A high brightness diode laser system is introduced. In this study the practicality of the laser system incorporating a 2.5 kW diode laser source is tested in the industrial fields of metal cutting. 5 mm mild steel and 6 mm stainless steel are cut via oxygen cutting and inert-gas cutting. The process parameters are optimized using design of experiments (DOE) to obtain burr free laser cuts with minimal cut edge surface roughness. Varied factors include cutting speed, gas pressure, focus position, nozzle diameter and nozzle distance. The relationship of these factors to burr formations and cut edge surface roughness is presented.
REFERENCES
1.
Bachmann
F.
, Loosen
P.
, Poprawe
R.
(2007
), High power diode lasers
. Springer Series in Optical Sciences
Vol. 128
2.
Lentjes
M.
, Bruns
P.
(2012
), Metal Cutting with Multi kW Diode Laser
, Laser Technik Journal
Vol. 9
Issue 4
3.
Timmermann
A.
, Bartoschewski
D.
, Schlüter
S.
, Burke
C.
, Meinschien
J.
(2009
), Intensity increasing up to 4 MW/cm2 with BALB’s via wavelengths coupling
, Proc. SPIE
7198
4.
Strohmaier
S.
, Tillkorn
C.
, Olschowsky
P.
, Hostetler
J.
(2010
), High Power High Brightness Direct-Diode Lasers
, Optics & Photonics October
2010
, 25
–29
5.
Köhler
B.
, Ahnepohl
F.
, Rotter
K.
, Biesenbach
J.
(2011
), New approach for high-power diode laser modules with homogenized intensity distribution
, Proc. SPIE
7918
6.
Köhler
B.
, Ahlert
S.
, Bayer
A.
, Kissel
H.
, Müntz
H.
Noeske
A.
, Rotter
K.
, Segref
A.
, Stoiber
M.
, Unger
A.
, Wolf
P.
, Biesenbach
J.
(2012
), Scalable high-power and high-brightness fiber coupled diode laser devices
, Proc. SPIE
8241
, 824108
7.
Koenning
T.P.
, Alegria
K.R.
, Wang
Z.
, Patterson
S.
(2012
), kW-class line sources for direct applications
, Proc. SPIE
8241
, 82414
8.
Vidal
E.
, Quintana
I.
, Aykorbebeitia
U.
, Mendez
E.
, Viera
G.
, Galan
M.
, et al (2010
), Fiber coupling of high-power diode laser stack for direct polycarbonate processing
, Proc. SPIE
7583
, 75830G
9.
Voß
M.
, Meinschien
J.
, Bruns
P.
, Aschke
L.
(2012
), High brightness fibre coupled diode lasers of up to 4-kW output power for material processing
, Proc. SPIE
8241
, 82413
10.
Krause
V.
, Koesters
A.
, Koenig
H.
, Strauss
U.
(2008
), Brilliant high-power diode lasers based on broad area lasers
, Proc. SPIE
6876
11.
Roh
S. D.
, Grasso
D. M
, Small
J. A.
(2009
), Very high-brightness fiber-coupled diode lasers
, Proc. SPIE
7198
12.
Haag
M.
, Köhler
B.
, Biesenbach
J.
, Brand
T.
(2007
), Novel high-brightness fiber coupled diode laser device
, Proc. SPIE
6456
13.
Huang
R. K.
, Chann
B.
, Burgess
J.
, Kaiman
M.
, Overman
R.
, Glenn
J. D.
, Tayebati
P.
(2012
), Direct diode lasers with comparable beam quality to fiber, CO2, and solid state lasers
, Proc. SPIE
8241
, 824102
14.
Rodrigues
G.C.
, Cuypers
M.
, Sichani
E.F.
, Kellens
K.
, Duflou
J.R.
(2013
), Laser cutting with direct diode laser
, Phys Procedia
41
, 551
–558
15.
TeraDiode Cut edge quality as of 11/11/2013: http://teradiode.com/applications/cutting/
16.
Almeida
I.A.
, de Rossi
W.
, Lima
M.S.F.
, Berretta
J.R.
, Nogueira
G.E.C.
, Wetter
N.U.
, Vieira
N.D.
(2006
), Optimization of titanium cutting by factorial analysis of the pulsed Nd:YAG laser
, J. Mat. Proc. Tech.
Vol. 179
, 105
–110
17.
Huehnlein
K.
, Tschirpke
K.
, Hellmann
R.
(2010
), Optimization of laser cutting processes using design of experiments
”, Physics Proc
Vol. 5
, 243
–252
18.
Dubey
A.K.
, Yadava
V.
(2007
), ‘Simultaneous optimization of multiple quality characteristics in laser beam cutting using Taguchi method
’, Int. J. Precision Eng. Manuf.
Vol. 8
(4
), 10
–15
19.
Li
C.H.
, Tsai
M.J.
, Yang
C.D.
(2007
), ‘Study of optimal laser parameters for cutting QFN packages by Taguchi’s matrix method
’, Opt. Laser Technol.
Vol. 39
, 786
–795
20.
Siebertz
K.
, van Bebber
D.
, Hochkirchen
T.
(2010
) Statistische Versuchsplanung
, VDI-Buch
,21.
Kleppmann
W.
(2011
), Versuchsplanung: Produkte und Prozesse optimieren
, 7. Auflage Hanser Verlag
22.
Powell
J.
, Petring
D.
, Kumar
R. V.
, Al/Mashikhi
S. O.
, Kaplan
A. F. H.
, Voisey
K. T.
(2009
), Laser-oxygen cutting of mild steel: the thermodynamics of the oxidation reaction
, J. Phys. D: Appl. Phys
42
, 015504
23.
Riveiro
A.
, Quintero
F.
, Lusquinos
F.
, Comesana
R.
and Pou
J
(2011
), Study of meld flow dynamics and influence of quality for CO2 laser fusion cutting
24.
Schulz
, W.
; Kostrykin
, V.
; Nießen
, M.
; Michel
, J.
; Petring
, D.
; Kreutz
, E. W.
; Poprawe
, R.
: Dynamics of ripple formation and melt flow in laser beam cutting
. In: J. Phys. D:Appl. Phys.
, 32
(1999
), pp.1219
–1228
25.
Makashev
, N. K.
; Asmolov
, E. S.
; Blinkov
, V. V.
; Yu Boris
, A.
; Burmistrov
, A. V.
; Buzykin
, O. G.
; Makarov
, V A.
: Gas-hydro-dynamics of CW laser cutting of metals in inert gas
. In: Proc. SPIE
, 2257
(1994
), pp.2
–9
26.
Chen
, K.
; Yao
, L.
: Striation formation and melt removal in the laser cutting process
. In: J. Manufacturing Processes
, 1
(1999
), pp.43
–53
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