کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7177291 1466752 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Selective laser melting for manufacturing of thin-walled porous elements
ترجمه فارسی عنوان
ذوب لیزری انتخابی برای تولید عناصر متخلخل نازک دیواره
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی
Selective laser melting (SLM) as additive manufacturing technology is studied in this paper for the generation of thin-walled elements with defined porosity characteristics. Building accuracy is studied and optimised regarding the manufacturing of thin walls. Leakage tests were performed to analyse the effect of wall thickness on gastightness. The influences of the SLM process parameters laser power, scan speed, and hatch distance on porosity and mechanical characteristics are investigated using a DoE approach. Porosity, permeability, pore size distribution, and tensile strength were analysed. Statistical significant regression models were found for porosity and tensile strength which allow tailored properties within the studied design space. A maximum porosity of 17.35% with a permeability of 2560 E-12 m2 was obtained. Macro pore sizes showed a unimodal pore size distribution with peaks between 7 and 16 μm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 215, January 2015, Pages 114-122
نویسندگان
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