Double Cutter Face Milling of Spiral Bevel Gears

The Mathematical Model of Spiral Bevel Gears - A Review

The spiral bevel gear (SBG), with its high contact ratio, high strength and smooth driving, is widely used to transmit dynamic power in various mechanical products, including vehicles, mining machinery, aerospace engineering, and helicopters [1] to [4]. Typical SBGs are shown in Figs. 1a and b. The SBG has been a subject of research for almost a century, and there is a significant amount of lit...

Optimization of Face-Hobbed Spiral Bevel Gears to Improve EHD Lubrication

In this study, an optimization methodology is presented to systematically define optimal tooth modifications introduced by head-cutter geometry and machine tool settings to simultaneously maximize the EHD load carrying capacity of the oil film and to minimize power losses in the oil film of facehobbed spiral bevel gears. The presented optimization procedure relies heavily on the EHD lubrication...

Design and Manufacture of Spiral Bevel Gears with Reduced Transmission Errors

A method for the determination of the optimal polynomial functions for the conduction of machine-tool setting variations in pinion teeth finishing in order to reduce the transmission errors in spiral bevel gears is presented. Polynomial functions of order up to five are applied to conduct the variation of the cradle radial setting and of the cutting ratio in the process for pinion teeth generat...

Tooth Fracture Detection in Spiral Bevel Gears System by Harmonic Response Based on Finite Element Method

Spiral bevel gears occupy several advantages such as high contact ratio, strong carrying capacity, and smooth operation, which become one of the most widely used components in high-speed stage of the aeronautical transmission system. Its dynamic characteristics are addressed by many scholars. However, spiral bevel gears, especially tooth fracture occurrence and monitoring, are not to be investi...

Study of the effective cutter radius for end milling of free-form surfaces using a torus milling cutter