How To Choose Milling Cutter?

March 10,2022

In the field of machining, CNC milling machine is a kind of application scene and frequency is very much precision equipment. The reasonable choice of CNC milling cutter has a profound influence on the machining efficiency and precision of CNC milling machine. So, what are the criteria for choosing CNC milling cutter?

 

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Choice Of Milling Cutter Diameter

 

The choice of milling cutter diameter is mainly to see the number of products and production, tool diameter depends on the specifications of equipment and parts of the processing size.

 

Plane Milling Cutter

 

Plane milling cutter, the diameter of the consideration is the power tool need should be in the range of the power of machine tool, also to be able to machine tool spindle as according to the selection, plane milling cutter diameter can be in accordance with D=1.5d (D is the diameter of the main shaft) to choose, at the time of bulk processing, can choose according to parts is 1.6 times of the width of the cutting tool diameter.

 

Slotting Cutter

 

The diameter and width of slot milling cutter are selected according to the size of processing parts, and its cutting power is guaranteed within the power range allowed by the machine tool.

 

Vertical Milling Cutter

 

The choice of vertical milling cutter diameter is mainly based on the processing size of parts, and to ensure that the power required by the tool is in the rated power range of the machine tool, for example, small diameter vertical milling cutter, you need to consider the highest speed of the machine tool is not able to achieve the lowest cutting speed of the tool (60 m/min).

 

Choice Of Milling Cutter Blade

 

For fine milling, it is recommended to choose grinding blades, which have relatively good dimensional accuracy. The positioning accuracy of the blade in the milling process will be relatively high, and better machining accuracy and surface roughness can be obtained. Used in finishing the development trend of grinding milling cutter blade is grinded roll groove, a cutting edge to form larger positive rake Angle, allowing the blade on the small depth, small feed chip, without sharp rake Angle of carbide insert, when using small feed and deep processing, blade friction artifacts, lead to discount the knives' service life.

 

Choice Of Milling Cutter Body

 

When choosing a milling cutter, want to consider its teeth, for example, the rough milling cutter with a diameter of one hundred mm only six teeth, but the one hundred mm diameter milling cutter has eight teeth, tooth pitch will decide the size of the milling time and participate in cutting blade number, affect the stable cutting, and power requirements of nc machine tools, Each milling cutter manufacturer has its own milling cutter with thick and dense teeth.

 

Fine milling processing, cutting depth is generally small, the size of 0.25~0.65mm, each tooth cutting load is small, the power required is not large, can choose dense tooth milling cutter, and can choose relatively large feed, because the metal cutting rate is always limited in fine milling, dense tooth milling cutter chip tolerance is small.

 

Coarse tooth milling cutter is mainly used for rough machining, because it has a relatively large chip slot, if the chip slot is not big enough, it will cause chip rolling difficulty or cutting with the tool body, parts friction, under the same feed speed, coarse tooth CNC milling cutter per tooth cutting load than dense tooth milling cutter cutting load is larger.

 

Rough milling under heavy load, too much may make the rigid cutting force more bad of the machine tool vibration, the vibration causes of cemented carbide cutter blade happen collapse edge, leading to the use of the tool to decrease birthday noodles, selects the rough milling cutter can reduce power requirements of nc machine tools, so, when the main shaft hole size is small, A rough-toothed cutter can be selected for efficient milling.

 

In Conclusion

 

The diameter, blade, and the cutter body are important when choosing the milling cutter. Sichuan Mingtaishun Carbide Co., Ltd is a specialized cutter manufacturer, welcome to contact us if you’re looking for cutters.

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