Hole-flanging of AA7075-O sheets: conventional process versus SPIF

Autor: M. Borrego, Gabriel Centeno, Carpóforo Vallellano, J. A. López-Fernández, A.J. Martínez-Donaire, D. Morales-Palma

Publikováno v: Procedia Manufacturing. 50:236-240

Recently, the research interest in hole-flanging for small and medium-sized batches has turned from conventional press-working to SPIF due to the advantages of incremental forming, such as flexibility and cost of tools. Both technologies have been st

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e2fc04a1f83e7c303e850bc0d5474811
https://doi.org/10.1016/j.promfg.2020.08.044

Revisiting flangeability in hole-flanging by single-stage incremental forming and conventional process

Autor: M. Borrego, Gabriel Centeno, A.J. Martínez-Donaire, D. Morales-Palma, J. A. López-Fernández, Carpóforo Vallellano

Publikováno v: ESAFORM 2021.

Recently, hole-flanging by single-stage incremental forming (SPIF) has been proposed as a suitable process to perform hole flanges for small- and medium-sized batches with high flexibility in shape. However, this incremental forming has many differen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4ee06b5bc292f387b29e5bdaff8252ad
https://doi.org/10.25518/esaform21.1544

Yebes 40 m radio telescope and the broad band NANOCOSMOS receivers at 7 mm and 3 mm for line surveys

Autor: J. M. Serna, P. García-Carreño, Oscar García, J. A. López-Fernández, F. Tercero, Juan R. Pardo, Ricardo Amils, José Cernicharo, M. Santander-García, G. Gómez-Molina, B. Vaquero, Juan Daniel Gallego, Valentin Bujarrabal, J. M. Hernandez, F. Beltrán, J. González-García, J. A. López-Pérez, M. Gómez-Garrido, I. Malo, P. de Vicente, L. Barbas, C. Albo, I. Lopez-Fernandez, M. C. Diez, M. Patino-Esteban, Belén Tercero

Publikováno v: Digital.CSIC: Repositorio Institucional del CSIC
Consejo Superior de Investigaciones Científicas (CSIC)
Digital.CSIC. Repositorio Institucional del CSIC
instname
Astron Astrophys

22 pags., 27 figs., 6 tabs.
Context. Yebes 40 m radio telescope is the main and largest observing instrument at Yebes Observatory and is devoted to very long baseline interferometry (VLBI) and single-dish observations since 2010. It has been cov

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c356a0b9bf01cfa53eaf628edf9ad14
http://arxiv.org/abs/2010.16224

On the Determination of Forming Limits in Polycarbonate Sheets

Autor: Carpóforo Vallellano, Maria Beatriz Silva, J. A. López-Fernández, Gabriel Centeno, A.J. Martínez-Donaire, Ana Rosa-Sainz

Publikováno v: Materials
Volume 13
Issue 4
idUS: Depósito de Investigación de la Universidad de Sevilla
Universidad de Sevilla (US)
Materials, Vol 13, Iss 4, p 928 (2020)
idUS. Depósito de Investigación de la Universidad de Sevilla
Colegio Oficial de Psicólogos de Madrid

By proposing an adaptation of the methodology usually used in metal forming, this paper aims to provide a general procedure for determining the forming limits, by necking and fracture, of polymeric sheet. The experimental work was performed by means

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6160981b48913e66eaf8337d1d08637c
https://doi.org/10.3390/ma13040928

Surface Accuracy Improvement of the Yebes 40 Meter Radiotelescope Using Microwave Holography

Autor: Belen Galocha Iraguen, Alberto Barcia Cancio, Felix Tercero Martinez, Pablo de Vicente Abad, J. A. López-Fernández, J. A. López-Pérez

Publikováno v: IEEE Transactions on Antennas and Propagation. 62:2624-2633

The surface improvement of the Centro Astronomico de Yebes (CAY) 40 m radiotelescope with the use of coherent (with-phase) microwave holography is shown. For this purpose, a dual channel Ku-band receiver in prime focus has been developed. It allows h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8dc7a8dce1d401dd0112a28c061453f6
https://doi.org/10.1109/tap.2014.2307351