Fundamental study on reduction of dross in fiber laser cutting of steel by shifting nozzle axis

2021 ◽  
Vol 33 (1) ◽  
pp. 012022
Author(s):  
Atsushi Yagi ◽  
Seigo Kadonaga ◽  
Yasuhiro Okamoto ◽  
Hiroaki Ishiguro ◽  
Ryohei Ito ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Laser Cutting ◽  
Fundamental Study ◽  
Nozzle Axis

Fundamental study of CO2- and fiber laser cutting of steel plates with high speed visualization technique

2014 ◽  
Vol 26 (4) ◽  
pp. 042004 ◽  
Author(s):  
Grigory V. Ermolaev ◽  
Petr V. Yudin ◽  
Francis Briand ◽  
Alexandr V. Zaitsev ◽  
Oleg B. Kovalev
Keyword(s):  
Fiber Laser ◽  
Laser Cutting ◽  
High Speed ◽  
Steel Plates ◽  
Visualization Technique ◽  
Fundamental Study

Improvement of cutting performance for thick stainless steel plates by step-like cutting speed increase in high-power fiber laser cutting

2018 ◽  
Vol 103 ◽  
pp. 311-317 ◽  
Author(s):  
Sangwoo Seon ◽  
Jae Sung Shin ◽  
Seong Yong Oh ◽  
Hyunmin Park ◽  
Chin-Man Chung ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Fiber Laser ◽  
High Power ◽  
Laser Cutting ◽  
Cutting Speed ◽  
Cutting Performance ◽  
Steel Plates ◽  
Speed Increase

scholarly journals On multi-sensor monitoring of fiber laser fusion cutting

2021 ◽  
Vol 1135 (1) ◽  
pp. 012014
Author(s):  
Nikita Levichev ◽  
Joost R. Duflou
Keyword(s):  
Fiber Laser ◽  
Monitoring System ◽  
Laser Cutting ◽  
High Speed ◽  
Process Zone ◽  
Industrial Process ◽  
Industrial Applications ◽  
Laser Fusion ◽  
Thick Plates ◽  
Sensor Monitoring

Abstract Laser cutting is a well-established industrial process for sheet metal applications. However, cutting thick plates is still accompanied by problems because of the characteristic limited process parameter window. Since cutting by means of fiber lasers has become dominant, tailored solutions are required in such systems for industrial applications. The development of a robust real-time monitoring system, which adapts the process parameters according to a specific quality requirement, implies a significant step forward towards automated laser cutting and increases the process robustness and performance. In this work, a coaxial multi-sensor monitoring system is tested for fiber laser cutting of stainless steel thick plates. A high-speed camera and a photodiode sensor have been selected for this investigation. Experiments at different cutting speeds, representing primary cut quality cases, have been conducted and various features of the obtained process zone signals have been examined. Finally, the feasibility of industrial application of the developed setup for high-power fiber laser cutting is discussed, followed by several implementation recommendations.

Study on Fiber Laser Cutting of Pure Copper Sheet

Applied laser ◽  
2013 ◽  
Vol 33 (2) ◽  
pp. 186-191
Author(s):  
闵大勇 Min Dayong ◽  
祁小勇 Qi Xiaoyong ◽  
叶兵 Ye Bing ◽  
卢飞星 Lu Feixing ◽  
王爱华 Wang Aihua
Keyword(s):  
Fiber Laser ◽  
Laser Cutting ◽  
Pure Copper ◽  
Copper Sheet

Research on the Optical Fiber Laser Cutting and Welding System Based on ABB Robot

Applied laser ◽  
2014 ◽  
Vol 34 (6) ◽  
pp. 584-588
Author(s):  
孙加强 Sun Jiaqiang ◽  
焦俊科 Jiao Junke ◽  
张文武 Zhang Wenwu ◽  
阮亮 Ruan Liang ◽  
李威宣 Li Wenxuan
Keyword(s):  
Optical Fiber ◽  
Fiber Laser ◽  
Laser Cutting ◽  
Welding System

scholarly journals Surface Finish and Back-Wall Dross Behavior during the Fiber Laser Cutting of AZ31 Magnesium Alloy

Micromachines ◽  
2018 ◽  
Vol 9 (10) ◽  
pp. 485
Author(s):  
Erika García-López ◽  
Juansethi Ibarra-Medina ◽  
Hector Siller ◽  
Jan Lammel-Lindemann ◽  
Ciro Rodriguez
Keyword(s):  
Surface Roughness ◽  
Magnesium Alloy ◽  
Fiber Laser ◽  
Pulse Energy ◽  
Laser Cutting ◽  
Experimental Models ◽  
Az31 Magnesium Alloy ◽  
Quadratic Model ◽  
Back Wall ◽  
Argon Gas

Magnesium alloys are of increasing interest in the medical industry due to their biodegradability properties and better mechanical properties as compared to biodegradable polymers. Fiber laser cutting of AZ31 magnesium alloy tubes was carried out to study the effect of cutting conditions on wall surface roughness and back-wall dross. During the experiments, an argon gas chamber was adapted in order to avoid material reactivity with oxygen and thus better control the part quality. A surface response methodology was applied to identify the significance of pulse overlapping and pulse energy. Our results indicate minimum values of surface roughness (Ra < 0.7 μm) when the spot overlapping is higher than 50%. A back-wall dross range of 0.24% to 0.94% was established. In addition, a reduction in back-wall dross accumulations was obtained after blowing away the dross particles from inside the tube using an argon gas jet, reaching values of 0.21%. Laser cutting experimental models show a quadratic model for back-wall dross related with the interaction of the pulse energy, and a linear model dependent on pulse overlapping factor for surface roughness.

Sign in / Sign up

Export Citation Format

Share Document