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.

Effect of CO2 laser cutting process parameters on edge quality and operating cost of AISI316L

2012 ◽  
Vol 44 (4) ◽  
pp. 1068-1082 ◽  
Author(s):  
H.A. Eltawahni ◽  
M. Hagino ◽  
K.Y. Benyounis ◽  
T. Inoue ◽  
A.G. Olabi
Keyword(s):  
Co2 Laser ◽  
Process Parameters ◽  
Laser Cutting ◽  
Operating Cost ◽  
Cutting Process ◽  
Edge Quality

scholarly journals Post-Processing of FDM 3D-Printed Polylactic Acid Parts by Laser Beam Cutting

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 550 ◽  
Author(s):  
Mahmoud Moradi ◽  
Mojtaba Karami Moghadam ◽  
Mahmoud Shamsborhan ◽  
Mahdi Bodaghi ◽  
Hamid Falavandi
Keyword(s):  
Process Parameters ◽  
Focal Plane ◽  
Laser Cutting ◽  
Cutting Speed ◽  
Cutting Process ◽  
Poly Lactic Acid ◽  
Regression Equations ◽  
Post Processing ◽  
Fused Deposition ◽  
3D Printed

In this paper, the post-processing of 3D-printed poly lactic acid (PLA) parts is investigated. Workpieces are manufactured by fused deposition modeling (FDM) 3D printing, while they may have defects in some areas such as edges. A post-processing is introduced here for 3D-printed samples by low power CO2 laser. The thickness of the FDM samples are 3.2 mm and printed by optimum conditions. Effects of process parameters such as focal plane position (−3.2–3.2 mm), laser power (20–40 W), and laser cutting speed (1–13 mm/s) are examined based on the design of experiments (DOE). Geometrical features of the kerf; top and bottom kerf; taper; ratio of top to the bottom kerf are considered as output responses. An analysis of the experimental results by statistical software is conducted to survey the effects of process parameters and to obtain regression equations. By optimizing of the laser cutting process; an appropriate kerf quality is obtained and also optimum input parameters are suggested. Experimental verification tests show a good agreement between empirical results and statistical predictions. The best optimum sample with 1.19 mm/s cutting speed, 36.49 W power and 0.53 mm focal plane position shows excellent physical features after the laser cutting process when 276.9 μm top and 261.5 μm bottom kerf width is cut by laser.

Cut Surface Features in Various Die-Cutting Processes

2016 ◽  
Vol 719 ◽  
pp. 127-131 ◽  
Author(s):  
Arkarapon Sontamino ◽  
Sutasn Thipprakmas
Keyword(s):  
Process Parameters ◽  
Fem Simulation ◽  
Cutting Process ◽  
Working Process ◽  
Surface Features ◽  
Straight Portion ◽  
Simulation Results ◽  
Cutting Processes ◽  
Blanking Process ◽  
Cut Surface

Currently, the shaped parts combined with straight, concave, and convex portions are increasingly fabricated. To produce the straight portion, the shearing theory is usually applied. As well as, to produce the concave and convex portions, the punching and blanking theories are usually applied. However, with the same die-cutting process parameters, the comparison of cut surface features of straight, concave, and convex portions has not been investigated yet. Therefore, in the present research, the comparison of the cut surface features in various die-cutting processes, including shearing, blanking, and punching processes are investigated. The finite element method (FEM) was used as a tool to investigate these cut surface features. The cut surface features were investigated and clearly identified via the changes of the stress distribution analyses. The results elucidated that with the same die-cutting process parameters, the different cut surface features were obtained. Specifically, the crack formations were easily generated in the case of blanking process, following by the shearing and punching processes, respectively. Therefore, the smooth cut surface was smallest in the case of blanking process, following by the shearing and punching processes, respectively. The laboratory experiments were carried out to verify the accuracy of the FEM simulation results. Based on the cut surface features, the FEM simulation results showed good agreement with the experimental results in terms of the cut surface features. Therefore, to design the die-cutting process parameters to meet the product requirements of complicated shapes, the understanding on these working process parameters being upon the shaped parts is necessarily.

Comparison of Cost Factors in Laser Processing of Materials and Traditional Metal Cutting Processes

2002 ◽  
Author(s):  
Alok K. Verma ◽  
Han P. Bao ◽  
Kartik Nagarathnam
Keyword(s):  
Cost Estimation ◽  
Laser Processing ◽  
Laser Cutting ◽  
Metal Cutting ◽  
Cutting Process ◽  
Estimation Model ◽  
Cost Estimation Model ◽  
Cutting Processes ◽  
Cost Factors

Comparison of cost factors between traditional metal cutting process and laser cutting process has been made. The paper presents a generic cost estimation model for laser cutting of metals. Various types of lasers used in cutting have been discussed as well as the parameters affecting the cutting process.

A Study on the Effect of Process Parameters on Thin NAND Flash Wafer by Multi - Beam Matrix Laser Cutting

2020 ◽  
Vol 830 ◽  
pp. 59-67
Author(s):  
Cheng Zhu Li ◽  
Ruei Han Chen ◽  
Jun Yi Lin ◽  
Liang An Zheng ◽  
Chao Ming Hsu
Keyword(s):  
Process Parameters ◽  
Laser Cutting ◽  
Cutting Speed ◽  
Cutting Process ◽  
Stress And Strain ◽  
Nand Flash ◽  
Analysis Software ◽  
Element Analysis ◽  
Laser Process ◽  
The Finite Element Analysis

This study is designed to investigate the influence of multi-beam matrix laser cutting process on NAND Flash package quality, and find out the important process parameters of multi-beam matrix laser process are defocus amount, laser power, cutting speed and material thickness. Then use the finite element analysis software ANSYS to obtain the minimum temperature influence, stress and strain, and use Taquchi method and variance analysis (ANOVA) to find the optimal temperature combination, the optimal combination of stress and strain and its contribution degree. Finally, the reliability is tested by verification experiments, and the error is found to be within 3.638%. It is confirmed that the optimized parameter combination has high repetitiveness. It is hoped that this study can contribute to the multi-beam matrix laser cutting process.

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