کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10134226 1645608 2018 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Parameters optimization for horizontally built circular profiles: Numerical and experimental investigation
ترجمه فارسی عنوان
بهینه سازی پارامترهای پروفیل های دایره ای ساخته شده به صورت افقی: مطالعه عددی و تجربی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی
Selective laser melting (SLM), a type of additive manufacturing (AM) process, is chosen for direct fabrication of powder-based functional metallic objects. The designing of small circular geometries or overhang surfaces built parallel to platform bed has been a subject of concern in the industrial application of SLM. This paper presents an attempt to design and fabricate horizontally built circular holes in a simple cubic model in SLM machine. The processing parameters for down-skin such as laser power, scan speed, and the number of scanned layers were found to play a significant role in the sustainability of small hole built without support structures. The lower incident energy in down-skin region prevents excess melting of powder particles. The Numerical study on ANSYS was first carried out to identify the melt pool depth with different processing parameters and later SLM machine was used to produce the specimens for visual inspection. The results were found satisfactory with the application of down-skin parameters (65 W, 1000 mm/s) subjected to scanning of 3-5 layers above the exposed surface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - Volume 174, December 2018, Pages 521-529
نویسندگان
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