SUPER FINISHING OF GEAR TOOTH PROFILE USING PROFILE GRINDING

Gears are one of the main power transmitting components in an automobile. So while the transmitting power due to surface roughness on meshing gears there produces unwanted sounds in gearbox and can also disturb the functioning of gearbox. Hence finishing or removal of that unwanted roughness from the gear is done using grinding. Normal grinding process cannot grind the surface between the tooth profile hence an alternative and effective method is used to grind the surface between tooth of gear. Then the grinding wheel is just touched to the surface of the gear and both the gear and grinding wheels are rotated at same rpm. The process of Profile grinding is that provides great potential with respect to flexibility and quality, and variety of gears are used for gring. Thus profile grinding is not only used in job shop applications apart from this if has lot of applications like threaded wheel grinding; e.g., large-module gears. This grinding wheel is used, The cutting speed to be perform and rotates with gear and helix angle. If the gear is helical, A discontinuous pitch movement to grind all teeth it requires a continuous rotational movement in order to follow the lead.