News & Views

Assessment of Literature on Fatigue Performance of Additively Manufactured Metals

By Bill Mohr on Tuesday, July 19th, 2016


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EWI Principal Engineer Bill Mohr

Additive manufacturing for metal parts holds the promise of being a widely-used manufacturing method allowing much shorter lead times to create pieces than for conventional manufacturing methods. Useful components must not only be manufactured with short lead times, but also provide attractive mechanical properties on which designers and users can rely for the performance of the finished part.

The resistance to fatigue, the growth of cracks due to cyclic loading, is an important part of the performance of many metal parts, so that they can be used in repetitive service environments. Recently, testing of specimens built by additive manufacturing has been a part of many programs with a wide range of test results obtained….

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