Lach, Germany develops PCD and PCBN tool chipbreakers

German diamond tool manufacturer Lach Diamant has been developing chipbreakers for PCD tools for nearly 10 years and is a technological pioneer in this field. The company acquired the first PCD chipbreaker technology patent in January 1999, which was developed specifically for the application of PCD tools in the aerospace and automotive industries.
In recent years, there has been a large trend in the aerospace and automotive industries using lightweight aluminum alloy materials, with the aim of reducing the weight of aircraft and automobiles, thereby reducing the need for drive power. Some high-strength forged aluminum alloys pose a serious problem in processing due to the tendency to produce harmful ribbon-shaped chips and spiral chips during cutting. Such chips not only affect the cutting performance of the tool, but also may cause damage to the machine tool, resulting in frequent shutdowns during the machining process to clean the area blocked by the chips. As can be seen from the photo below, the use of chipbreakers eliminates the problem of chip winding and enables high-efficiency, trouble-free machining.
Recently, Lach has made new developments in superhard tool chipbreaker technology, introducing a new PCBN cutting insert with chipbreaker under the trade name CBN-DUO-power, which was held in Stuttgart, Germany in 2008. Debut at the AMB exhibition.
These CBN chipbreaker inserts developed by Lach through the dreborid program are recommended for cutting gray cast iron with positive rake angles and for finishing hardened steel. In both processes, the innovative design of the chipbreaker prevents the creation of undesirable ribbon and spiral chips.

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Glass ceramic (glass-ceramic), also known as glass-ceramic, microcrystalline ceramic, by the famous glass chemist and inventor S. D. Stookey was invented in the mid-1950s and is a vitreous-containing polycrystalline solid phase material obtained by controlled nucleation and crystallization of a certain composition of base glass at a certain temperature. The properties of glass ceramics are mainly determined by the main crystalline phase, which can be achieved by controlling nucleation, crystallization, and selecting different parent glass components.

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