Experimental investigation of process parameters on layer thickness and density in direct metal laser sintering: a response surface methodology approach

Direct metal laser sintering is an additive manufacturing method which allows manufacturing of complex parts without using dies in short time. In the present study, direct metal laser sintering of steel 316 powder has been studied. Response surface methodology has been used for the design and analys...

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Main Authors: S. A. Fatemi, J. Zamani Ashany, A. Jalali Aghchai, A. Abolghasemi
Format: Article
Language:English
Published: Taylor & Francis Group 2017-04-01
Series:Virtual and Physical Prototyping
Subjects:
Online Access:http://dx.doi.org/10.1080/17452759.2017.1293274
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author S. A. Fatemi
J. Zamani Ashany
A. Jalali Aghchai
A. Abolghasemi
author_facet S. A. Fatemi
J. Zamani Ashany
A. Jalali Aghchai
A. Abolghasemi
author_sort S. A. Fatemi
collection DOAJ
description Direct metal laser sintering is an additive manufacturing method which allows manufacturing of complex parts without using dies in short time. In the present study, direct metal laser sintering of steel 316 powder has been studied. Response surface methodology has been used for the design and analysis of experiments. Nd:YAG laser with a maximum power of 75 W has used to sinter the powder. The effect of current, scan speed and laser frequency has been investigated on layer thickness and density of fabricated samples. In addition, by using multi response optimisation; appropriate setting to maximise layer thickness and density and also minimise applied energy was suggested. It can be seen that increases in current and frequency lead to increases in thickness and density of samples. Also increasing scan speed decreases layer thickness and density of samples.
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spelling doaj.art-06f932aa3c1b49fb9dc150e3a2d22bc12023-09-21T13:56:59ZengTaylor & Francis GroupVirtual and Physical Prototyping1745-27591745-27672017-04-0112213314010.1080/17452759.2017.12932741293274Experimental investigation of process parameters on layer thickness and density in direct metal laser sintering: a response surface methodology approachS. A. Fatemi0J. Zamani Ashany1A. Jalali Aghchai2A. Abolghasemi3K. N. Toosi University of TechnologyK. N. Toosi University of TechnologyK. N. Toosi University of TechnologyK. N. Toosi University of TechnologyDirect metal laser sintering is an additive manufacturing method which allows manufacturing of complex parts without using dies in short time. In the present study, direct metal laser sintering of steel 316 powder has been studied. Response surface methodology has been used for the design and analysis of experiments. Nd:YAG laser with a maximum power of 75 W has used to sinter the powder. The effect of current, scan speed and laser frequency has been investigated on layer thickness and density of fabricated samples. In addition, by using multi response optimisation; appropriate setting to maximise layer thickness and density and also minimise applied energy was suggested. It can be seen that increases in current and frequency lead to increases in thickness and density of samples. Also increasing scan speed decreases layer thickness and density of samples.http://dx.doi.org/10.1080/17452759.2017.1293274direct metal laser sinteringsteel 316 powderresponse surface methodologylayer thicknessdensity
spellingShingle S. A. Fatemi
J. Zamani Ashany
A. Jalali Aghchai
A. Abolghasemi
Experimental investigation of process parameters on layer thickness and density in direct metal laser sintering: a response surface methodology approach
Virtual and Physical Prototyping
direct metal laser sintering
steel 316 powder
response surface methodology
layer thickness
density
title Experimental investigation of process parameters on layer thickness and density in direct metal laser sintering: a response surface methodology approach
title_full Experimental investigation of process parameters on layer thickness and density in direct metal laser sintering: a response surface methodology approach
title_fullStr Experimental investigation of process parameters on layer thickness and density in direct metal laser sintering: a response surface methodology approach
title_full_unstemmed Experimental investigation of process parameters on layer thickness and density in direct metal laser sintering: a response surface methodology approach
title_short Experimental investigation of process parameters on layer thickness and density in direct metal laser sintering: a response surface methodology approach
title_sort experimental investigation of process parameters on layer thickness and density in direct metal laser sintering a response surface methodology approach
topic direct metal laser sintering
steel 316 powder
response surface methodology
layer thickness
density
url http://dx.doi.org/10.1080/17452759.2017.1293274
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