Search results for " Reshaping"
showing 4 items of 4 documents
An exploratory study for analyzing the energy savings obtainable by reshaping processes of sheet metal based components
2017
Abstract Producing materials causes about 25% of all anthropogenic CO2 emissions. Reshaping could be one of the most efficient strategy to foster material reuse and lower the environmental impact due to material production. Sheet metal forming processes can be applied to reshape sheet metal based component. This research field is still almost unexplored and the actual environmental impact saving potential has not been quantified. The present paper aims at starting to cover this research gap, a modeling effort to quantify the environmental impact saving of reshaping is proposed. Primary energy demand for conventional recycling and reshaping are quantified and compared. Primary energy savings…
New Technique for Aortic Valve Functional Annulus Reshaping Using a Handmade Prosthetic Ring
2011
Background Despite a wide development in aortic leaflets repair techniques, aortic valve annuloplastic procedures are still poorly investigated. We present our aortic valve annuloplastic system consisting of a handmade prosthetic ring with 2 components for reshaping the aortic annulus and sinotubular junction (STJ) and illustrates our surgical approach and clinical results. Methods Since February 2003, 45 patients with aortic valve regurgitation underwent aortic annuloplasty using the new ring. Mean patient age was 58 ± 16 years (range, 46 to 76 years). The ring has 2 components: a circular ring used to undersize the circumference of the aortoventricular junction and 3-crown-like shape ring…
Il piccolo nel grande, il grande nel piccolo. Gli adeguamenti liturgici di Culotta e Leone The small in the big, the big in the small. Culotta and Le…
2015
Una esplorazione degli adeguamenti liturgici di Pasquale Culotta e Giuseppe Leone conduce a comprendere in che modo la loro riflessione sulle architetture per il culto cristiano cattolico sia parte integrante della sperimentazione progettuale incentrata sul rapporto architettura-città. Nel saggio si specifica in cosa consista il lavoro di adeguamento rispetto alle indicazioni formulate nel Concilio Ecumenico Vaticano II (1963). Ci si sofferma sulle peculiarità della liturgia rinnovata: il valore "processionale" dello spazio ecclesiale e la relazione immanente-trascendente, a scala architettonica e urbana. In seguito si approfondiscono, "caso per caso", la riconfigurazione dell'ambone del Du…
Study of the implementation of SPIF as a Reshaping strategy in terms of formability and accuracy performance
2022
The adaption of circular economy strategies has become increasingly necessary in current times. Researches need to be addressed on finding alternative processes or the modification of the existing processes in order to reprocess End-of-Life (EoL) components and consequently recover both materials and their functions. This research paper focuses on the use of single point incremental forming (SPIF) process for the Reshaping of sheet metal EoL components. Uniaxial and biaxial pre-straining was performed on AA5754 sheets to imitate an end-of-life component, and SPIF operations were carried out so as to obtain reshaped components. In previous works, the authors have proven the technical feasibi…