Melt flow characteristics in gas-assisted laser cutting
نویسندگان
چکیده
منابع مشابه
Striation Formation and Melt Removal in the Laser Cutting Process
Introduction The formatIOn of periodIC patterns (stnatlOn) has drawn much attentIon In contInUOUS wave laser cutt time (s) tp time penod per oxidation cycle (s) U gas velOCIty profile (m/s) Uo streamwlse gas velOCIty (m/s) V Interfacial velOCIty (m/s) u lIqUId velOCIty In x dIrectIOn (m/s) v hqUId velOCIty In y dIrectIOn or cuttIng speed (m1s) v. fnctIon velOCIty (m/s) W actIvatIOn energy (J) W...
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A numerical model is developed to study the oxidation effects in oxygen-assisted laser cutting of mild steel. Coupled oxygen concentration and energy balance equations are solved by a control-volume based computational scheme while the velocity field is obtained by analytical boundary theory. Theoretical explanation on striation formation is given based on an instability analysis of the molten ...
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ژورنال
عنوان ژورنال: Sadhana
سال: 2002
ISSN: 0256-2499,0973-7677
DOI: 10.1007/bf02703295