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The common problems in the manufacturing process of steel plate cutting

by:J&D WATER     2020-03-16
Daily batch cutting steel continuous processing occurs after a period of time, cutting processing quality becomes poor. Adjust the laser cutting machine parameter Settings. Optimal solution. 1. Processing after a period of time appear mainly because of the melting metal can't hang slag flow from the eduction in slot in. The possible reasons are as follows: the laser light path problem, cutting gas flow change and processed plate temperature changes. The comparable quality parts and not drop the slot width. If different slot width, is cutting head lens appear to float or warm lens smudgy leads to the laser focus position and degree of actual appeared deviation. This will need to check the cutting head collimation and focus lens temperature is normal, laser lens have smudgy, and correction of central degrees. Solution output laser head and cutting head internal optical lenses for cleanliness requirements is very high, any tiny impurities or scratch could cause serious damage. Please in dust-free environment or air precipitation in the morning after the night to clean the lens and tear open outfit, head of laser output please use 20 times or greater microscope, with clean cotton swabs with anhydrous alcohol to wipe clean. Without permission and does not have disassembled condition related please do not disassemble optical components. 2. Processing appeared after a period of time to burn the main reason lies in the plate temperature, gas cutting and laser class related conditions change. Long time processing of thick plate, due to the processing speed is relatively slow, plate heat accumulation cause materials temperature rise, leading to burnt; Also may be because the lenses optical path temperature rise in temperature drift or lens smudgy slips cause the laser focus position and exposure to the material of light distribution changes, the cause of excessive energy accumulation happened to burn. Should check whether within the laser lens clean at this time, big changes in the lens have temperature without nozzle center degree of presence of migration, upon confirmation of the above aspects can solve the problem, need to consider the laser output head to see if there is abnormal situation ( Such as dot or lon 。 Solution 1) Nozzle anomalies or severe burning, check inside the lens. 2) Red with white paper observation, away from the nozzle or tilted Angle, if the red light have obvious shadow the internal lens smudgy. 3) Use black paper, some observations on the photographic paper presents flare shape without shadow, if there are spots in the lens smudgy. 4) Is the most intuitive judgment method in the clean room with a microscope optical output end, observe whether there are abnormal inside from the cutting head on both ends. 3. Cut processing after a period of time appear opaque main reason is that the laser light path problem, laser power and cutting gas flow problems. When the laser lens focus after temperature drift or dirt, can affect the exposure to the material on the surface of the laser energy changing, leading to unable to cut through. At the same time if the laser power supply voltage instability will cause the laser light power instability, can also lead to cut, and if the gas path in gas supply pressure is insufficient or lead to the problem of insufficient gas nozzle damage will cause the same cut. Solution in laser processing, in order to effectively avoid the happening of processing quality problem, should try to do the following: (1) according to the thickness of the board processing, select the appropriate laser batch processing and its limit of avoid by all means use laser cutting ability of plank, such as a laser cutting thickness limit is 25 mm, the thickness of the laser machine batch processing should be within 20 mm. (2) design suitable for different thickness plate cutting graphics, graphics processing dimension is less than the plate thickness should be avoided in principle of 0. Eight times. In the plate thickness is relative to the laser cutting ability under the condition of thick plate, when cutting Angle corresponding to the corner, or cutting by pulse, in order to avoid burning Angle. (3) reasonable arrangement, sequence, avoid short time within the same area density cutting. (4) select the appropriate cutting process, avoid to use the limit cutting speed batch processing board. (5) improve the perforation process, avoid the perforation caused by unstable cutting head lens dirt and damage of the nozzle. 6. Select the appropriate water cooling machine, to ensure the flow rate and the capacity to achieve the demand of the laser. All landowners can guarantee the stability of cutting the purity of the gas and the output pressure. Recommendation: laser cutting equipment discount bargain offer 4007001618 【 Metal laser cutting equipment 】 It is mainly used for cutting stainless steel, carbon steel, aluminum, copper, aluminum, iron, gold, silver etc. Thickness is 1. 0 ~ 25 mm plate; 【 Stainless steel laser cutting equipment 】 Classic gantry double drive structure of stable and reliable, automatic switching table, at the same time of cutting up and down on another table, convenient and quick to save time; 【 Optical fiber laser cutting 】 With high-speed movement speed, acceleration and dynamic performance, is laser for efficient and specialized research and development of a product, its cutting 0. The speed of 5 mm stainless steel reached 100 m/min. 【 Carbon steel sheet metal laser cutting 】 Specializing in sheet metal processing industry demand for sheet of processing in the field of research and development design of laser processing equipment, it has a very high cost performance, with CNC system control, efficiency is much higher than in other laser cutting equipment for the board drive mode control. More plate for CNC laser cutting equipment cutting laser cutting, laser cutting
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