Impact of thermal focal shift on laser cutting processes with high brightness lasers

2012 ◽  
Author(s):  
Sasia Eiselen ◽  
Heiko Zapf ◽  
Eugenia Mantel ◽  
Lukas Hofmann ◽  
Michael Schmidt
Keyword(s):  
Laser Cutting ◽  
High Brightness ◽  
Focal Shift ◽  
Cutting Processes

scholarly journals Energy and Resource Efficiency of Laser Cutting Processes

2014 ◽  
Vol 56 ◽  
pp. 854-864 ◽  
Author(s):  
Karel Kellens ◽  
Goncalo Costa Rodrigues ◽  
Wim Dewulf ◽  
Joost R. Duflou
Keyword(s):  
Laser Cutting ◽  
Resource Efficiency ◽  
Cutting Processes

Study on UV Laser Cutting Processes of Indium Phosphide Wafer

Applied laser ◽  
2012 ◽  
Vol 32 (6) ◽  
pp. 491-496
Author(s):  
周波 Zhou Bo ◽  
郭亮 Guo liang ◽  
彭信翰 Peng Xinhan ◽  
张庆茂 Zhang Qingmao ◽  
罗泽锴 Luo Zekai
Keyword(s):  
Indium Phosphide ◽  
Laser Cutting ◽  
Uv Laser ◽  
Cutting Processes

Optimization of Laser Beam Cutting Process Parameters of Austenitic Materials

2015 ◽  
Vol 1111 ◽  
pp. 235-239 ◽  
Author(s):  
Sanja Petronić ◽  
Biljana Grujic ◽  
Dubravka Milovanovic ◽  
Radomir Jovicic
Keyword(s):  
Process Parameters ◽  
Laser Cutting ◽  
Elevated Pressure ◽  
Cutting Process ◽  
High Mechanical Strength ◽  
Complex Shapes ◽  
Manufactured Products ◽  
Modern Manufacturing ◽  
Design Requirements ◽  
Cutting Processes

Austenitic materials have high demand in modern manufacturing industries due to their improved technological characteristics such as high mechanical strength and hardness, corrosion resistance, heat resistance and wear resistance. Some applications of austenitic materials include elevated pressure and temperature, and require stringent design requirements and close tolerances in manufactured products. Laser cutting is one of the non-conventional cutting processes, used to obtain complex shapes and geometries. In this paper, laser cutting was performed on austenitic material. The laser cutting process parameters are varied with the aim to obtain the optimal process parameters. The geometric and metallurgical characteristics of the cut parts are investigated and compared to the conventional cutting methods of austenitic materials.

scholarly journals Analytical Determination of Residual Stresses from Surface Topography Created by Laser Cutting Technology

2018 ◽  
Vol 15 (2) ◽  
pp. 31-36 ◽  
Author(s):  
Marek Šafář ◽  
Marta Harničárová ◽  
Milena Kušnerová ◽  
Jan Valíček
Keyword(s):  
Surface Topography ◽  
Laser Cutting ◽  
Mathematical Formulation ◽  
Analytical Determination ◽  
Derived Relations ◽  
Cutting Machine ◽  
Cutting Processes ◽  
Cp Ti ◽  
Ultrasound Testing

Abstract This paper describes a numerical modeling method that utilizes stress equations derived from surface topography created by laser cutting technology. The explanatory ability of the geometric phenomena of the created surface topography is an essential analytical tool for the physical-mathematical formulation of the principle of laser cutting processes. As experimental meaterial was used structural steel of type S355J0 and CP-Ti Grade 2. A cutting machine from Prima Industry - ZAPHIRO / CV5000 was used. The new derived relations for the determination of the residual stress were determined and verified by experiment. The objective of this paper is to contribute to the understanding of process-related stresses and deformations generated by laser cutting technology, particularly by ultrasound testing of stress inside the material and significantly influenced by surface topography.

scholarly journals Processing of Advanced Battery Materials—Laser Cutting of Pure Lithium Metal Foils

Batteries ◽  
2018 ◽  
Vol 4 (3) ◽  
pp. 37 ◽  
Author(s):  
Tobias Jansen ◽  
David Blass ◽  
Sven Hartwig ◽  
Klaus Dilger
Keyword(s):  
Solid State ◽  
Laser Cutting ◽  
High Performance ◽  
Cutting Tools ◽  
Lithium Metal ◽  
Adhesive Properties ◽  
Metal Foils ◽  
Solid State Batteries ◽  
All Solid State Batteries ◽  
Cutting Processes

Due to the increasing demand for high-performance cells for mobile applications, the standards of the performance of active materials and the efficiency of cell production strategies are rising. One promising cell technology to fulfill the increasing requirements for actual and future applications are all solid-state batteries with pure lithium metal on the anode side. The outstanding electrochemical material advantages of lithium, with its high theoretical capacity of 3860 mAh/g and low density of 0.534 g/cm3, can only be taken advantage of in all solid-state batteries, since, in conventional liquid electrochemical systems, the lithium dissolves with each discharging cycle. Apart from the current low stability of all solid-state separators, challenges lie in the general processing, as well as the handling and separation, of lithium metal foils. Unfortunately, lithium metal anodes cannot be separated by conventional die cutting processes in large quantities. Due to its adhesive properties and toughness, mechanical cutting tools require intensive cleaning after each cut. The presented experiments show that remote laser cutting, as a contactless and wear-free method, has the potential to separate anodes in large numbers with high-quality cutting edges.

scholarly journals Laser Cutting Head for High-Brightness Lasers

2016 ◽  
Vol 13 (5) ◽  
pp. 19-21 ◽  
Author(s):  
Detlev Wolff ◽  
Jean-Baptiste Karam ◽  
Christine Groß
Keyword(s):  
Laser Cutting ◽  
High Brightness ◽  
Cutting Head
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