Slot flank angle

Figure 8.88 shows the smallest values of the slot flank angle for which the inequality above is satisfied. 

As Fig. 8.88 indicates, the slot flank angle must be increased as the ratio of flight width to slot width decreases. When the slot width is twice the flight width, the slot flank angle has to be 90° to maintain full wiping. As a result, this will be the smallest value of the width ratio that will be practical. The preferred range of the flight to slot width ratio is from 1 1 to 3 1. 

Minimum slot flank angle for flight helix angle of 45°... 

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See also in sourсe #XX -- [ ]

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