DP GROUP, founded in 2016, offer professional laser solutions and sheet metal fabrication machinery. Headquartered in Hong Kong, we operate three factories in mainland China:
DPMach (Dongguan): Specializes in laser cutting, welding, and marking.
DGDY (Dongguan): Focuses on press brake machines with advanced Panel Bender technology.
DPQG (Foshan): Manufactures large tube laser cutting machines for pipes up to 800mm in diameter and 30 meters lenth.

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What is the application prospect of high-power laser cleaning?

Views: 4     Author: hu     Publish Time: 2021-08-27      Origin: dapeng

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Take the current hot prospect of laser applications-laser cleaning as an example. Before 2015, the domestic and foreign laser cleaning applications were mainly solid-state lasers. In 2016, imported laser manufacturers launched high-frequency fiber lasers that can be used for laser cleaning. Aroused widespread concern. The domestic fiber laser manufacturer Raycus has launched the 100W, 200W and 300W pulsed fiber lasers in the past two years, and has launched a new 500W pulsed fiber laser this year. Through its cleaning cases, let's take a look at the effect of "domestic products".

1. The principle of laser cleaning

Due to the differences in laser cleaning materials, process characteristics, and the wavelength, energy density, and cleaning methods of the laser used, the mechanism of laser cleaning is also different. The use of laser has the characteristics of high intensity, high energy density, strong focus, and good directionality. Through the combination of lenses, the beam can be focused and the beam can be concentrated into a small area.


 

 

2. Product features of 500W high-power pulsed fiber laser launched by Raycus Laser


① Integrated design of laser, electro-optical conversion efficiency is as high as 30%;


② The closed overall structure ensures excellent pulse power and energy stability, while optimizing the beam quality;


③ The laser function parameter adjustment is a digital display design, which is convenient for operation, universal control interface, and strong compatibility;


④High beam uniformity, good bottom surface processing effect, easy to use and maintain.


Changes in the homogenization effect of the laser cleaning spot mode


Different laser spot output modes determine:


1. The degree of surface damage

             

2. Cleaning efficiency

Equipment optical parameters


 

3. Research on laser cleaning technology

Ruike 500W high-power pulsed laser in composite board cleaning application


Test parameters: 500W high-power pulsed fiber laser is equipped with a dedicated laser cleaning head. Under different frequencies and scanning speeds, by controlling the travel speed of the laser cleaning head, the spot layout is as shown in the figure below to complete precise and efficient cleaning.


 

The cleaning coating thickness is 111.5μm

Cross-sectional renderings after cleaning, no heat-affected effect, smooth cross-section, no damage to the substrate

Comparison of microscopic morphology and element distribution

Roughness consistency comparison


Conclusion analysis:


1. The content of most elements meets the stainless steel standard;


2. The proportion of iron element is rising, indicating that the oxide layer has been removed significantly;


3. The hardness index rises to meet the requirements; HR=35HRC;


4. Good roughness consistency;


Four, other industry applications


Wheelset cleaning (Picture 1), mold degreasing (Picture 2), rotor blade derusting (Picture 3), high-speed rail derusting (Picture 4), gear decontamination (Picture 5, Picture 6). (The picture comes from the Internet)


 

The application range of laser cleaning is very wide. As a major manufacturing country, laser cleaning/rust removal has great development potential in industrial applications. The occurrence of the Sino-US trade war has made domestic fiber laser manufacturers more important, and more and more domestic fiber laser manufacturers have realized that only by insisting on innovative and leading products can they enhance their core competitiveness. Only by mastering the core technology in our own hands can the opportunities of the Sino-US trade war outweigh the challenges. Since its establishment, Raycus Laser has been firmly committed to the development direction of a powerful country in science and technology, and has embarked on the vertical integration of the entire industry chain. Core components from chips to optical fibers have mastered key technologies through independent research and development and industrial mergers and acquisitions. A large-scale production. Under the general trend of domestic substitution, more and more companies have chosen self-produced, self-developed, and cost-controllable domestic laser equipment.

About Company

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DP GROUP, founded in 2016, offer professional laser solutions and sheet metal fabrication machinery. Headquartered in Hong Kong, we operate three factories in mainland China:
DPMach (Dongguan): Specializes in laser cutting, welding, and marking.
DGDY (Dongguan): Focuses on press brake machines with advanced Panel Bender technology.
DPQG (Foshan): Manufactures large tube laser cutting machines for pipes up to 800mm in diameter and 30 meters lenth.
We offer comprehensive OEM/ODM services and spare parts for diverse industries. Our R&D team of over 50 experts ensures cutting-edge innovations, while our international support team of 21 professionals provides global service.

 

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