Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Laser Shock Microforming of Thin Metal Sheets with ns Lasers
Year:2011
Research Areas
  • 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 phenomena. 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 fields more dependent on ambient conditions and might make 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 parameter matching for the laser forming of an important range of sheet components used in MEMS that, preserving the short interaction time scale required for the predominantly mechanic (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
No
Title
Physics Procedia
ISBN
1875-3892
Impact factor JCR
0
Impact info
Volume
Journal number
From page
201
To page
206
Month
SIN MES
Ranking
Participants
  • Autor: Jose Luis Ocaña Moreno (UPM)
  • Autor: Miguel Morales Furio (UPM)
  • Autor: Juan Antonio Porro Gonzalez (UPM)
  • Autor: Juan José García-Ballesteros . (UPM)
  • Autor: Carlos Correa Guinea (UPM)
Research Group, Departaments and Institutes related
  • Creador: Centro o Instituto I+D+i: Centro Laser
  • Departamento: Física Aplicada a la Ingeniería Industrial
S2i 2020 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)