Spiral bevel gears are known for their smooth operation and high load carrying capability; therefore, they an important part of many transmission systems that designed speed applications. Due to contact ratio complex vibration signal, fault detection is really challenging even in the case serious defects. Therefore, spiral have rarely been used as benchmarking gears’ diagnosis. In this research...

In this study, an optimization methodology is presented to systematically define head-cutter geometry and machine tool settings to introduce optimal tooth modifications in spiral bevel and hypoid gears. The goal of the optimization is to simultaneously minimize the tooth contact pressure and the angular displacement error of the driven gear (the transmission error), to maximize the elastohydrod...

To improve the meshing performance and increase bearing capacity service life of spiral gear pairs, a cutterhead approximation machining method based on controlling geometric topological deviations was proposed to solve problem where line contact bevel gears with tapered teeth depth cannot be machined by cutterheads. First, mathematical model conjugate flank established, comparison between toot...

Within the net-shape and near-net shape technology hot flashless precision forging leads to high forging accuracy of the workpiece with regard to dimensional and surface finish tolerances. The main advantages are shortened production cycles by eliminating machining operations and the saving on raw material lost during machining. By producing ready-to-mount forgings high economical and ecologica...