Laser cutting of structural steel with high beam quality

Veli Kujanpää, A. Salminen, Z. Xiao

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

Laser cutting is one of the most widely used laser processes. It has great advantages in comparison to other thermal and mechanical cutting processes. Laser cutting made manufacturing of new type of products possible e.g. in case of parts requiring 3D cutting. The development of new lasers has brought new opportunities to be carried out with laser cutting. The major advantage to use optical fiber in beam transportation gives new opportunities for use of laser cutting. The new generation of lasers utilizing fiber optical beam delivery can widen ever more the application of 3D cutting. This study concentrates on cutting of carbon steel with a high power fiber laser. The laser used in experiments was with 100 µm optical fiber. The power used was in maximum 3 kW and the material thickness tested was between 3 and 10 mm. The focusing of the laser beam must be changed towards longer focal lengths with increase in material thickness. The same tendency is also with the cutting speed, which is decreased with increase in material thickness. When the cutting speed is concerned, fiber laser can compete very well with CO2 laser. The quality achieved with fiber laser can in best cases compete with the equivalent quality of CO2 laser showing considerable improvement to other laser using optical fiber for beam transportation. (2 refs.)
Original languageEnglish
Title of host publicationProceedings
Subtitle of host publication27th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2008
PublisherLaser Institute of America
Pages656-663
ISBN (Print)978-0-9120-3512-3
Publication statusPublished - 2008
MoE publication typeA4 Article in a conference publication
Event27th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2008 - Temecula, CA, United States
Duration: 20 Oct 200823 Oct 2008

Conference

Conference27th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2008
Abbreviated titleICALEO 2008
CountryUnited States
CityTemecula, CA
Period20/10/0823/10/08

Fingerprint

laser cutting
steels
fiber lasers
optical fibers
lasers
carbon steels
high power lasers
delivery
tendencies
manufacturing
laser beams
products

Cite this

Kujanpää, V., Salminen, A., & Xiao, Z. (2008). Laser cutting of structural steel with high beam quality. In Proceedings: 27th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2008 (pp. 656-663). Laser Institute of America.
Kujanpää, Veli ; Salminen, A. ; Xiao, Z. / Laser cutting of structural steel with high beam quality. Proceedings: 27th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2008. Laser Institute of America, 2008. pp. 656-663
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abstract = "Laser cutting is one of the most widely used laser processes. It has great advantages in comparison to other thermal and mechanical cutting processes. Laser cutting made manufacturing of new type of products possible e.g. in case of parts requiring 3D cutting. The development of new lasers has brought new opportunities to be carried out with laser cutting. The major advantage to use optical fiber in beam transportation gives new opportunities for use of laser cutting. The new generation of lasers utilizing fiber optical beam delivery can widen ever more the application of 3D cutting. This study concentrates on cutting of carbon steel with a high power fiber laser. The laser used in experiments was with 100 µm optical fiber. The power used was in maximum 3 kW and the material thickness tested was between 3 and 10 mm. The focusing of the laser beam must be changed towards longer focal lengths with increase in material thickness. The same tendency is also with the cutting speed, which is decreased with increase in material thickness. When the cutting speed is concerned, fiber laser can compete very well with CO2 laser. The quality achieved with fiber laser can in best cases compete with the equivalent quality of CO2 laser showing considerable improvement to other laser using optical fiber for beam transportation. (2 refs.)",
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Kujanpää, V, Salminen, A & Xiao, Z 2008, Laser cutting of structural steel with high beam quality. in Proceedings: 27th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2008. Laser Institute of America, pp. 656-663, 27th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2008 , Temecula, CA, United States, 20/10/08.

Laser cutting of structural steel with high beam quality. / Kujanpää, Veli; Salminen, A.; Xiao, Z.

Proceedings: 27th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2008. Laser Institute of America, 2008. p. 656-663.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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N2 - Laser cutting is one of the most widely used laser processes. It has great advantages in comparison to other thermal and mechanical cutting processes. Laser cutting made manufacturing of new type of products possible e.g. in case of parts requiring 3D cutting. The development of new lasers has brought new opportunities to be carried out with laser cutting. The major advantage to use optical fiber in beam transportation gives new opportunities for use of laser cutting. The new generation of lasers utilizing fiber optical beam delivery can widen ever more the application of 3D cutting. This study concentrates on cutting of carbon steel with a high power fiber laser. The laser used in experiments was with 100 µm optical fiber. The power used was in maximum 3 kW and the material thickness tested was between 3 and 10 mm. The focusing of the laser beam must be changed towards longer focal lengths with increase in material thickness. The same tendency is also with the cutting speed, which is decreased with increase in material thickness. When the cutting speed is concerned, fiber laser can compete very well with CO2 laser. The quality achieved with fiber laser can in best cases compete with the equivalent quality of CO2 laser showing considerable improvement to other laser using optical fiber for beam transportation. (2 refs.)

AB - Laser cutting is one of the most widely used laser processes. It has great advantages in comparison to other thermal and mechanical cutting processes. Laser cutting made manufacturing of new type of products possible e.g. in case of parts requiring 3D cutting. The development of new lasers has brought new opportunities to be carried out with laser cutting. The major advantage to use optical fiber in beam transportation gives new opportunities for use of laser cutting. The new generation of lasers utilizing fiber optical beam delivery can widen ever more the application of 3D cutting. This study concentrates on cutting of carbon steel with a high power fiber laser. The laser used in experiments was with 100 µm optical fiber. The power used was in maximum 3 kW and the material thickness tested was between 3 and 10 mm. The focusing of the laser beam must be changed towards longer focal lengths with increase in material thickness. The same tendency is also with the cutting speed, which is decreased with increase in material thickness. When the cutting speed is concerned, fiber laser can compete very well with CO2 laser. The quality achieved with fiber laser can in best cases compete with the equivalent quality of CO2 laser showing considerable improvement to other laser using optical fiber for beam transportation. (2 refs.)

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Kujanpää V, Salminen A, Xiao Z. Laser cutting of structural steel with high beam quality. In Proceedings: 27th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2008. Laser Institute of America. 2008. p. 656-663