Computer control of powder flow for solid freeforming by acoustic modulation
Computer control of powder flow for solid freeforming by acoustic modulation
This communication describes a method for both on/off and flow rate control of dry powders in open capillaries using acoustic vibration. In a glass capillary attached to an electromagnetic transducer, the wave characteristics of the forced vibration control both flow rate and switching of powder flow. The valve is free from relative movement of parts that may wear or seize in the presence of fine powders. The versatility of the flow controller has been demonstrated by playing popular music to a sample of H13 tool steel powder. The on/off switching and the flow rate of the powder correspond to the waveform of the music
powder metering, powder dispensing, rapid prototyping
251-254
Yang, SF
7501634f-782b-462d-aa8a-9e3bdffbf5de
Evans, JRG
8f775835-11a2-4c67-bf0e-2bd328189d8c
July 2003
Yang, SF
7501634f-782b-462d-aa8a-9e3bdffbf5de
Evans, JRG
8f775835-11a2-4c67-bf0e-2bd328189d8c
Yang, SF and Evans, JRG
(2003)
Computer control of powder flow for solid freeforming by acoustic modulation.
Powder Technology, 133 (1-3), .
(doi:10.1016/S0032-5910(03)00088-3).
Abstract
This communication describes a method for both on/off and flow rate control of dry powders in open capillaries using acoustic vibration. In a glass capillary attached to an electromagnetic transducer, the wave characteristics of the forced vibration control both flow rate and switching of powder flow. The valve is free from relative movement of parts that may wear or seize in the presence of fine powders. The versatility of the flow controller has been demonstrated by playing popular music to a sample of H13 tool steel powder. The on/off switching and the flow rate of the powder correspond to the waveform of the music
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Published date: July 2003
Keywords:
powder metering, powder dispensing, rapid prototyping
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 165093
URI: http://eprints.soton.ac.uk/id/eprint/165093
ISSN: 0032-5910
PURE UUID: 485befd3-c77a-45fa-b25f-963402a3e842
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Date deposited: 07 Oct 2010 08:09
Last modified: 14 Mar 2024 02:09
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Contributors
Author:
SF Yang
Author:
JRG Evans
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