کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
662031 1458160 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Melting and resolidification of a subcooled metal powder particle subjected to nanosecond laser heating
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Melting and resolidification of a subcooled metal powder particle subjected to nanosecond laser heating
چکیده انگلیسی

Melting and resolidification of a subcooled spherical metal powder particle subjected to nanosecond laser heating are investigated analytically. The problem is divided into three stages: preheating, melting and resolidification, and thermalization. The temperature distributions in the liquid and solid regions and the location of the solid–liquid interface are obtained using an integral approximate method. The effects of the laser intensity and pulse width, initial subcooling, and particle radius on the melting and resolidification of powder particles were investigated. The Selective Laser Sintering (SLS) process for a pulsed laser can be simulated by repeating the three stages but varying the initial conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 50, Issues 11–12, June 2007, Pages 2236–2245
نویسندگان
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