Drilling cutting parameters

Drilling cutting parameters - cutting speed (VC), unit is m / min, is determined by the peripheral speed, cutting speed with spindle speed (n) to get. The spindle speed is represented by the number of revolutions per minute. In a turn, the drill circumference of π × Dc, Dc is the drill diameter. The drilling machining parameter of the cutting speed will change, which depends on the cross section of a cutting edge on the drill. From the drill center to the circumference, its speed is from zero to maximum. Recommended cutting speed is the highest speed of circumference.

Drilling machining parameter - per revolution feed (fn), the unit is mm / min, the axial movement of said tool in a turn. It is used to calculate the transmittance, and used to represent the feed capacity of the drill.

The drilling cutting parameters - penetration or units of mm / min feed speed (Vf), the tool relative to the workpiece feed length / unit time, also called the machine feed table feed. Per revolution feed and spindle speed multiplied by the drill penetrate workpiece rate.

The drilling machining parameter - hole depth (L) and radial depth of cut (ap) and feed per tooth (fz), is an important factor for calculation.

Cutting speed VC, penetration Vf, spindle speed n feed per revolution fn

Hole machining characteristics

Hole may be roughing manufactured finishing cuts made??. Most of the workpiece at least one hole needs to be processed, depending on the different uses and functions of the hole, and it needs to be processed to various limits. Hole characteristics of the main factors include: diameter, depth, quality, material processing conditions or working conditions, reliability, productivity, can be expressed from the viewpoint of hole machining.

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