний університет імені Івана Пулюя, 2017. http://elartu.tntu.edu.ua/handle/123456789/19103.

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У дипломній роботі розглянута актуальність впровадження програмного забезпечення і адаптивної системи управління, що дозволяє зменшити втрати енергії, витрати на споживання і генерацію реактивної потужності та підтриму¬вати постійний рівень у споживачів. Розроблене програмне забезпечення дозволяє вирішити комплекс проблем, пов'язаних з оптимальним розподілом реактивної потужності по мережі. Запропонована адаптивна система управління дозволяє здійснювати постійний контроль над навантаженнями підстанцій і конфігурацією мережі, оперативно реагувати на будь-які зміни і проводити точний розрахуно

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Гоцуляк, Юрій Миколайович. "Підвищення надійності електропостачання сільськосподарських споживачів з вибором оптимальної схеми розподільної мережі". Thesis, Тернопільський національний технічний університет імені Івана Пулюя, 2017. http://elartu.tntu.edu.ua/handle/123456789/19070.

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У дипломній роботі розглянута актуальність і перспективність проекту-вання систем електропостачання невеликих районів і споживачів на селі. Проведено аналітичне дослідження та обгрунтована доцільність розробки засобів підвищення надійності електропостачання сільськогосподарських споживачів. Вибрано оптимальний варіант мережі електропостачання споживачів від-повідно до техніко-економіч¬ного розрахунку схем та за найменшими річними витратами. Розроблено пристрій для визначення місць пошкодження повітряних ліній електропередач.

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Гудзь, Володимир-Максим Олегович. "Аналіз засобів компенсації реактивної потужності в системі електропостачання інструментального цеху механічного заводу". Thesis, Тернопільський національний технічний університет імені Івана Пулюя, 2017. http://elartu.tntu.edu.ua/handle/123456789/19076.

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У дипломній роботі проведено огляд та виконаний аналіз засобів компен¬сації реактивної потужності, розглянуто алгоритми управління і функціонування систем управління. Показано, що конденсаторні батареї мають переваги над синхронними двигунами, тому вони набули найбільшої популярності. Останніми роками у зв'язку із значним прогресом у створенні швидкодіючих силових напівпровідникових приладів з’явилася тенденція до створення досконаліших структур перетворювачів змінного струму. Зокрема, для керування рівнем реактивної потужності.

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Коваль, Василь Ярославович. "Проект дільниці ремонтного цеху для діагностики, технічного обслуговуваннята ремонту амортизаторів 2110-2905003, 2110-2915004 автомобілів ВАЗ-2112 з дослідженням робочих параметрів амортизаторів". Thesis, Тернопільський національний технічний університет імені Івана Пулюя, 2016. http://elartu.tntu.edu.ua/handle/123456789/19336.

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Захист відбудеться 24 лютого 2016 р. о 9.00 годині на засіданні екзаменаційної комісії №1 у тернопільському національному технічному університеті імені Івана Пулюя за адресою: 46001, м. Тернопіль, вул. Текстильна 28, навчальний корпус №9, ауд. 103<br>При виконанні дипломної роботи розроблено проект дільниці ремонтного цеху для діагностики , технічного обслуговування та ремонту амортизаторів 2110-2905003 автомобілів ВАЗ-2112. Розглянуто питання з удосконалення ТО ТП і діагностики амортизаторів. Подано розрахунок виробничої програми по ТО і ремонту , вибір коригування нормативів, визначення кі

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Massam, Mark. "Thermal characteristics of grinding fluids." Thesis, Cranfield University, 2008. http://dspace.lib.cranfield.ac.uk/handle/1826/7615.

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High Efficiency Deep Grinding (HEDG) combines high depths of cut, high grinding wheel speeds with high work piece feed rates to deliver a very high stock removal process that can produce components free of surface damage. High contact temperatures are a characteristic of the process and this produces a mass of hot grinding sparks being ejected from the grinding zone. Neat oil cutting fluids are typically used in HEDG due to their excellent lubricity, but the high grinding wheel speeds employed leads to high levels of highly volatile cutting fluid mist in the machine canopy. This mist can mix w

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Комарянський, Михайло Володимирович. "Розроблення проекту дільниці механічного цеху для виготовлення корпуса 172.001 з дослідженням та аналізом засобами комп’ютерних технологій системи активного контролю при шліфуванні". Master's thesis, Тернопільський національний технічний університет імені Івана Пулюя, 2018. http://elartu.tntu.edu.ua/handle/lib/23358.

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Комарянський Михайло. Розроблення проекту дільниці механічного цеху для виготовлення корпуса 172.001 з дослідженням та аналізом засобами комп’ютерних технологій системи активного контролю при шліфуванні. 131 «Прикладна механіка». – Тернопільський національний технічний університет імені Івана Пулюя. – Тернопіль, 2018. В дипломній роботі виконано розроблення проекту дільниці механічного цеху для виготовлення корпуса, проведено дослідження та аналіз системи активного контролю при шліфуванні.<br>Komaryanskyi M. Project development of engineering workshop line for manufacturing 172.001 body struc

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Mulyadi, Ismet. "Improving the performance of minimum quantity lubrication in high speed milling and environmental performance analysis." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/improving-the-performance-of-minimum-quantity-lubrication-in-high-speed-milling-and-environmental-performance-analysis(225a6b11-f4e6-44be-b7e5-3296f9cb87b9).html.

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Manufacturing by mechanical machining has historically benefited from the use of cutting fluid. Cutting fluids help to reduce temperature, friction, flush away chips, and hence prolong tool life and improve machining performance. However, uncontrolled use of cutting fluid raises concern in respect of cost and environmental burden. For these reasons, dry machining is used in conjunction with high speed machining to reduce cycle times and simultaneously deliver a greener process. However, for some workpiece materials full implementation of dry machining is not economically viable due to the abse

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Shokrani, Chaharsooghi Alborz. "Cryogenic machining of titanium alloy." Thesis, University of Bath, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636532.

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Materials which are both lighter and stronger have faced an increased demand over the past decades to fulfil the requirements across a range of industrial applications. More specifically, demands for titanium alloys have increased significantly due to its high strength to weight ratio which is particularly attractive for increasing fuel efficiency in aircrafts and cars and is also used in biomedical implants. Despite the increasing demand for titanium made products, machining titanium alloys remains a significant challenge. High material strength and hardness lead to excessive heat generation

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Abuaniza, Ayman. "Thermal parameter optimisation for accurate finite element based on simulation of machine tools." Thesis, University of Huddersfield, 2015. http://eprints.hud.ac.uk/id/eprint/28318/.

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The need for high-speed/high-precision machine tools is swiftly increasing in response to the growth of production technology that necessitates high- recision parts and high productivity. The influence of thermally induced errors in machine tools can have a much greater influence on the dimensional tolerances of the final products produced as compared to geometric and cutting force errors. Therefore, to maintain high accuracy of machine tool, it requires an accurate method of thermal error control or compensation using a detailed model. The thermal errors of machine tools are induced by the pr

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49

Кицкай, Назар Ігорович, та Nazar Kytskai. "Вдосконалення технологічного процесу механічного оброблення корпуса редуктора КС6-09.102". Bachelor's thesis, Тернопільський національний технічний університет імені Івана Пулюя, 2021. http://elartu.tntu.edu.ua/handle/lib/35370.

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В кваліфікаційній роботі вдосконалено технологічний процес механічного оброблення корпуса редуктора КС6-09.102.<br>Improvement of the reduction gear case КС6-09.102 machining production process in this graduation thesis<br>ВСТУП ...6<br>1 ЗАГАЛЬНО-ТЕХНІЧНА ЧАСТИНА ...7<br>1.1 Службове призначення та характеристики об’єкту виробництва. Аналіз технічних вимог на виріб ...7<br>1.2 Аналіз базового технологічного процесу ...10<br>1.3 Висновки та постановка задач на кваліфікаційну роботу ...11<br>2. ТЕХНОЛОГІЧНА ЧАСТИНА ...12<br>2.1 Характеристика типу та організаційної форми виробництва ...12<br>2.

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Chamberlain, Matthew. "Novel control of a high performance rotary wood planing machine." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/12261.

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Rotary planing, and moulding, machining operations have been employed within the woodworking industry for a number of years. Due to the rotational nature of the machining process, cuttermarks, in the form of waves, are created on the machined timber surface. It is the nature of these cuttermarks that determine the surface quality of the machined timber. It has been established that cutting tool inaccuracies and vibrations are a prime factor in the form of the cuttermarks on the timber surface. A principal aim of this thesis is to create a control architecture that is suitable for the adaptive

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