Experts from the German company FETTE have developed a new coating, the nanosphere, which is tailor-made for gear processing tasks.

According to the company's report to the Adsale China Machinery and Metal Processing Network, the coating is a special hob coating with a multi-layer structure consisting of nano-layers and thinner than 3 to 4 microns, although it High hardness, but microscopic elasticity, can effectively protect the hob and reduce wear. It increases cutting speed, reduces cycle time, increases productivity, and extends tool life by up to 30%, reducing the cost of the hob.

The secret of the innovative nanosphere coating lies in its multi-layered, nanostructured design, which effectively improves the thermal insulation of the tool. At the same time, the multilayer structure of the nanosphere coating makes it more elastic than a single layer coating. When the substrate loses stability and yields under pressure, the flexible multilayer coating on top of it will also yield.

Fitt emphasizes that it will ensure that hobs with nanosphere coatings will continue to work with the same standards of new tools after re-grinding and overcoating. This is a process based on standardization. The tool is re-grinded and overcoated on the original grinding machine and coating equipment at the Fürth Grinding Center, a process that guarantees consistently high quality and absolute process safety.

If a crack occurs in the nanosphere coating, its expansion is redirected and slowed down by the multilayer structure. Its multi-layer structure also provides better insulation, which means that the high temperatures generated during the hobbing process take a long time to heat the steel tools. According to the information obtained by the Adsale China Machinery and Metal Processing Network, as a wholly-owned subsidiary of the German Blue Group in China, Nanjing Lanzhi Metal Processing Technology Co., Ltd. has invested in the establishment of a grinding center that meets the above criteria, including Swiss coating equipment, de-coating equipment and testing equipment.

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