A Comprehensive Report on Lathe Transmission System

In lathe's in order to acquire adequate machining operation effective transmission system is required with proper wide range of speed option (step or step down). Generally, in lathe transmission system, a combination of gear trains is there which increases or decreases the of spindle shaft which is been coupled with the transmission system. To increase the life of the lathe transmission system against fatigue failure, which occurs because of repetitive tensile stresses at the root of the gear tooth of transmission system is a quite challenging task. The inability of gears is very sudden against fatigue loading without giving any indications of failure. Many researchers gave practical ways for improving the gear design of transmission system like, the use of advanced material, harden the gear surface by heat treatment and carburization, improve the surface finish by shot penning method, changing the pressure angle, use asymmetric gear tooth, modify the shape of root fillet curve, etc. In this paper a comprehensive report has been presented which reveals the significant contribution of various researchers in improving the technology of Lathe transmission system or gear train.