Application Features of New Structural Steel 20KhN3MA for Large-Sized Case-Hardening Gears
The paper gives an analysis and an assessment of the applicability of the most well-known grades of steels used for making large-sized case-hardening gears. It was found that increasing the hardness of the cemented tooth surface with simultaneous provision and preservation of its specified direction...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
National Academy of Sciences of Belarus, State Scientific Institution “The Joint Institute of Mechanical Engineering"
2018-06-01
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| Series: | Механика машин, механизмов и материалов |
| Subjects: | |
| Online Access: | http://mmmm.by/en/readers-en/archive-room-en?layout=edit&id=1371 |
| Summary: | The paper gives an analysis and an assessment of the applicability of the most well-known grades of steels used for making large-sized case-hardening gears. It was found that increasing the hardness of the cemented tooth surface with simultaneous provision and preservation of its specified direction is a complex and important task in the creation of case-hardening gears. The features of the change in the dimensions of parts are studied depending on the degree of their nickel alloying. The use of a new material – steel 20KhN3MA – is proposed, which allows us to increase the strength, accuracy, reliability and life of large-sized gears. Of particular interest is the steel 20KhN3MA, as it is poorly deformed during technological alterations and in operation, it is used for large-sized gears of high-power reduction gear systems and for non-grinding cogwheels, first of all with a circular tooth. The material presented in this paper is of interest and can be useful for scientists and engineering services of the engineering industry. |
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| ISSN: | 1995-0470 2518-1475 |