Observatorio de I+D+i UPM

Memorias de investigación
Book chapters:
Application of Laser Shock Processing System by Underwater Irradiation (1064 nm) in Metal Surface
Year:2008
Research Areas
  • Mechanical engineering,
  • Naval engineering,
  • Construction materials
Information
Abstract
Laser shock processing (LSP) is a technique for strengthening metals. This process induces a compressive residual stress field which increases fatigue crack initiation life, reduces fatigue crack growth rate and increases wear resistance of metals. We present a configuration and results in the LSP concept for metal surfaces treatments in underwater layer with constant thickness using laser irradiation at 1064 nm. A convergent lens is used to deliver 2, 5 J/cm^ in a 8 ns laser FWHM pulse produced by a Q-switch Nd:YAG Laser. Experimental results using a pulse density of 5 000 pulses/cm^ and spots of 0, 8 mm to 1, 5 mm in diameter on AISI 1040 steel surfaces, Ti6A14V surfaces, 304 Stainless Steel surface and 6061-T6 Aluminum surfaces are presented. A compressive residual stress distribution as a function of depth is assessed by the hole drilling method. High level compressive residual stresses are produced using a 1064 nm wavelength. This method can be applied for surface treatment of final metal products.
International
Si
Book Edition
0
Book Publishing
ISBN
978-0-7354-0511-0
Series
Book title
PROCEEDING OF THE RIAO/OPTILAS 2007
From page
1123
To page
1128
Participants
  • AUTOR: C. RUBIO-GONZÁLEZ (CIDESI, MÉXICO)
  • AUTOR: M. MORA-GONZÁLEZ (Departamento de Ciencias Exactas y Tecnologicas, Centro Universitario de los Lagos, Universidad de Guadalajara (México))
  • AUTOR: F.J. CASILLAS (Departamento de Ciencias Exactas y Tecnologicas, Centro Universitario de los Lagos, Universidad de Guadalajara (México))
  • Autor: Juan Antonio Porro Gonzalez (UPM)
  • Autor: Carlos Luis Molpeceres Alvarez (UPM)
  • AUTOR: F.G. PEÑA-LECONA (Departamento de Ciencias Exactas y Tecnologicas, Centro Universitario de los Lagos, Universidad de Guadalajara (México))
  • Autor: Jose Luis Ocaña Moreno (UPM)
  • AUTOR: G. GÓMEZ-ROSAS (Departamento de Fisica, Centra Universitario de Ciencias Exactas e Ingenierias, Universidad de Guadalaja (México))
  • Autor: Miguel Morales Furio (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Ingeniería y Aplicaciones del Láser
  • Centro o Instituto I+D+i: Centro Laser
  • Departamento: Física Aplicada a la Ingeniería Industrial
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)