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Micro machining
Applications > Laser cutting > Micro machining

Micro machining with the smallest die clearances

Very stable mechanical and thermal machining concepts with precision axes are used in micro machining. Precision in micrometer range with die clearance starting at 10 micrometers are state of the art technology today. Typical applications are cutting filigree structures like stents for the medical industry or cutting the smallest components out of stainless steel, nonferrous metal and ceramic for the watch industry and precision engineering. The cutting heads have to be just as suitable for constant cutting operation with solid-state lasers as it is for various frequency multiplied laser wave lengths in the ultra-short pulse range. The smallest spot diameters require a diffraction limited optical design with the finest adjustment options and respective optical positioning aids with integrated camera technology.

Applications
FineCutter System
FineCutter - Finest contours and smooth cutting surfaces

The FineCutter with integrated camera monitoring can be used for high-precision applications with laser power up to 500 W. Die clearances of approx. 10 µm are feasible with the respective beam quality.  Medical implants like stents or other precision parts made up of pipes are cut with the FineCutter. Surgical needles or endoscope parts and micro machining parts for e.g. mechanical watches are additional application examples. 

FineCutter System
The journey to the center of the earth - using the laser in a different way

At the Bavarian Geoinstitut in Bayreuth, the FineCutter is used for basic research. Two diamonds are stretched across from each other via a centering ring in a structure here. There is space for a gel between the two diamonds, in which various clean ore are inserted. Now, the laser beam is focused directly on the clean ore through the diamonds and this is heated up intensely. An internal temperature of over 700° C is generated. By pressing the diamonds together from both sides, the internal pressure increases up to 250 GPa. Material changes can be observed with the aid of a camera monitoring. This structure provides a simulation of processes in the Earth's core. Diamonds can even be produced through the insertion of carbon compounds.

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