Wednesday, November 09, 2011

Basic Machining Terminology

Negative rake : A rake angle that is negative. Additionally inserts with a clearance angle of 0° are called negative.

Positive rake : A rake angle that is positive. Additionally inserts with a clearance angle are called positive.

Cutting speed : The speed at which the cutting edge machines a workpiece.



Dm (mm) : Workpiece diameter (Turning)

D (mm) : Cutting tool diameter (Cutter diameter. drill diameter)

n (min -1) : Spindle speed of workpiece (Turning)

Spindle speed of cutting tool (Milling. drilling)



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