Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Sergei G. Sandomirski"'
Publikováno v:
Механика машин, механизмов и материалов, Iss 1(62), Pp 5-10 (2023)
The reliability and durability of gears in most cases depend on the contact endurance of the material of the parts. Analysis of the stress state of surface-hardened gears has shown that under contact loading, the source of primary damage can be locat
Externí odkaz:
https://doaj.org/article/ce576124d61848f4a3f826c4bc4d66b9
Publikováno v:
Механика машин, механизмов и материалов, Iss 3(60), Pp 61-67 (2022)
The methods are considered for determining the effective thickness of the hardened layer of metal parts listed in the standards STB 2307-2013 and STB ISO 18203-2019. The ambiguity of interpretation of the concept of effective thickness hэф of the h
Externí odkaz:
https://doaj.org/article/97320edca303449286a0ecf77034992b
Publikováno v:
Механика машин, механизмов и материалов, Iss 3(56), Pp 52-60 (2021)
The stress state of the surface layer in the contact zone of the mating teeth of cylindrical gears is considered. It is shown that under contact loading, the stress state of the surface layer is inhomogeneous and changes with the distance from the su
Externí odkaz:
https://doaj.org/article/00c66b9015144d0896a70173262d4b1f
Publikováno v:
Механика машин, механизмов и материалов, Iss 2(55), Pp 42-53 (2021)
The physical foundations and advantages of ring rolling are described. The materials science and technological processes of manufacture of products with its use are generalized. An analysis of the equipment of an automated ring rolling line was carri
Externí odkaz:
https://doaj.org/article/a833ab3bada847068d0f46e25f1a9e15
Publikováno v:
Механика машин, механизмов и материалов, Iss 4(53), Pp 52-59 (2020)
In the world practice of manufacturing gears for automotive equipment, a search is being made for new, more effective steel grades and ways to realize their advantages, achieved both during smelting and during further thermal, deformation and chemica
Externí odkaz:
https://doaj.org/article/01bfb6a338c9401eb2ab68140837cb19
Publikováno v:
Механика машин, механизмов и материалов, Iss 3(52), Pp 34-41 (2020)
The physics fundamentals and advantages of ring-rolling the products are described. The analysis of production volumes of the products by ring-rolling in Europe is carried out. The definition of rings of low rigidity is given. The problems of using o
Externí odkaz:
https://doaj.org/article/3dd1d1836fa44f51a5cdf57aa7a94c19
Publikováno v:
Механика машин, механизмов и материалов, Iss 3(52), Pp 71-77 (2020)
Highly stressed transmission parts of energy-saturated machines are made of steels subjected to carburization and subsequent hardening. A low-carbon steel product forms a strong, high-carbon surface layer with a soft and viscous core. An important pa
Externí odkaz:
https://doaj.org/article/7ca094fa034447e6807cb795aeeedfc1
Publikováno v:
Механика машин, механизмов и материалов, Iss 4(49), Pp 61-69 (2019)
Examples of the main types of destruction of highly loaded gears in transmissions of automotive and tractor vehicles are given. Their causes are analyzed. It is established that the criterion for the performance of highly stressed gears of transmissi
Externí odkaz:
https://doaj.org/article/2371ad8363ef4b01905e8ac8576a5e2d
Publikováno v:
Механика машин, механизмов и материалов, Iss 3(48), Pp 51-57 (2019)
The possibility of using standard ASTM A 255–07 is shown to assess the hardenability of structural steels manufactured in accordance with GOST 4543–2016. Inaccuracies of the standard are identified with respect to the correctness of correlation d
Externí odkaz:
https://doaj.org/article/d3d371ccb2794b76a5671a1801c20fa4
Publikováno v:
Механика машин, механизмов и материалов, Iss 2(39), Pp 79-83 (2017)
The analysis of the range of changes in the strength σВ of spheroidal graphite cast iron (SGCI) is made. An analytical description of the range of variation σВ as a function for Brinell hardness HB is developed. It is shown that graphite inclusio
Externí odkaz:
https://doaj.org/article/bc6e400d0102432494e9215c4281cb03