Lasers, along with atomic energy, semiconductors and computers, were among the “four new inventions” of the 20th century and had a profound impact on the development of human civilization.
The emergence of the laser not only transformed optics but also influenced other scientific systems, including physics.
Furthermore, its impact extends to all aspects of life, particularly industrial production and computers.
It can be said that lasers are ubiquitous in modern processing industries.
Why use blue light laser
When it comes to laser selection, infrared lasers are commonly used in industries for cutting, cladding and welding operations. However, for non-ferrous metals such as copper, aluminum, gold and silver, the absorption of laser light is very low. This often causes welding processes to run irregularly, resulting in production errors and scrap.
To obtain a high absorption rate for these metals, it is ideal to use blue light with a wavelength of 450 nm.
Compared to infrared lasers, blue light has approximately 2 to 10 times better metal processing performance and is efficient for cutting, cladding and welding metals such as copper and aluminum.
Furthermore, the advantages of blue light laser technology include
- Low energy consumption costs
- Significantly reduced spatter and high weld quality
- Excellent cutting, welding and coating speed and quality
- Reduced material absorption threshold and controllable processability
Blue light laser applications
1 . New energy vehicle manufacturing
In the field of new energy vehicle manufacturing, blue light lasers have a wide range of applications in the production of batteries and automotive parts.
① Power battery positive and negative pole pillar welding
New source vehicle power battery pole materials are copper and aluminum
② Motor stator welding
two . Copper coating for antibacterial effect
Since ancient times, people have used copper to transport and store water, and to make pipes and barrels, as noted by the Egyptians and Greeks. They noticed that items made from copper had the ability to prevent water from deteriorating and protect the wood from parasites.
Recent studies have shown that copper and copper alloys have bactericidal and antibacterial properties, even in unmodified metals. These materials have been found to be 99% efficient at killing viruses within 2 to 6 hours.
Using blue light lasers to cover frequently touched surfaces such as handrails and door handles in facilities such as hospitals, nursing homes, schools and public transport can create a healthier environment by reducing the risk of bacterial and viral infections.
3 . Laser repair of worn parts
Laser cladding technology meets a wide range of engineering needs to repair high-tech engineering components that have long production cycles, high processing costs and high prices. It also allows optimization of resource allocation, while saving precious and rare metal materials, reducing energy consumption and saving money.
Laser cladding repair is mainly used to repair the mold with laser cladding alloy powder.
4 . New laser medical or healthcare industry
Treating mood disorders
According to the results of relevant foreign studies, blue light laser can have miraculous effects in treating depression, insomnia and other diseases, as well as sub-optimal health conditions, under certain levels of irradiation intensity and duration.
Heart d discomfort t treatment
Laser myocardial revascularization is currently considered an effective alternative to conventional treatments for heart disease.
The thermal effect of laser light on myocardial tissue is used to create multiple micro-holes in the ischemic area of the myocardium using a high-intensity laser beam. This process directs blood from the heart chambers to the ischemic area of the myocardium, improving myocardial blood microcirculation and achieving the desired treatment result.
5 . Exploration of marine resources and underwater communication
When light enters the sea, its energy is attenuated by the action of seawater.
Seawater has varying attenuation coefficients for different wavelengths of light. Among visible light wavelengths ranging from 200 to 800 nm, blue light between 400 to 450 nm has the lowest attenuation coefficient.
This principle has led to the widespread use of blue lasers for underwater communication, sensing and other applications. Blue lasers are also useful for detecting marine fishing resources and underwater military activities.
Additionally, blue lasers can also detect the ideal ozone level.
