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The size of the laser cutting speed impact on the quality of machining
by：Transon
2020-10-31
Laser cutting machine cutting speed of different effect on the quality of machined surface treatment, speed too high or too slow will affect machining surface quality, below as an introduction to the laser cutting machine cutting speed will cause what effect to the machining quality.
high cutting speed, laser and material contact each other time is shorter, so effective spot on the surface of the workpiece, will become smaller, the area of the notch width will be smaller, and the beam spot near the front of incision, the laser beam speed too fast lead to frontier of incision melting speed can't keep up with, then cut the roughness of the surface will be discounted, hang slag and will appear at the bottom of the notch. Incision speed is too low, the material and laser interacting time growth, the area of the effective spot also become bigger, incision width also ah greaten, subsequently appears melting speed is normal but the problem can't keep up with the cutting speed, the reaction of the excess lead to a fusion reaction, which can lead to irregular and too wide incision.
the higher the laser mode, the greater the spot radius, laser speckle pattern determines the quality of laser beam, it for laser cutting ability, and the size of the kerf width and roughness has great influence. Under the same conditions, focusing on the smaller spot diameter, power density is big, so the cutting out of the narrow cut, cut, the better quality too. The principle of laser cutting, like flame cutting, mainly oxidation, in front of incision when the temperature is above 2000 degrees Celsius, can make use of the laser beam axis automatically adjust to cut metal and heating function.
high cutting speed, laser and material contact each other time is shorter, so effective spot on the surface of the workpiece, will become smaller, the area of the notch width will be smaller, and the beam spot near the front of incision, the laser beam speed too fast lead to frontier of incision melting speed can't keep up with, then cut the roughness of the surface will be discounted, hang slag and will appear at the bottom of the notch. Incision speed is too low, the material and laser interacting time growth, the area of the effective spot also become bigger, incision width also ah greaten, subsequently appears melting speed is normal but the problem can't keep up with the cutting speed, the reaction of the excess lead to a fusion reaction, which can lead to irregular and too wide incision.
the higher the laser mode, the greater the spot radius, laser speckle pattern determines the quality of laser beam, it for laser cutting ability, and the size of the kerf width and roughness has great influence. Under the same conditions, focusing on the smaller spot diameter, power density is big, so the cutting out of the narrow cut, cut, the better quality too. The principle of laser cutting, like flame cutting, mainly oxidation, in front of incision when the temperature is above 2000 degrees Celsius, can make use of the laser beam axis automatically adjust to cut metal and heating function.
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