Inert gas cutting of thick-section stainless steel and medium-section aluminum using a high power fiber laser

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dc.contributor.authorWandera, Catherine
dc.contributor.authorSalminen, Antti
dc.contributor.authorKujanpaa, Veli
dc.date.accessioned2023-03-12T12:23:22Z
dc.date.available2023-03-12T12:23:22Z
dc.date.issued2009
dc.description.abstractInert gas assisted laser cutting of 10 mm stainless steel plate and 4 mm aluminum sheet was performed with a 5 kWfiber laser. The effects of laser power, cutting speed, focal point position, and assist gas pressure on the cutting performance and cut quality were investigated. Clean cut surfaces without or with minimal dross were achieved with some combinations of process parameters and attempts were made to define parameter windows in terms of cutting speed and laser power for good quality cutting. The maximum cutting speeds for acceptable cut quality were determined at different power levels. The range at which complete through cutting could be achieved so-called parameter window was limited upwards by insufficient power intensity to obtain through cutting at high cutting speeds and downwards by heat conduction at slow cutting speeds. The effects of focal point position and assist gas pressure on the striation pattern cut surface roughness were also examined. Low surface roughness was achieved with the focal point position inside the workpiece showing the need for a wider kerf for better melt ejection in thick-section metal cutting. There was also a reduction in surface roughness with increase in assist gas pressure, but there was no significant reduction in surface roughness above the gas pressure of 16 bar, which could be due to the gas flow dynamics inside the narrow cut kerf at high assist-gas pressures.en_US
dc.identifier.citationWandera, C., Salminen, A., & Kujanpaa, V. (2009). Inert gas cutting of thick-section stainless steel and medium-section aluminum using a high power fiber laser. Journal of laser applications, 21(3), 154-161. http://dx.doi.org/10.2351/1.3184429en_US
dc.identifier.urihttp://dx.doi.org/10.2351/1.3184429
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/8153
dc.language.isoenen_US
dc.publisherJournal of laser applicationsen_US
dc.subjectFiber laser cuttingen_US
dc.subjectThick-sectionen_US
dc.subjectStainless steelen_US
dc.subjectAluminumen_US
dc.titleInert gas cutting of thick-section stainless steel and medium-section aluminum using a high power fiber laseren_US
dc.typeArticleen_US
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