Deep engraving on metal by 3D mopa fiber laser marking machine
2020-05-13 11:18:53
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Deep engraving on metal by 3D mopa fiber laser marking machine
Deep engraving on metal fiber laser marking machine is popular in the market. Laser source have Raycus, IPG, JPT Mopa.
Today we Today we mainly talk about 3D mopa laser marking machine MOPA lasers open up many new possibilities for marking plastics and metals, including high-contrast marking, color on certain metals.
During the laser engraving process, material is removed from a solid surface. materials such as steel, titanium and (almost) all other metals can be vaporized directly by the high-intensity laser beam. The laser's high intensity is achieved by means of the fiber laser's high pulse power combined with a very small laser spot diameter (with Trotec ~ 45 μm with the F-160 lens). With this method, you can engrave texts, logos ect materials. The process reduces the material volume and changes its color. The resulting brown areas consist of metal oxides (or rust), which can be cleaned using the cleaning cycle using polishing parameters. Engraving on stainless steel requires high power, low frequency (which results in high power per pulse) and marking speeds of 250 - 900 mm/sec.
Whats the difference about 2D and 3D?
Features
Traditional 2D laser marking is used post-focus mode, generally only within the specified range of plane marking.The advent of the new 3D laser marking machine has solved the inherent shortcomings of the 2D laser marking machine. The 3D laser marking machine adopts the advanced pre-aggregation method, and use of the dynamic focusing seat, which takes the light principle, The principle of candle imaging, through the software control and mobile dynamic focusing lens, to change the focal length of the laser beam to achieve accurate surface marking of high and low different objects.
● High security
Using of closed laser optical path design, can effectively prevent the leakage of laser radiation.
● High stability
Laser transmission through the fiber, loss is small, good stability to ensure increased product yield.
● High speed
Perfect hardware and software with ultra-high-speed custom galvanometer, effectively improve production capacity, marking speed up to 7000mm / s, is the traditional marking machine 2 to 3 times.
● Good beam quality
The minimum line width up to 0.015mm, repeating accuracy up to 0.001mm, especially for fine, precision marking.
● No supplies
Fiber laser life up to 100,000 hours, no supplies, without any maintenance, high photoelectric conversion efficiency, the machine power consumption does not exceed 500W, significant savings in energy consumption.
Advantage
The emergence of three-dimensional laser marking machine is a major jump in the field of laser marking, it is no longer limited to the surface shape of the object in the class plane, can be extended to the three-dimensional surface, to achieve high-efficiency three-dimensional surface laser Marking and surface microstructure manufacturing. Compared with the traditional two-dimensional laser marking machine, three-dimensional laser marking machine has the following advantages:
1. Greater range and finer light efficiency.
3D marking using pre-focused optical mode, the use of larger X, Y-axis deflection lens, which can allow the transmission of more larger laser spot light , better focusing accuracy, better energy ; if 3D marking and 2D marking work together in the same focus precision , the marking range of 3D can be greater.
2.can engraving different height of the object, variable focal length.
As the 3D marking can quickly change the laser focal length and laser beam position, greatly improving the processing efficiency,but the 2D marking can not achieve this effect. Moreover, in real life, many parts of the surface shape is not regular and some parts of the surface height difference is quite large, for 2D marking processing is really powerless, this time, the advantages of 3D marking will become more obvious.
3. suitable for deep engraving.
For the traditional deep engraving method is the electric way in the engraving process at regular intervals to move the lift to a certain height ,to ensure that the laser surface is well focused.3D marking for deep processing, there is no such problem, both to ensure the effect, but also enhance the efficiency, while eliminating the cost of electric lift.
