Adaptive Control for Laser Cutting Using Striation Frequency Analysis

Kaebernick, H.; Jeromin, Andreas; Mathew, P.

doi:10.1016/s0007-8506(07)62802-9

Cited by 27 publications

(8 citation statements)

References 6 publications

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“…The two flows differ in the distribution of velocity, the size and distribution of shear stress, the energy loss and so on, which will affect the formation of the cut surface topography [7]. For a long time it has been widely acknowledged that laser materials' processing technology parameters such as the laser power, cutting speed, etc., are the main factors that influence the processing quality [5,8,9]. But other studies show that the outside influences such as the disturbance of aided cutting gas flow, the change of the circumstance air current, etc., will all be direct causes for the formation of the turbulent flow [7].…”

Section: Experimental Methods By Using a Cyclone Slag Separatormentioning

confidence: 99%

Technological study of laser cutting silicon steel controlled by rotating gas flow

Lei

Zhang

2009

Optics & Laser Technology

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Section: Experimental Methods By Using a Cyclone Slag Separatormentioning

confidence: 99%

Technological study of laser cutting silicon steel controlled by rotating gas flow

Lei

Zhang

2009

Optics & Laser Technology

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“…al. [ 17 ] described a monitoring technique in the laser cutting. The analytical techniques proved that the surface roughness was improved by controlling laser pulses.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Laser Parameters on Cutting Metallic Materials

Son

Lee

2020

Materials

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This experimental study investigated the effect of laser parameters on the machining of SS41 and SUS304. The metallic materials play an important role in engineering applications. They are widely used in high-tech industries such as aerospace, automotive, and architecture. Due to the development of technology and high-tech industrialization, the various processing technologies are being developed with the requirement of high precision. However, the conventional cutting process is difficult to meet high precision processing. Therefore, to achieve high precision processing of the SS41 and SUS304, laser manufacturing has been applied. The current study investigated the process quality of laser cutting for SS41 and SUS304, with the usage of a continuous wave CO2 laser cutting system. The experimental variables are set to the laser cutting speed, laser power, and different engineering materials. The results are significantly affected by the laser parameters. As the result, the process quality of the laser cutting has been observed by measuring the top and bottom kerf widths, as well as the size of the melting zone and Heat Affected Zone (HAZ) according to volume energy. In addition, the evaluation of the laser processing parameters is significantly important to achieve optimal cutting quality. Therefore, we observed the correlation between the laser parameters and cutting quality. These were evaluated by analysis of variance (ANOVA) and multiple regression analysis. The experimental results of kerf top, kerf bottom, melting width, and HAZ on the laser parameters are properly predicted by multiple regression. In addition, the effect of laser parameters on the materials is determinant by the percentage of contribution of ANOVA.

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“…In contrast, in the cutting process, the workpiece and the laser beam move with respect to each other and the material goes downwards. In laser cutting researchers focus on [3][4][5][6][7] dynamic phenomena and quality detection during the laser cutting progress. They presented that the main reason for adherent material was related to melt ejection on the walls of the kerf, showing that the optimal cutting speed for defect-free and low bottom roughness related to the striation formation in the sidewalls of the kerf could be determined.…”

Section: Introductionmentioning

confidence: 99%

Influence of Process Parameters in Laser Piercing

Garcia¹,

Ramos²,

Lamíkiz

et al. 2019

Applied Sciences

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This work addresses the analysis of the influence of process parameters in laser piercing for mild steel, stainless steel, and aluminum thick sheets, carried out by the monitorization of the signal with a photodiode installed coaxially in the cutting head. The sensor captures the infrared or visible signal emitted during the piercing. The relationship between the intensity of the signal and the parameter values was analyzed, distinguishing between soft and fast piercings. The results permit the optimization of the piercing strategy with a reduction of 25% in time and the possibility of establishing a threshold to control the piercing process. This study reveals the importance of knowing parameter dependencies with the process results and highlights the potential of monitorization systems in laser cutting to improve the piercing duration and avoid wasting time during production.

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Adaptive Control for Laser Cutting Using Striation Frequency Analysis

Cited by 27 publications

References 6 publications

Technological study of laser cutting silicon steel controlled by rotating gas flow

Technological study of laser cutting silicon steel controlled by rotating gas flow

The Effect of Laser Parameters on Cutting Metallic Materials

Influence of Process Parameters in Laser Piercing

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