2010 - Patents granted

Grinding wheels are developed for machining extremely hard balls consisting of Si3N4 and other ceramic materials. This production process is patented in the USA and Russia in 2010.

Balls can be machined extremely efficiently and cost effectively in diameters ranging from 1.0 to 50 mm. The difference in grinding with the patented wheels for currently practiced lapping procedures is particularly noticeable in the first grinding process after the sintering stage (the sintered skin is up to 500 µm thick). Stock removal rates up to 50 µm/h are possible here. Perfect roundness and surface finish can be produced up to grade G10.

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53229 Bonn, Germany

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