Nano Peenâ„¢ Technology
Author: Peterson Spring: Ronald Check, Willard Schultz, and Chris Osborn
Source: The Shot Peener magazine, Vol 34, Issue 3, Summer 2020
Doc ID: 2020029
Year of Publication: 2020
Abstract:
INTRODUCTION
Peterson Spring has developed and refined a peening
technology for highly stressed springs that greatly enhances
fatigue life by as much as 35%. Previously it was not possible
to shot peen small springs that had outside diameters under
3 mm with wire sizes below 0.5 mm and/or very tight
pitch spacing (less than 0.3 mm between the spring coils).
Peterson Spring has industrialized a production process and
methodology to manufacture small critical springs with a
beneficial residual compressive stress. This innovation will
allow springs to be made more efficiently (smaller) to carry
more load and have higher cycle life for demanding applications
such as fuel systems, medical, aerospace, and military uses.
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