We use channelling primarily as a method for manufacturing internal profiles. It involves a rod-shaped channelling needle being pulled through the bore of the part to be machined, which is held in a clamp. The needle is equipped with cutting teeth that project to an increasing degree and gradually produce the required contour.
The clearing needle is a multi-cutter, geometrically defined, linearly mobile tool, of which not all cutters are operational. The complicated internal contour with a fixed dimension is machined by pulling the tool through the given part. If the contour dimensions are changed, the entire tool has to be replaced.
Available contour options include
- tapered grooves
- standard and non-standard hub profiles
- internal toothing