Positive SSL
1 銑削中碳鋼工件之速率為30m/min,銑刀每一齒進刀量為0.2mm/t,銑刀外徑75mm,銑刀齒數為8,每轉進刀量為
A 1.6 mm/rev
B 0.8 mm/rev
C 3.2 mm/rev
D 4.8mm/rev
fr = ft * Tc =0.2×8=1.6(mm)