
Compaction is proportional to the percentage of
overlapping, ϕ, which varies between (20 ± 11.99)%
and (76 ±1.33)%. As standard deviation increases,
the instability of the layer increases. When overlap-
ping is 20% and the standard deviation of these values
is approximately 12%, there will obviously be parts
along the length of the layer in which isolation zones
will appear.
where, L =total layer width; S =scanning space;
W =track width and n =number of tracks
The best surface finishes – according to their Ra, Sk
and Ku values – were obtained at the lowest scanning
speed combined with maximum scanning space and
vice versa. In the first case, ϕ =51 ± 10