Gear Corrosion During the Manufacturing Process


No matter how well gears are designed and manufactured, gear corrosion can occur that may easily result in catastrophic failure. Since corrosion is often difficult to observe in the root fillet region or in fine pitched gears with normal visual inspection, it may well go undetected. This paper presents the results of an incident that occurred in a gear manufacturing facility several years ago that resulted in pitting corrosion and intergranular attack (IGA). It shows that superfinishing can mitigate the damaging effects of IGA and pitting corrosion, and suggests that the superfinishing process is a superior repair method for corrosion pitting versus the current practice of glass beading.
ISBN: 978-1-55589-948-6 Pages: 13
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