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All you need to know before buying a MOPA laser, the truth about MOPA technology There are many questions about the MOPA laser engraving, how many color can engrave? can engrave deep? whats the difference between a MOPA laser and other laser technologies? What are the advantages and disadvantages of the MOPA laser technology? Speed engraving At the moment to chose a MOPA laser, the customers are expecting to engrave colors over metals with the same speed as a Fiber laser engraver machine. But this is not possible, this two technologies are different, when engrave with color effects, the machine needs to mark at high frequencies with minimal hatch effect. This makes the engraving resolution high, but at the same time, makes the speed engraving very slow in comparison with other laser engraving technologies. For these reasons, you must reconsider buy this kind of technology if you are planning to engrave hundreds or thousands of pieces in one day. This technology is designed to mark a few pieces a day; it is not designed to mark many pieces per minute. What is the right way to use this technology? Even with the disadvantages that this technology may have, it is clear to say that the plastic engraving is rapid, smooth, and bright in comparison with a fiber laser engraving (q-switch), which makes it one of the favorite technologies for those that require to engrave plastic. But, Is not the UV laser the best technology for engraving plastic? Yes, the UV laser tech is the best technology for engraving all the plastics family, but there are many kinds of popular plastic use in the market that doesn't need a UV laser and can be marked with a MOPA laser. And remember that one of the main differences between a MOPA laser and a UV laser technology is the price, the UV laser is one of the most costly laser technologies in the market. But, what about the color engraving? There are still many applications for this color engraving, and every client is free to choose this technology for engraving color over stainless steel. The purpose of this blog is to advice about the advantages and disadvantages of this technology, before our clients purchase a MOPA laser.

Compared with conventional laser markers, high-output lasers can perform deeper engraving with the same marking time and faster engraving with the same depth. Fibre laser marking is the solution to shorter marking time and deeper engraving needs. D: Depth T :Time * These are representative values. Values may vary depending on workpiece and marking conditions.

Understand Fiber Laser Marking Machine Fiber laser marking machines are designed to meet the needs of manufacturers who mark codes and other information on robust, high-density materials such as metals and plastics. Fiber laser marking, also known as Solid-State Laser (SSL), operates by delivering a wavelength of 1.064 micrometers, 10 times shorter than that generated by a CO2 laser. Due to this much smaller focal distance, the intensity of fiber laser system is almost 100 times higher than CO2 systems with a similar power output, making fiber lasers ideal for coding on high-density packaging materials such as metal and plastics. Industries with demanding production schedules and increasing throughput expectations -like beverage, extrusion, and pharmaceuticals - need lasers that can keep pace and provide the appropriate level of contrast. Compared to traditional CO2 laser sources, fiber lasers can achieve better mark contrast at faster speeds. Advantages of Fiber Laser Marking Technology 1.Fast and Cost-Effective Laser marking is a fast, non-contact application that requires zero consumables. With nothing to repair or replace, laser marking costs are negligible. Because of zero-maintenance laser, laser markers have exceptional availability, resulting in high part throughput and fast ROI. 2.Best Industry Reliability Fiber laser marking solutions are configured with the user in mind. Typically supplied as a complete solution with fiber laser, scanning head and control software, these solutions are easily programmed for complex logo images, single part serialization numbers, or automatic generation of individual 1D and 2D data matrix codes. 3.Permanent Marking Fiber lasers are available in a wide range of options so the marking process can be matched precisely to the materials and applications. From the deep engraving of automotive components to the permanent black marking of medical devices that must withstand continued sterilization,fiber lasers produce marking that endures.

Fibre Laser Marking On this page, we explain marking examples and characteristics of fibre laser markers, which are perfect for applications such as black-annealed marking and deep engraving into metal. Applications Fibre laser markers have a wavelength of 1090 nm, which is within the standard wavelength range, and are capable of marking a wide range of materials, including metals and resins. Their high power is particular suited for black-annealed marking and deep engraving on metal. On the other hand, fibre laser markers cannot be used to mark transparent objects like glass as the light passes through them. Light wavelength distribution map A :Ultraviolet range B: Visible range C: Infrared range

What is plasma? To properly explain how a plasma cutter works, we must begin by answering the basic question [What is plasma?In its simplest terms, plasma is the fourth state of matter. We commonly think of matter having three states: a solid, a liquid, and a gas.Matter changes from one state to the other through the introduction of energy, such as heat.For example, water will change from a solid (ice) to its liquid state when a certain amount of heat is applied.If the heat levels are increased, it will change again from a liquid to a gas (steam).Now, if the heat levels increase again, the gases that make up the steam will become ionized and electrically conductive, becoming plasma.A plasma cutter will use this electrically conductive gas to transfer energy from a power supply to any conductive material, resulting in a cleaner, faster cutting process than with oxyfuel. The plasma arc formation begins when a gas such as oxygen, nitrogen, argon, or even shop air is forced through a small nozzle orifice inside the torch.An electric arc generated from the external power supply is then introduced to this high pressured gas flow, resulting in what is commonly referred to as a [plasma jet".The plasma jet immediately reaches temperatures up to 40,000° F, quickly piercing through the work piece and blowing away the molten material. Handheld Operation In a typical handheld plasma system, the electrode and nozzle consumable parts are in contact with one another inside the torch when in the OFF state. When the trigger is squeezed, the power supply produces a DC current that flows through this connection, and also initiates the plasma gas flow. Once the plasma gas (compressed air) builds up enough pressure, the electrode and nozzle are forced apart, which causes an electrical spark that converts the air into a plasma jet.The DC current flow then switches from electrode to nozzle, to a path between the electrode and work piece. This current and airflow continues until the trigger is released. Precision plasma operation Inside a precision plasma torch, the electrode and nozzle do not touch, but are isolated from one another by a swirl ring which has small vent holes that transform the plasma gas into a swirling vortex.When a start command is issued to the power supply, it generates up to 400VDC of open circuit voltage and initiates the perflow gas through a hose lead set to the torch. The nozzle is temporarily connected to the positive potential of the power supply through a pilot arc circuit, and the electrode is at a negative. Next, a high frequency spark is generated from the Arc Starting Console which causes the plasma gas to become ionized and electrically conductive, resulting in a current path from electrode to nozzle, and a pilot arc of plasma is created. Once the pilot arc makes contact to the work piece (which is connected to earth ground through the slats of the cutting table), the current path shifts from electrode to work piece, and the high frequency turns off and the pilot arc circuit is opened. The power supply then ramps up the DC current to the cutting amperage selected by the operator and replaces the preflow gas with the optimum plasma gas for the material being cut. A secondary shielding gas is also used which flows outside of the nozzle through a shield cap. The shape of the shield cap and the diameter of its orifice forces the shield gas to further constrict the plasma arc, resulting in a cleaner cut with very low bevel angles and smaller kerf.

The rapid development of agricultural machinery industry urgently needs modern processing technology. With the continuous upgrading of agricultural machinery products and the development of new products, new requirements have been put forward for new processing methods such as cad/cam, laser processing technology, numerical control and automation technology. The application of these advanced technologies will accelerate the modernization process of my country's agricultural machinery. The advantages of laser cutting machine in the agricultural machinery industry: Sheet metal processing parts of agricultural machinery products generally use 4-6mm steel plates. There is a wide variety of sheet metal parts and the update speed is very fast. The traditional sheet metal processing parts of agricultural machinery products usually use the punching method, and the mold loss is large. Under the same conditions, it reflects the flexibility of laser processing. Laser cutting is to irradiate the cut material with a high power density laser beam, so that the material is rapidly heated to the gasification temperature and evaporated to form holes. As the beam moves on the material, the hole continuously forms a narrow (such as about 0.1mm) slit to complete the cutting of the material. Laser cutting machine processing not only has narrow cutting seam, small deformation, high precision, high speed, high efficiency and low cost, but also avoids the replacement of molds or tools and shortens the production preparation time cycle. At the same time, it also has the advantages of thin slit, small heat-affected zone, good quality of cutting surface, no noise during cutting, good verticality of slit edge, smooth cutting edge, easy automatic control during cutting process, etc.

There is no need to use electrodes, and there is no concern about electrode pollution or damage. And because it does not belong to the contact welding process, the wear and deformation of handled fiber laser welding machines and tools can be minimized. The laser beam is easy to focus, align, and be guided by optical instruments. It can be placed at an appropriate distance from the workpiece and can be re-guided between machines or obstacles around the workpiece. Other welding rules cannot be used because of the above space restrictions. The heat input can be reduced to the minimum required amount, the metallographic change range of the heat-affected zone is small, and the deformation caused by heat conduction is also the lowest. The laser beam can be focused in a small area and small and closely spaced parts can be welded. The workpiece can be placed in a closed space (under the control of vacuuming or an internal gas environment). When welding thin materials or small-diameter wires, there will be no trouble of reflow like arc welding. There is a wide range of weldable materials, and various dissimilar materials can be joined with each other. No vacuum or radiation protection is required. It is not affected by the magnetic field (arc welding and electron beam welding are easy), can accurately align the weldment. We are a fiber handheld laser welding supplier, please feel free to contact us if you need them.

Manual laser welding is used more frequently in industrial processes because it has a wider range of applications than traditional welding because less heat is generated because the beam is so concentrated. This means that much less heat is transferred to the workpiece, the metallographic structure is less affected, and the weld quality is much higher than with conventional forms of welding. Hand laser welding process parameters 1. Laser pulse waveform Laser pulse waveform is an important issue in laser welding, especially for sheet metal welding. When the high-intensity laser beam hits the surface of the material, 60~98% of the laser energy will be lost by reflection on the metal surface, and the reflectivity will change with the surface temperature. During the laser pulse, the reflectivity of the metal changes greatly. 2. Power density Power density is one of the most critical parameters in laser processing. Higher power density that heats the surface layer to boiling point in microseconds and produces a lot of vaporization. Therefore, high power density is beneficial for material removal processes such as punching, cutting and engraving. For lower power densities, it takes a few milliseconds for the surface layer temperature to reach the boiling point, and before the surface layer evaporates, the bottom layer reaches the melting point and a good fusion weld is easily formed. Therefore, when performing laser welding, the power density ranges from 10 4 to 10 6 W/cm 2 . 3. Laser pulse width Pulse width is one of the important parameters of manual laser welding. It is not only an important parameter different from material removal and material melting, but also a key parameter that determines the cost and volume of processing equipment.

Laser engraving technology is slowly entering our daily life. When we use laser engraving patterns, we often encounter such a problem: "Why is the actual effect of laser engraving uneven?" 1. Mark the content of the corresponding area with off-focus marking: The method of off-focus marking must take into account the problem of laser energy. This is because each focusing mirror has a matching focal depth area, and the off-focus method is used. It is easy to cause the large area marking pattern, the edge is at the critical point of the depth of focus or beyond the depth of focus area, which is easy to cause the actual effect of non-uniformity. 2. Thermal lens phenomenon: When the light passes through the optical lens (refraction, reflection), the lens will be hot and cause small deformation. This deformation will raise the focus of the collected light and shorten the focal length. If the machine is fixed and the distance is adjusted to the focal point, after a certain amount of time the light is turned on, the energy density of the light acting on the raw material will change due to the thermal lens phenomenon. 3. The output light spot of the paid-in light is covered, that is, the light spot of the paid-in light beam is missing after passing through the galvanometer and field lens, and it cannot be rounded: The light-paying output head, the fixed fixture and the galvanometer are not aligned, which causes the light to pass through the vibration. A part of the light spot is covered by the lens, and the light spot on the frequency doubling film is non-circular after being collected by the field lens. There is another situation, that is, the galvanometer deflection lens is damaged, and when the light beam passes through the damaged area of the lens, it cannot be effectively reflected. Therefore, the laser energy of the laser beam passing through the damaged area of the lens is different from that of the non-damaged area of the lens, and the result is that the light energy acting on the raw material is not the same. 4. Due to the raw material, such as the thickness of the film on the surface of the raw material is not the same or the physical properties are changed: The raw material is particularly sensitive to the response of the light energy. Generally, under the same raw material, it is corresponding when the light energy reaches the damage threshold of the raw material. When the thickness of the coating on the surface of the raw material is different, or some other physical processes are not uniform. 5. The laser engraving machine equipment is not aligned on the same horizontal plane, that is, the photoconductor lens or the field lens lens and the production and processing table are not on the same level: Since the two are not on the same level, the paid light beam will reach the production and processing items after passing through the field mirror. The length of the distance is inconsistent, and the result is that the energy that falls on the produced and processed items will have different energy densities.

With the continuous progress of society and the continuous improvement of work requirements, many people have been in the state of indoor computer office for a long time, and their physical fitness is also declining. In addition to outdoor aerobic running, other fitness equipment is also used. The fiber laser tube cutting machine is specially used for the processing of fitness equipment, which can effectively improve the quality and precision of the equipment and solve the production problems of fitness equipment. Common fitness equipment is mostly tubular, and traditional tube processing is accomplished with band saws, drill presses, and specialized milling machines. This process does not guarantee accuracy and aesthetics. In the production process, a lot of labor costs are used, and the turnaround time of a production process is long, which is not conducive to production efficiency. The traditional processing technology can no longer meet the current production needs, and new processing methods need to be introduced. With the popularization and application of fiber laser tube cutting machines, the processing and production efficiency of fitness equipment has been significantly improved. Fiber laser pipe cutting machine has the following advantages: 1. High precision: The traditional pipe processing is mostly cut by physical cutting, and there are differences in each section of short pipe. On the contrary, the fiber laser pipe cutting machine adopts software programming design to complete multiple processing procedures at one time, and the processing accuracy is high and stable for many times. 2. High efficiency: The fiber laser pipe cutting machine can cut a straight line length of more than 10 meters per minute, and the processing speed is much higher than the traditional processing method. Fiber laser pipe cutting machines have efficient cutting capabilities, which can significantly improve production efficiency. 3. Strong flexibility: The fiber laser pipe cutting machine can flexibly process pipes of various shapes. As long as the graphics are designed in the programming software, and the pipe is clamped with a clamp, it can be automatically cut. 4. Automatic feeding and batch processing: The standard pipe length is 6 meters, and the traditional processing method requires heavy clamping, while the fiber laser pipe cutting machine can simply complete the clamping and positioning of several meters long pipes, and can realize automatic feeding and batch processing.

Now the laser technology is becoming more and more mature, especially in terms of laser marking machine, whether it is metal or non-metal industry can be marked, laser marking is especially suitable for processing, the graphics and text produced by laser marking are exquisite and beautiful, and cannot be wiped. , it will not fade or benefit due to the long time, which can not only improve the grade of the product, but also play a role in preventing cross-selling and counterfeiting. In order to meet the needs of various industries, the laser marking machine has developed a series of requirements. Different series are aimed at different materials in different industries, and the integrated cabinet design is generally used for laser marking. This kind of planning makes the laser marking machine more efficient. Small size, does not take up space. There are basically two types of laser marking machines, one is cold processing and the other is thermal processing. These two processing skills are mainly aimed at different raw materials. Generally, thermal processing is aimed at the metal industry, and can be processed for the plastic industry that cannot be heated. . Laser marking cold processing: Cold processing is generally used on green light marking machines and ultraviolet laser marking machines. Cold processing is a new high-tech technology that has only come out in recent years. The surface of the raw material absorbs laser energy, causing non-thermal damage to the material. Because it is selected by cold processing, it will not cause problems such as burning, black edges, and deformation on the workpiece. Laser marking thermal processing: The high-energy laser beam selected for thermal processing irradiates the surface of the workpiece, causing a thermal reaction in the irradiated area, allowing its temperature to rise to achieve roasting, dissolution, evaporation and other phenomena, so as to achieve the final order we ordered. Target effect, this kind is mainly used in fiber laser marking machine, co2 laser marking machine, semiconductor laser marking machine. Whether the tube is cold processed or hot processed, the contribution of the laser marking machine to the industrial symbol is irreplaceable. The high-quality graphics and text of the laser marking machine logo, inorganic pressure processing, no consumables, no noise, and achievable The advantages of assembly line production make it an indispensable member of industrial processing, especially in the current electronic and electrical industry, the traditional symbol method is simply fading and erasing, which may lead to not knowing what kind of product this product is, such as re-testing It also requires a lot of manpower and material resources, and it is now destined that the laser marking machine will replace the traditional marking method.

We have to admit that mobile phones are a necessity in human daily life. Throughout the market, there are various different brands of smartphones. To highlight their brand, manufacturers are willing to make a logo on the cover of the smartphone. So here is a question. The phone case is so thin, how did the manufacturer engrave the logo on the case? Well, the answer is thanks to laser markers. Laser marking machines make it easier to "engrave your logo". The working principle of the laser engraving machine: The laser generator in the laser marking machine generates a high-energy continuous laser beam, and then focuses the high-energy laser beam on the surface of the mobile phone case. As a result, the surface material is instantly melted or even vaporized under the action of the high-energy laser beam. Through a computer program, the path of the laser light on the surface of the material can be controlled. We can engrave any LOGO we want on the phone case. The laser marks engraved by the laser marking machine are permanent, beautiful and wear-resistant. At present, there are three kinds of popular laser marking machines: fiber laser engraving machine, CO2 laser engraving machine and ultraviolet laser engraving machine. They have different laser sources to process different materials. For better engraving effect, fiber laser marking machine is suitable for metal mobile phone case; CO2 and UV laser marking machine is suitable for plastic mobile phone case. Vmade laser marking machines have longer service life and a more stable performance. Contact us if you need more detailed information about it.

1. Strictly follow the regulations, follow the principles of turning on the power supply, turning off the power supply, etc., turn on the machine, and do not force it to be turned off or turned on. 2. Turn on the air switch, emergency stop, key switch (see if there is an alarm display on the temperature of the water tank) 3. Turn on the computer and wait for the computer to fully start before turning on the Start button. 4. Turn on the motor in turn to make the buttons of energy, follow-up, laser and red light. 5. Start the machine and import the CAD drawing. 6. Adjust the initial processing speed, tracking delay and other parameters. 7. Adjust the focus, center, etc. of the laser cutting machine.

First, what is the thickness of the cut? Generally speaking, laser cutting is recommended to cut carbon steel up to 12mm and stainless steel up to 6mm. There is a misunderstanding that needs to be corrected. The cut thickness of laser cutting is not a high quality cut thickness. What does it mean? For example, the cutting thickness is 16mm, that is, the machine can cut 16mm, but it is not suitable for long-term cutting of 16mm. Just like the maximum speed of a car is 200 yards, it cannot run 200 yards directly, which will affect the life of the machine. Secondly, regarding the width, in fact, the mainstream in the market is 3015, which is 3 meters by 1.5 meters. The width is not a problem. Generally, companies have many widths for customers to choose. Then, regarding the degree of burr, this is actually a concern of customers. Generally speaking, solid yag has a little burr, which is mainly determined by the cutting thickness and the gas used. Generally, there is no burr below 4mm, the gas nitrogen effect is better, the oxygen effect is the second, and the air effect is poor. The advantages of metal laser cutting are on thin plates. If you want to cut thick plates, it is recommended to choose CO2 cutting machine and water cutting. Also, if you want less burrs, you can choose a fiber laser cutter, which cuts very smooth and fast. About the configuration of the laser cutting machine. With the development of the laser industry, there are more and more brands of laser cutting machines, the prices are becoming more and more chaotic, and the configuration of the machinery is also deviated. Many manufacturers ignore customers under the brand name. Here, I want customers to pay attention to the core part of laser cutting: whether the laser and laser head are imported or domestic, brand or non-brand. At the same time, other components of laser cutting, such as whether the motor is imported servo motor, guide rail, bed, etc., affect the cutting accuracy of the machine to a certain extent. A special point to pay attention to is the cooling system of the laser cutting machine - the cooling cabinet. Many companies directly use household air conditioners for cooling. In fact, everyone knows that this effect is very bad. A better way is to use industrial air conditioners. A dedicated machine can achieve better results.

When we setting parameters, it is necessary to carry out accurate coordination to make laser marking more perfect. So what factors will affect the efficiency of our fiber laser marking machine? 1. Fiber laser marking machine marking depth. If the surface marking depth is slightly larger, it is necessary to increase the calibration parameters and increase the laser power, which will take a certain time to calibrate the depth, resulting in a decrease in the overall marking speed. Optical cable laser marking machine improves the efficiency of daily work. 2. The optical fiber laser marking machine stimulates the light spot generated by focusing the light spot. The light spot passes through the light spot of the focusing mirror, and the smaller the light spot is, because the size of the light spot is small. In fact, there may be a slight effect on the spot quality due to other interferences. 3. The size of the content marked by the fiber laser marking machine, the marking of large content will deflect the galvanometer to meet the maximum marking. But doing so is slower than missing content marking. 4. Compared with the marking speed, the density of the label of the fiber laser marking machine takes a long time for intensive marking. For equal-format marking, the sparse marking only takes 2 minutes for the UV laser marking machine, while the intensive marking may take 5 minutes, after all, the marking density is high.

Common welding methods can generally be divided into laser welding and traditional welding (such as arc welding). Currently, laser welding is becoming more and more popular. What is laser welding? Laser is a special kind of light. Laser welding is a high-tech welding method that uses a high-energy beam to focus metal materials to generate high temperature for welding. Laser welding is an important innovation for applications in the material processing industry. At present, laser welding machines are mainly used for precision welding of various metals. The principle of this welding is to heat the surface of the workpiece through high-energy laser radiation, and the heat on the surface of the metal workpiece diffuses into the interior through thermal conduction. By controlling the parameters of the laser welding machine, such as laser pulse width, energy, peak power, repetition frequency and other parameters, the workpiece is melted to form a specific molten pool, thereby completing the welding process. What is the difference between laser welding and traditional welding? When welding metals by traditional welding methods, the welds are relatively rough, the welds and welds are relatively large, and more post-processing work is required. Unlike traditional welding, laser welding is a delicate welding method. Laser welds are very small. In addition, laser welding is also much faster than ordinary welding. What's more, laser welding has no radiation and is harmless to people.

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Laser marking machine is a device that can make permanent marks on various products. When you use it as a deep marking machine, it can also be called a laser engraving machine. At present, there are mainly three types of laser marking machines on the market, namely fiber laser marking machine, carbon dioxide laser marking machine and ultraviolet laser marking machine. Why do we need different laser marking machines? Because different laser engraving machines are suitable for different materials. For example, fiber laser marking machine is the best choice for metal products, CO2 laser engraving machine can mark wood products perfectly, and UV laser marking machine has good performance on glass materials. Below, we will introduce some industries in which laser marking machines are widely used. Industry 1: Making jewelry and crafts Romance is human nature. Many people like to engrave some special characters and symbols on their jewelry. Before the invention of the laser marking machine, if you want to engrave on jewelry, you need to do it manually with the help of tools. However, laser engraving machines are fully automatic devices. Compared with manual engraving, the effect of laser marking is more delicate. Industry 2: Hardware Parts In order to clearly record the production batch and production date, laser marking machines have been used to carry out permanent laser marking on hardware. In addition, laser engravers are widely used to mark moving parts and marine parts. Industry 3: Customized gifts Customizable gifts are becoming more and more popular among us these days. As a result, the technology for making customizable gifts has improved. Laser marking machines play a very important role in this field. Industry 4: Electrical Components In this industry, very precise parts are produced, such as circuit boards, electronic components, etc., so it is necessary to make traceability codes on these products. Laser marking machines can help make permanent marks on electrical components. One of the advantages of laser marking is that the product cannot be damaged by laser marking. If you want to know more about laser machines, please feel to contact us!

Today, laser marking machines are used in many industries. For those who want to own a laser engraving machine, they first need to understand the difference between different laser marking machines. Today, we will introduce the difference between fiber laser engraving machine and CO2 laser engraving machine. Fiber Laser Marking Machine Co2 Laser Marking Machine The difference between fiber laser marking machine and CO2 laser marking equipment is mainly reflected in three aspects. First, they use different laser transmitters. Fiber laser engraving machines use fiber optic transmitters, while CO2 laser marking machines use CO2 gas transmitters. Secondly, the laser wavelengths of fiber laser engraving machines and CO2 laser engraving machines are different. The laser wavelength of the former is 1064 nm, and the laser wavelength of the latter is 10.64 μm. Third, fiber laser engraving machine and CO2 laser engraving machine are suitable for different materials. Generally speaking, fiber laser marking machine can be used for metal materials and dark non-metal materials. CO2 laser marking machine is used for non-metallic materials, including paper, wood, denim, glass, rubber, etc. If you are looking for high quality laser marking machine, you can always contact us. The professional sales and engineers of Jinan Vmade CNC Machine Co., Ltd. will provide you with the most suitable solution!

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