In the last three years there have been a number of studies of a combined powder and wire deposition process. This technique has been shown to be applicable to a range of metallic materials, to allow high deposition rates and to be capable of creating functionally graded structures in a single pass. However, all studies to date have been of an experimental nature. In this work, the combined deposition process is analytically modelled using a method based on the Rosenthal equations that accounts for the rate and position of mass addition. The modelled quasi-stationary thermal profiles are verified by comparison with experimental data. The model makes it possible to further understand the process and compare the melt pool and temperature profiles of the conventional powder and wire feed deposition processes with the combined powder-wire process.
Topics
Metallic materials
REFERENCES
1.
Syed
, W.U.H.
, Pinkerton
, A.J.
& Li
, L.
(2004
) Simultaneous Wire- and Powder-feed Direct Metal Deposition: An Investigation of the Process Characteristics and Comparison with Single-feed Methods
, Journal of Laser Applications
18
(1
), 65
–72
.2.
Syed
, W.U.H.
, Pinkerton
, A.J.
& Li
, L.
(2006
) Combining wire and coaxial powder feeding in laser direct metal deposition for rapid prototyping
, Applied Surface Science
252
(13
), 4803
–4808
.3.
Wang
, F.
, Mei
, J.
& Wu
, X.
(2005
) Microstructure Study of Direct Laser Fabricated Compositionally Graded Ti alloys Using Simultaneous Feed of Powder and Wire
, in Proceedings of the 24th International Congress on Applications of Lasers and Electro-optics (ICALEO)
, Miami Fl USA
.4.
Syed
, W.U.H.
, Pinkerton
, A.J.
& Li
, L.
(2004
) Combined wire and powder feeding laser direct metal deposition for rapid prototyping
, in Proceedings of the 23rd International Congress on Applications of Lasers and Electro-optics (ICALEO)
, San Francisco CA USA, CD
.5.
Syed
, W.U.H.
, Pinkerton
, A.J.
, Liu
, Z.
& Li
, L.
(2005
) Single-step graded surface coating using combined wire and powder feeding laser cladding
, in Proceedings of the 24th International Congress on Applications of Lasers and Electro-optics (ICALEO
), Miami Fl USA, CD
.6.
Pinkerton
, A.J.
& Li
, L.
(2004
) An analytical model of energy distribution in laser direct metal deposition, Proceedings of the Institution of Mechanical Engineers
, Part B: Journal of Engineering Manufacture
218
(4
), 363
–374
.7.
Labudovic
, M.
, Hu
, D.
& Kovacevic
, R.
(2003
) A three dimensional model for direct laser metal powder deposition and rapid prototyping
, Journal of Materials Science
38
(1
), 35
–49
.8.
Kaplan
, A.F.H.
& Groboth
, G.
(2001
) Process analysis of laser beam cladding, Transactions of the ASME
, Journal of Manufacturing Science and Engineering
123
, 609
–614
.9.
Hofmeister
, W.
, Griffith
, M.
, Ensz
, M.
& Smugeresky
, J.
(2001
) Solidification in direct metal deposition by LENS processing
, JOM
53
(9
), 30
–34
.10.
Griffith
, M.L.
, Ensz
, M.T.
, Greene
, D.L.
, Reckaway
, D.E.
, Romero
, J.A.
et al (1999
) Solid freeform fabrication using the wirefeed process
, in Proceedings of the 10th Solid Freeform Fabrication Symposium
, Austin TX USA
, 529
–536
.11.
Hensel
, F.
, Binroth
, C.
& Sepold
, G.
(1987
) A comparison of powder- and wire-fed laser beam cladding
, in: B.L.
Mordike
, (ed). Laser Treatment of Materials
, DGM Metallurgy Information, 39
–44
.12.
Hung
, C.F.
& Lin
, J.M.
(2004
) Solidification model of laser cladding with wire feeding technique
, Journal of Laser Applications
16
(3
), 140
–146
.13.
Kim
, J.D.
& Peng
, Y.
(2000
) Temperature field and cooling rate of laser cladding with wire feeding
, Ksme International Journal
14
(8
), 851
–860
.14.
Lin
, J.
(1999
) Temperature analysis of the powder streams in coaxial laser cladding
, Optics & Laser Technology
31
(8
), 565
–570
.15.
Lin
, J.
(2000
) Numerical simulation of the focused powder streams in coaxial laser cladding
, Journal of Materials Processing Technology
105
(1-2
), 17
–23
.16.
Fu
, Y.
, Loredo
, A.
, Martin
, B.
& Vannes
, A.B.
(2002
) A theoretical model for laser and powder particles interaction during laser cladding
, Journal of Materials Processing Technology
128
(1-3
), 106
–112
.17.
Pinkerton
, A.J.
& Li
, L.
(2004
) Modelling powder concentration distribution from a coaxial deposition nozzle for laser-based rapid tooling, Transactions of the ASME
, Journal of Manufacturing Science and Engineering
126
(1
), 34
–42
.18.
Picasso
, M.
, Marsden
, C.F.
, Wagniere
, J.-D.
, Frenk
, A.
& Rappaz
, M.
(1994
) A simple but realistic model for laser cladding
, Metallurgical Transactions B (Process Metallurgy)
25
(2
), 281
–291
.19.
Dai
, K.
& Shaw
, L.
(2001
) Thermal and stress modeling of multi-material laser processing
, Acta Materialia
49
(20
), 4171
–4181
.20.
Han
, L.
& Liou
, F.W.
(2004
) Numerical investigation of the influence of laser beam mode on melt pool
, International Journal of Heat and Mass Transfer
47
(19-20
), 4385
–4402
.21.
Pantsar
, H.
& Kujanpaa
, V.
(2004
) Diode laser beam absorption in laser transformation hardening of low alloy steel
, Journal of Laser Applications
16
(3
), 147
–153
.22.
Dausinger
, F.
& Shen
, J.
(1993
) Energy coupling efficiency in laser surface treatment
, ISIJ International
33
(9
), 925
–933
.23.
Syed
, W.U.H.
, Al-Eid
, E.
, Pinkerton
, A.J.
, Li
, L.
& Pan
, J.
(2006
) Statistical Modelling - the effect of processing conditions on powder deposition efficiency in direct laser deposition
, International Journal of Manufacturing Technology and Management
, Submitted.24.
Dowden
, J.M.
(2001
) The Mathematics of Thermal Modelling: An Introduction to the Theory of Laser Material Processing, Chapman & Hall
.25.
Pinkerton
, A.J.
(2004
) A Mathematical and Experimental Investigation of Thin Wall Laser Direct Metal Deposition
, UMIST, PhD Thesis.26.
Pinkerton
, A.J.
& Li
, L.
(2005
) An experimental and numerical study of the influence of diode beam shape on thin wall direct metal deposition
, Journal of Laser Applications
17
(1
), 47
–56
.27.
Rosenthal
, D.
(1946
) The theory of moving sources of heat and its application to metal treatments
, Transactions of the American Society of Mechanical Engineers (ASME)
68
(11
), 849
–866
.28.
Griffith
, M.L.
, Ensz
, M.T.
, Puskar
, J.D.
, Robino
, C.V.
, Brooks
, J.A.
et al (2000
) Understanding the microstructure and properties of components fabricated by Laser Engineered Net Shaping (LENS
), in Proceedings of the Solid Freeform and Additive Fabrication Conference
, San Francisco CA USA
, 9
–20
.29.
Syed
, W.U.H.
(2006
) Combined Wire and Powder Deposition for Laser Direct Metal Additive Manufacturing
, The University of Manchester
, PhD.30.
Drezet
, J.-M.
, Pellerin
, S.
, Bezencon
, C.
& Mokadem
, S.
(2004
) Modelling the Marangoni convection in laser heat treatment
, Journal de Physique IV (Proceedings)
120
, 299
–306
.
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