one of the questions that came into my mind suddenly was to know if drilling a unidirectional composite would require less cutting forces than that for drilling a cross ply orientation one with similar thickness.
If you can specify what type of composite material or mechanical properties especially strength.
It is GLARE fiber metal laminates, the S2/FM94 prepregs orientation are usually 0/0 or 0/90 or 90/90 or +45/-45
the difference is only force fluctuation, maximum value of thrust and torque may be same for all FML, for similar cutting conditions.
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OPTIMIZATION
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