scholarly journals Development of Laser Beam Machining using Power Diode Laser for leather cutting application

2021 ◽  
Vol 1969 (1) ◽  
pp. 012024
Author(s):  
S Vasanth ◽  
T Muthuramalingam
Keyword(s):  
Laser Beam ◽  
Diode Laser ◽  
Laser Beam Machining ◽  
Power Diode

scholarly journals Machine ability on Leather using Co2 Laser and Power Diode Laser

2019 ◽  
Vol 8 (5S3) ◽  
pp. 151-154
Keyword(s):  
Laser Beam ◽  
Laser Diode ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Laser Diodes ◽  
Machining Process ◽  
Laser Beam Machining ◽  
Laser Technology ◽  
Duty Cycles ◽  
Power Diode

Leather is a versatile, robust and trendy material and therefore its applications are nearly endless. The conventional method of leather cutting takes a lot of man power. Power diode-based Laser technology has grown significantly during recent years due to numerous advantages over conventional cutting methods. The conventional Lasers also have some drawbacks in cutting such as Geometrical inaccuracies, Carbonization, Overcut etc. This can be reduced by the use of Laser diodes. The main purpose of using Laser diode is to reduce power consumption. In the present study, an attempt has been made to develop laser diode-based Laser beam machining (LBM) and CO2 based LBM, to compare the performance measures of Carbonization and Geometrical inaccuracy. The main objective of this work is to enhance the machining process using Laser diode, to make it eco-friendly through the different duty cycles of Pulse Width Modulation (PWM) which can be used to control the intensity of the Laser beam

Study of Residual Stress Surface Distribution on Laser Welded Steel Sheets

2013 ◽  
Vol 486 ◽  
pp. 3-8 ◽  
Author(s):  
Zdenek Pala ◽  
Kamil Kolařík ◽  
Nikolaj Ganev ◽  
Jiří Čapek
Keyword(s):  
Residual Stresses ◽  
Laser Beam ◽  
Laser Welding ◽  
Diode Laser ◽  
High Power ◽  
The Body ◽  
Laser Weld ◽  
Steel Sheets ◽  
Power Diode ◽  
High Power Diode Laser

Advent of high power diode laser has substantially contributed to the popularity of laser welding in industry where its virtues such as low heat input and good weld strength are highly appreciated. However, one of the drawbacks of the laser welding is distortion of the welded bodies that is closely linked with the generation and/or redistribution of residual stresses in the vicinity of the weld. In this contribution, mapping of surface macroscopic residual stresses in two directions, i.e. parallel and perpendicular to the welds, were performed for two bodies. The first contained a weld created with the high power diode laser beam speed of 2 m/min and the second with the speed of 15 m/min. Our aim was to compare not only resulting fields of residual stresses, but also to perform qualitative assessment of the possible presence of crystallographic texture and gain a qualitative apprehension about the grain sizes in the vicinity of a laser weld joining two steel sheets. Larger distortion of the body with a laser weld is exhibited by the sample manufactured with approximately 8 times bigger speed of laser beam. This sample is in the immediate vicinity characterized by substantial compressive residual stresses in the direction perpendicular to the weld.

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