Cemented Carbide Tools Cutting Formula

Commonly used formula of cutting

Metric System
Description	Symbols	Unit	Formula
Cutting speed	Vc	(m/min)	Vc=(π×d×n)/1000
Rotation speed	n	(rev/min)	n=(Vc×1000)/(π×d)
Feed speed	Vf	(mm/min)	Vf=fz×Z×n
Feed rate per revolution	f	(mm/rev)	f=fz×Z
Feed rate per tooth	fz	(mm)	fz=Vf/(Z×n)

Inch
Description	Symbols	Unit	Formula
Cutting speed	Vc	(inch/min)	Vc=(π×d×n)/12
Rotation speed	n	(rev/min)	n=(Vc×12)/(π×d)
Feed speed	Vf	(mm/min)	Vf=fz×Z×n
Feed rate per revolution	f	(inch/rev)	f=fz×Z
Feed rate per tooth	fz	(inch)	fz=Vf/(Z×n)

Effective diameter of cutter

Effective cutting speed
Average cutting speed

Cutting is the most important processing method in the mechanical manufacturing. Blank manufacturing continuously improve the accuracy, precision casting, forging, extrusion, powder metallurgy process applications more popular, but adapt to a wide range of cutting, and can achieve high accuracy and low surface roughness, mechanical manufacturing processes still occupy an important position.

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