Baier, T., Schulz-Ruthenberg, M., Ametowobla, M., Schlenker, T., Manz, D.
Theoretical approach to estimate laser process parameters for drilling in crystalline silicon
Progr. Photovoltaics 18, Nr 8, 603-606, DOI:10.1002/pip.1012
2010

Schulz-Ruhtenberg, M., Baier, T., Boeckler, E.-W., Siebert, C.
Concept and realization of a high-rate laser drilling process reaching for ten thousands holes per second and beyond
ICALEO 2010. 29th International Congress on Applications of Lasers & Electro Optics, Anaheim/Ca., September 26-30, 2010. Paper M1103, (4 S.)
2010

J. Dietrich, M. Brajdic, S. Engbers, L. Klinkmüller, I. Kelbassa
Enhancing the quality and productivity of laser drilling by changing process gas parameters while processing
28th International Congress on Applications of Lasers & Electro-Optics, November 2-5, 2009
Orlando, Fl.: LIA 2009
4 S. (Paper 1705)

J. Dietrich, M. Brajdic, A. Mirau, L. Klinkmueller, I. Kelbassa
The influence of process gases on laser drilling
Proc. of the 5th Int. WLT Conf. on Lasers in Manufacturing 2009, Munich, June 15th-18th, 2009.
Ed. by A. Ostendorf [u.a.]
Stuttgart: AT-Fachverlag 2009
pp. 815-818

M. Brajdic, K. Walther, U. Eppelt
Analysis of laser drilled deep holes in stainless steel by superposed pulsed Nd:YAG laser radiation
Opt. Lasers Eng.
46, 648-655, 2008

K. Walther, M. Brajdic, I. Kelbassa, R. Poprawe
Bohren mit gepulster Laserstrahlung
WT Werkstattstechnik
98, 520-523, 2008

A. Gillner, A. Dohrn, C. Hartmann
High quality laser machining for tool and part manufacturing using innovative machining systems and laser beam sources
Proc. of the 3rd CIRP Int. Conf. High Performance Cutting (HPC), Dublin, Ireland,
June 12 -13, 2008

K. Walther, C. Holtkoetter, I. Kelbassa, R. Poprawe
Influence of process gas sort and pressure on laser percussion drilling
Proc. of the 27th Int. Conf. on Applications of Lasers and Electro-Optics 2008, ICALEO, Temecula, CA, October 20-23, Paper 301
7 S., 2008

M. Brajdic, M. Hermans, A. Horn, I. Kelbassa
In situ measurement of plasma and shock wave properties inside laser-drilled metal holes
Meas. Sci. Technol.
19, 1-8, 2008

J. Dietrich, M. Brajdic, K. Walther, A. Horn, I. Kelbassa, R. Poprawe
Investigation of increased drilling speed by online high-speed photography
Optics Lasers Eng.
46, 705-710, 2008

M. Brajdic, M. Hermans, A. Horn, I. Kelbassa
Investigation of plasma and shock-wave dynamics and properties inside holes during laser drilling of metals
Proc. LPM2008 - 9th Int. Symposium on Laser Precision Microfabrication
4 S., 2008

K. Walther, M. Brajdic, J. Dietrich, M. Hermans, M. Witty, A. Horn, I. Kelbassa, R. Poprawe
Manufacturing of shaped holes in multi-layer plates by laser drilling
Proc. 3rd Pacific Int. Conf. on Application of Lasers and Optics
pp. 789-794, 2008

M. Brajdic, M. Hermans, M. Kaminsky, I. Kelbassa
Measurement of plasma and shock-wave dynamics and properties inside holes during laser drilling of metals
Proc. of the 27th Int. Conf. on Applications of Lasers and Electro-Optics 2008, ICALEO, Temecula, CA, October 20-23, Paper 110
6 S., 2008

R. Poprawe, I. Kelbassa, K. Walther, M. Witty, D. Bohn, R. Krewinkel
Optimising and manufacturing a laser-drilled cooling hole geometry for effusion-cooled multi-layer plates
12th Int. Symp. Transport Phenomena and Dynamics of Rotating Machinery, Honolulu, Hawai, February 17-22, 2008
11 S., 2008

E. W. Kreutz, K. Walther, R. Poprawe, S. Angel, E. Ratte, W. Bleck, K. Bobzin, E. Lugscheider, R. Nickel, K. Richardt, N. Bagcivan
High-temperature turbine applications using open porous metallic foams with thermal barrier coatings and cooling hole arrays
ISCORMA-4, Calgary/Alberta, Canada
27-31 August 2007
11 S., 2007

K. Walther, M. Brajdic, I. Kelbassa
Increase of drilling velocity by use of superposed laser radiation
Proceedings of 4th International WLT-Conference on Lasers in Manufacturing, Munich, June 2007
4 S., 2007

S. Angel, E. Ratte, W. Bleck, K. Bobzin, E. Lugscheider, R. Nickel, K. Richardt, N. Bagcivan, N., K. Walther, E.W. Kreutz, I. Kelbassa, R. Poprawe
Open porous metallic foams with thermal barrier coating and cooling hole array for high temperature turbine applications
High Temp. Mat. Proc.
11, 321-344, 2007

I. Kelbassa, K. Walther, L. Trippe, W. Meiners, C. Over
Potentials of manufacture and repair of nickel base turbine components used in aero engines and power plants by laser metal deposition and laser drilling
J. Aerospace Power
22, 739-748, 2007

E.W. Kreutz, L. Trippe, K. Walther, R. Poprawe
Process development and control of laser drilled and shaped holes in turbine components
J. Lasermicro/Nanoeng.
2, 123-127, 2007

R. Liebers, U. Dürr, L. Trippe, W. Schulz
Drilling strategies for metals with pulsed YAG lasers
Proceedings of ICALEO 2006
6 Seiten, 2006

K. Walther, M. Brajdic, E. W. Kreutz
Enhanced processing speed in laser drilling of stainless steel by spatially and temporally superposed pulsed Nd:YAG laser radiation
The International Journal of Advanced Manufacturing Technology
5 Seiten/Online first, 2006

I. Kelbassa, K. Walther, L. Trippe, W. Meiners, C. Over
Potentials of manufacture and repair of nickel base turbine components used in aero engines and power plants by laser metal deposition and laser drilling
Proceedings of ISJPPE 2025
9 Seiten, 2006

L. Trippe, K. Walther, E.W. Kreutz,  R. Poprawe
Process development and control of laser drilled and shaped holes in turbine components
Proceedings of LAMP 2006
5 , 2006

R. Poprawe, E. W. Kreutz, L. Trippe, K. Walther
Process development for laser drilled hole arrays in cooled structures
Tagungsband zum 3. Workshop
des SFB 561
DFG
34-38, 2006

I. Kelbassa, C. Over, L. Trippe, E.W. Kreutz,
K. Wissenbach
Reconditioning of nickel base HPT blades and vanes used in aero engines and power plant gas turbines by combination of direct laser forming, laser metal deposition and laser drilling
Proceedings of PICALO 2006
7, 2006