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Garcia Garcia, Oscar; Morales Furió, Miguel; García-Ballesteros Ramírez, Juan José; Porro González, Juan Antonio; Molpeceres Álvarez, Carlos Luis; Sanchez Perez, Angel M.; Ocaña Moreno, José Luis (2008)
Publisher: E.T.S.I. Industriales (UPM)
Languages: Spanish; Castilian
Types: Article
Subjects: Ingeniería Industrial, Mecánica, Materiales
La demanda de miniaturización introducida, entre otros, por la industria de fabricación de MEMS (Micro Electro Mechanical Systems), hace necesario caracterizar y validar los procesos que emplean el láser en el microconformado de materiales metálicos a escala submilimétrica. Como alternativa al microconformado térmico, que hace uso de las deformaciones de origen térmico inducidas por la radiación láser, el microconformado mediante pulsos láser en el dominio de ns hace posible el conformado de materiales metálicos manteniendo, o incluso mejorando, las propiedades mecánicas de los mismos debido a la inducción de tensiones residuales de compresión en la superficie de la pieza tratada. Se presenta en este trabajo el estudio teórico y experimental del microconformado láser mediante la caracterización de diversas pruebas elementales. Miniaturization of components demanded by MEMS (Micro Electro Mechanical Systems) industry, makes necessary the validation of the manufacturing processes applied to submillimetric metallic materials in which laser is used. As an alternative to thermal microforming in which laser induced thermal fields are responsible for the forming phenomena, the use of ns laser pulses makes possible microforming of metallic materials preserving, or even improving, their mechanical properties, due to the induction of residual stresses in the surface. In the present paper experimental tests and FEM simulation results on nanosecond time scale laser microforming are presented.
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