Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Laser shock microforming of thin metal sheets
Year:2009
Research Areas
  • Mechanical engineering
Information
Abstract
Continuous and long-pulse lasers have been used for the forming of metal sheets in macroscopic mechanical applications. However, for the manufacturing of micro-electromechanical systems (MEMS), the applicability of such type of lasers is limited by the long-relaxation-time of the thermal fields responsible for the forming henomena. As a consequence of such slow relaxation, the final sheet deformation state is attained only after a certain time, what makes the generated internal residual stress fieldsmore dependent on ambient conditions and mightmake difficult the subsequent assembly process from the point of view of residual stresses due to adjustment. The use of ns laser pulses provides a suitable parametermatching for the laser forming of an important range of sheet components used in MEMS that, preserving the short interaction time scale required for the predominantlymechanic (shock) induction of deformation residual stresses, allows for the successful processing of components in a medium range of miniaturization, particularly important according to its frequent use in such systems. In the present paper, a discussion is presented on the physics of laser shock microforming and the influence of the different effects on the net bending angle. The experimental setup used for the experiments, sample fabrication and experimental results of influence of number of laser pulses on the net bending angle are also presented.
International
Si
JCR
Si
Title
APPLIED SURFACE SCIENCE
ISBN
0169-4332
Impact factor JCR
1,576
Impact info
Volume
255
Journal number
10
From page
5633
To page
5636
Month
MARZO
Ranking
Participants
  • Autor: Jose Luis Ocaña Moreno (UPM)
  • Autor: Miguel Morales Furio (UPM)
  • Autor: Juan José García-Ballesteros . (UPM)
  • Autor: Juan Antonio Porro Gonzalez (UPM)
  • Autor: Oscar Garcia Garcia (UPM)
  • Autor: Carlos Luis Molpeceres Alvarez (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)
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