Laser cutting has no burrs, wrinkles, and high precision, which is superior to plasma cutting
* 来源: * 作者: * 发表时间: 2022-10-19 2:43:48 * 浏览: 967
How do you avoid these failures as a steel structure manufacturer? The following four recommended maintenance techniques for reducers: Firstly, during the operation of the fiber laser cutting machine, if the oil temperature rises above 80 ℃ or the oil pool temperature exceeds 100 ℃ and produces abnormal noise, the machine should be stopped from use. The cause should be checked, the fault must be eliminated, and the lubricating oil must be replaced. Previously, it could continue to operate. Secondly, it is necessary to wait for the reducer to cool down without the risk of combustion, but it should be kept warm because after complete cooling, the viscosity of the oil increases and it is difficult to discharge the oil. Attention: Cut off the transmission power to prevent accidental power supply. Thirdly, the oil should be changed for the first time after 300 hours of operation, and the quality of the oil should be checked regularly during future use, and any oil mixed with impurities or spoilage should be replaced in a timely manner. In general, the new oil should be replaced after 5000 hours of operation or once a year to allow the gearbox to run continuously for a long time. The new oil should also be replaced before the gearbox is retired for a long time. The reducer should be filled with the same oil as the original brand, and should not be mixed with oil of different grades. It is allowed to mix oil of the same grade but different viscosities. 4、 Users should use and maintain rules and regulations reasonably, carefully record the operation of the reducer and any problems found during inspection, and strictly follow the above regulations..
Dongying beam picking production 1. Operation requirements and maintenance: CO2 laser requires optical path adjustment before use. The condition of the optical path will directly affect the cutting effect of the workpiece, so manual adjustment of the optical path and regular maintenance are required; The thermal lens effect of YAG solid-state laser is significant and requires frequent maintenance; Fiber laser fiber transmission, no adjustment, no maintenance, high stability, easy operation. 2. Cutting speed and effect. The cutting speed of fiber laser is 2-3 times that of CO2 laser of the same power, and its advantages are particularly prominent in the cutting process of metal sheet. It has excellent performance in the other two laser cutting machines, with good cutting quality, small gaps, and neat edges. 3. Material Applicability and Application Industries CO2 lasers have a wider range of material applicability, while fiber lasers are more suitable for metal materials including aluminum, copper, and other high reflective materials, meeting the processing requirements of sheet metal manufacturing, 3C home appliance industry, and new energy industry. 4. Energy consumption level and comprehensive cost: The photoelectric conversion rate of fiber lasers is over 30%, the photoelectric conversion rate of CO2 laser cutting machines with the same power is about 10% to 15%, and the photoelectric conversion rate of solid-state lasers is 3%. The power consumption of fiber laser is only 20-30% of that of CO2 laser with the same power, and the overall cost is lower. By comparison, it can be seen that fiber laser cutting machines have higher work efficiency, better cutting effects, and are maintenance free under the same conditions. However, the purchase cost is slightly higher, and large and medium-sized enterprises can prioritize fiber equipment..
The smaller the focal depth of the focusing lens in Dongying grid production, the smaller the diameter of the focal spot. Therefore, it is very important to control the position of the focal point relative to the surface of the material being cut. The second is cutting and perforation technology. Any thermal cutting technique, except for a few cases where it can start from the edge of the board, generally requires a small hole to be drilled on the board. Previously, on laser stamping composite machines, a punch was used to punch out a hole first, and then laser was used to start cutting from the small hole. The third is mouth design and airflow control technology. When laser cutting steel, oxygen and a focused laser beam are directed through a nozzle towards the material being cut, forming an airflow beam. The basic requirements for airflow are that the airflow entering the incision should be large and the speed should be high, so that sufficient oxidation can cause the incision material to fully undergo exothermic reactions, while also having enough momentum to spray and blow out the molten material. Laser cutting has no burrs, wrinkles, and high precision, which is superior to plasma cutting. For many electromechanical manufacturing industries, modern laser cutting systems with microcomputer programs can easily cut workpieces of different shapes and sizes (workpiece drawings can also be modified), and they are often preferred over punching and molding processes; Although it has a slower processing speed than die stamping, it does not consume molds, does not require mold repair, and saves time on mold replacement, thereby saving processing costs and reducing product costs. Therefore, overall, it is more cost-effective economically. This is precisely why it is popular..
Dongying H-beam production uses a laser cutting machine with a U-shaped tube laser head, which can perform various processes on three-dimensional processing objects. It adopts automated robot motion technology and is equipped with a professional high-precision laser head. The laser output power is stable, the processing area is large, and it can accurately cut and process metal materials of different thicknesses such as sheet metal and stainless steel. It is equipped with a five inch LCD display screen and an offline CNC system, making operation more convenient. 3D laser cutting utilizes the flexible and fast motion performance of industrial robots. Depending on the size of the workpiece being cut and processed by the user, the robot can be programmed vertically or horizontally to teach or program different products and trajectories. The sixth axis of the robot is equipped with a fiber laser cutting head for 3D cutting of irregular workpieces; The fiber laser cutting head is equipped with a follower device and an optical path transmission device. The laser is transmitted to the cutting head using fiber optics, and then focused using a focusing system. Multiple sets of focusing systems have been developed for different thicknesses of sheet metal to cut various three-dimensional metal sheets in multiple directions, meeting customer needs. Suitable for metal materials such as stainless steel, carbon steel, alloy steel, silicon steel, galvanized steel plate, nickel titanium alloy, chromium nickel iron alloy, aluminum, aluminum alloy, titanium alloy, copper, etc. Widely used in various manufacturing industries such as aerospace, automobile and ship manufacturing, machinery manufacturing, elevator manufacturing, advertising production, household appliance manufacturing, medical equipment, hardware, decoration, metal external processing services, etc. Widely used in various manufacturing industries such as aerospace, automobile and ship manufacturing, machinery manufacturing, elevator manufacturing, advertising production, household appliance manufacturing, medical equipment, hardware, decoration, metal external processing services, etc. (Author: Tongkuai (China) Co., Ltd.).
Dongying Steel Pile Tip Company uses compressed air to cut polypropylene and other plastics, and inert vapor to enter the nozzle for cutting flammable materials such as cotton and paper. The auxiliary vapor can also cool the focusing lens, preventing smoke and dust from entering the lens holder, contaminating the lens, and causing overheating of the lens. Laser cutting has no burrs, wrinkles, and high precision, which is superior to plasma cutting. For many electromechanical manufacturing industries, modern laser cutting systems controlled by microcomputer programs can easily cut workpieces of different shapes and sizes, and are often preferred over punching and molding processes; Although the processing speed of laser cutting is still slower than that of die punching, it does not consume molds, does not require mold repair, and saves time on mold replacement, thereby saving processing costs and reducing production costs. Therefore, overall, it is more cost-effective. The relationship between cutting speed and material cutting effect: The choice of cutting speed for CNC laser cutting machines is actually very important during cutting. The cutting speed range can be selected according to the equipment instructions or determined through experiments. Due to factors such as material thickness, material differences, melting points, thermal conductivity, and surface tension after melting, the cutting speed also varies accordingly. Main manifestations: 1. Moderately increasing the cutting speed can improve the quality of the incision, that is, the incision becomes slightly narrower, the incision surface is smoother, and deformation can be reduced. 2. The cutting speed is too fast, causing the cutting line energy to be lower than the required amount. The jet in the cutting seam cannot quickly blow away the melted cutting melt immediately, resulting in a large amount of drag. Along with the slag hanging on the cutting edge, the surface quality of the cutting edge decreases. 3. When the cutting speed is too low, due to the fact that the cutting point is the anode of the plasma arc, in order to maintain the stability of the arc itself, the anode spot or anode area must find a place to conduct current near the nearest cutting seam to the arc, and at the same time, it will transfer more heat radially to the jet, thus widening the incision. The melted material on both sides of the incision gathers and solidifies at the bottom edge, forming difficult to clean slag, and the upper edge of the incision forms a rounded corner due to excessive melting caused by heating. 4. When the speed is extremely low, the arc may even extinguish due to the wide incision. It can be seen that good cutting quality and cutting speed are inseparable..
3. Small footprint, easy placement and handling advantages: 1. The small laser cutting machine has high cutting accuracy, fine focusing spot, cutting accuracy can reach 0.1mm, and the cutting surface is flat and smooth, with no burrs or slag hanging on the surface. 2. The cutting speed is very fast, reaching 2.5m/min, which is over 100 times faster than wire cutting. 3. The cost of small cutting machines is low. The price is only 1/3 of similar performance laser cutting machines and 2/5 of equivalent performance CNC punching machines. 4. Low usage cost. The hourly usage cost is only about 25 yuan, while the cost of a traditional laser cutting machine is about 100mdash, which is 0 yuan. 5. Low maintenance costs. A small laser cutting machine does not require auxiliary gas for operation. Normal operation only requires daily lens replacement and optical path adjustment, making maintenance convenient and cost-effective. 6. The product forms are diverse, controlled by computers, and can cut any complex shape, ensuring production flexibility and product diversification. Can meet the order needs of different customers.
Fiber laser cutting machine is famous for processing metal sheets, with good quality! Generally speaking, the thinner the fiber laser cutting machine, the easier it is to process metal plates. Is that true? For fiber laser cutting machines, cutting 1mm sheet metal is relatively easy and the cutting speed is very fast. The processing operation is also very simple, but cutting 0.08mm plates is not that simple. Although the cutting above is very easy, in actual operation, due to the thinness of the plates, the material is heated during the processing. Residual materials are prone to rise, which can affect cutting accuracy. If we rely on manual processing of the remaining materials, it will be laborious and time-consuming! Some people may think that stacking several sheets of paper together would be better! In theory, it is possible to achieve it, but in actual operation, there will be a more fatal problem, which is the degree! For the surface panel, accuracy has been achieved, but for the bottom panel, waste residue will remain on the surface, greatly reducing accuracy..
The automatic detection system enables suppliers to ensure that the components they provide meet strict safety standards without slowing down production progress.
The laser equipment itself compensates for the expansion and contraction of the FPC board appropriately, but when the deformation of the FPC board is too large, it is impossible to control the cutting shape accuracy within the customer's requirements. In order to measure the cutting accuracy of FPC boards with different expansion and contraction rates, 7 types of expansion and contraction rates of 0.1 were selected respectively permil,、0.2permil,、0.5permil,、0.8permil,、1.0permil,、2.0permil, After positioning, the circuit board materials of 3.0permil and 3.0permil are laser cut, and then the cutting size is measured by anime method. Compared with the theoretical figure value, the deviation value is calculated, and then the average deviation value and variance are calculated. Figure 1 FPC shrinkage rate cutting accuracy curve.
These devices have a considerable market share in the market. On the one hand, they are well-known, and on the other hand, they are cheap. Although they have obvious disadvantages compared to modern processes such as laser cutting, they also have their own unique advantages (CNC) cutting machines. Due to their mainly linear cutting, although they can cut up to 4 meters of sheet metal with one knife, they can only be used for sheet metal processing that only requires linear cutting. Generally used in industries that only require straight cutting, such as cutting after the board is opened. (CNC/turret) punch presses have gained more flexibility in curve processing. A punch press can have one or more sets of square, circular, or other special punch heads, which can process specific sheet metal workpieces at once. The most common industry is the chassis and cabinet industry, which requires cutting techniques such as straight lines, square holes, and circular holes, with relatively simple and fixed patterns. They mainly deal with carbon steel plates below 2mm, with a width of generally 2.5mtimes and 1.25m. Stainless steel with a thickness of 1.5mm or more generally does not require the use of punching machines due to the high viscosity of the material, which makes it more expensive to use molds. Its advantages are fast processing speed for simple graphics and thin plates, but its disadvantages are limited ability to punch thick steel plates. Even if it can be punched, the surface of the workpiece will collapse, which requires a long mold development cycle, high costs, and insufficient flexibility. The cutting and processing of steel plates over 2mm in foreign countries generally use more modern laser cutting instead of punching machines. Firstly, the surface quality of thick steel plates is not high during punching and cutting. Secondly, punching thick steel plates requires larger tonnage punching machines, which wastes resources. Thirdly, the noise during punching thick steel plates is too loud, which is not conducive to environmental protection. Flame cutting, as the original traditional cutting method, has a large market share due to its low investment and low requirements for processing quality in the past. If the requirements are too high, an additional machining process can be added to solve the problem. Now it is mainly used to cut thick steel plates exceeding 40mm. Its disadvantages are that the thermal deformation during cutting is too large, the cutting seam is too wide, wasting materials, and the processing speed is too slow, only suitable for rough machining.
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