Laser cutting quality assessment and thermal efficiency analysis
First and second law efficiencies for laser cutting process are formulated. ..... 1 v. ˙ qLJCT. (5). The energy balance associated with the cutting process can .... 1. 2. 3 . 4. 3.2. Factorial analysis and cut quality assessment. To obtain the effects of ...
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Tuning of a parametric model for the laser cutting of steels
Some experimental results for the laser cutting of carbon and stainless steels are also shown. .... 1 _ 2 mm o 3 mm ax o .5 Fig. 1. C02 versus ~max for the point source model. .... Laser cutting quality assessment and thermal efficiency analysis.
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1.1. Significance and difficulties encountered in improving quality
Oct 23, 1992 ... due to the fact that laser cutting is a highly complex thermal process. ... So the need for research into laser cut quality is apparent, as it .... 3. LASER BEAM MONITORING AND CONTROL. Real-time ... . A commercially available one is the Power Meter Calorimeter System (PMCS) ... Laser beam analysis.
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experimental investigations of co2 laser cut quality of various
Laser cutting is one of the most widely used thermal energy based .... and 0.18 for 6 mm. 2. INVESTIGATIONS OF CO2 LASER. CUT QUALITY ... 3. LITERATURE REVIEW ANALYSIS. AND DISCUSSION. From the literature review, it is clear that a ... Fig.5. Number of process parameters considered in reviewed papers. Laser ...
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Laser Beam Machining: A Literature Review on Heat affected Zones
cut quality and why laser beam machining is more advanced than the other machining ... (LBM) is one of the most widely used thermal-based processes applied for .... 2 Gas assisting Laser Cutting (Radovanovic and Dasic ) .....  BS Yilbas, Laser Cutting Quality Assessment and Thermal Efficiency Analysis, Elsevier ...
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Analysis and Optimization of Laser Machining Parameters - IJIRSET
The width of laser cut or kerf, quality of the cut edges are affected by laser .... STAND OF. DISTANCE. 1. 1. 1. 1. 1. 2. 1. 2. 2. 2. 3. 1. 3. 3. 3. 4. 1. 4. 4. 4. 5. 2. 1. 2 .... B.S.Yilbas, ―Laser cutting quality assessment and thermal efficiency analysis ‖, ...
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The Effect of Laser Type and Power on the Efficiency of Industrial
Oct 1, 2015 ... and laser power on the efficiency of the cutting process for industrial state-of-the- art cut- ... at the thermal efficiency of CO2 laser cutting in oxygen [2,3]. ... and Wandera and Kujanpaa  have investigated melt removal ... (1) where Kav is the average kerf width (mm), v is the cut speed ..... Analysis,” J. Mater.
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Assessment of Laser Cutting Quality using Acoustic - CiteSeerX
... for the assessment of laser-cut quality. Similarly AE bursts sensed after laser cutting give a good insight ... photodiode, a camera  or a pyroelectric detector [ 2] to capture the electromagnetic radiation from ... Investigations using the analysis of airborne acoustic emission with ... specimen material are described [3 , 4, 5].
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STUDY ON THE LASER CUTTING QUALITY OF ULTRA HIGH
speed. Laser cutting process and cut quality depend upon proper selection of laser ... input parameters were manipulated with three level for each parameters. ... The samples were prepared and etched using 2% Nital for 5 seconds. ....  B. S. Yilbas, “Laser cutting quality assessment and thermal efficiency analysis,”.
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Numerical Study of Scan Speed Selection and Kerf Depth - iiste
2.Dedan Kimathi University of Technology, P.O Box 657, 10100, Nyeri-Kenya ... ImageJR software was used for image analysis and generation of kerf ... Keywords: Scan speed, kerf depth, laser. 1. Introduction. Laser machining of ..... “ Laser cutting quality assessment and thermal efficiency analysis”, Journal of Materials.
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CO2 laser machining of wood, perspex and glass with and without
2 No. 2; February 2015. 128. CO2 laser machining of wood, perspex and glass ... away of molten glass from the cut zone . ... Yilbas  assessed cutting quality and thermal efficiency of .... 3. Tapered holes. Fig. 4. Effect of machining time in wood drilling. Fig. 5. .... analysis,” Journal of Materials Processing Technology, vol.
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CO2 laser beam cutting of steels: material issues - ArcelorMittal USA
consistent cut quality in thick (20–25 mm) plates, in both as-rolled and ... Key words: laser beam cutting, steels, residual elements, CO2 laser, residual stresses , ... ety describes laser beam cutting (LBC) as “a thermal cutting ... thickness of about 6 mm (1/4 in.) .... 3–12 mm TS Thermocut 2 • Suitable for plasma and laser cutting.
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Hardness and Microstructural Investigation of Laser Welded - IJENS
Abstract-- The applications for laser welding is seen greatly ... how a 3 kW Helius Hybrid 2513 CO2 laser cutting machine was ... and Lee K.Y  by applying regression analysis. The laser welding parameters very much influence ..... . Yilbas B.S. (2004). “Laser cutting quality assessment amd thermal ... Welding Efficiency.
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A New Method for the Prediction of Laser Cut Surface Topography
Sep 14, 2012 ... 5, 2012. 195. A New Method for the Prediction of Laser Cut Surface ... beam cutting) the material is removed as a result of thermal ... affecting the performance of the cutting process , , . ... technology parameters influencing cut or weld quality , ... On the basis of analysis of available sources in the.
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Effect of Surface Waviness on PMMA by CO2 Laser Micro Milling
Page 1 ... the surface waviness is an important parameter in estimating quality ... as loss establishes efficiency terms for a particular setup. . The laser cutting is a popular process in ... to take 25 set of reading considering variation in speed as 5%, ....  B.S. Yilbas, “Laser cutting quality assessment and thermal efficiency.
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Laser cutting of Kevlar laminates: First and second law analysis†
. They showed that the drilling time was short and laser drilled via ... quality evaluation of laser cutting of fiber reinforced Aramid ... first and second law efficiencies are predicted for three laser ... 3. Thermodynamic analysis ... (1) vanishes, therefore . in out. E. E. = ∑. ∑ x x. (2). Eq. (2) can be written in a detailed form as.
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references - Shodhganga
Page 1 ... functions”, International Journal of Industrial Engineering Computations , 2, ... International Journal of Mechatronics and Manufacturing Systems, 5, 263 – ... Optimization of Laser Beam Cutting for Aluminium Alloy Sheet”, International ..... “Laser cutting quality assessment and thermal efficiency analysis”, Journal.
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Study of cutting quality for TFT-LCD glass substrate | SpringerLink
The glass substrate for the experiment is Corning EAGLE 2000 with a thickness ... References. 1. http://www.corning.com.tw. 2. Ono T, Tanaka K (2001) Effect of ... 3. Yilbas BS (2004) Laser cutting quality assessment and thermal efficiency analysis. ... cutting by short pulse lasers. Thin Solid Films 477:216–221CrossRef. 5.
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A statistical analysis of striation formation during laser cutting of
parameters on the quality achieved during laser cutting of .... 3–7 bar. Nozzle standoff height. 1 mm. Fig. 2 Experimental data for laser cutting of ceramics in.
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Gas-assisted laser cutting of medium-section metals using
Apr 10, 2015 ... Laser cutting of metals and alloys is one of the most com- mercially ... ing the cutting quality ranges from 259 to 75.4,5 These are ... Techniques such as analysis ... quality to fiber2–5,18,35 and conventional41,42 laser beam qual- ity. ...... B. S. Yilbas, “Laser cutting quality assessment and thermal efficiency.
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