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What is the Notch Effect, and How Does Electropolishing Eliminate It?

Sep 24, 2013 5:30:56 AM

Even a metal part that looks flawless to the naked eye can have micro imperfections that drastically shorten its fatigue life. Parts that bend and flex, like springs, are particularly vulnerable to the notch effect, which can cause part failure before they last as long as estimated. What is the notch effect, exactly, and how can electropolishing stainless steel and other metal parts prevent it from causing premature part failure?

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Does Electropolishing Wear Off?

When comparing electropolishing to other metal finishing operations, like plating and coatings, one frequently asked question is whether it wears off over time. The finish resulting from electropolishing will last indefinitely and will not chip, peel or abrade like platings and coatings. If over time, as a result of physical damage, the electropolished surface requires refurbishing or re-machining, there is nothing to strip or remove prior to accomplishing this.

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How Large Does a Part Have to be for Electropolishing?

Sep 10, 2013 5:30:35 AM

Not all metal parts are well-suited for conventional tumbling, vibratory finishing techniques or manual metal polishing. They may be too small, too complex or too delicate for those methods to be effectively utilized. The question that some may have, though, is when are parts too small for electropolishing and is there a method in which parts are processed in a bulk fashion?

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