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Striation Formation and Melt Removal in the Laser Cutting Process

✍ Scribed by Kai Chen; Y. Lawrence Yao

Publisher
Society of Manufacturing Engineers
Year
1999
Tongue
English
Weight
922 KB
Volume
1
Category
Article
ISSN
1526-6125

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Striation formation and melt removal in
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The mechanisms of melt ejection and striation formation in continuous wave laser cutting of mild steel are discussed. Melt ejection from the cutting front is shown to be a cyclic phenomenon. Striation formation is strongly affected by the oscillatory characteristic of the thin liquid film on the cut

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Thermal analysis of laser cutting process is carried out, and the first and second law efficiencies of the cutting process are formulated. Thermal efficiencies are predicted for various laser scanning speeds and laser output power levels. The experiment is conducted to examine the resulting cutting