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Laser Machining Processes - Fine Laser Cutting, Micro Laser Cutting or Nd: YAG Laser Cutting
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The demand for ever finer and more precise structures, especially in medical manufacturing technology and electronics, can now be met only to a limited degree by conventional processes, if at all. Modern solid-state or gas lasers, on the other hand, can process almost all metals and metal alloys quickly and precisely. As opposed to ‘rougher’ processes such as CO2 laser cutting, fine laser cutting is the process of cutting extremely fine detail into delicate parts or parts requiring a high degree of accuracy. Fine laser cutting is typically carried out on machines with accurate axis movements using Nd:YAG or solid state lasers.
The list of the fine cutting laser's specific advantages is a long one:
The warming zone is extremely small (at most 3 µm) because of the sharp focus of the laser and the short treatment time. As a rule, the cut edge is so clean that elaborate reworking is superfluous. This is an important property when producing fine delicate parts that could be damaged by finishing and deburring processes. The width and speed of cut are most attractive - for example, a 100 µm thick metal sheet, with a cut width of 18 µm, can be cut at a speed of 10 mm per second. The laser beam cannot become blunt, so process quality is assured to a very high degree. Flexibility is unsurpassed - with the help of a CAD system, any new contour can be redefined within minutes.
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