Manufacture and Performance of Medium-Hardness Gears : Load-Carrying Capacity of Gears in the Combination of Ground and Hobbed Gears
Autor: | Ariura Yasutsune, Deng Gang, Nakanishi Tsutomu |
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Rok vydání: | 1998 |
Předmět: |
Engineering
business.product_category Spiral bevel gear business.industry Mechanical Engineering Metallurgy Mechanical engineering Tooth surface Surface finish Durability Industrial and Manufacturing Engineering InformationSystems_GENERAL Rake angle Non-circular gear Mechanics of Materials Bevel gear business Pinion |
Zdroj: | TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C. 64:3128-3133 |
ISSN: | 1884-8354 0387-5024 |
DOI: | 10.1299/kikaic.64.3128 |
Popis: | The load-carrying capacity of medium hardness gears was investigated from the viewpoint of gear-manufacturing methods (hardness, gear accuracy and tooth surface roughness). First, the gear accuracies and tooth surface roughnesses of ground gears, hobbed gears and finish hobbed gears were examined in detail. From the test results, it is found that the new finish-hob, which has many gashes and a positive rake angle, is useful for the improvement of gear accuracy and tooth surface roughness. Secondly, the surface durability of gear pairs with a combination of ground gear and hobbed gear (or finish hobbed gear) was investigated by using a power circulating type gear testing machine. The test results reveal that the pinion (ground gear) should be substantially harder than the gear (mating hobbed gear or finish hobbed gear) in order to obtain higher load-carrying capacity of medium-hardness gears. And, it is clear that the finish hobbed gears have many advantages in manufacturing and performance of hardened and tempered gears. |
Databáze: | OpenAIRE |
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