Plastic Gear; Fatigue Test; Polyacetal Polymer; Fatigue Life Evaluation; Unit Load; K-factor
Issue Date
2005-05
Publisher
한국생산제조학회
Citation
한국공작기계학회 2005 춘계학술대회 논문집, Page. 239 - 245
Abstract
Through the fatigue test of plastic gears using polyacetal polymer, this research aims at providing basic data for not only specifying operation conditions of plastic gears, but also designing dimensions of plastic gears with giving fatigue life and the estimated equation of fatigue life of plastic gears. That is, from the fatigue life curves, the estimated equation of fatigue life of plastic gears is taken out. For the estimated equation of fatigue life of plastic gears, this research provides two test methods; one is preserving non-limited temperature of tooth flank, the other is preserving limited temperature of tooth flank. As results, how the temperature of tooth flank affects the fatigue life is shown. In addition, based on the endurance limit, the essential factors of the unit load and K-factor are determined, which are needed in the design of gear by bending strength and surface durability.