Contributions to the generation of precessional gear teeth by plastic deformation

Abstract

Gears are machine parts that occupy an essential place in the operation of various mechanical constructions. The execution of the gears at a high quality level and at a low cost, puts in front of the specialist multiple problems. From the design stage onwards, the specialist must take certain measures to achieve a high reliability of the designed gears. Starting from the correct choice of materials, the designer must adopt constructive solutions of the gears that can be made in the most economical conditions. The cost of manufacturing gears decreases significantly when combining the operations of generating teeth and changing the properties of the surface layer of the teeth. One of these new methods of manufacturing the gears of the precessional gear, in which the formation of the profile of the teeth is not done by cutting, is to obtain the teeth by plastic deformation by rolling.