Design of Angular Hypoid Gear. 2nd Report. Gear Cutting and Design Dimensions.

Tool life and the rationality of cutting parameter setting are evaluated directly by cutting force. In order to predict cutting force, and then to optimize the tooth cutting condition for dry high-speed spiral bevel and hypoid gear cutting, this study has established a 2D cutting FEM simulation platform by using DEFORM-2D based on the 2D orthogonal slot milling experiment. Through the platform, using the method of combining single-factor experiment and multi-factor orthogonal experiment, this study has explored the influence of cutting/tool parameters on cutting force in the dry high-speed cutting process of 20CrMnTi spiral bevel and hypoid gear (face hobbing dry cutting process). The results show that from high degree to low degree, the influence of each parameter on cutting force is as follows: feed > cutting speed > relief angle(P.A.side) >blade rake angle, and the influence of the first three parameters is significant, the influence of blade rake angle is not significant; the optimized condition for dry high-speed spiral bevel and hypoid gear cutting is suggested to be: the cutting speed is 300 m/mim, the feed is 0.06 mm/r, the blade rake angle is 14° and the relief angle(P.A.side) is 10°; the cutting edge can be honed moderately, but the hone radius is not bigger than 0.1 mm.

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507 Estimation of Machine Settings in Helixform Hypoid Gear Cutting

The Proceedings of Conference of Hokuriku-Shinetsu Branch ◽

10.1299/jsmehs.2000.37.173 ◽

2000 ◽

Vol 2000.37 (0) ◽

pp. 173-174

Author(s):

Kazumasa KAWASAKI ◽

Hirokazu MICHIWAKI ◽

Hisashi TAMURA

Keyword(s):

Hypoid Gear ◽

Gear Cutting

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How to Obtain the Formal Tooth Bearing Pattern Between Hypoid Gear and the Conjugate Pinion

Volume 6: 8th International Power Transmission and Gearing Conference ◽

10.1115/detc2000/ptg-14396 ◽

2000 ◽

Author(s):

Norio Ito ◽

Koichi Takahashi

Keyword(s):

Conventional Method ◽

Analytical Method ◽

Second Order ◽

Tooth Surface ◽

Gear Pair ◽

Hypoid Gear ◽

Third Order ◽

Hypoid Gears ◽

Gear Cutting ◽

Tooth Surfaces

Abstract In this paper, the relationships between the conjugate tooth surfaces of hypoid gears and the formal tooth bearing pattern are presented. First, we introduce the tooth surface elements necessary for the tooth bearing. Next, the tooth bearing pattern, which changes according to the generating condition of the pinion, is introduced. The hypoid gear pair is a formate gear and the pinion generated to run with such a gear. The conventional method for analyzing the tooth bearing pattern has been developed by the motion of generation between second-order tooth surfaces. In this paper, the tooth surface is expressed by the original third-order tooth surface, and the tooth bearing pattern is analyzed by the meshing motion of the tooth surface. The tooth bearing pattern obtained from such an analytical method becomes the formal tooth bearing. Therefore, the machine settings for accurate gear cutting become possible, and the desired tooth bearing pattern can be obtained beforehand without a trial cutting.

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