The Application of Laser Processing Technology in the Jewelry Industry

In the jewelry industry, traditional processing methods are characterized by long production cycles and limited technical capabilities. In contrast, laser processing technology offers significant advantages. Let's explore the applications of laser processing technology in the jewelry industry.

1. Laser Cutting

In jewelry manufacturing, laser cutting is employed to create various metal jewelry items such as necklaces, bracelets, earrings, and more. Additionally, laser cutting can be used for non-metallic jewelry materials like glass and crystal. Laser cutting enables precise control over cutting locations and shapes, reducing waste and repetitive labor, thus enhancing production efficiency.

2. Laser Welding

Laser welding plays a crucial role in jewelry production, particularly for joining metal materials. By directing a high-energy laser beam, metal materials are rapidly melted and fused together. The small heat-affected zone in laser welding allows for precise control over welding locations and shapes, enabling high-precision welding and customization of intricate patterns. Compared to traditional welding techniques, laser welding offers faster speeds, higher precision, and greater stability.

Furthermore, laser welding can also be utilized for jewelry repairs and gemstone settings. Using laser welding technology, damaged parts of jewelry can be quickly and accurately repaired, while also achieving high-precision gemstone setting.

3. Laser Surface Treatment

Laser surface treatment encompasses various techniques such as laser marking, laser etching, and laser engraving, which employ the high-energy beam of laser to modify the surface of materials. Through laser surface treatment technology, intricate markings and patterns can be created on the surfaces of metal materials. This can be applied to jewelry for anti-counterfeiting labels, branding, product series identification, and more, enhancing the aesthetic appeal and artistic quality of the jewelry.

4. Laser Cleaning

In jewelry manufacturing, laser cleaning technology can be used for cleaning both metal materials and gemstones. For metal materials, laser cleaning can remove surface oxidation and dirt, restoring the original shine and purity of the metal. For gemstones, laser cleaning can eliminate impurities and inclusions on the surface, improving their transparency and brilliance. Moreover, laser cleaning can also be employed for jewelry repair and rejuvenation, effectively removing traces and imperfections from the metal surface, thus adding new decorative effects to the jewelry.

5. Laser Chiller

During the operation of laser equipment, the generation of high-energy laser beams results in the emission of a significant amount of heat from the equipment itself. If this heat is not promptly dissipated and controlled, it may have adverse effects on the performance and stability of the laser equipment. Therefore, to ensure the smooth operation of laser equipment and enhance production efficiency, it is necessary to install laser chillers for cooling.

Specializing in laser chillers for over 21 years, Teyu has developed more than 120 water chiller models suitable for over 100 manufacturing and processing industries. These laser cooling systems offer cooling capacities ranging from 600W to 41000W, with temperature control precision ranging from ±0.1°C to ±1°C. They provide cooling support for various jewelry manufacturing and processing equipment, such as laser cutting machines, laser welding machines, laser marking machines, and laser cleaning machines, thereby improving the efficiency and extending the lifespan of jewelry manufacturing and processing equipment.

Source: https://www.teyuchiller.com/the-application-of-laser-processing-technology-in-the-jewelry-industry

Laser Welding and Laser Cooling Technology for Advertising Signage

As laser technology has advanced, traditional welding techniques in the advertising industry such as argon arc welding, cold welding, and electric welding have gradually given way to laser welding. The laser welding machine for advertising signage is a specialized machine designed to be more suitable for welding advertising signage.

The laser welding machine for advertising signage uses the pulse energy of a laser beam to locally weld tiny areas of materials. Heat conduction diffuses the laser irradiation through the materials, creating a specific molten pool. This machine can achieve various welding methods such as spot welding, butt welding, overlay welding, and seal welding. It can weld a variety of metals and their alloy materials such as titanium, zinc, copper, aluminum, silver, gold, and different specifications of advertising fonts.

The characteristics of the laser welding machine for advertising signage

It features fast speed and high efficiency, which are dozens of times more efficient than ordinary welding methods.

After welding, the weld seam is smooth with no black marks or need for secondary processing.

This machine is suitable for various purposes and expands the scope of welding applications. 

The laser is adjustable, making it possible to meet the welding requirements of different specifications of fonts and patterns. 

It is easy to operate, saves time and effort, and is highly efficient.

Laser chiller is crucial to ensure the optimal performance of advertising laser welding machines.

To achieve flawless welding of advertising letters with a seamless appearance and improved efficiency, a professional laser chiller is essential. TEYU industrial chiller manufacturer offers precise temperature control and protection for various laser welding equipment, with a cooling capacity ranging from 600W to 41000W and temperature control precision ranging from ±0.1℃ to ±1℃. It is compatible with a range of laser welding equipment, including fiber laser welding, CO2 laser welding, and CNC welding, effectively stabilizing the laser output rate. With the help of TEYU industrial laser chillers, you can enhance the stability of your laser welding process, extend the lifespan of your laser equipment, and reduce your operational costs, making it a reliable and prudent choice!

Source: https://www.teyuchiller.com/laser-welding-and-laser-cooling-technology-for-advertising-signage

Usage Guidelines and Water Chillers for CO2 Laser Marking Machines

The CO2 laser marking machine is a vital piece of equipment in the industrial sector, employing laser technology to achieve high-precision, high-speed marking. It excels in producing clear text and intricate patterns on products while maintaining a swift marking pace, significantly enhancing production efficiency. Furthermore, its user-friendly operation, easy maintenance, and low operational costs have made it widely adopted in industrial production.

When using a CO2 laser marking machine, it's crucial to pay attention to the following aspects:

Cooling System: Before turning on the laser marker, ensure that it is correctly connected to the cooling water following the principle of low-temperature inlet and high-temperature outlet. Pay attention to the position of the water outlet pipe, ensuring that the circulating water can flow smoothly into the pipe and fill it. Check for air bubbles in the water pipe, and eliminate them if present. It is essential to use purified or distilled water with a temperature ranging from 25-30℃. During operation, replace the circulating water promptly or allow the laser marking machine to rest as needed. It is highly recommended to regularly inspect the grounding of the equipment: both the CO2 laser marking machine and the matched laser chiller should be properly grounded to prevent electrical leakage, which could lead to personnel injury or equipment damage.

Laser Care: The laser is the core component of the CO2 laser marking machine. Avoid any contamination of the laser's output port by foreign substances. Regularly check the laser's heat dissipation to ensure its proper functioning.

Lens Maintenance: Periodically clean the lenses and mirrors with a clean cotton cloth or cotton swab, avoiding the use of abrasive or chemical solvents that could damage the lens coatings. During the cleaning process, ensure that the equipment is in a shutdown state to prevent any accidental harm.

The vital role of the water chiller in CO2 laser marking

During operation, laser marking machines generate a significant amount of heat. If this heat is not promptly and effectively dissipated, it can lead to elevated equipment temperatures, which, in turn, can adversely affect the laser's performance, slow down marking speeds, and potentially damage the laser equipment. To ensure the stability and efficiency of a CO2 laser marking machine, it is common practice to use a chiller for cooling purposes.

TEYU CO2 laser chiller series offers two temperature control modes: constant temperature and intelligent temperature regulation. These laser chillers are designed with a compact structure, small footprint, and ease of mobility. They also feature output signal control capabilities and multiple functions such as cooling water flow rate control and high/low-temperature alarms.

Source: https://www.teyuchiller.com/usage-guidelines-and-water-chillers-for-co2-laser-marking-machines

Influencing Factors of Laser Cutting Machine's Lifespan

The lifespan of a laser cutting machine is influenced by several factors, including the laser source, optical components, mechanical structure, control system, cooling system(industrial chillers), and operator skills. Different components have varying lifespans. With regular maintenance, a laser cutting machine can typically last 5-10 years.

Laser Source Is One of the Core Parts of Laser Cutting Machines

The service life of the laser source depends on its type, quality, and usage conditions. For instance, fiber lasers can last over 100,000 hours, while CO2 lasers have a lifespan of around 20,000-50,000 hours.

Optical Components Also Impact the Laser Cutting Machine's Lifespan

Components such as the focusing lens and mirrors, besides the laser source, are essential. The materials, coatings, and cleanliness of these components influence the machine's lifespan, typically lasting around 1-2 years with proper maintenance.

The Mechanical Structure Also Plays a Role 

Components like guide rails, sliders, and gears are crucial. The materials, manufacturing processes, and environment directly or indirectly affect their performance and durability. Regular and appropriate maintenance can extend their lifespan to 5-10 years.

The Influence of Control System

The "control system" comprises components like controllers, servo motors, and drivers, each with distinct functions. The quality of these components and environmental factors influence their overall performance. Proper equipment storage management during daily operations, along with regular maintenance as per specifications, can effectively extend their service life (5-10 years).

The Role of Industrial Chiller

An industrial chiller is an essential cooling system for ensuring the continuous stability of the laser cutting equipment. TEYU industrial chillers feature an intelligent control system with multiple alarm functions, precisely regulating water temperature for optimal temperature control, ensuring the laser cutting machine operates at its best to enhance its overall performance and effectively prolong its lifespan.

The Importance of Operator Skills

Qualified technicians are essential to comprehend and execute the laser cutting machine's operational guidelines correctly. They can promptly identify equipment faults and handle them accurately, ensuring effective maintenance and care for the laser cutting equipment. Skillful operators significantly influence the machine's lifespan and have a crucial impact on the quality of laser processing.

Source: https://www.teyuchiller.com/influencing-factors-of-laser-cutting-machine-lifespan

Application of Laser Processing in Metal Furniture Manufacturing

The furniture industry is known for its ever-changing styles, with wood, stone, sponge, fabric, and leather being popular traditional materials. However, there has been an increasing market share for metal furniture in recent years, with stainless steel being the primary material, followed by iron, aluminum alloy, cast aluminum, and others. The shiny metal texture of stainless steel, along with its durability, rust resistance, and ease of cleaning has gained significant attention in the furniture industry. It is used as the main load-bearing structure for tables, chairs, and sofas, including components such as iron bars, angle irons, and round pipes, with a high demand for cutting, bending, and welding. Metal furniture includes household furniture, office furniture, and furniture in public places. It can be used independently as a product or combined with glass, stone, and wood panels to create a complete set of furniture, which is widely popular among people.

Laser Cutting Improves Metal Furniture Manufacturing

Metal furniture includes pipe fittings, sheet metal, rod fittings, and other components. The traditional processing of metalworking involves complex and time-consuming work, with high labor costs, which creates significant development bottlenecks for the industry. However, the development of laser technology has revolutionized the practicality of laser cutting machines, which has significantly reduced costs and increased efficiency in the metal furniture industry.

In the production process of metal furniture, metal planes, and metal plate cutting are involved. Laser cutting technology has become the main accelerator for this change, providing benefits such as arbitrary shapes, adjustable sizes and depths, high precision, high speed, and no burrs. This has greatly improved productivity, met the diverse and customized demands of consumers for furniture, and led the manufacturing of metal furniture into a new era.

Cutting and Welding of Stainless Steel Furniture

Regarding metal furniture, it is essential to mention stainless steel furniture, which is currently one of the most popular types. Stainless steel furniture is mostly made of food-grade 304 stainless steel, which has strong corrosion resistance and a high degree of surface smoothness. Stainless steel has a long service life, no paint or glue, and does not emit formaldehyde, making it an environmentally friendly furniture material.

The thickness of the sheet used in stainless steel furniture is generally less than 3mm, and the wall thickness of the pipe is less than 1.5mm. The currently mature 2kW fiber laser cutting machine can easily achieve this, with a processing efficiency of more than five times that of traditional mechanical cutting. Additionally, the cutting edge is smooth, without any burrs, and requires no secondary polishing, which greatly saves labor and cost for furniture manufacturers.

Stainless steel furniture involves some curved and bent parts that require stamping or bending, rather than laser processing.

When it comes to assembling complete sets of furniture, welding technology is mostly used to connect stainless steel parts, in addition to screws and fasteners. In the past, argon arc welding and resistance welding were commonly used, but spot welding was inefficient and often resulted in uneven welding and lumpy bumps at the joints. This required manual polishing and smoothing of the nearby stainless steel materials, followed by silver oil spraying, resulting in multiple processes.

Over the past few years, handheld laser welding equipment has gained popularity due to its lightness, flexibility, strong adaptability, high efficiency, and stable welding. As a result, it has replaced argon arc welding in many applications. With an estimated annual consumption of nearly 100,000 units, the required power for handheld laser welding ranges from 500 watts to 2,000 watts. Handheld laser welding can well solve the problem of traditional welding on stainless steel furniture, flexible for arc splicing and angle iron turning edge connection, with good welding stability, and needs no filler or specific gas. It is the preferred process for welding stainless steel materials with small thicknesses due to its increased efficiency and reduced labor costs.

The Development Trend of Laser in Metal Furniture Field

Laser equipment has penetrated rapidly into furniture manufacturing in recent years. Laser cutting is highly automated and produces cuts at extremely fast speeds. Typically, a furniture factory has three or more laser cutting machines that can meet the production capacity. Due to various metal furniture styles and shape design customization, welding of components tend to be more reliant on manual labor. As a result, one welder typically requires one welding machine for handheld laser welding, leading to an increased demand for laser welding equipment.

As consumers have higher requirements for the quality of metal furniture, it needs laser processing technology to show its advantages in design and beautiful craftsmanship. In the future, the application of laser equipment in the field of metal furniture will continue to increase and become a common process in the industry, continuously bringing incremental demand for laser equipment.

 

Supporting Cooling System for Laser Processing

Laser processing equipment to operate stably and continuously, it must be equipped with a suitable laser chiller for precise temperature control to reduce consumables, improve processing efficiency and extend equipment lifespan. TEYU laser chiller has 21 years of refrigeration experience, with more than 90 products used in over 100 industries (laser cutting machine chiller for laser cutting, laser welding chiller for laser welding, and corresponding handheld welding chiller for handheld laser welder). Featuring temperature precision up to ±0.1°C, plus stable and efficient cooling, TEYU Chiller is the best temperature control partner for your laser equipment!

Source: https://www.teyuchiller.com/application-of-laser-processing-in-metal-furniture-manufacturing

The future trend of important industrial equipment - the development of industrial chillers

As a leading industrial chiller manufacturer, TEYU excels in research, production, and sales, providing valuable insights into industrial water chiller trends:

 

Industrial chillers are indispensable equipment in manufacturing, serving a wide range of industries. TEYU industrial chillers find applications in over 100 sectors, including laser processing, machinery, laboratories, medical, welding, stone carving, 3D printing, UV inkjet, food marking, and plastic packaging. In future development, 3 major trends emerge for industrial chillers: miniaturization, eco-friendliness, and intelligence.

 

Firstly, with continuous advancements in core technology, factory equipment is moving towards lightweight and compact designs. Similarly, crucial industrial cooling equipment, like chillers, also follow this development trend. Therefore, TEYU chiller manufacturer, keeps up with the times, continuously researching and optimizing materials and core technology, striving to reduce chiller size and weight while ensuring quality. The newly launched 2023 TEYU chiller models, CWFL-1500ANW08 (2023 version) and CWUP-20 (2023 version) boast remarkable portability with smaller size, lighter weight, and higher efficiency, making TEYU chillers your ideal choice!

 

Furthermore, industrial chillers emphasize environmental friendliness and sustainable development. Previously, many industrial chillers used ammonia and fluorine as refrigerants, which were environmentally unfriendly. However, TEYU's current water chillers exclusively use eco-friendly refrigerants, ensuring no harmful emissions and greater environmental friendliness. Teyu is continuously optimizing fan noise pollution during operation by gradually switching to quieter axial fans. Sustainable and eco-friendly chillers will be a crucial direction for future industrial chiller development.

 

Lastly, with the emergence of intelligent AI, China's "Intelligent Manufacturing" will revolutionize the manufacturing industry, making industrial chillers smarter and more convenient, catering to various industrial manufacturing demands.

 

In conclusion, future industrial chillers will be smaller, more environmentally friendly, and more intelligent, providing industrial processing with more convenient and efficient cooling systems. TEYU is committed to developing high-quality, efficient, and environmentally friendly chillers, with 21 years of expertise in research, production, and sales of industrial chillers, offering customers a comprehensive refrigeration and temperature control solution!

Source: https://www.teyuchiller.com/future-trends-in-industrial-water-chiller-development

Challenges of Laser Processing and Laser Cooling of High Reflectivity Materials

The laser industry is rapidly advancing, particularly in large-scale manufacturing fields such as automobiles, electronics, machinery, aviation, and steel. These industries have adopted laser processing technology as an upgraded alternative to traditional processing methods, entering the "laser manufacturing" era.

However, laser processing of Highly reflectivity materials, including cutting and welding, remains a significant challenge. This concern is shared by most laser equipment users who wonder: Can the purchased laser equipment process Highly reflectivity materials? Does laser processing of highly reflective materials require a laser chiller?

When processing Highly reflectivity materials, there is a risk of damage to the cutting or welding head and the laser itself if there is an excessively Highly return laser into the laser interior. This risk is more pronounced for High-power fiber laser products, as the power of the return laser is significantly higher than that of low-power laser products. Cutting Highly reflectivity materials also poses a risk to the laser as, if the material is not penetrated, High-power return light enters the inside of the laser, causing damage.

What Is Highly Reflectivity Material?

Highly reflectivity materials are those with a low absorption rate near the laser due to their small resistivity and relatively smooth surface. Highly reflectivity materials can be judged by the following 4 conditions:

1. Judging by laser output wavelength

Different materials exhibit varying absorption rates for lasers with different output wavelengths. Some may have High reflection while others may not.

2. Judging by the surface structure

The smoother the material's surface, the lower its laser absorption rate. Even stainless steel can be Highly reflective if it is smooth enough.

3. Judging by resistivity

Materials with lower resistivity typically have lower absorption rates for lasers, resulting in Highly reflection. Conversely, Higher resistivity materials have Higher absorption rates.

4. Judging by surface state

The difference in the surface temperature of a material, whether it is in a solid or liquid state, affects its laser absorption rate. Generally, Higher temperatures or liquid states result in Higher laser absorption rates, while low-temperature or solid states have lower laser absorption rates.

How to Solve the Laser Processing Problem of Highly Reflectivity Materials?

Regarding this issue, every laser equipment manufacturer has corresponding countermeasures. For instance, Raycus Laser has designed a protection system on four-level anti-High-reflection light to address the problem of laser processing Highly-reflectivity materials. At the same time, various return light monitoring functions have been added to ensure real-time protection of the laser when abnormal processing occurs.

Laser chiller is needed to ensure the laser output stability.

The stable output of the laser is an important link to ensure High laser processing efficiency and product yield. The laser is sensitive to temperature, so precise temperature control is also essential. TEYU laser chillers feature temperature precision of up to±0.1℃, stable temperature control, a dual temperature control mode while the High-temperature circuit for cooling the optics and the low-temperature circuit for cooling the laser, and various alarm warning functions to fully protect the laser processing equipment for highly reflectivity material!

Source: https://www.teyuchiller.com/laser-processing-and-laser-cooling-of-high-reflectivity-materials

Application of High-Power Lasers in High-tech and Heavy Industries

In the past three years, due to the pandemic, the growth rate of industrial laser demand has slowed. However, the development of laser technology has not stopped. In the field of fiber lasers, ultra-high power fiber lasers of 60kW and above have been successively launched, pushing the power of industrial lasers to another level.

How much demand is there for high power lasers above 30,000 watts?

For multi-mode continuous fiber lasers, increasing the power by adding modules seems to be the agreed-upon way. In the past few years, the power has increased by 10,000 watts each year. However, the realization of industrial cutting and welding for ultra-high power lasers is even more difficult and requires higher stability. In 2022, the power of 30,000 watts will be used on a large scale in laser cutting, and 40,000 watts of equipment is currently in the exploration stage for small-scale application.

In the era of kilowatt fiber lasers, powers below 6kW can be used for cutting and welding of most common metal products, such as elevators, cars, bathrooms, kitchenware, furniture, and chassis, with thicknesses not exceeding 10mm for both sheet and tube materials. The cutting speed of a 10,000-watt laser is twice that of a 6,000-watt laser, and the cutting speed of a 20,000-watt laser is more than 60% higher than that of a 10,000-watt laser. It also breaks the thickness limit and can cut carbon steel over 50mm, which is rare in general industrial products. So how about high power lasers above 30,000 watts?

Application of high-power lasers to improve shipbuilding quality

In April of this year, French President Macron visited China, accompanied by companies such as Airbus, DaFei Shipping, and French power supplier Électricité de France.

Airbus, the French aircraft manufacturer, announced a bulk purchase agreement with China for 160 aircraft, with a total value of approximately $20 billion. They will also be constructing a second production line in Tianjin. China Shipbuilding Group Corporation signed a cooperation agreement with French company DaFei Shipping Group, including the construction of 16 super large container ships of Type 2, with a value of over 21 billion yuan. China General Nuclear Power Group and Électricité de France have close cooperation, with the Taishan Nuclear Power Plant being a classic example.

High-power laser equipment ranging from 30,000 to 50,000 watts has the cutting capability for steel plates over 100mm thick. Shipbuilding is an industry that extensively uses thick metal plates, with typical commercial ships having hull steel plates with a thickness of over 25mm, and large cargo ships even surpassing 60mm. Large warships and super large container ships may use specialty steels with a thickness of 100mm. Laser welding has faster speeds, less heat deformation and rework, higher weld quality, reduced filler material consumption, and significantly improved product quality. With the emergence of lasers with tens of thousands of watts of power, there are no longer limitations in laser cutting and welding for shipbuilding, opening up great potential for future substitution.

Luxury cruise ships have been considered the pinnacle of the shipbuilding industry, traditionally monopolized by a few shipyards such as Italy's Fincantieri and Germany's Meyer Werft. Laser technology has been extensively used for material processing in the early stages of ship construction. China's first domestically produced cruise ship is planned to be launched by the end of 2023. China Merchants Group has also advanced the construction of a laser processing center in Nantong Haitong for their cruise ship manufacturing project, which includes a high-power laser cutting and welding thin plate production line. This application trend is expected to gradually penetrate civilian commercial ships. China has the most shipbuilding orders in the world, and the role of lasers in the cutting and welding of thick metal plates will continue to grow.

Application of 10kW+ lasers in aerospace

Aerospace transportation systems primarily include rockets and commercial aircraft, with weight reduction being a key consideration. This imposes new requirements for cutting and welding aluminum and titanium alloys. Laser technology is essential for achieving high-precision welding and cutting assembly processes. The emergence of 10kW+ high-power lasers has brought comprehensive upgrades to the aerospace field in terms of cutting quality, cutting efficiency, and high-integration intelligence. 

In the manufacturing process of the aerospace industry, there are many components that require cutting and welding, including engine combustion chambers, engine casings, aircraft frames, tail wing panels, honeycomb structures, and helicopter main rotors. These components have extremely strict requirements for cutting and welding interfaces.

Airbus has been using high-power laser technology for a long time. In the manufacturing of the A340 aircraft, all aluminum alloy internal bulkheads are welded using lasers. Breakthrough progress has been made in the laser welding of fuselage skins and stringers, which has been implemented on the Airbus A380. China has successfully test-flown the domestically-produced C919 large aircraft and will deliver it this year. There are also future projects such as the development of the C929. It can be foreseen that lasers will have a place in the manufacturing of commercial aircraft in the future.

Laser technology can aid in the safe construction of nuclear power facilities

Nuclear power is a new form of clean energy, and the United States and France have the most advanced technology in the construction of nuclear power plants. Nuclear power accounts for approximately 70% of France's electricity supply, and China cooperated with France in the early stages of its nuclear power facilities. Safety is the most important aspect of nuclear power facilities, and there are many metal components with protective functions that require cutting or welding.

China's independently developed laser intelligent tracking MAG welding technology has been mass-applied in the steel liner dome and barrel of Units 7 and 8 at the Tianwan Nuclear Power Plant. The first nuclear-grade penetration sleeve welding robot is currently being prepared.

Following the trend of laser development, Teyu launched the CWFL-60000 ultrahigh power fiber laser chiller.

Teyu has kept up with the trend of laser development and has developed and produced the CWFL-60000 ultrahigh power fiber laser chiller, which provides stable cooling for 60kW laser equipment. With a dual independent temperature control system, it is able to cool both the high-temperature laser head and a low-temperature laser source, providing a stable output for laser equipment and effectively guaranteeing the fast and efficient operation of high-power laser cutting machines. 

The breakthrough in laser technology has given birth to a wide market for laser processing equipment. Only with the right tools can one stay ahead in the fierce market competition. With the need for transformation and upgrading in high-end applications such as aerospace, shipbuilding, and nuclear power, the demand for thick plate steel processing is increasing, and high-power lasers will assist in the accelerated development of the industry. In the future, ultra-high power lasers with a power of over 30,000 watts will be mainly used in heavy industry fields such as wind power, hydropower, nuclear power, shipbuilding, mining machinery, aerospace, and aviation.

Source: https://www.teyuchiller.com/application-of-high-power-lasers-in-high-tech-and-heavy-industries