Page 462 - Gear Technology Solutions

original design summary remain unchanged which results in a Blade Distance
= 1.92 + 0.5 = 2.42mm.

Figure 31: Coniface blade conversion graphic

The results of the summary change can be graphically observed in Figure 31.
The left side of Figure 31 shows the original blade from the 15” cutter, accord-
ing to the summary in Figure 29. With the much smaller blade width of the 9”
cutter head the blade distance is hand calculated as shown above. Only a
small clearance cutting edge may exist (see the right-side graphic in Figure 31)
in order to achieve a cutting-edge depth which is equal or greater than 115%
of the jobs whole depth.

With this new summary JOB4_AUX.BFN the blades for the Uniflex cutter can
now be ground. It is recommended to use 3-face ground blades instead of 2-
face blades in all cases when the blade distance is equal to the real blade tip
thickness + 0.5mm. A blade front face grinding with a side rake angle of 4.5°
and a practically unground clearance side increases the capability of the clear-
ance side to remove chips during plunging and/or during the roll of the first
side.

All blade features should be checked after the summary calculation. Slight ad-
justments can be made, for example to Blade Distance, Top Width as well as

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