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Erschienen in: Lasers in Manufacturing and Materials Processing 2/2015

01.06.2015

Laser-Assisted Bending of Sharp Angles With Small Fillet Radius on Stainless Steel Sheets: Analysis of Experimental Set-Up and Processing Parameters

verfasst von: Annamaria Gisario, Massimiliano Barletta, Simone Venettacci, Francesco Veniali

Erschienen in: Lasers in Manufacturing and Materials Processing | Ausgabe 2/2015

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Abstract

Achievement of sharp bending angles with small fillet radius on stainless steel sheets by mechanical bending requires sophisticated bending device and troublesome operational procedures, which can involve expensive molds, huge presses and large loads. In addition, springback is always difficult to control, thus often leading to final parts with limited precision and accuracy. In contrast, laser-assisted bending of metals is an emerging technology, as it often allows to perform difficult and multifaceted manufacturing tasks with relatively small efforts. In the present work, laser-assisted bending of stainless steel sheets to achieve sharp angles is thus investigated. First, bending trials were performed by combining laser irradiation with an auxiliary bending device triggered by a pneumatic actuator and based on kinematic of deformable quadrilaterals. Second, laser operational parameters, that is, scanning speed, power and number of passes, were varied to identify the most suitable processing settings. Bending angles and fillet radii were measured by coordinate measurement machine. Experimental data were elaborated by combined ANalysis Of Mean (ANOM) and ANalysis Of VAriance (ANOVA). Based on experimental findings, the best strategy to achieve an aircraft prototype from a stainless steel sheet was designed and implemented.

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Metadaten
Titel
Laser-Assisted Bending of Sharp Angles With Small Fillet Radius on Stainless Steel Sheets: Analysis of Experimental Set-Up and Processing Parameters
verfasst von
Annamaria Gisario
Massimiliano Barletta
Simone Venettacci
Francesco Veniali
Publikationsdatum
01.06.2015
Verlag
Springer US
Erschienen in
Lasers in Manufacturing and Materials Processing / Ausgabe 2/2015
Print ISSN: 2196-7229
Elektronische ISSN: 2196-7237
DOI
https://doi.org/10.1007/s40516-015-0006-3

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