Aplicación de herramientas PcBN
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Aplicación de herramientas PcBN


La herramienta PcBN es adecuada para la tecnología de corte de alta velocidad y ultra-alta velocidad

La herramienta PcBN es la más adecuada para el corte de alta velocidad de hierro fundido, acero apagado y otros materiales. Se puede ver por la relación entre el desgaste de la herramienta y la distancia de corte cuando PCBN corta el hierro fundido y el acero endurecido. Cuando la velocidad de corte supera un determinado límite, cuanto más alta es la velocidad de corte, menor es la velocidad de corte. Es decir, cuanto más larga la vida de la herramienta está bajo corte de alta velocidad, que es especialmente adecuado para el corte moderno de alta velocidad.

Tecnología de mecanizado de hardware de herramientas PcBN para los mejores materiales de herramientas

Finishing of quenching hardware (hardness above HRC55), usually by grinding method to finish. But with the development of cutting tool materials and lathe (especially CNC lathe) the improvement of the machining accuracy, replace the grinding with hard cutting to complete parts processing has become a new finishing way. Eventually, this car for grinding process method has the following advantages:

(1) It can improve the machining flexibility, break through the limitation of the grinding wheel. And produce workpiece with different geometric shapes by changing the cutting edge and the way of walking the cutting tool;

(2) The environmental protection problem in cutting processing is increasingly serious, the waste fluid and waste generated by grinding processing are more and more difficult to deal with and remove. And harmful to the human body, and the hard cutting without adding coolant, significant; (3) High cutting efficiency, short processing time, small equipment investment, can reduce the processing cost; (4) The energy consumed by cutting the same volume is only 20% of the grinding, so the cutting heat generated is less. And the processed surface is not easy to cause burns and micro-cracks, which is easy to maintain the integrity of the workpiece surface performance; (5) Under the same metal removal rate, hard cutting saves energy compared with grinding. Tools commonly used for hard cutting are ceramic, TiC coated blades and PCBN tool materials, but PCBN is the best tool material for hard turning at a high speed (above 1000m/min). For example, in the automobile gearbox synchronizer set fork (material is 20CrMnTi, hardness is HRC58 ~ 62) processing with the car grinding, the efficiency increased more than 4 times, the processing cost reduced to the original grinding process 1/3 ~ 1/2.
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