Micro-Range Actuation by Pressure-Induced Elastic Deformation of 316L Steel Membranes Produced by Laser Powder Bed Fusion

In this paper, fundamental research is performed on membrane type actuators made out of 316L stainless steel, manufactured with Laser powder bed fusion (LPBF). A total of six membranes with membrane thicknesses ranging from 0.6 mm up to 1.2 mm were scanned using a high precision metrology system to...

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Autores principales:	Florian Fettweis, Bjorn Verrelst, Svend Bram
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	additive manufacturing application laser powder bed fusion micro-range actuation membrane actuator 316L stainless steel Materials of engineering and construction. Mechanics of materials TA401-492 Production of electric energy or power. Powerplants. Central stations TK1001-1841
Acceso en línea:	https://doaj.org/article/1f46a407b4ed48bda3420ff84b4bf8a6
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id	oai:doaj.org-article:1f46a407b4ed48bda3420ff84b4bf8a6
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spelling	oai:doaj.org-article:1f46a407b4ed48bda3420ff84b4bf8a62021-11-25T15:56:55ZMicro-Range Actuation by Pressure-Induced Elastic Deformation of 316L Steel Membranes Produced by Laser Powder Bed Fusion10.3390/act101102962076-0825https://doaj.org/article/1f46a407b4ed48bda3420ff84b4bf8a62021-11-01T00:00:00Zhttps://www.mdpi.com/2076-0825/10/11/296https://doaj.org/toc/2076-0825In this paper, fundamental research is performed on membrane type actuators made out of 316L stainless steel, manufactured with Laser powder bed fusion (LPBF). A total of six membranes with membrane thicknesses ranging from 0.6 mm up to 1.2 mm were scanned using a high precision metrology system to measure the membrane for displacement at different actuating pressures. The membranes were furthermore investigated for roughness, porosity and thickness. This showed that the thinnest membranes skewed in the print direction when actuated. The remaining membranes achieved higher specific displacements than finite element simulations (FES) predicted, due to surface roughness and porosity. Membrane type actuators can be used for precise actuation within the micrometre range. LPBF allows the creation of internal pockets and membranes in a single metal piece. In opposition to the more commonly used polymers for membrane-type actuators, LPBF steel printed parts offer high stiffness and actuation force. However, due to limitations of the LPBF process on thin walls, large deviations from FES occur. In this paper, a CAD and FES compensation strategy is suggested, which makes future, more complex and effective, designs possible.Florian FettweisBjorn VerrelstSvend BramMDPI AGarticleadditive manufacturing applicationlaser powder bed fusionmicro-range actuationmembrane actuator316L stainless steelMaterials of engineering and construction. Mechanics of materialsTA401-492Production of electric energy or power. Powerplants. Central stationsTK1001-1841ENActuators, Vol 10, Iss 296, p 296 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	additive manufacturing application laser powder bed fusion micro-range actuation membrane actuator 316L stainless steel Materials of engineering and construction. Mechanics of materials TA401-492 Production of electric energy or power. Powerplants. Central stations TK1001-1841
spellingShingle	additive manufacturing application laser powder bed fusion micro-range actuation membrane actuator 316L stainless steel Materials of engineering and construction. Mechanics of materials TA401-492 Production of electric energy or power. Powerplants. Central stations TK1001-1841 Florian Fettweis Bjorn Verrelst Svend Bram Micro-Range Actuation by Pressure-Induced Elastic Deformation of 316L Steel Membranes Produced by Laser Powder Bed Fusion
description	In this paper, fundamental research is performed on membrane type actuators made out of 316L stainless steel, manufactured with Laser powder bed fusion (LPBF). A total of six membranes with membrane thicknesses ranging from 0.6 mm up to 1.2 mm were scanned using a high precision metrology system to measure the membrane for displacement at different actuating pressures. The membranes were furthermore investigated for roughness, porosity and thickness. This showed that the thinnest membranes skewed in the print direction when actuated. The remaining membranes achieved higher specific displacements than finite element simulations (FES) predicted, due to surface roughness and porosity. Membrane type actuators can be used for precise actuation within the micrometre range. LPBF allows the creation of internal pockets and membranes in a single metal piece. In opposition to the more commonly used polymers for membrane-type actuators, LPBF steel printed parts offer high stiffness and actuation force. However, due to limitations of the LPBF process on thin walls, large deviations from FES occur. In this paper, a CAD and FES compensation strategy is suggested, which makes future, more complex and effective, designs possible.
format	article
author	Florian Fettweis Bjorn Verrelst Svend Bram
author_facet	Florian Fettweis Bjorn Verrelst Svend Bram
author_sort	Florian Fettweis
title	Micro-Range Actuation by Pressure-Induced Elastic Deformation of 316L Steel Membranes Produced by Laser Powder Bed Fusion
title_short	Micro-Range Actuation by Pressure-Induced Elastic Deformation of 316L Steel Membranes Produced by Laser Powder Bed Fusion
title_full	Micro-Range Actuation by Pressure-Induced Elastic Deformation of 316L Steel Membranes Produced by Laser Powder Bed Fusion
title_fullStr	Micro-Range Actuation by Pressure-Induced Elastic Deformation of 316L Steel Membranes Produced by Laser Powder Bed Fusion
title_full_unstemmed	Micro-Range Actuation by Pressure-Induced Elastic Deformation of 316L Steel Membranes Produced by Laser Powder Bed Fusion
title_sort	micro-range actuation by pressure-induced elastic deformation of 316l steel membranes produced by laser powder bed fusion
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/1f46a407b4ed48bda3420ff84b4bf8a6
work_keys_str_mv	AT florianfettweis microrangeactuationbypressureinducedelasticdeformationof316lsteelmembranesproducedbylaserpowderbedfusion AT bjornverrelst microrangeactuationbypressureinducedelasticdeformationof316lsteelmembranesproducedbylaserpowderbedfusion AT svendbram microrangeactuationbypressureinducedelasticdeformationof316lsteelmembranesproducedbylaserpowderbedfusion
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Micro-Range Actuation by Pressure-Induced Elastic Deformation of 316L Steel Membranes Produced by Laser Powder Bed Fusion

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