Since the early 1980s, the automotive industry has been one of the main drivers of the high-power laser industry. This industry has strict requirements on the quality and reliability of laser sources. Compared to traditional manufacturing techniques, laser technology can bring greater benefits in the areas of cutting, welding and marking. Because 18650 laser pointer technology is more flexible than traditional technology and easy to automate, it can meet the core requirements of the entire industry. In the beginning, the laser was only used for simple cylindrical part welding, such as the automatic transmission components of a vehicle. Nowadays, lasers have been widely used in the process of processing the entire vehicle structure. Roof welding, door welding, three-dimensional cutting of hydroformed parts, door spring annealing, instrument panel welding, marking, etc. are just a few examples of a large number of laser applications. With the development of lightweight vehicles, new materials, new structures and new processes are constantly emerging, and the safety performance of automobiles is continuously improved.
Laser ranging technology is the first laser technology to be practically applied in the military. In the late 1960s, laser rangefinders began to be equipped with troops, which were widely used for reconnaissance surveys and weapon fire control systems because of their ability to quickly and accurately measure target distances. Laser guided weapons have high precision, simple structure, and are not susceptible to electromagnetic interference, and they play an important role in precision guided weapons. The astronomy laser pointer communication has large capacity, good confidentiality and strong anti-electromagnetic interference capability. Optical fiber communication has become the development focus of communication systems. Airborne, spaceborne laser communication systems and laser communication systems for submarines are also under development. A tactical laser weapon made of a high-power laser can blind the human eye and disable the photodetector. stage. Anti-satellite and anti-continental ballistics using high-energy laser beams may destroy military targets such as aircraft, missiles, and satellites. The application of strategic laser weapons that are close to practical missiles is still in the exploratory stage. Due to the small laser spot, high energy density, and fast cutting speed, laser cutting can achieve better cutting quality and extremely high cutting speed and efficiency, while reducing tool wear. The use of laser welding materials can avoid deformation, increase the type of welding materials, eliminate environmental factors, high quality and efficiency. The use of military laser pointer technology welding, its advantages are extremely high welding speed, stable welding quality, high welding precision, small thermal deformation of materials, and easy to integrate into the automation operating system, which is widely used in modern industrial production, with excellent reputation. Advanced welding methods. Laser welding has been widely used in automobiles, such as welding of automobile bodies, pipe welding, welding of automobile batteries, and plastic welding of instrument panels. Lasers have unique advantages in terms of welding strength and welding precision and speed. Laser cutting is also one of the most frequently used laser applications. Fiber lasers and CO2 lasers can be combined with standardized 2D and 3D cutting systems to cut low carbon steel, stainless steel, aluminum and other metals. When processing different parts of a car, car manufacturers take advantage of the advantages of laser cutting, such as high cutting edge quality, low heat input, and fast processing speed. Automotive parts and materials, including a variety of metals, such as airbag fabrics and composite materials used in automotive interiors, are cut using a laser. As a flexible processing tool, the laser can be easily integrated into robots and other automation devices and provides solutions for the cutting of various automation components and materials. In addition to traditional processes such as laser cutting and laser welding, lasers can also be used in a variety of surface treatment applications such as 532nm laser pointer hardening, laser de-layering, surface activation, and laser surfacing. In the laser surfacing process, the most well-known is laser cladding. The basic materials such as metal wire or powder can be melted by laser radiation to achieve metallurgical bonding. The dilution rate of the metal of the parent component is less than 5%. . The automotive processing industry usually uses powder for laser surfacing, which can be used as a protective film for workpieces to prevent wear and corrosion, as well as high temperature and corrosion resistance (liquid). In the automotive industry, the minimum distortion rate and high flexibility of the workpiece are two important criteria. Thermal microcracking and porosity are also avoided due to reduced heat input and the use of additive materials.
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Potentiometer is used to adjust resistance: potentiometer is a component that can adjust and change the resistance value arbitrarily, but using potentiometer to adjust resistance is inefficient, the accuracy of resistance control is not easy to control, and the labor cost is large.
Laser trimming resistance substrate by cutting short pulse 10mw laser pointer scanning, the resistor paste layer by laser heating gasification, the formation of a certain depth of the notch, thus changing the conductive cross-sectional area of the resistor body and the conductive length reached to below the target resistance to allow the body repair resistance deviation range, suitable for rapid mass production resistance. Sandblasting and resistance control: the resistance substrate is polished by spraying sand flow, so that the resistance slurry layer is worn, thus changing the conductive section area and the conductive length of the resistor body, and achieving the required resistance. Sand spray resistance is a conventional resistance adjustment scheme. The equipment price is low, but the precision of resistance adjustment is not easy to control, the speed is slow, and it is not easy to automate and batch production. The team uses a beam of laser to capture and move particles, and then controls the laser to create images. They take advantage of a near invisible light field to capture and move small particles and pass them through a space. When particles move, they are irradiated by red, green and blue 500mw laser pointer, and map the surface of the object to make it imaging. When the velocity of the particle moves fast enough, the three-dimensional stereoscopic image will be produced and the color gamut is large and the fineness is high. The speed is a little faster, and the objects in the image look like moving. This image can coexist with the entities in the same physical space and can be seen from any angle, which is not realized by the holographic technology at present. The research team has developed so far the most delicate mirror -- only one atom thick molybdenum selenide (MoSe2) thin section, the miracle of engineering will limit the physical world and a step forward. The researchers said that this thin mirror can be developed for the special sensor is very small, and the use of 50mw laser pointerinformation transmission computer chip. Scientists have explained that if electrons collide with a proton or light particle in the atom, electrons will probably move from the low level orbitals to the high level orbitals, so that an electron hole pair will form in the electric field. When exposed to light at certain wavelengths, the electrons around MoSe2 are likely to jump. The electrons are negatively charged, while the protons in the nuclei are positively charged. Therefore, these electron hole pairs will draw positive charges from the proton, making the behavior of holes behave like particles. The electronically negative electrons in the vicinity attract these "false" particles and, in some cases, pair up to form a quantum mechanical object called excitons. These excitons themselves release light, interact with the incident light and send them back in the way they are incident. In this way, these MoSe2 slices can work like a mirror. According to reports, the ultra-short ultra-short laser in the laboratory to create an unprecedented super-electromagnetic field, ultra-high energy density and ultra-fast time scale comprehensive extreme physical conditions in the desktop accelerator, ultrafast chemistry, attosecond science, materials Science, 200mw laser pointer fusion, nuclear physics and nuclear medicine, laboratory astrophysics and other fields have great application value. We all know that besides industrial applications, burning laser pointer technology has been widely used in many fields such as research, biomedicine and communications, which has played a great role in promoting the development of human science and technology.
Scientists have developed the world's first optoelectronic neuromorphic chip The research team from Princeton University in the United States has developed the world's first silicon photonic neuromorphic chip and has proven that it can speed up the operation nearly 2000 times, helping to promote artificial intelligence such as facial recognition, object recognition, natural language processing, machine translation Technical application development. The research team etched each node of the new chip in the form of a mini circular waveguide into a silicon base, allowing light to circulate through it. When light is input to the node, the output of the laser working at the node threshold is modulated, and the output of the high power laser is fed back to the node, creating a feedback circuit with non-linear features. With regard to the extent to which this nonlinear behavior mimics neural behavior, researchers have demonstrated that its output is mathematically equivalent to a "continuous-time recurrent neural network." Researchers used a network of 49 photon nodes to simulate the neural network and used it to solve the mathematical problems of differential equations. They found that this silicon photon neuromorphic chip can compare the arithmetic speed up 1960 times. The world's strongest X-ray laser to create a "mini black hole" The strongest X-ray laser plays an important role in exploring the internal structure and function of matter, and scientists in other countries also explore more unknown fields in this field. Researchers at Kansas State University were surprised to find that when they bombarded a single molecule with the most powerful X-ray laser in the world, a "mini-black hole" emerged. This intense laser destroyed molecules inside and out, leaving only a void, similar to a black hole in space. The researchers hope that this unexpected result may push the overall imaging technology for viruses and bacteria to develop and help scientists develop new drugs. When a molecule is irradiated with Linac Coherent Light Source (LCLS), the molecule loses more than 50 electrons at 30 femtoseconds (in the trillionths of a second), causing it to explode. LCLS is commonly used for the imaging of biological individuals, including viruses and bacteria. The researchers hope that through the experimental results of this molecular black hole, we can make better use of this star laser pointer for more valuable experiments. Lasers make electronic devices no longer dependent on semiconductor materials Scientists from the University of California, San Diego, have developed a new type of microelectronic device that could be replaced by processors made from semiconductor materials in future PCs. Engineers have developed a light-controlled microelectronic device that contains a metamaterial surface made of gold nanotubes. By laser irradiation, the super-surface energy to produce high-intensity electric field. The new microelectronic devices, which do not use semiconductor materials, may solve a difficult problem faced by modern microprocessors. The problem with processors that operate electronically depends on the fact that the electrons collide with atoms constantly, many of which may not be able to migrate to their destination - many electrons are lost during the processor's operation. This new microelectronic device attempts to solve this problem by "mimicking" the old-fashioned vacuum tube - of course on a microscale. Mushroom-shaped nanotubes in the device form Metasurfaces on silicon wafers, both separated by a layer of silicon dioxide. When a low DC voltage is applied and a low-energy infrared 2000mw laser pointer is applied, this structure produces a high-intensity electric field that allows electrons to "migrate" freely. New Laser Writing Technology Upgrades Graphene Structure As we all know, graphene can be used to manufacture a variety of electronic, optoelectronic devices, more scientists predict that graphene will "completely change the 21st century," is likely to set off a worldwide revolution in disruptive new technology and new industries. Researchers from Finland's Jyväskylä University and Taiwan, China, jointly found that laser-writing technology can change the two-dimensional structure of graphene carbon atoms into three-dimensional objects, and the graphene three-dimensional structure material has strong stability, Two-dimensional structure of different electrical and optical properties. The process application is similar to forging a metal into a three-dimensional form with a 3000mw laser pointer beam "hammer." Finally, through experiments and computer simulations, the author realizes that the graphene carbon atom two-dimensional structure to three-dimensional shape of the authenticity and its formation mechanism. In nature, the structure is determined by nature, without exception, the structural characteristics of graphene determines the graphene has a thin and hard, good transmittance, thermal conductivity, high conductivity, structural stability, electron transfer speed and other characteristics. The industry believes that graphene in electronic applications, according to the number of layers can generally be divided into single-layer graphene, double graphene, less graphene and multilayer graphene. Because the excellent properties of graphene will be significantly reduced with the increase of the number of layers, beyond the multi-layer will not have the excellent performance of graphene materials, the application of graphene in the electronics upgrade will lose the advantage. The two-dimensional to three-dimensional structure of the upgrade graphene applications opened up a new direction of application. Environmental requirements and the trend of lightweight make plastic more and more alternative industrial products in the metal part, and plastic green laser light welding relative to other welding technology, has more advantages:
Non-contact welding, no physical contact with the workpiece to be welded, no chemical reaction of the thermoplastic, operation in an industrial environment, suitable for medical and food industries requiring hygiene and safety. Medical industry is mainly used for injection systems, medical electronic equipment, a variety of artificial implants and stoma products. Laser beam shape and size can be controlled, so as to control the size of heat-affected zone and joint area, high flexibility and good flexibility. Not limited to the size and shape of the parts to be welded, to achieve two-dimensional or even three-dimensional welding, to provide a basis for diversified custom parts production. Welding speed, high weld strength, no flash, no residue, to ensure a good appearance of the welding area. Relevant data show that for ordinary passenger cars, the weight of non-metallic materials accounts for about 1/3, some of the larger proportion of models, plastic is one of the four non-metallic automotive materials. High-end car bumpers using plastic laser welding can achieve the best of both worlds. Other such as automotive filters, gas-liquid separator, car dashboard shell, electronic door openers, gearbox and other burning laser welding can play a good effect. Precise and firm, airtight, watertight, can greatly reduce thermal stress and vibration stress, the most suitable for precision electronic components and vulnerable components. Laser cleaning as a laser surface treatment technology in recent years has also become increasingly widespread concern and rapid development. Laser cleaning mainly through the low power, high energy density pulsed red laser pointer beam acting on the surface of the workpiece, so that the surface of the dirt, oxide, coating or coating heat generated instantaneous melting, ablation, evaporation or stripping, so as to achieve the workpiece Surface clean process. Laser cleaning is a dry cleaning, compared with the traditional mechanical and chemical cleaning methods, with a good cleaning effect, high control accuracy, no pollution to the environment, the basic damage to the matrix, are non-contact cleaning, etc., we can see, The cleaning process is a "green" cleaning process.
The UV laser works quickly in the production of the circuit, and the surface pattern can be etched on the circuit board in minutes. This makes UV lasers the fastest way to produce PCB samples. The R & D department notes that more and more sample laboratories are equipped with an internal UV laser system. Depending on the optical instrument, the size of the UV laser beam can be 10-20 μm, producing a flexible circuit trace. Although the use of laser beam production circuit is the fastest method of PCB samples, but the large-scale surface etching applications are best left to the chemical process. In addition to the short wavelength, the workpiece temperature is low, the presence of high-energy ultraviolet light to ultraviolet laser pointer can be applied to large PCB circuit board combination, from FR4 and other standard materials to high-frequency ceramic composite materials and polyimide, including flexible PCB materials and other materials are applicable. The difference in this material makes UV lasers the best choice for a wide range of PCB applications in a wide range of industrial applications, from the production of the most basic circuit boards, circuit wiring, to the production of compact embedded chips and other advanced processes are common. It is understood that today's mobile phones, computers, mobile wear equipment and other large use of PCB circuit board, electronic equipment production process, the need to identify the two-dimensional code to trace the circuit board to help enterprises more real-time, accurate and reliable production quality management. The traditional way of marking is to paste the paper on the product with ink label, but this way has many problems: the amount of material is large, the pollution is high, the labor cost is high, the mark is easy to fall off and so on. The laser processing without supplies, without manual participation, can significantly save labor costs, improve work efficiency, to avoid waste and pollution. At present, stainless steel laser cutting machine with its good beam quality, high precision, small kerf characteristics, smooth, flexible cutting arbitrary graphics are widely used in metal processing industry, there is no exception in the decoration industry, let's take a look at the application of stainless steel green laser pointer cutting machine in the decoration industry. Laser cutting system is constantly improving the high and new technology, information technology, compared with the traditional machinery manufacturing technology, another revolution, the stainless steel decoration engineering industry has a huge role in promoting. |
作者简单介绍一下自己。不需要很花哨,概括一下就行。 存档
January 2018
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