Statistical analysis of the effect of processing conditions on powder catchment efficiency in the Direct Laser Deposition (DLD) process

School of Engineering

Associated organisational unit

Structures, Materials and Manufacturing

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review

Published

Standard

Statistical analysis of the effect of processing conditions on powder catchment efficiency in the Direct Laser Deposition (DLD) process. / Syed, W. U. H.; Pinkerton, A. J. ; Li, L. et al.
Virtual modeling and rapid manufacturing: advanced research in virtual and rapid prototyping. ed. / Paulo Jorge Bartolo; A. J. Mateus; F. C. Batista; H. A. Almeida; J. C. Vasco; M. A. Correia; N. F. Alves; N. C. Andre; P. P. Novo; P. Lima; P. C. Custodio; P. G. Martinho; R. A. Carvolho. London: Taylor and Francis, 2005. p. 361-367.

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review

Harvard

Syed, WUH, Pinkerton, AJ, Li, L, Al-Eid, E & Pan, J 2005, Statistical analysis of the effect of processing conditions on powder catchment efficiency in the Direct Laser Deposition (DLD) process. in PJ Bartolo, AJ Mateus, FC Batista, HA Almeida, JC Vasco, MA Correia, NF Alves, NC Andre, PP Novo, P Lima, PC Custodio, PG Martinho & RA Carvolho (eds), Virtual modeling and rapid manufacturing: advanced research in virtual and rapid prototyping. Taylor and Francis, London, pp. 361-367, 2nd International Conference on Advanced Research and Rapid Prototyping, Leiria, 28/09/05.

APA

Syed, W. U. H., Pinkerton, A. J., Li, L., Al-Eid, E., & Pan, J. (2005). Statistical analysis of the effect of processing conditions on powder catchment efficiency in the Direct Laser Deposition (DLD) process. In P. J. Bartolo, A. J. Mateus, F. C. Batista, H. A. Almeida, J. C. Vasco, M. A. Correia, N. F. Alves, N. C. Andre, P. P. Novo, P. Lima, P. C. Custodio, P. G. Martinho, & R. A. Carvolho (Eds.), Virtual modeling and rapid manufacturing: advanced research in virtual and rapid prototyping (pp. 361-367). Taylor and Francis.

Vancouver

Syed WUH, Pinkerton AJ, Li L, Al-Eid E, Pan J. Statistical analysis of the effect of processing conditions on powder catchment efficiency in the Direct Laser Deposition (DLD) process. In Bartolo PJ, Mateus AJ, Batista FC, Almeida HA, Vasco JC, Correia MA, Alves NF, Andre NC, Novo PP, Lima P, Custodio PC, Martinho PG, Carvolho RA, editors, Virtual modeling and rapid manufacturing: advanced research in virtual and rapid prototyping. London: Taylor and Francis. 2005. p. 361-367

Author

Syed, W. U. H. ; Pinkerton, A. J. ; Li, L. et al. / Statistical analysis of the effect of processing conditions on powder catchment efficiency in the Direct Laser Deposition (DLD) process. Virtual modeling and rapid manufacturing: advanced research in virtual and rapid prototyping. editor / Paulo Jorge Bartolo ; A. J. Mateus ; F. C. Batista ; H. A. Almeida ; J. C. Vasco ; M. A. Correia ; N. F. Alves ; N. C. Andre ; P. P. Novo ; P. Lima ; P. C. Custodio ; P. G. Martinho ; R. A. Carvolho. London : Taylor and Francis, 2005. pp. 361-367

Bibtex

@inproceedings{93ba75a19fb34b6386b8bfc10baf4ab5,

title = "Statistical analysis of the effect of processing conditions on powder catchment efficiency in the Direct Laser Deposition (DLD) process",

abstract = "Metallic powders are used in direct laser deposition (DLD) processes to build three-dimensional objects directly from a computer aided design (CAD) model. The low powder deposition efficiency (below 40%) has been a concern for the industries using the techniques, although undamaged powders can be recycled in some applications. However, for aerospace industries, re-use of powders may not be desirable because of the very high part quality required. In addition, poor efficiency increases the proportion of misdirected, semi-molten powders, which adhere to the surface adversely affecting the surface finish. In this investigation, design of experiments and statistical modeling techniques were used to understand and identify the most influential parameters affecting the deposition efficiency in this multiple variable process. Experiments were conducted to simultaneously study the effect of 9 DLD process parameters. Using a 1.5 kW diode laser to deposit 316 L steel powder the maximum powder usage efficiency was found to be limited to 60%. After identifying the most influential factors and trends, further tests were then carried out and the deposition efficiency was raised to 75%. The work identifies the significant deposition parameters and shows the importance of targeting them.",

author = "Syed, {W. U. H.} and Pinkerton, {A. J.} and L. Li and E. Al-Eid and J. Pan",

year = "2005",

language = "English",

isbn = "9780415390620",

pages = "361--367",

editor = "Bartolo, {Paulo Jorge} and Mateus, {A. J.} and Batista, {F. C.} and Almeida, {H. A.} and Vasco, {J. C.} and Correia, {M. A.} and Alves, {N. F.} and Andre, {N. C.} and Novo, {P. P.} and P. Lima and Custodio, {P. C.} and Martinho, {P. G.} and Carvolho, {R. A.}",

booktitle = "Virtual modeling and rapid manufacturing",

publisher = "Taylor and Francis",

note = "2nd International Conference on Advanced Research and Rapid Prototyping ; Conference date: 28-09-2005 Through 01-10-2005",

}

RIS

TY - GEN

T1 - Statistical analysis of the effect of processing conditions on powder catchment efficiency in the Direct Laser Deposition (DLD) process

AU - Syed, W. U. H.

AU - Pinkerton, A. J.

AU - Li, L.

AU - Al-Eid, E.

AU - Pan, J.

PY - 2005

Y1 - 2005

N2 - Metallic powders are used in direct laser deposition (DLD) processes to build three-dimensional objects directly from a computer aided design (CAD) model. The low powder deposition efficiency (below 40%) has been a concern for the industries using the techniques, although undamaged powders can be recycled in some applications. However, for aerospace industries, re-use of powders may not be desirable because of the very high part quality required. In addition, poor efficiency increases the proportion of misdirected, semi-molten powders, which adhere to the surface adversely affecting the surface finish. In this investigation, design of experiments and statistical modeling techniques were used to understand and identify the most influential parameters affecting the deposition efficiency in this multiple variable process. Experiments were conducted to simultaneously study the effect of 9 DLD process parameters. Using a 1.5 kW diode laser to deposit 316 L steel powder the maximum powder usage efficiency was found to be limited to 60%. After identifying the most influential factors and trends, further tests were then carried out and the deposition efficiency was raised to 75%. The work identifies the significant deposition parameters and shows the importance of targeting them.

AB - Metallic powders are used in direct laser deposition (DLD) processes to build three-dimensional objects directly from a computer aided design (CAD) model. The low powder deposition efficiency (below 40%) has been a concern for the industries using the techniques, although undamaged powders can be recycled in some applications. However, for aerospace industries, re-use of powders may not be desirable because of the very high part quality required. In addition, poor efficiency increases the proportion of misdirected, semi-molten powders, which adhere to the surface adversely affecting the surface finish. In this investigation, design of experiments and statistical modeling techniques were used to understand and identify the most influential parameters affecting the deposition efficiency in this multiple variable process. Experiments were conducted to simultaneously study the effect of 9 DLD process parameters. Using a 1.5 kW diode laser to deposit 316 L steel powder the maximum powder usage efficiency was found to be limited to 60%. After identifying the most influential factors and trends, further tests were then carried out and the deposition efficiency was raised to 75%. The work identifies the significant deposition parameters and shows the importance of targeting them.

M3 - Conference contribution/Paper

SN - 9780415390620

SP - 361

EP - 367

BT - Virtual modeling and rapid manufacturing

A2 - Bartolo, Paulo Jorge

A2 - Mateus, A. J.

A2 - Batista, F. C.

A2 - Almeida, H. A.

A2 - Vasco, J. C.

A2 - Correia, M. A.

A2 - Alves, N. F.

A2 - Andre, N. C.

A2 - Novo, P. P.

A2 - Lima, P.

A2 - Custodio, P. C.

A2 - Martinho, P. G.

A2 - Carvolho, R. A.

PB - Taylor and Francis

CY - London

T2 - 2nd International Conference on Advanced Research and Rapid Prototyping

Y2 - 28 September 2005 through 1 October 2005

ER -

Research

Associated organisational unit