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Information × Registration Number 0218U000164, 0116U003614 , R & D reports Title Design and investigation of technological processes and tools for manufacturing by forging of long hollow workpieces. popup.stage_title Head Markov Oleg Evgenjevich, Доктор технічних наук Registration Date 23-01-2018 Organization Donbass State Engineering Academy popup.description2 Object of research: technological processes and tool for forging of long hollow workpieces. Methods of research: theoretical study of stress-strain state of metal carried out by finite element method; experimental verification of the reliability degree of determining stress-strain state was carried out based on the method of coordinate grids. The aim of research: to improve the quality, to expand the technological possibilities, to reduce the cost of finished steel products by the implementation of technological schemes with using of forging processes. Theoretical and practical results: a technique and technological process recommendations for forging have been developed. These recommendations are to determine the diameter of the hole in the workpiece before forging without mandrel, depending on the diameter of the hole in the workpiece and the degree of deformation. The recommendation of the tool geometry for accomplishing the blank forging without a mandrel was confirmed under industrial conditions. The forging without a mandrel was produced with cut-out dies with an angle of 115 ° and cut bevel angle of 10 °. Novelty: development on the basis of complex theoretical and experimental research the scientific bases of new resource-saving technological processes of forging, rolling and flattening schemes with using of forging processes. The effectiveness of the implementation: increasing of mechanical properties by 7 ... 10% and reduction of metal costs by 20 ... 25%. Field of applications: metallurgical industry, engineering. Product Description popup.authors Абхарі Пейман Бахменович Водопьянова Ганна Олександрівна Грибков Едуард Петрович Злигорєв Віталій Миколайович Косілов Максим Сергійович Лисенко Олена Миколаївна Марков Олег Євгенійович Маркова Марина Олександрівна Нагієв Микола Інтігамович Орлік Катерина Василівна Періг Олександр Вікторович Різак Павло Іванович Рагуліна Надія Вікторівна Руденко Наталія Олександрівна Шевченко Наталія Геннадіївна Ячмінь Юлія Олегівна popup.nrat_date 2020-04-02 Close