کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5017625 1466716 2018 9 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله
Diameter prediction of removal particles in Al2O3 ceramic laser cutting based on vapor-to-melt ratio
ترجمه فارسی عنوان
پیش بینی قطر ذرات حذف شده در برش لیزری سرامیکی Al2O3 بر اساس نسبت بخار به ذوب
کلمات کلیدی
برش لیزری؛ ورق سرامیک Al2O3؛ مدل تخلیه؛ پیش بینی قطر ذرات؛ نسبت بخار به ذوب؛
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی

In order to predict the particle size of molten removal in laser cutting Al2O3 ceramic plate, an atomization model based on vapor-to-melt ratio is developed to reveal the relationship between material remove forms and results during the process of vaporization-melt. Model correction of vapor-to-melt ratio with different parameters is obtained by laser cutting of 96.4% Al2O3 ceramic plate to get the slit width. The experimental verification is carried out on a JK701H Nd:YAG pulse laser cutting system by simulating under the regression correction of melt flow diameter. Micro-observation on the molten particles with different plate thickness (1.5 mm, 2.0 mm, 3.0 mm varied with increasing of vapor-to-melt ratio) and the calculations show that the particle diameter decreases rapidly (70 μm, 60 μm, 35 μm) with vapor-to-melt ratio after increasing to an extreme value (80 ∼ 85 μm). It is proved that there is an antagonistic relationship between kinetic and thermodynamic effect in the impact of vapor-to-melt ratio (with critical value of 0.1) on the morphology of cutting removal. The results show good agreement between atomization model and experiments with average error below 8%. The analysis verifies this model is feasible and it makes contribution to determine the reasonable processing parameters (such as the control of vapor-to-melt ratio) in laser precision cutting.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 251, January 2018, Pages 109-117
نویسندگان
, ,