Page 422 - Gear Technology Solutions

Figure 1: Variety of different disk cutters following the silhouette of a
face cutter head

The ring gear in Figure 2 is oriented with a horizontal axis like the work spindle
in all Phoenix machines. The graphic shows the swing motion in the upper
machining position. Like in Coniflex or Coniface, the left flanks are machined in
the upper position, where the right flanks are machined in the lower position.
The circular section in Figure 2, labeled with “Swing Motion” can be adjusted in
Uniflex, such that it covers the face width and provides some small overtravel
amount at the toe and heel end of the teeth. It is not required (as shown in the
graphic) that the tool silhouette completely frees up the tooth face. The mini-
mum possible and recommended overtravel is achieved if the point on the out-
er diameter of the tool which is the closest to the root just passes the heel or
toe border. Each single swing pass along the face width machines one roll po-
sition. The reverse pass already machines the next roll position. In case of
large ring gears with a high number of teeth (above 50) cutting of 10 to 15 roll
positions are already sufficient for achieving a good profile topography. It is
recommended to use between 10 and 30 roll positions.

The generating order between the two flanks if an endmill is used in Unimill is
either one roll position on the lower flank in one swing, and in the reverse
swing the same roll position on the upper flank. The machining is oriented at

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