description
Shot Peening of Gears
AGMA 938-A05 (reaffirmed September 19, 2017)

SCOPE
The purpose of this document is to provide an informational tool for gear designers interested in the residual compressive stress properties produced by shot peening and its relationship to gearing.

Information on shot peening and residual stress is subject to some interpretation; therefore, this document is classified as an information sheet and not a standard.  This document intentionally avoids any reference to quantifying potential increases in gear ratings through the use of shot peening.  Any ratings increase attributed to shot peening should be agreed upon between the gear manufacturer and purchaser, and preferably verified through testing.

This document is intended for use by those experienced in gear materials and design.  It is not intended for use by the engineering public at large.

Annex A provides figures and tables in U.S. customary units.

FOREWORD
[The foreword, footnotes and annexes, if any, in this document are provided for informational purposes only and are not to be construed as a part of AGMA Information Sheet 938-A05, Shot Peening of Gears.]

The purpose of this information sheet is to provide a centralized reference for shot peening information for other AGMA documents.  Previously, multiple AGMA documents had varying descriptions of the shot peening process.  This information sheet provides a thorough process description to assist the gear designer in understanding and implementing the shot peening process.

The first draft of AGMA 938-A05 was made in August 2003.  It was approved by the AGMA Technical Division Executive Committee in May 2005.

Suggestions for improvement of this document will be welcome.  They should be sent to the American Gear Manufacturers Association, 500 Montgomery Street, Suite 350, Alexandria, Virginia  22314.

NORMATIVE REFERENCES
The following documents contain provisions which, through reference in this text, constitute provisions of this information sheet.  At the time of publication, the editions were valid.  All publications are subject to revision, and the users of this information sheet are encouraged to investigate the possibility of applying the most recent editions of the publications listed.

  • ANSI/AGMA 1012-G05, Gear Nomenclature, Definitions of Terms with Symbols.
  • AMS-S-13165, Shot Peening of Metal Parts (formerly MIL-S-13165).
ISBN: 1-55589-847-5 Pages: 14
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