Micro gear hob which module is 0.175mm is designed for the process of micro gear.It is presented that how to design the micro gear including the choice of material

design of structure

tooth profile and check of strength of tip.The manufacturing process of micro gear hob is outlined and the micro gear is processed by the hob in micro CNC hobbing machine.Result shows that the generating method used in hobbing process is better than the profiling method in such as the distribution of the tooth of gear

involute tooth profile

surface finish

less burr.The reasonable design and high precision of micro gear hob is the key of the process of micro gear

micro hobbing process is still a good technology for the batch processing of micro gear.