Classification of PCB router machine routing bits

1. PCB router machine routing bits material:

White steel: easy to wear, used for roughing copper and small steel materials.
Tungsten steel: used for angle clearing (especially steel) and light knife.
Alloy: similar to tungsten steel knife.
Purple knife: used for high-speed cutting, not easy to wear.


2. PCB router machine routing bits head and shape:

Flat bottom Bits: used for plane and straight side to clear plane angle.
Ball knife: used for medium light and light knife on various surfaces.
Bull nose knife: (single side, double side and five sides): used for roughening steel (r0.8, r0.3, r0.5, r0.4).
Rough leather knife: used for rough cutting. Pay attention to the allowance (0.3).
Flat end milling cutter: finish milling or rough milling, milling grooves, removing a large number of blanks, fine milling of small area horizontal plane or contour;
Ball end milling cutter: semi finish milling and finish milling of curved surface; The knife can finish milling small chamfers on steep surfaces / straight walls.
Round nose milling cutter: rough milling with small surface change, less narrow concave area and more relatively flat area.
Wave edge milling cutter: milling workpieces with rough surface such as gas cutting steel plate. In particular, wave edge end milling cutter can show its excellent cutting performance.

3. Tool bar:

Straight rod knife: straight rod knife is suitable for various occasions.
Inclined rod cutter: but not applicable to straight body surface and surface with slope less than rod slope.


4. PCB router machine blade:

The more the number of two edges, three edges, four edges, five edges and six edges, the better the effect, but the more work is done, the speed and feed are adjusted accordingly, the more the number of edges and the longer the service life.

5. Difference between ball knife and flying knife and light knife:

Ball knife: when the concave ruler is smaller than the ball ruler and the plane ruler is smaller than the ball R, the light cannot be seen (the bottom angle cannot be cleared).

Throwing Knife: the advantage is that it can clear the bottom angle. Comparison of the same parameters: v = R* ω The rotating speed is much faster (flying knife), the power is large, and the light is bright. Flying knife is mostly used for contour shape. Sometimes flying knife does not need medium light. The disadvantage is that the concave size and plane ruler are less than the diameter of flying knife.

Milling cutters can be divided into milling insert and integral end milling cutter according to the general direction.

According to the cooling mode, the integral end milling cutter can be divided into external cooling and internal cooling. The difference is: the internal cooling milling cutter has cooling holes, which has better cooling effect and improves cutting performance.

According to the shape, the specifications of milling insert can be roughly divided into the following types (the specifications produced by different brands will vary). The top angle is large, suitable for rough machining, and the top angle is small, suitable for fine machining.