Spur Gear Design, Manufacturing And Noise Analysis According To Rolling Method Using Complex Numbers

Abstract

In this study, a software has been improved for parametric drawing and modeling of spur gear using complex numbers in the CAD setting. AutoLISP programming language was used in software development. In the system, parameters such as module and number of teeth can be entered by the user and drawing or modeling of the gears in the CAD environment can be done automatically. This study provides the designer with fast and functional and more precise utility alternative for gear drawing and modeling. In addition, within the scope of the study, the same number of teeth and at the module spur gear were designed in the AutoCAD package program with the classical method. Spur gears, designed in AutoCAD program with the developed package program and classical method, were produced on the wire EDM machine by deriving cutting codes in the MasterCAM program. Noise analysis of the produced spur gear pairs has been made. It was determined that the spur gear pair, designed and produced with the package program developed within the scope of the study, operates approximately 8 dB less noise than the spur gear designed and produced with the classical method. It is possible to design and manufacture the gear in the desired profile by changing the cutter profile for non-standard thread shapes to provide the performance required for a tool and standard tool parameters. For further investigations, spur gears produced by round-ended cutters can be applied symmetrically and asymmetrically.