車削公式
切削速度(Vc)Cutting Speed:
Metric 公制
Vc = D × RPM × 0.0031 (m/min.)
Inch 英制
Vc = D × RPM × .262 (ft/min.)
Metric 公制 Vc to Inch 英制 Vc
Inch Vc = Metric Vc × 3.28 (ft/min.)
Inch 英制 Vc to Metric 公制 Vc
Metric Vc = Inch Vc × .305 (m/min.)

Spindle Speed主軸轉(zhuǎn)速(RPM)
Metric 公制
RPM = Vc × 318.3 ÷ D (rev./min.)
Inch 英制
RPM = Vc × 3.82 ÷ D (rev./min.)

Feed Rate進(jìn)給速度(Vf = Table Feed 加工進(jìn)給)
Vf = Fn × RPM (mm/min. or in/min.)
Feed per Revolution

每轉(zhuǎn)進(jìn)給量(Fn)
Fn = Vf ÷ RPM (mm/rev. or in/rev.)

Metal Removal Rate金屬切削率(Q)
Metric 公制
Q = Vc × Fn × Ap (cm³/min.)
Inch 英制
Q = Vc × Fn × Ap × 12 (in³/min.)

Cutting Time切削時(shí)間 T = L ÷ Vf (min.)

Terms 術(shù)語(yǔ)
RPM (n) Spindle Speed (Revolution per minute) 主軸轉(zhuǎn)速(每分鐘轉(zhuǎn)數(shù))
Vc Cutting Speed 切削速度
D Work Diameter 工件直徑
Vf Feed Rate ( Table Feed) 進(jìn)給速度
Fn Feed per Revolution 每轉(zhuǎn)進(jìn)給量
Ap Depth of Cut 切削深度
Q Metal Removal Rate 金屬切削率
L Length of cut 切削長(zhǎng)度
T Cutting Time (min) 切削時(shí)間 (min.)