Hard Turning operations performed on modern CNC lathes have reached levels of precision and repeatability that overlap, in many cases, those obtained with grinding operations.
In many cases, however, very precise roughness parameters are required or the absence of helical processing marks that can not be obtained with the turning process, which therefore requires a subsequent honing step carried out on a special machine.
Here our CNC honing machines are needed, which are used in the last processing phase for surface finishing.
Handled directly on the CNC lathe, through the tool change, they consist of an abrasive pad in CBN or Diamond, mounted on a floating and spring-loaded support.
At the end of the turning, after an accurate washing operation of the piece with the lubricant-cooling fluid present on the machine, the abrasive pad is brought into contact with the surface to be honed, translating with the longitudinal axis while the piece is rotating.