Flame cutting as the original traditional cutting method, due to its low investment, in the past the processing quality requirements are not high, when the requirements are too high, adding a machining process can solve the problem, and the market share is very large.
Now it is mainly used to cut thick steel plates over 40mm. Its disadvantages are that the thermal deformation is too large, the slit is too wide, waste materials, and the processing speed is too slow, only suitable for rough machining.
Plasma cutting has become the main force of cutting precision, but also a large number of flame cutting precision. The actual cutting accuracy of the domestic top CNC fine plasma cutting machine has reached the lower limit of laser cutting.
When cutting 22mm carbon steel plate, the cutting speed is more than 2m per minute, and the cutting end face is smooth and flat, and the best slope can be controlled within 1.5 degrees. The disadvantage is that the thermal deformation is too large and the slope is large when cutting thin steel plate, and there is nothing to do when the accuracy is high Consumables are more expensive.
Laser cutting machine is a technological revolution of sheet metal processing, and is the "machining center" in sheet metal processing. Laser cutting has high flexibility, high cutting speed, high production efficiency and short production cycle, which has won a wide range of market for customers.
Laser cutting has no cutting force, no deformation in processing; no tool wear, good material adaptability; no matter simple or complex parts, laser can be used for one-time precision rapid prototyping cutting; the cutting slit is narrow, the cutting quality is good, the degree of automation is high, the operation is simple, the labor intensity is low, and there is no pollution; the automatic layout and nesting of cutting can be realized, and the utilization rate of materials is improved Low cost and good economic benefit. The effective life of this technology is long.
At present, laser cutting is widely used in the foreign super structure 2 mm plates. Many experts agree that the next 30-40 years will be the golden age for the development of laser processing technology.
From the above comparison of laser cutting machine, flame cutting and plasma cutting, laser cutting machine in sheet metal cutting, whether in cutting accuracy, or processing speed, as well as processing diversification, should perform better. Therefore, more and more sheet metal manufacturers choose laser cutting machine.
