cnc parts

How to grind the Four-flute end mill

four flute end mill
four flute end mill

End mill sharpening key points
1. Key points, for slotting: radial rake angle, core thickness, helix angle, slot length, cylindrical toughness bandwidth, the grinding wheel fillet, groove type requirements;
2, the key points of the Zhou edge: radial back angle, blade diameter, blade length, circumferential blade width, diameter jump, inverted cone;
3. The key points of the end edge: the front rake angle, the rear rake angle, the end kernel width, the blade inclination angle, and the end jump;
4, the key points of the backlash: chisel edge, over-center amount, backlash angle, tooth expansion and exit, bottom corner arc, fusion depth, fusion angle, grinding wheel selection, length of the front surface of the ball head slotting;
5, other key points: ball head, arc, taper, chamfer, cut, go high, profile, passivation, appearance.

cnc parts

What is the difference between end mills and ball end mills?

End mills and ball end mills, one for the ball head, one for the flat bottom, the end mill for the main machining, the ball end milling cutter for the curved surface. Ball-end milling cutters and end mills are brought out and can be machined. Our company buys the tool grinding machine of Tuol machinery, which has a very good grinding effect.

Tapered Ball Nose End Mill Tungsten solid carbide Coated Tapered cone cnc milling cutter woodworking engraving bits

Shank diameter: 6mm

Total length: 50 75 100

Material: Tungsten Carbide

cnc parts

What is the end tooth that passes through the center on the end mill?

A tooth is over the center, that is, the end edge is beyond the center position. When is the note to work, allow me to give an example. When the keyway milling cutter is utilized to mill the keyway, if there is no tooth over the center, there will be a high point in the middle of the milled slot, so the 2-blade keyway cutter is a pair of teeth. All over the center.

If the milling cutter is working with a circumferential tooth, then the end tooth is not important at the center. Generally speaking, when we produce the tool, the odd-numbered edge milling cutter has a tooth over center and an even-numbered edge milling cutter with a couple of teeth passing through the center.
2-blade cutter sometimes has a pair of centers, sometimes a tooth that passes through the center.

cnc parts

How to choose end mill to improve the efficiency of mold processing

In general, we will select the end mill from the following three points:
1. Select the type of CNC tool coating according to the type and hardness of the machined workpiece. For the processing of workpieces with hardness below HRC55 such as carbon steel, the TIALN coating of KHC tungsten steel milling cutter is optional. When processing workpieces with quenching and heat-treating materials up to about 60 HRC, ALTIN ​​Coatings are available. In the processing of workpieces with higher hardness, the tool shape, carbide material and coating can be selected for high hardness processing TISIN coating for high hardness HRC65 materials.
2. Select the shape of the end mill neck according to the shape of the machined workpiece. The neck shape of the ball end mill is divided into standard type, long neck type and long edge type, and extended shank type, which can be chosen according to the processing depth and shape of the workpiece. Long neck type (deep groove milling cutter) can be used for deep digging, and the angle of interference should be considered when selecting. At the same time, compared with the long neck type, the stretched edge type end mill has high rigidity, which can improve cutting conditions and achieve better machining accuracy.
3. Select end mills with unique ball head precision according to machining accuracy. Ball end mills typically have a circular arc accuracy of 10 μm, but there are also 5 μm high-precision end mills that can be used for high-precision machining.

  • Use of new ultra-fine fine tungsten steel bar grinding, high rigidity and toughness.
  • Wide application:High efficiency maching can be achived ranging from common copper maching.
  • Optimized structure:Approiate cominbation of sharp cutting edge and tool strength makes cutting easier and faster,extending tool life.
  • Versatile product series:Suitable for rough maching with high metal removal rate to finish maching with high surface quality.
  • Complete diameter range:Minium diameter of 0.25mm for maching of the smallest parts.
  • Use of excellent new blade shape, the surface is smooth, not easy to collapse, to enhance the rigidity of the tool, taking into account the rigidity of the tool and chip removal performance, making the cutting tool and chip more stable.
  • Round handle, chamfering, easy to use, increase the stability of the performance.
  • Tough and wear-resistant.
  • High strength and hardness.
  • Durable in use.
cnc parts

What is the difference between end mills and key milling cutters?

The difference between end mills and keyway cutters:
1. The end mill is generally four-bladed and three-bladed, and the keyway cutter is two-blade (favorable to ensure the diameter accuracy after re-grinding);
2. The main cutting edge of the end mill is designed on the circumference. The end face is on the cutting edge, and the main cutting edge of the keyway milling cutter is on the end face, and the cutting edge is on the circumference.
3. Therefore, the end mill should not be constituted axially. It must be used. It can be a tendency into the knife or spirally. The amount is not so large, because the chip pocket on the cutting edge is shallow. The keyway milling cutter feeds in the axial direction.
Therefore, it will wear near the end, mainly re-grind the end, and the cutting edge will not re-grind to ensure the matching precision of the machining groove (H9, N9).

Augusttools Cnc Endmill Carbide Cutting HRC55 3 Flutes Milling Cutter Roughing End Mill Metal Cutter Aluminum Copper Processing