Talks and Poster Presentations (with Proceedings-Entry):
B. Adjassoho, E. Kozeschnik, C. Lechner, F. Bleicher, S. Gössinger, C. Bauer:
"Induction of residual stresses and increase of surface hardness by Machine Hammer Peening technology";
Talk: 23rd International DAAAM Symposium,
- 2012-10-27; in: "Annals of DAAAM for 2012&Proceeding of the 23rd International DAAAM Symposium",
B. Katalinic (ed.);
Annals of DAAAM for 2012 & Proceeding of the 23rd International DAAAM Symposium/DAAAM International Vienna,
Machine Hammer Peening is a novel technology for surface treatment, which is based on an actuator that can be attached to any kind of machine tool. This actuator moves an axially guided hard metal ball with an oscillating movement to a work piece surface. The main positive effects of the treatment are the induction of compressive residual stresses, the hardness increase of the upper surface layer and a reduction of surface roughness. Also, a controlled and defined structuring of a material surface is possible by the use of this technology. The purpose of this paper is to show, how this novel technology can be used to influence the surface and the upper surface layer of a material for compressive residual stresses and surface hardening. The X-ray diffraction method and the hole drilling method were used to measure the residual stresses. A comparison of both investigation results is done as part of this work. The results of all investigations show a hardness increase of the upper surface layer.
Keywords: Machine Hammer Peening, residual stress, hardness increase
Created from the Publication Database of the Vienna University of Technology.