Stream finishing is an immersion grinding process. For this process the workpieces are attached to rotating spindles and move in a flowing media bed.
A grinding effect is created as the workpiece rotates and as the grinding or polishing medium circulates around it
Damage-free processing is possible as the workpieces cannot touch each other during this process.
As with drag finishing, the abrasion level is dependent on the immersion depth, the rotation speed and the movement speed of the process container.
Benefits of the stream finishing machine:
Shortest process times of all mass finishing processes with moderate grinding body consumption
Damage-free processing of high-value workpieces such as knee joints or machining tools
Deburring, rounding, smoothing and polishing in a single process
Consistent results
Exactly programmable movement intervals
Can be automated
Integration in production lines
Process reliability
Operating principle of the stream finishing machine
THE OTEC PULSFINISH PROCESS
Precisely defined, rapid movement intervals between media and workpiece.
The workpiece is immersed in the media flow of the rotating container and accelerated to over 2 000 rpm in a very short time.
Extremely intensive and precisely controllable grinding action due to the varying speeds (inertia of the rotating media in the container and the workpiece speed changes).
Relative accelerations up to 40 g.
Deburring, rounding and smoothing from e.g. Rpk 0.2 μm to Rpk 0.1 μm in less than a minute and in a single operation.
Contours of the workpiece are superbly well maintained.
