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Документ Закономірності формування структурних та механічних властивостей сплава системи Zr-Nb в умовах інтенсивних пластичних деформацій(НТУ "ХПІ", 2013) Злочевська, Н. К.The regularities of formation of the structural properties were determined by deformation in isothermal conditions. The relationship between deformation intensity, structure of material and his mechanical properties was established on the base of experimental forming by the method of helical forging of workpieces, on the base of finite element modeling and metallographic investigation. It was grounded that the plasticity increases at the cost of the refinement of structure components of material.Документ Исследование деформаций металла в местах изгиба при осадке гнутых профилей замкнутого сечения(НТУ "ХПИ", 2013) Забара, Александр СергеевичIn article of deformations in the metal bends with draft tube blank by the finite element method. The analysis of the various schemes of formation. It is concluded that the possibility of modeling of rainfall harvesting, using the finite element method. Set the most appropriate specific conditions and tasks of shaping the way the scheme.Документ Исследование свойств регенерируемых песков(НТУ "ХПИ", 2013) Евтушенко, Наталья СергеевнаThe article investigated the рhysicomechanical properties of regenerated sand for preparation cold-hardening mixes on pitches with oligofurfuriloxysiloxane binding (OFOS) for the manufacture of high-quality castings of ferrous and non-ferrous alloys.Документ Оцінка силового режиму штампування у закритому штампі деталей типу фланців(НТУ "ХПІ", 2013) Євстратов, Віталій Олексійович; Левченко, Володимир МиколайовичThe article is devoted to estimation of power regime of die forging details of burr type in closed impression. Assumed in these work permissions are sufficiently coarse, but even they gives us possibility to estimate the influence of such significant parameters as Dф/D, h/D and α. The analysis is carried out by energetic method.Документ Вихретоковый преобразователь для контроля толщины диэлектрических покрытий на металлоизделиях(НТУ "ХПИ", 2013) Сучков, Григорий Михайлович; Глоба, Светлана Николаевна; Ле, Чи ХиеуThe modification of the compensated eddy current probe (ECP) has been developed, which has a high range of measurement. Experimental researches of ECP performed, which confirmed the promise of its application in the control the thickness of the dielectric coatings on the metal products.Документ Розробка аналітичного методу розрахунку розмірів і форми заготовок для витягування коробчастих виробів(НТУ "ХПІ", 2013) Стеблюк, В. І.; Холявік, О. В.In article provides to the improvement of analytical methods for the calculation of the size and shape of blanks in the drawing box-like parts through the use of the method of building. The experimental and theoretical studies have confirmed the possibility of development of methods for determining the size and shape of pieces in the drawing box-like parts through the use of the method of building and showed a satisfactory correlation between the results obtained experimentally and calculated using the programs developed on the basis of the corresponding models.Документ Пути уменьшения технологической обрези на пилигримовом стане(НТУ "ХПИ", 2013) Стасевский, С. Л.; Угрюмов, Ю. Д.; Гармашов, Д. Ю.; Ксёнз, А. А.The methods of weight reduction pilgrim heads rolling thick- and thin-walled tubes. Industrial research carried out by rolling pipe size 245×10 mm using a special arbor rings providing dokatku pilgergolovki without the cylindrical portion at the rear end of the sleeve. The studies revealed that the savings on a metal sleeve is approximately 30 kg. New technology is being introduced into production for all pipe sizes.Документ Влияние трения на напряженно-деформированное состояние кольца при холодной раскатке(НТУ "ХПИ", 2013) Симсон, Эдуард Альфредович; Scicluna, Steven; Хавин, Валерий Львович; Автономова, Людмила ВладимировнаIt is considered the problem of numerical modeling of cold rolling bearing rings. The resolved equations of mathematical formulation is provided. In the three-dimensional formulation contact problem is solved numerically for different coefficients of friction by using a finite element software DEFORM.Документ Уточненный метод расчета сил, действующих на подшипники рабочих валков станов холодной прокатки тонколистовой стали(НТУ "ХПИ", 2013) Присяжний, А. Г.; Коренко, М. Г.; Сотсков, В. С.The method of calculation of forces, which operate on bearings of workings rollers of the cold rolling mills, is developed in the article. This method allows to determine longevity of bearings of workings rollers taking into account influence of radial and axial forces, the values of which are set depending on all of basic technological factors of process of the cold rolling of thin sheets. Analysis of results of calculation, got on the developed method, expedience of his further application confirms.Документ Пути совершенствования системы управления паровоздушных штамповочных молотов(НТУ "ХПИ", 2013) Попивненко, Л. В.; Ерёмкин, Е. А.; Бочанов, П. А.; Руденко, Н. А.The article deals with a number of advanced schemes of design of system of applied action, which is part of the system of controlling the steam-air stamping hammers . The use of such systems of applied action in modern steam-air stamping hammers would reduce the changeover from one impact to another (from minimum to maximum energy), improve the control accuracy of impact energy and, consequently, the reliability of the most loaded parts and components of hammers .Документ Обоснование выбора оптимальных вариантов механической обработки высокоточных деталей(Национальный технический университет "Харьковский политехнический институт", 2013) Новиков, Федор Васильевич; Рябенков, Игорь Александрович; Крюк, Анатолий ГригорьевичThe article chosen are the best options machining of precision parts hydraulic equipment, including the rational cutting conditions , the characteristics of blade and grinding tools and other processing conditions . The studies found that the use of modern cutting tools and high-speed CNC machines can fundamentally solve the problem of efficiency machining of hydraulic equipment to improve quality, reduce production costs and increasing productivity.Документ Розмірна обробка електричною дугою в штампово-інструментальному виробництві(НТУ "ХПІ", 2013) Носуленко, В. І.; Шмельов, В. М.In article directories are advantages and possibilities of a way of dimensional machining by an electric arc in comparison with a machining method and traditional methods of electric charge machining are resulted. It is presented conditions of use of a way of dimensional machining by an electric arc at manufacturing of the tool for punching and forging. Typical circuit designs of implementation of a way of dimensional machining by an electric arc for manufacturing of working details of dividing press tools, shaped cavities of forging dies are resulted. It is shown that in the conditions of dimensional machining by an electric arc was possibly to produce the working tool of press tools with inoffensive quality accuracy.Документ Совершенствование развития высоких технологий в машиностроении в свете ресурсосбережения и энергоэффективность(НТУ "ХПИ", 2013) Мовшович, А. Я.; Резниченко, Н. К.; Кочергин, Ю. А.The questions of perfection of high-tech are affected in the article, requiring developments and research on the modern stage of development of engineer. A their rational application and way of realization domain is shown in an operating production.Документ Моделирование напряженно-деформированного состояния элементов кассет с неприводными вертикальными валками для чистовых клетей сортовых станов(НТУ "ХПИ", 2013) Медведев, В. С.; Базарова, Е. В.; Чичкан, А. А.; Шпаков, В. А.An analysis of the results of mathematical modeling of the stress-strain state (SSS) of the cassette with the non-driven rolls of the finishing stands 580 600 mill conducted through the use of the apparatus of finite elements method and option deformation model of metal strength. The influence of changes in the diameter of not power-driven vertical rolls and temperature rolled strip on VAT cassettes. It is noted that the strength characteristics of the cartridge design satisfies the condition of strength. However, in real working conditions is not sufficient rigidity cartridge in a horizontal plane, which leads to the crown of the end-product rolling. The result of simulation of VAT elements cassette developed measures for its modernization.Документ Разработка схемы ковки валов с интенсивными пластическими деформациями(НТУ "ХПИ", 2013) Марков, О. Е.The schemes of forging shafts with preliminary of a profiling workpiece by wedge dies were investigated. The non-uniform of strain distribution in the transverse cross-section of the forgings was determined. The forging of the profiling workpiece by flat ensures the uniform strain distribution. The maximal value of the parameter of the stress state scheme was provided at the final forging the profiling workpiece by flat die.Документ Особливості профілювання одно- та трьохзахідних гвинтоподібних труб(НТУ "ХПІ", 2013) Маковей, В. О.; Проценко, П. Ю.The simulation of several options roller spinning one- and three-start helical groove on the tube using a software package Deform 3D was conducted. As profiling elements for obtaining grooves were used rollers and the mandrel. The effect of various parameters (diameter roller Dp, screw pitch of the tube k, groove depth h, frequency of rotation of the mandrel n) on the stress-strain state of the tube was investigated. Proposed technology and design spinning-head to obtain three-start helical groove on the tube.Документ Выглаживание деталей из титановых сплавов с использованием металлосодержащей смазки(НТУ "ХПИ", 2013) Лавриненков, А. Д.The article presents the results of the use of metal-containing lubricants in burnishing process with application of an ultrasound of details made of titanium alloy VT22 and VT23. It was found that their use expands the technological capabilities of the process by controlling the speed and processing effort, and also provides quality parameters of the surface layer.Документ Анализ проблем и постановка задачи исследования процесса выдавливания стержневых конических деталей(НТУ "ХПИ", 2013) Кузьменко, Виктор Иванович; Целуйко, Анастасия ИгоревнаDirect cold extruding is the most effective way to get rod details of conical elements. However, direct extruding accompanied by the emergence several problems whose solution depends on the certain requirements of the process, the die and grease.Документ Экспериментальные исследования режимов кузнечной протяжки заготовок с обкаткой в комбинированных бойках(НТУ "ХПИ", 2013) Кухарь, В. В.; Василевский, О. В.The methodic of experimental research of form-changing and force parameters during stretch forging of billets with rolling to diameter by combined anvils is worked and realized out. The depends of changing of force parameters, geometric characteristics and optimal modes of deformation of billets during stretch forging by rolling in combined anvils with different values of press upsetting and angles of rotation of billets around far axe are determinates.Документ Область применения фрикционной штамповки-вытяжки(НТУ "ХПИ", 2013) Краснокутский, Анатолий Михайлович; Шевченко, Михаил МихайловичThe paper discusses the application of slip-forming exhaust and the role of elastic-friction element (UFE) for the technological possibilities of using the active forces of friction during the production of thin-walled products.