scholarly journals Development of fiber laser optic system for laser polishing of parts

2016 ◽  
Vol 1 (9) ◽  
pp. 16-23 ◽  
Author(s):  
Александр Савкин ◽  
Aleksandr Savkin ◽  
Владислав Фунтиков ◽  
Vladislav Funtikov ◽  
Александр Григорьянц ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Fiber Laser ◽  
High Power ◽  
Fiber Lasers ◽  
Sample Surface ◽  
Optic System ◽  
Laser Polishing ◽  
Approximate Description ◽  
Laser Head ◽  
Laser Optic

The possibility of an approximate description of a multimode beam of a fiber laser in the Zemax modeling system for the development of an optic system of a laser head is shown. There are developed and manufactured optic units of a laser head taking into account characteristic peculiarities of radiation of high-power fiber lasers. The possibilities are shown the developed optic system in the technology of laser polishing by the remelting of a sample surface made of stainless steel of type 1540-00.

Laser absorption in high-power fiber laser welding of stainless steel and aluminum alloy

2008 ◽  
Author(s):  
Naoyuki Matsumoto ◽  
Yousuke Kawahito ◽  
Masami Mizutani ◽  
Seiji Katayama
Keyword(s):  
Stainless Steel ◽  
Aluminum Alloy ◽  
Laser Welding ◽  
Fiber Laser ◽  
High Power ◽  
Fiber Laser Welding ◽  
Laser Absorption

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

Dynamic keyhole behavior and keyhole instability in high power fiber laser welding of stainless steel

2019 ◽  
Vol 114 ◽  
pp. 1-9 ◽  
Author(s):  
Dabin Zhang ◽  
Meng Wang ◽  
Chengsong Shu ◽  
Yunfei Zhang ◽  
Dongsheng Wu ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Laser Welding ◽  
Fiber Laser ◽  
High Power ◽  
Fiber Laser Welding ◽  
Keyhole Behavior

Investigation of heating laser head optical elements by radiation from high-power fiber laser

2018 ◽  
Author(s):  
Pavel A. Nosov ◽  
Kirill I. Zaytsev ◽  
Nikita V. Chernomyrdin ◽  
Aleksander O. Schadko
Keyword(s):  
Fiber Laser ◽  
High Power ◽  
Optical Elements ◽  
Laser Head

scholarly journals High-Speed Observation and Spectroscopic Analysis of Laser-Induced Plume in High-Power Fiber Laser Welding of Stainless Steel

2007 ◽  
Vol 25 (3) ◽  
pp. 455-460 ◽  
Author(s):  
Yousuke KAWAHITO ◽  
Keisuke KINOSHITA ◽  
Naoyuki MATSUMOTO ◽  
Masami MIZUTANI ◽  
Seiji KATAYAMA
Keyword(s):  
Stainless Steel ◽  
Laser Welding ◽  
Fiber Laser ◽  
High Power ◽  
High Speed ◽  
Spectroscopic Analysis ◽  
Fiber Laser Welding

Autogenous Laser Welding of 20-mm-Thick 316LN Stainless Steel Plate by Ultra High Power Fiber Lasers

2018 ◽  
Vol 45 (5) ◽  
pp. 0502007
Author(s):  
信纪军 Xin Jijun ◽  
方超 Fang Chao ◽  
宋云涛 Song Yuntao ◽  
卫靖 Wei Jing ◽  
吴杰峰 Wu Jiefeng ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Laser Welding ◽  
High Power ◽  
Fiber Lasers ◽  
Steel Plate ◽  
Stainless Steel Plate ◽  
316Ln Stainless Steel

Hybrid Laser/Gas Metal Arc Welding of High Strength Steel Gas Transmission Pipelines

2008 ◽  
Author(s):  
Ian D. Harris ◽  
Mark I. Norfolk
Keyword(s):  
Fiber Laser ◽  
High Power ◽  
Arc Welding ◽  
Fiber Lasers ◽  
Band System ◽  
Gas Metal Arc Welding ◽  
High Strength ◽  
Travel Speed ◽  
Metal Arc Welding ◽  
Welding Processes

Despite significant investment, one-shot welding and power beam processes have not been very successful in achieving real benefits in pipeline construction. The most promising of the newer and more innovative welding processes is the hybrid Laser/arc welding process (HLAW), which can complete 5G welds, assure weld soundness, material properties, and an acceptable geometric profile. The combination of new lasers and pulsed gas metal arc welding (GMAW-P) power source technologies have led to important innovations in the HLAW process that have been shown to increase the travel speed for successful root pass welding. In particular, high power Yb fiber lasers with high efficiency (25% compared with 3% for a Nd:YAG laser) allow a 10kW laser to be built the size of a refrigerator. This allows for previously unheard of portability and power levels for use outside the laboratory and on the pipeline right-of-way. The objective was to develop and apply an innovative HLAW system for mechanized welding of high strength, high integrity, pipelines and develop 5G welding procedures for X80 and X100 pipe, including mechanical testing to API 1104. The main goal of a cost-matched JIP was to develop a prototype hybrid high power Yb fiber laser and GMAW head based on a commercially available bug and band system (Figure 1). Under the DOT project, the subject of this paper, innovative technologies for pipeline girth welding were developed. External hybrid root pass welding techniques were developed for variations of laser power (4–10 kW) and root face thickness (4–8 mm) as this has the greatest potential to meet existing pipeline integrity requirements and facilitate the use of new high power Yb fiber lasers for high speed HLAW of pipe root passes. Following the integration of the Yb fiber laser and GMAW head onto a commercially available bug and band system (CRC-Evans P450) the system was used to achieve full penetration welds with a 4 mm root at a travel speed of 2.3 m/min. The root welds were made in a “double down” configuration using laser powers up to 10kW and travel speeds up to 3 m/min. The final objective of the project is to demonstrate the hybrid LBW/GMAW system under field conditions.

Sign in / Sign up

Export Citation Format

Share Document