A comparative study of the forming of EN3 mild steel sheets with C02 and high power diode lasers

J. Lawrence*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A comparative investigation of the effectiveness of a high power diode laser (HPDL) and a CO2 laser for the forming of thin section EN3 mild steel sheet has been conducted. For both lasers it was found that the induced bending angles increased with an increasing number of irradiations and high laser powers, whilst decreasing as the traverse speed was increased. It was apparent from the experimental results that the laser bending angle was only linearly proportional to the number of irradiations when the latter was small due to local material thickening along the bend edge with a high number of irradiations. Owing to the mild steel's greater beam absorption at the HPDL wavelength, larger bending angles were induced when using the HPDL. However, under certain conditions the performance of the CO2 laser in terms of induced bending angle was seen to approach that of the HPDL. Nevertheless, similar results between the two lasers were only achieved with increasing irradiations, thus it was concluded that the efficacy of the HPDL was higher than that of the CO2 laser insofar as it was more efficient.
Original languageEnglish
Title of host publicationICALEO® 2002
Subtitle of host publication21st International Congress on Laser Materials Processing and Laser Microfabrication
PublisherAIP Publishing
Volume2002
ISBN (Print)9780912035727
DOIs
Publication statusPublished - 1 Oct 2002
Externally publishedYes
Event21st International Congress on Laser Materials Processing and Laser Microfabrication - Scottsdale, United States
Duration: 14 Oct 200217 Oct 2002
https://lia.scitation.org/toc/ica/2002/1?size=all

Conference

Conference21st International Congress on Laser Materials Processing and Laser Microfabrication
Abbreviated titleICALEO 2002
Country/TerritoryUnited States
CityScottsdale
Period14/10/0217/10/02
Internet address

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