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

J. Lawrence

doi:10.2351/1.5066147

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 proceeding › Conference 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 language	English
Title of host publication	ICALEO® 2002
Subtitle of host publication	21st International Congress on Laser Materials Processing and Laser Microfabrication
Publisher	AIP Publishing
Volume	2002
ISBN (Print)	9780912035727
DOIs	https://doi.org/10.2351/1.5066147
Publication status	Published - 1 Oct 2002
Externally published	Yes
Event	21st International Congress on Laser Materials Processing and Laser Microfabrication - Scottsdale, United States Duration: 14 Oct 2002 → 17 Oct 2002 https://lia.scitation.org/toc/ica/2002/1?size=all

Conference

Conference	21st International Congress on Laser Materials Processing and Laser Microfabrication
Abbreviated title	ICALEO 2002
Country/Territory	United States
City	Scottsdale
Period	14/10/02 → 17/10/02
Internet address	https://lia.scitation.org/toc/ica/2002/1?size=all

Access to Document

10.2351/1.5066147

Cite this

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

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.",

author = "J. Lawrence",

year = "2002",

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note = "21st International Congress on Laser Materials Processing and Laser Microfabrication, ICALEO 2002 ; Conference date: 14-10-2002 Through 17-10-2002",

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Lawrence, J 2002, A comparative study of the forming of EN3 mild steel sheets with C0₂ and high power diode lasers. in ICALEO® 2002: 21st International Congress on Laser Materials Processing and Laser Microfabrication. vol. 2002, 162012, AIP Publishing, 21st International Congress on Laser Materials Processing and Laser Microfabrication, Scottsdale, Arizona, United States, 14/10/02. https://doi.org/10.2351/1.5066147

TY - GEN

T1 - A comparative study of the forming of EN3 mild steel sheets with C02 and high power diode lasers

AU - Lawrence, J.

PY - 2002/10/1

Y1 - 2002/10/1

N2 - 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.

AB - 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.

U2 - 10.2351/1.5066147

DO - 10.2351/1.5066147

M3 - Conference contribution

SN - 9780912035727

VL - 2002

BT - ICALEO® 2002

PB - AIP Publishing

T2 - 21st International Congress on Laser Materials Processing and Laser Microfabrication

Y2 - 14 October 2002 through 17 October 2002