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Mostrando ítems 41-49 de 49
Artículo
Analysis of Flangeability by Single-Stage SPIF and Press-Working in AA7075-O Sheet
(American Society of Mechanical Engineers (ASME), 2021-01)
Recently, the research interest of hole-flanging has turned from conventional press-working to single-point incremental forming (SPIF) as a viable process for small- and medium-sized batches. Both technologies have been ...
Ponencia
Condiciones umbrales de crecimiento de grietas pequeñas por fatiga en entallas. Parte II. Generalización y aplicación a resultados experimentales
(Grupo español de fractura, 1999)
El presente trabajo propone una descripción micromecánica del proceso de crecimiento grietas por fatiga en entallas. La interacción de la grieta con las barreras al deslizamiento plástico del material (e.g. los bordes de ...
Artículo
Revisiting Formability and Failure of AISI304 Sheets in SPIF: Experimental Approach and Numerical Validation
(MDPI, 2017-11-28)
Single Point Incremental Forming (SPIF) is a flexible and economic manufacturing process with a strong potential for manufacturing small and medium batches of highly customized parts. Formability and failure in SPIF have ...
Artículo
Critical analysis of necking and fracture limit strains and forming forces in single-point incremental forming
(Elsevier, 2014)
Single-Point Incremental Forming (SPIF) is an emerging manufacturing process especially suitable to pro-duce small batches of metal parts. Moreover, the enhanced formability of metal sheets deformed by SPIFmakes this ...
Artículo
Transición de grieta pequeña a grieta grande en el crecimiento de grietas por fatiga: influencia de la microestructura
(Grupo español de fractura, 2005)
El crecimiento de las grietas pequeñas muestra una fuerte influencia de la microestructura del material, especialmente debido a la orientación cristalográfica de los granos que atraviesa la grieta. El presente trabajo ...
Artículo
Mejora de la resistencia a fatiga por fretting con el tratamiento de shot peening
(Grupo español de fractura, 2017)
En aplicaciones de la industria se aplica el tratamiento superficial de shot peening para introducir tensiones residuales de compresión y así aumentar la vida a fatiga. Este tratamiento es tanto más efectivo cuanto mayor ...
Ponencia
Numerical analysis of necking in stretch-bending based on modified maximum force criteria
(IOP Conference Series: Materials Science and Engineering, 2021)
The necking criteria based on the maximum force principle, such as the Swift and Hill necking models, have been extensively used in the past to study sheet formability. Many extensions or modifications of these criteria ...
Ponencia
Numerical analysis of flanging using tailored rubber pad forming on AA7075-O sheets
(Material Research Forum LLC, 2024)
The flanging of metal sheets is extensively used in the automotive and aeronautical industries to provide rigidity or support for subsequent assembly. Flanging by rubber pad forming is one of the most common processes for ...
Ponencia
Formability analysis of incrementally hole-flanged parts using different tool sizes
(Material Research Forum LLC, 2024)
This contribution analyses the formability of incrementally hole flanged parts using different tool radii (10, 20 and 47.9 mm). The smallest radius (10 mm) can induce full incremental benefits in the hole-flanged specimen, ...