Maintenance of CNC Milling Cutter Saw Blades and Selection of Number of Teeth

CNC milling cutter is the main tool for mold processing, and its processing volume accounts for about 80%-90% of the total mold cutting process, thus becoming the focus of mold processing tool development.

In the process of milling machine processing with CNC milling cutters, it is very important to choose the correct number of milling cutter teeth in order to maximize the processing efficiency. For example, a sparse-tooth milling cutter with a diameter of 100mm has only 6 teeth, while a dense-tooth milling cutter with a diameter of 100mm can have 8 teeth. Whether the cutter teeth are dense or not will affect the production efficiency and product quality. If the cutter teeth are dense, the production efficiency will be improved, and the quality of the machined workpiece will be better, but the dense cutter teeth will also lead to inconvenient chip discharge. According to the diameter of the teeth, they can be divided into sparse teeth, fine teeth, and dense teeth. The number of teeth on the saw blade must be chosen so that the chips curl properly and leave the cutting zone easily. Improper chip space will result in chip trapping, damage to the cutting edge and possible damage to the workpiece. At the same time, the saw blade should have sufficient density to ensure that no less than one blade is cutting at any time during the cutting period. If this is not guaranteed, it will cause severe impact.

This will lead to serious consequences such as cracking of the cutting edge, damage to the tool and overloading of the machine tool.

With the advancement of CNC technology and the general improvement of automation, the production and application of machining center machine tools, CNC lathes, and CNC milling machines are becoming more and more extensive, and the demand for high-precision and high-efficiency CNC milling cutters is also increasing. The three-sided edge milling cutter is one of the more popular ones, and its saw blades are also various.

Here is a brief introduction to some basic knowledge and precautions for use:

Basic knowledge points of three-sided edge milling cutter saw blade:

Tooth type: no teeth, coarse teeth, medium teeth, fine teeth

Tooth shape: sharp teeth, arc teeth,

Gear opening method: milling, grinding, full grinding

Surface coating: natural color, titanium coating, nitride coating, colorful coating.

Uses: Mainly used for narrow and deep groove processing or cutting of iron, aluminum, copper and other metal materials below medium hard. It can also be used for milling of non-metals such as plastic and wood. Ultra-hard material saw blade milling cutter, carbide saw blade is mainly used for milling of difficult-to-cut materials (heat-resistant steel, stainless steel and other high-strength steel). High-speed steel circular saw blades are suitable for cutting: iron pipes, copper pipes, aluminum pipes, angle steel, stainless steel and other materials. Fine teeth are generally used for machining steel and cast iron, and for machining shallow grooves or cutting; the number of teeth is small, and the coarser milling cutters are generally used for machining aluminum, copper and other accumulated metals, and for machining deep grooves or cuttings. cut. High-speed steel round knives can be used to cut cloth, plastic, rubber, various paper products, as well as meat and bones.

The following matters must be paid attention to when using the three-sided edge milling cutter saw blade:

1) It must be confirmed that the material to be cut has been firmly fixed.

2) The cutting conditions should be set according to the material to be cut.

3) When installing the saw blade, it is necessary to clean up the waste in the clamp part, and then pay attention to the direction of rotation to fix the saw blade.

4) When starting and stopping cutting, do not feed the tool too fast, otherwise it may cause broken teeth and damage.

5) Make full use of cutting oil. (It is hoped that the cutting oil should be selected according to the material to be cut)