Wide band laser heat treatment using pyramid polygon mirror

A wide laser beam optical system for laser heat treatment processing has been designed with a pyramid polygon mirror, which is able to adjust the amplitude and frequency. It consists of a rotating pyramid polygon mirror made of copper and a cooling part that protects the surface of the mirror from d...

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Veröffentlicht in:Optics and lasers in engineering 2001-05, Vol.35 (5), p.285-297
Hauptverfasser: Kim, Jae-Do, Jung, Jae-Kyoung, Jeon, Byung-Cheol, Cho, Chong-Du
Format: Artikel
Sprache:eng
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Zusammenfassung:A wide laser beam optical system for laser heat treatment processing has been designed with a pyramid polygon mirror, which is able to adjust the amplitude and frequency. It consists of a rotating pyramid polygon mirror made of copper and a cooling part that protects the surface of the mirror from damage by heat. The system provides a linear laser heat source with the wide scanning width. This can increase the efficiency of production and quality of products. The CO 2 laser heat treatment has been processed on SNCM220 and SCM440 steels using the developed optical system. The width of specimens between 13 and 17 mm can be hardened for a single pass scanning.
ISSN:0143-8166
1873-0302
DOI:10.1016/S0143-8166(01)00018-5