Fig. 1. Effect of random profile amplitude on PSD curves

Fig. 2. Effect of random profile frequency on PSD curves

Fig. 3. Effect of random profile phase on PSD curves

Fig. 4. Effect of random frequency and amplitude decrease on PSD curves

Fig. 5. Generated six curves of random profile

Fig. 6. Relationship between PSD curves with RMS and RMS Slope

Fig. 7. Diagram of several typical NC machining paths

Fig. 8. PSD curve with spiral path

Fig. 9. PSD curve analysis with grid line path

Fig. 10. PSD curve with pseudorandom path

Fig. 11. PSD curve with Peano path