title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¾ÑÐµÑÑÐ° ÑÑÐ°Ð¼Ð¿Ð¾Ð²ÐºÐ¸ ÐºÑÑÐ¿Ð½Ð¾Ð³Ð°Ð±Ð°ÑÐ¸ÑÐ½ÑÑ Ð·Ð°Ð³Ð¾ÑÐ¾Ð²Ð¾Ðº ÑÑÑÐ±Ð¸Ð½Ð½ÑÑ Ð»Ð¾Ð¿Ð°ÑÐ¾Ðº
title: Ð½Ð°ÑÑÐ½ÑÐ¹ Ð´Ð¾ÐºÐ»Ð°Ð´
titleType: Subtitle
title: Study of the process of stamping large-sized blanks of turbine blades
Creators: name: Ð¡Ð¼Ð¸ÑÐ½Ð¾Ð², ÐÐ°ÐºÑÐ¸Ð¼
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð¢ÑÑÐ±Ð¸Ð½Ð½ÑÐµ Ð»Ð¾Ð¿Ð°ÑÐºÐ¸
Ð¡ÑÐ°Ð»Ñ Ð¶Ð°ÑÐ¾Ð¿ÑÐ¾ÑÐ½Ð°Ñ
Ð¢Ð¸ÑÐ°Ð½Ð¾Ð²ÑÐµ ÑÐ¿Ð»Ð°Ð²Ñ
Ð¨ÑÐ°Ð¼Ð¿Ð¾Ð²ÐºÐ° Ð¼ÐµÑÐ°Ð»Ð»Ð¾Ð²
ÐÐ°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
ÐÐµÑÐ°Ð»Ð»Ñ
ÐÐ¾Ð»Ð¾ÑÑ ÑÑÐ°Ð¼Ð¿Ð¾Ð²Ð¾ÑÐ½ÑÐµ

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ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¿Ð¾ÐºÐ°Ð·Ð°Ð»Ð¾, ÑÑÐ¾ Ð´Ð°Ð½Ð½ÑÑ Ð»Ð¾Ð¿Ð°ÑÐºÑ Ð¼Ð¾Ð¶Ð½Ð¾ Ð¸Ð·Ð³Ð¾ÑÐ¾Ð²Ð¸ÑÑ Ð½Ð° Ð¸Ð¼ÐµÑÑÐµÐ¼ÑÑ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¸ â ÑÑÐ°Ð¼Ð¿Ð¾Ð²Ð¾ÑÐ½ÑÐ¹ Ð¼Ð¾Ð»Ð¾Ñ 25 Ñ Ð·Ð° 1 Ð¿ÐµÑÐµÑÐ¾Ð´. ÐÑÐ¿Ð¾Ð»Ð½ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¿ÑÐ¾ÑÐµÑÑÐ° ÐºÐ¾ÑÐ¾Ð±Ð»ÐµÐ½Ð¸Ñ ÑÑÑÐ±Ð¸Ð½Ð½Ð¾Ð¹ Ð»Ð¾Ð¿Ð°ÑÐºÐ¸ Ð¸Ð· ÑÐ¸ÑÐ°Ð½Ð¾Ð²Ð¾Ð³Ð¾ ÑÐ¿Ð»Ð°Ð²Ð° ÐÐ¢6. ÐÑÑÐ²Ð»ÐµÐ½Ð¾, ÑÑÐ¾ Ð¿ÑÐ¸ÑÑÑÑÑÐ²ÑÐµÑ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÑ ÑÐ¼ÐµÐ½ÑÑÐµÐ½Ð¸Ñ Ð¿ÑÐ¸Ð¿ÑÑÐºÐ° Ð½Ð° Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÑÑ Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÑ, ÑÑÐ¾ Ð·Ð½Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾ ÑÐ½Ð¸Ð·Ð¸Ñ Ð·Ð°ÑÑÐ°ÑÑ Ð½Ð° Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ð¾ Ð»Ð¾Ð¿Ð°ÑÐ¾Ðº Ð¸Ð· ÑÐ¿Ð»Ð°Ð²Ð° ÐÐ¢6. ÐÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ñ Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ñ ÑÐ¸ÑÐ°Ð½Ð¾Ð²Ð¾Ð³Ð¾ ÑÐ¿Ð»Ð°Ð²Ð° ÐÐ¢6 Ð¿ÑÐ¸ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÑÐµÑÐ¼Ð¾Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ°Ñ Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ¸. ÐÑÐµÐ²Ð°Ð»Ð¸ÑÑÑÑÐµÐµ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ Ð½Ð° Ð¿ÑÐ¾ÑÐµÑÑÑ ÑÐµÐºÑÐ¸ÑÑÐ°Ð»Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¾ÐºÐ°Ð·ÑÐ²Ð°ÐµÑ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ° Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸. Ð¡ Ð¿Ð¾Ð½Ð¸Ð¶ÐµÐ½Ð¸ÐµÐ¼ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÑ Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ñ Ð¾Ñ 938Â°Ð¡ Ð´Ð¾ 858Â°Ð¡ ÐºÐ¾Ð»Ð¸ÑÐµÑÑÐ²Ð¾ ÑÐµÐºÑÐ¸ÑÑÐ°Ð»Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ð½ÑÑ Ð·ÑÑÐµÐ½, Ð°, ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÐµÐ½Ð½Ð¾, Ð¸ ÑÑÐµÐ¿ÐµÐ½Ñ ÑÐµÐºÑÐ¸ÑÑÐ°Ð»Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸, ÑÐ¼ÐµÐ½ÑÑÐ°ÐµÑÑÑ. ÐÑÐ¸ ÑÑÐ¾Ð¼ ÐºÐ°ÐºÐ¾Ð³Ð¾-Ð»Ð¸Ð±Ð¾ Ð·Ð½Ð°ÑÐ¸Ð¼Ð¾Ð³Ð¾ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ ÑÐºÐ¾ÑÐ¾ÑÑÐ¸ Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð½Ðµ Ð²ÑÑÐ²Ð»ÐµÐ½Ð¾.
description: The purpose of this work is to study the technologies for manufacturing two types of rotor blades for steam turbines for nuclear power plants, namely, a 1760 mm long rotor blade made of 15Ð¥11ÐÐ¤-Ð¨ steel and a 1200 mm long rotor blade made of ÐÐ¢6 titanium alloy, taking into account the characteristics of the equipment available in production. Mathematical modeling of the process of forging a large-sized blade with a forging length of 2100 mm from steel 15Ð¥11ÐÐ¤-Ð¨ on a 25 t hammer was carried out. The possibility of equipment for the manufacture of a blade blank was confirmed, the technology of large-sized blade forging was confirmed. Compression tests of 15Ð¥11ÐÐ¤-Ð¨ steel were carried out at various thermal deformation parameters of the stamping process. Using simulation, it was revealed that the magnitude of plastic deformation does not affect the parameters of the microstructure. The developed stamping technology was released for production. To ensure the required metallurgical quality of the starting material and stamped blanks, the following have been developed and issued: technical requirements for a billet obtained by forging, technical requirements for hot-rolled bars and technical requirements for stamped blanks of blades made of 15Ð¥11ÐÐ¤-Ð¨ steel. Experimental stamping of blade blanks from long products and forged bars was carried out. Analysis of the results of the study of stamped blanks made from various initial blanks indicates stable mechanical properties over the section and compliance of the quality of the metal of stamped blanks of blades with technical requirements. A scientifically substantiated choice of the type of initial billet was carried out - long products 15Ð¥11ÐÐ¤-Ð¨. Production measurements of the number of hammer blows, the value of under-stamping of blade blanks at each stage during serial production were carried out. A method for determining the effective action of a hammer blow has been developed. As a result of the study, data were obtained on the efficiency of a hammer blow of 25 tons, which can be used in the design of new stamping processes for large-sized parts. Mathematical modeling of punching of a blade made of titanium alloy ÐÐ¢6 has been carried out. The number of hammer blows required to deform the blade has been determined. The simulation showed that this blade can be manufactured using the existing equipment - a stamping hammer 25 tons per 1 pass. The analysis of the warping process of a turbine blade made of ÐÐ¢6 titanium alloy is carried out. It was revealed that there is a possibility of reducing the allowance for machining, which will significantly reduce the cost of producing blades from ÐÐ¢6 alloy. Tests of titanium alloy ÐÐ¢6 were carried out at various thermal-deformation processing parameters. The prevailing effect on the recrystallization processes is exerted by the deformation temperature. With a decrease in the test temperature from 938 Â° C to 858 Â° C of recrystallized grains, and, accordingly, the degree of recrystallization decreases. At the same time, no significant influence of the strain rate was revealed.