Shot Peening on Pelton Wheels: Methods of Control and Results
- Prof. Dr.-Ing Lothar Wagner Chairman of ICSP8
Published Online: 7 FEB 2006
Copyright © 2003 Wiley-VCH Verlag GmbH & Co. KGaA
How to Cite
Marconi, P., Lauro, M. and Bozzolo, W. (2003) Shot Peening on Pelton Wheels: Methods of Control and Results, in Shot Peening (ed L. Wagner), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527606580.ch18
TU Clausthal, Institut für Werkstoffkunde und Werkstofftechnik, Agricolastr. 6, D-38678 Clausthal-Zellerfeld, Germany
- Published Online: 7 FEB 2006
- Published Print: 12 MAY 2003
Print ISBN: 9783527305377
Online ISBN: 9783527606580
- shot peening on Pelton Wheels;
- automobile manufacturers;
- Barkhausen noise;
- X-ray diffraction
Shot peening is normally used to increase fatigue resistance in rather small-sized mechanical parts (gears, transmission shafts, connecting rods).
Residual stress induced by this treatment has been studied extensively in the past decade.
Some automobile manufacturers have recently introduced specifications concerning the depth of residual stress in gears.
Most of the research done on this topic has made use of the X-ray diffraction method to determine residual stress.
Because of the configuration of Pelton wheels, shot peened areas cannot be easily accessed with portable diffraction meters. For this reason, the authors have used the Barkhausen noise method to measure residual stress and have then compared results before and after peening. The Barkhausen noise method was calibrated against Almen strips by X-ray diffraction and by hole drilling methods.