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Mostrando ítems 1-10 de 22
Artículo
On the Use of Strain Path Independent Metrics and Critical Distance Rule for Predicting Failure of AA7075-O Stretch-Bend Sheets
(MDPI, 2020-08)
The strain-based forming limit curve is the traditional tool to assess the formability of metal sheets. However, its application should be restricted to proportional loading processes under uniform strain conditions. ...
Ponencia
Numerical Modelling of Conventional and Incremental Forming of Thin-Walled Tube
(Trans Tech Publications Ltd., 2022)
This study presents a numerical analysis of the tube expansion process by conventional tube-end forming versus single point incremental forming (SPIF) using DEFORM. The work includes the assessment of the strain paths ...
Ponencia
Preliminary investigation on homogenization of the thickness distribution in hole-flanging by SPIF
(Elsevier, 2017-06)
A drawback of the hole-flanging process by single-stage SPIF is the non-uniform thickness obtained along the flange. Multi-stage strategies have been used to improve it, however they increase notably the manufacturing time. ...
Ponencia
Numerical study on the thickness homogenization in hole-flanging by single-point incremental forming
(Institute of Physics Publishing, 2018-08)
Incremental sheet forming is a novel technology that has significant benefits compared to conventional forming. However, it is a time-consuming process that is usually carried out in several forming stages to homogenize ...
Artículo
Analysis of formability in conventional hole flanging of AA7075-O sheets: punch edge radius effect and limitations of the FLC
(Springer, 2020-03)
Hole flanges are commonly manufactured in mass production by conventional press-working. In an industrial context, the process limits are usually evaluated by means of the Limiting Forming Ratio (LFR), which defines the ...
Ponencia
Experimental Study on the Evaluation of Necking and Fracture Strains in Sheet Metal Forming Processes
(Elsevier, 2013)
In this paper the formability of AA2024-T3 metal sheets is experimentally analyzed. For this purpose, a series of StretchBending and Incremental Sheet Forming (ISF) tests are carried out. The former tests allow determine ...
Artículo
Stretch-flanging of AA2024-T3 sheet by single-stage SPIF
(Elsevier, 2021-03)
Flanging is a forming process that is commonly used in many high technology industrial applications such as the manufacturing of thin-walled aircraft structures as wing ribs that are formed using rubber-pad forming during ...
Tesis Doctoral
Analysis of single stage SPIF process applied to the hole flanging operation.
(2018-11-09)
Tradicionalmente, las operaciones de rebordeado se llevan a cabo en la industria mediante técnicas de prensado convencionales utilizando punzón y troquel. Sin embargo, investigaciones recientes en conformado incremental ...
Ponencia
Experimental and numerical analysis of the flanging process by SPIF
(Institute of Physics Publishing, 2018-08)
This paper analyses the flangeability of AA2024-T3 sheets using single point incremental forming (SPIF). With this purpose, a series of process parameters is considered including flange length and width, tool radius and ...
Tesis Doctoral
Análisis del efecto de la flexión en la conformabilidad de chapas metálicas
(2011-03-03)
En términos generales, el principal factor limitante en los procesos de conformado de chapa es el fallo del material, entendiendo por fallo cualquier evento que inutilice la chapa. Entre los tipos de fallo más comunes se ...