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Machine Hammer Peening: A Substitute for Polishing of Pressing Die Surfaces?
Halmstad University, School of Business and Engineering (SET), Mechanical Engineering and Industrial Design (MTEK), Functional Surfaces.ORCID iD: 0000-0001-8058-1252
Chalmers, Göteborg, Sverige.
Chalmers, Göteborg, Sverige.
2009 (English)In: Proceedings of the 3rd Swedish Production Symposium, 2009, 184-189 p.Conference paper, Published paper (Refereed)
Abstract [en]

Machine hammer peening (MHP) is a new method for finishing of surfaces. With this method, the workpiecesurface is hammered with a spherical carbide tool. The mainobjective of the study was to evaluate whether the MHPmethod could become a plausible substitute for manualpolishing in pressing die manufacturing where nodular castiron is a common workpiece material. To do this, samplenodular cast iron surfaces were hammered and evaluated. Changes to the surfaces were evaluated using surfaceroughness measurements, hardness measurements and opticalimages. First of all, the workpiece surface was smoothened. Secondly, the surface hardness was increased significantly. Thirdly, the nodules on the workpiece surface wereaffected. They appeared to be smaller and not as visible. This effect would likely create a die surface less prone to gallingsince the cavities would not be filled with sheet metal to thesame extent in a forming operation. In addition, withMHP, theamount of polishing needed to manufacture a die surface canbe reduced because of the smoothening effect.

Place, publisher, year, edition, pages
2009. 184-189 p.
Keyword [en]
Machine hammer peening, Pressing die, Surface finish, Nodular cast iron, GGG70L
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
URN: urn:nbn:se:hh:diva-14199ISBN: 978-91-633-6006-0 OAI: oai:DiVA.org:hh-14199DiVA: diva2:391336
Conference
The Swedish Production Symposium Gothenburg, Sweden, December 2-3 2009
Projects
Simuparts
Available from: 2011-01-24 Created: 2011-01-24 Last updated: 2014-03-05Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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Language
  • de-DE
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  • en-US
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  • nn-NB
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