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Abstract
Key Takeaways
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Introduction
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Engineering
Materials Science

MATERIAL PROCESSING: FOCUS ON LASER CUTTING

Profile image of Adams YunusAdams Yunus

2020, BEST: International Journal of Management Information Technology and Engineering (BEST: IJMITE)

Abstract

Light Amplification by Stimulated Emission of Radiation (laser) is among the fastest growing technologies in the engineering world and has a vast range of applications. It involves focusing photons of lights on a single spot of a workpiece with considerable accuracy, so as to transfer energy into the workpiece in a measure that is adequate to melt or achieve a particular material process. The technology is extremely broad, hence this review will focus on using laser for cutting applications which is one of the most popular, recently developed and emerging laser material processing techniques. This review utilizes relevant and recent literature to discuss material cutting by laser, the attributes of laser cutting, laser cutting parameters optimization as well as the trends in development of the process.

Key takeaways
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  1. Laser cutting represents 80% of industrial laser applications, highlighting its prominence in manufacturing.
  2. Optimization models for laser cutting processes remain underexplored, necessitating further research and development.
  3. High-power fiber and disk lasers are emerging as more efficient alternatives to traditional CO2 lasers.
  4. Effective laser cutting involves balancing power, speed, and gas pressure for optimal quality and efficiency.
  5. The text reviews laser cutting technology's advancements and emphasizes the need for improved optimization methodologies.
Figures (14)
Material Processing: Focus on Laser Cutting
Material Processing: Focus on Laser Cutting
hand and to safeguard the optics from speckle in gas as illustrated in Fig. 2.
hand and to safeguard the optics from speckle in gas as illustrated in Fig. 2.
Table 1: Brief of Assorted Researches on Materials Cutting by Laser Table 1 summaries some materials in literature that were successfully cut using a laser.
Table 1: Brief of Assorted Researches on Materials Cutting by Laser Table 1 summaries some materials in literature that were successfully cut using a laser.
The advantages of laser cutting present greater prospects for laser utilization and research. The major setbacks, Material Processing: Focus on Laser Cutting
The advantages of laser cutting present greater prospects for laser utilization and research. The major setbacks, Material Processing: Focus on Laser Cutting
Figure 3: Laser Guided Water Jet (Brian Pfluger & Jacques Coderre, 2016) Adams Yunus, Frederick Kuuyine & Agnes Galyuoni An original laser beam is aimed at a focusing lens. The most widely used Nd: YAG lasers among commercially
Figure 3: Laser Guided Water Jet (Brian Pfluger & Jacques Coderre, 2016) Adams Yunus, Frederick Kuuyine & Agnes Galyuoni An original laser beam is aimed at a focusing lens. The most widely used Nd: YAG lasers among commercially
fluctuation shown in the HAZ width is related to the laser beam’s penetration on the surface of the workpiece. A decline in the speed of cutting by 40% was however observed to raise the width of the HAZ in accordance with the total cut’s depth by 20% (Jarosz, Léschner, & Niestony, 2016). This is illustrated in Fig.5. Similar effects were observed by
fluctuation shown in the HAZ width is related to the laser beam’s penetration on the surface of the workpiece. A decline in the speed of cutting by 40% was however observed to raise the width of the HAZ in accordance with the total cut’s depth by 20% (Jarosz, Léschner, & Niestony, 2016). This is illustrated in Fig.5. Similar effects were observed by
synergetic consequences of the laser cutting variables on the HAZ’s width from their experiments. Madic et al. (MADIC & RADOVANOVIC, 2012) using COz laser to cut stainless steel type AISI 304. Fig.6 shows the
synergetic consequences of the laser cutting variables on the HAZ’s width from their experiments. Madic et al. (MADIC & RADOVANOVIC, 2012) using COz laser to cut stainless steel type AISI 304. Fig.6 shows the
Figure 6: Synergetic consequences of the Laser Cutting Variables on the HAZ’s width (MADIC & RADOVANOVIC, 2012) Eltawahni et al. (Eltawahni, Hagino, Benyounis, Inoue, & Olabi, 2012) also observed that the width of the upper as the speed of cutting and position of the focus were increased. Nevertheless, the speed of cutting is the major factor that influence the upper kerf width. Fig. 7 illustrates his results.
Figure 6: Synergetic consequences of the Laser Cutting Variables on the HAZ’s width (MADIC & RADOVANOVIC, 2012) Eltawahni et al. (Eltawahni, Hagino, Benyounis, Inoue, & Olabi, 2012) also observed that the width of the upper as the speed of cutting and position of the focus were increased. Nevertheless, the speed of cutting is the major factor that influence the upper kerf width. Fig. 7 illustrates his results.
Table 2: The Design Data used in ANOVA Analysis(Amal et al., 2016)
Table 2: The Design Data used in ANOVA Analysis(Amal et al., 2016)
Table 3: Order in which cutting parameters should be adjusted(Radonji¢ et al., 2012) Some research carried out to investigate the performance of laser cutting under varying parametric conditions
Table 3: Order in which cutting parameters should be adjusted(Radonji¢ et al., 2012) Some research carried out to investigate the performance of laser cutting under varying parametric conditions
Figure 8: Cutting surface for some samples at different conditions(Amal et al., 2016)
Figure 8: Cutting surface for some samples at different conditions(Amal et al., 2016)
Radonji¢ et al.(Radonji¢, Kovaé, & Mitrovic, 2012) suggested an order in which cutting parameters should be
Radonji¢ et al.(Radonji¢, Kovaé, & Mitrovic, 2012) suggested an order in which cutting parameters should be
Table 4: Level of Parameters(Lokesh et al., 2018) The Taguchi method has also been explored in other ways or combined with other methods such as grey relational the level of variables used in the study to optimize the laser cutting variables of composite material by the Taguchi process. L9 orthogonal display which has nine various experiments to obtain an optimum feed for cutting with laser. Table 4 shows
Table 4: Level of Parameters(Lokesh et al., 2018) The Taguchi method has also been explored in other ways or combined with other methods such as grey relational the level of variables used in the study to optimize the laser cutting variables of composite material by the Taguchi process. L9 orthogonal display which has nine various experiments to obtain an optimum feed for cutting with laser. Table 4 shows

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Swapnil Deokar

Imperial Journal of Interdisciplinary Research (IJIR) , 2016

Laser cutting is energy based unconventional process used to cut complicated shapes of various types of materials. The objective of this paper is to investigate the effect of parameters associated with the laser cutting process. The quality of laser cut is of the most importance in laser cutting process. All cutting parameters might have significant influence on the resulting quality of work. In general, cutting parameters are adjusted and tuned to provide the quality of cut desired. But this consumes exhaustive amounts of time and effort. Therefore, it is important to investigate the impact of cutting parameters on quality of cut. The relations between the input parameters and the response were investigated. The result showed that the parameters like power, cutting speed and stand-off distance have major impact over surface roughness and kerf width.

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