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Mostrando ítems 1-7 de 7
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. ...
Artículo
On the Determination of Forming Limits in Polycarbonate Sheets
(MDPI, 2020-02)
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 ...
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 ...
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 ...
Artículo
On the Use of Maximum Force Criteria to Predict Localised Necking in Metal Sheets under Stretch-Bending
(MDPI, 2017-11-02)
The maximum force criteria and their derivatives, the Swift and Hill criteria, have been extensively used in the past to study sheet formability. Many extensions or modifications of these criteria have been proposed to ...
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 ...
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 ...