The possibility of actively shaping the bore shape within wide limits, in addition to the diameter, during the fine-boring process is reportedly now enabled by the fine-boring head from Krause + Mauser. Thanks to the intelligent use of Piezo actuators from the automotive sector, the high stroke frequencies necessary for its extremely high dynamics and positioning accuracy can apparently be achieved. A closed control circuit with a measuring system ensures the corresponding precision. The possibility of performing several strokes with an accuracy of less than one micron during one revolution of the drilling tool enables a deterministic shaping, and consequently the production of programmable polygon shapes. As the German exhibitors elucidate, up to high RPM ranges, systematic influences such as deformation of the workpiece caused by strain or thermal distortion can thus be compensated during machining. Since defined bore shapes can be generated at each machining level, the production of tribologically favorable bore shapes, such as oval or trumpet shapes, is also possible through flexible programming.
Highly dynamic Piezo fine-boring head
Thanks to intelligent use of piezoelectric actuators from the automotive industry, the new precision fine-boring head from Krause + Mauser achieves the high stroke frequencies required for exceptionally high dynamics and positioning accuracy.