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Analysis of Powder-Gas Flow in Nozzles of Spray-Based Additive Manufacturing Technologies.
Analysis of Powder-Gas Flow in Nozzles of Spray-Based Additive Manufacturing Technologies.

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자료유형  
 학위논문
Control Number  
0017164312
International Standard Book Number  
9798342144582
Dewey Decimal Classification Number  
660
Main Entry-Personal Name  
Gabor, Theodore T.
Publication, Distribution, etc. (Imprint  
[S.l.] : Purdue University., 2024
Publication, Distribution, etc. (Imprint  
Ann Arbor : ProQuest Dissertations & Theses, 2024
Physical Description  
211 p.
General Note  
Source: Dissertations Abstracts International, Volume: 86-04, Section: A.
General Note  
Advisor: Jun, Martin Byung-Guk;Wu, Benxin;Chen, Jun;Lee, Chi Hwan.
Dissertation Note  
Thesis (Ph.D.)--Purdue University, 2024.
Summary, Etc.  
요약Powder Sprays such as Direct Energy Deposition and Cold Spray are rapidly growing and promising manufacturing methods in the Additive Manufacturing field, as they allow easy and localized delivery of powder to be fused to a substrate and consecutive layers. The relatively small size of nozzles allows for these methods to be mounted on CNC machines and Robotic Arms for the creation of complex shapes. However, these manufacturing methods are inherently stochastic, and therefore differences in powder size, shape, trajectory, and velocity can drastically affect whether they will deposit on a substrate. This variation results in an inherent reduction of deposition efficiency, leading to waste and the need for powder collection or recycling systems. The design of the nozzles can drastically affect the variation of powder trajectory and velocity on a holistic level, and thus understanding the gas-powder flow of these nozzles in respect to the features of said nozzles is crucial. This paper proposes and examines how changes in the nozzle geometry affect gas-powder flow and powder focusing for Direct Energy Deposition and Cold Spray. In addition, a new Pulsed Cold Spray nozzle design is proposed that will control the amount of gas and powder used by the nozzle via solenoid actuation. By making these changes to the nozzle, it is possible to improve deposition efficiency and reduce powder/gas waste in these processes, while also allowing for improved coating density. Furthermore, the research done in this thesis will also focus on novel applications to powder spray manufacturing methods, focusing on polymer metallization and part identification.
Subject Added Entry-Topical Term  
Cold.
Subject Added Entry-Topical Term  
Random access memory.
Subject Added Entry-Topical Term  
Metal forming.
Subject Added Entry-Topical Term  
Printed circuit boards.
Subject Added Entry-Topical Term  
Protective coatings.
Subject Added Entry-Topical Term  
Aluminum.
Subject Added Entry-Topical Term  
Energy.
Subject Added Entry-Topical Term  
Scanning electron microscopy.
Subject Added Entry-Topical Term  
Robotics.
Subject Added Entry-Topical Term  
Polymers.
Subject Added Entry-Topical Term  
Raw materials.
Subject Added Entry-Topical Term  
Viscosity.
Subject Added Entry-Topical Term  
Fourier transforms.
Subject Added Entry-Topical Term  
Power.
Subject Added Entry-Topical Term  
Computer aided design--CAD.
Subject Added Entry-Topical Term  
Spray painting.
Subject Added Entry-Topical Term  
Analytical chemistry.
Subject Added Entry-Topical Term  
Design.
Subject Added Entry-Topical Term  
Electrical engineering.
Subject Added Entry-Topical Term  
Industrial engineering.
Subject Added Entry-Topical Term  
Materials science.
Subject Added Entry-Topical Term  
Mathematics.
Subject Added Entry-Topical Term  
Polymer chemistry.
Added Entry-Corporate Name  
Purdue University.
Host Item Entry  
Dissertations Abstracts International. 86-04A.
Electronic Location and Access  
로그인을 한후 보실 수 있는 자료입니다.
Control Number  
joongbu:657642

MARC

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■035    ▼a(MiAaPQ)Purdue26504236
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a660
■1001  ▼aGabor,  Theodore  T.
■24510▼aAnalysis  of  Powder-Gas  Flow  in  Nozzles  of  Spray-Based  Additive  Manufacturing  Technologies.
■260    ▼a[S.l.]▼bPurdue  University.  ▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a211  p.
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-04,  Section:  A.
■500    ▼aAdvisor:  Jun,  Martin  Byung-Guk;Wu,  Benxin;Chen,  Jun;Lee,  Chi  Hwan.
■5021  ▼aThesis  (Ph.D.)--Purdue  University,  2024.
■520    ▼aPowder  Sprays  such  as  Direct  Energy  Deposition  and  Cold  Spray  are  rapidly  growing  and  promising  manufacturing  methods  in  the  Additive  Manufacturing  field,  as  they  allow  easy  and  localized  delivery  of  powder  to  be  fused  to  a  substrate  and  consecutive  layers.  The  relatively  small  size  of  nozzles  allows  for  these  methods  to  be  mounted  on  CNC  machines  and  Robotic  Arms  for  the  creation  of  complex  shapes.  However,  these  manufacturing  methods  are  inherently  stochastic,  and  therefore  differences  in  powder  size,  shape,  trajectory,  and  velocity  can  drastically  affect  whether  they  will  deposit  on  a  substrate.  This  variation  results  in  an  inherent  reduction  of  deposition  efficiency,  leading  to  waste  and  the  need  for  powder  collection  or  recycling  systems.  The  design  of  the  nozzles  can  drastically  affect  the  variation  of  powder  trajectory  and  velocity  on  a  holistic  level,  and  thus  understanding  the  gas-powder  flow  of  these  nozzles  in  respect  to  the  features  of  said  nozzles  is  crucial.  This  paper  proposes  and  examines  how  changes  in  the  nozzle  geometry  affect  gas-powder  flow  and  powder  focusing  for  Direct  Energy  Deposition  and  Cold  Spray.  In  addition,  a  new  Pulsed  Cold  Spray  nozzle  design  is  proposed  that  will  control  the  amount  of  gas  and  powder  used  by  the  nozzle  via  solenoid  actuation.  By  making  these  changes  to  the  nozzle,  it  is  possible  to  improve  deposition  efficiency  and  reduce  powder/gas  waste  in  these  processes,  while  also  allowing  for  improved  coating  density.  Furthermore,  the  research  done  in  this  thesis  will  also  focus  on  novel  applications  to  powder  spray  manufacturing  methods,  focusing  on  polymer  metallization  and  part  identification.
■590    ▼aSchool  code:  0183.
■650  4▼aCold.
■650  4▼aRandom  access  memory.
■650  4▼aMetal  forming.
■650  4▼aPrinted  circuit  boards.
■650  4▼aProtective  coatings.
■650  4▼aAluminum.
■650  4▼aEnergy.
■650  4▼aScanning  electron  microscopy.
■650  4▼aRobotics.
■650  4▼aPolymers.
■650  4▼aRaw  materials.
■650  4▼aViscosity.
■650  4▼aFourier  transforms.
■650  4▼aPower.
■650  4▼aComputer  aided  design--CAD.
■650  4▼aSpray  painting.
■650  4▼aAnalytical  chemistry.
■650  4▼aDesign.
■650  4▼aElectrical  engineering.
■650  4▼aIndustrial  engineering.
■650  4▼aMaterials  science.
■650  4▼aMathematics.
■650  4▼aPolymer  chemistry.
■690    ▼a0771
■690    ▼a0791
■690    ▼a0486
■690    ▼a0389
■690    ▼a0544
■690    ▼a0546
■690    ▼a0794
■690    ▼a0405
■690    ▼a0495
■71020▼aPurdue  University.
■7730  ▼tDissertations  Abstracts  International▼g86-04A.
■790    ▼a0183
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164312▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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