Speedy series: Laser engraving and cutting machines for formats up to 1016 x 610 mm
⚫ Engrave | ⚫ Cut | ⚫ Mark |
Laser type: | CO₂, Flexx or Fiber laser |
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Work area: | 610 x 305 up to 1016 x 610 mm |
Max. workpiece height: | 125 - 305 mm |
Laser power: | 20 - 120 watts |
SP series: CO2 laser cutter for large-format materials.
⚫ Engrave | ⚫ Cut | ⎯ Mark |
Laser type: | CO₂ laser |
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Work area: | 1245 x 710 up to 3250 x 3210 mm |
Max. workpiece height: | 50 - 112 mm |
Laser power: | 40 - 400 watts |
Marking laser stations with galvo marking heads. Marking area up to 44.1 x 25.0 inch.
⚫ Engrave | ⎯ Cut | ⚫ Mark |
Laser type: | CO₂ or Fiber laser |
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Max. work area: | 190 x 190 up to 1300 x 450 mm |
Max. workpiece height: | 250 - 764 mm |
Laser power: | 20 - 100 watts / 20 + 100 watts MOPA |
Annealing leaves no tangible mark on metals, including stainless steel
During the annealing process, no material is removed and there is no ablation unlike when laser engraving. Annealing does however produce a colour change in the material as it is heated. For example, stainless steel, changes colour when it reaches temperatures between 200 and 300°C. Annealing can be used for a wide range of applications, including laser marking ball bearings and dataplates.
With a laser machine, many different finishes can be achieved on materials. A "perfect black" mark is usually the desired result and can be achieved on stainless and Titanium. It is possible though to achieve different colours with different temperatures. Annealing is also possible on any allows which contain iron.
In order to anneal metal, it is crucial that you only heat the material as opposed to vaporising it. This can be achieved by reducing the energy density of the laser impact on the steel. To do so, you need to go out of focus to increase the laser spot size. Having the same energy on a much bigger surface will reduce the energy density. A slow laser marking speed should be used as heating the metal will take time.
When using the conventional method of annealing, make sure you work with the industrial laser out of focus (to get a large laser spot for heating the material) and with a very low laser speed.
This process allows you to create deep black (even partially coloured) and homogenous markings on stainless steel. Please note there are also some negative effects caused by the low speed and working out of focus:
With the laser marking solutions of Trotec´s SpeedMarker Series, you can avoid these negavite effects of the annealing process.
With the use of the latest fiber laser generation and the new SpeedMark 3.6 laser marking software, you can create laser markings by annealing in focus, leading to up to ten times faster laser marking speeds!
This configuration opens new possibilities for meeting the requirements of laser marking with the annealing process:
Are you currently laser marking with annealing or intend to do so in the future? Contact us! Our laser experts are here for you and will help you find the ideal marking parameter for you specific requirements.