Laser shock processing as a method of decreasing fatigue of a die-casting die made of maraging steel

Grum, Janez and Zupancic, Martin and Ocaña Moreno, José Luis and Morales Furió, Miguel and Porro González, Juan Antonio (2008). Laser shock processing as a method of decreasing fatigue of a die-casting die made of maraging steel. "Int. J. Microstructure and Materials Properties", v. 3 (n. 2); pp. 271-281. ISSN 1741-8429. https://doi.org/10.1504/IJMMP.2008.018734.

Description

Title: Laser shock processing as a method of decreasing fatigue of a die-casting die made of maraging steel
Author/s:
  • Grum, Janez
  • Zupancic, Martin
  • Ocaña Moreno, José Luis
  • Morales Furió, Miguel
  • Porro González, Juan Antonio
Item Type: Article
Título de Revista/Publicación: Int. J. Microstructure and Materials Properties
Date: 2008
ISSN: 1741-8429
Volume: 3
Subjects:
Freetext Keywords: laser shock processing; LSP; maraging steel; residual stress; microhardness; laser treatment; wear resistance; die casting tools; dies; aluminium alloys.
Faculty: E.T.S.I. Industriales (UPM)
Department: Física Aplicada a la Ingeniería Industrial [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Laser Shock Processing (LSP) is a process of laser treatment with a pulsed beam of high-power density. The process generates locally limited mechanical waves that increase the through-depth density of dislocations. This entails a change in mechanical properties, particularly at the workpiece surface. The treatment with laser-induced shock waves is suitable for structural parts and machine elements subjected to high thermo-dynamical loads. LSP can substantially improve the wear resistance, which is of exceptional significance to die-casting tools made of maraging steel. The paper describes the effects of LSP on chosen 12% Ni maraging steel, which is suitable also for the manufacture of tools for die casting of aluminium alloys. After laser treatment, measurements of residual stresses and microhardness and other properties, including surface defects at the micro level, were carried out. The results of the study confirmed that exceptionally favourable residual stresses and microhardness could be obtained.

More information

Item ID: 2737
DC Identifier: http://oa.upm.es/2737/
OAI Identifier: oai:oa.upm.es:2737
DOI: 10.1504/IJMMP.2008.018734
Official URL: http://www.inderscience.com/browse/index.php?journalCODE=ijmmp
Deposited by: Memoria Investigacion
Deposited on: 29 Mar 2010 09:21
Last Modified: 03 Mar 2017 18:28
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