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4 Flute End Mill

  • Solid Carbide 4 Flute Square End Mill

  • 4 Flute

  • Spiral

  • High Speed Cutting

  • Cast Iron, Alloy Steel, Tool Steel,Stainless Steel, High-temp Alloys, Titanium Alloys, Non-ferrous Alloys

  • TiAlN, TiSiN, Nano

  • 0.005-0.01

  • Stub, Standard, Extra-Long,38-330mm

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Quantity:

4 Flute End Mill Specifications


1、4 Flute End Mill Standard type

Model No. Flute Diameter (mm) Flute length (mm) Shank Diameter (mm) Overall length (mm)
D1*3*D4*50 1 3 4 50
D1.5*4.5*D4*50 1.5 4.5 4 50
D2*6*D4*50 2 6 4 50
D2.5*7*D4*50 2.5 7 4 50
D3*8*D4*50 3 8 4 50
D3.5*10*D4*50 3.5 10 4 50
D4*10*D4*50 4 10 4 50
D5*13*D6*50 5 13 6 50
D6*15*D6*50 6 15 6 50
D8*20*D8*60 8 20 8 60
D10*25*D10*75 10 25 10 75
D12*30*D12*75 12 30 12 75
D14*45*D14*100 14 45 14 100
D16*45*D16*100 16 45 16 100
D18*45*D18*100 18 45 18 100
D20*45*D20*100 20 45 20 100


2、4 Flute End Mill Extra Length Type

Model No.

Flute Diameter (mm)

Flute length (mm)

Shank Diameter (mm)

Overall length (mm)

D4*12*D4*75

4

12

4

75

D4*16*D4*100

4

16

4

100

D6*20*D6*75

6

20

6

75

D6*30*D6*100

6

30

6

100

D8*25*D8*75

8

25

8

75

D8*35*D8*100

8

35

8

100

D10*40*D10*100

10

40

10

100

D12*45*D12*100

12

45

12

100

D6*35*D6*150

6

35

6

150

D8*40*D8*150

8

40

8

150

D10*50*D10*150

10

50

10

150

D12*60*D12*150

12

60

12

150

D14*65*D14*150

14

65

14

150

D16*70*D16*150

16

70

16

150

D18*70*D18*150

18

70

18

150

D20*70*D20*150

20

70

20

150


4 Flute End Mill Features


1、Multiple Cutting Edges (Flutes):

The defining characteristic of 4-flute end mills is the presence of four cutting edges or flutes. These flutes run along the length of the tool and are responsible for the material removal during the milling process.


2、Stability and Rigidity:

The additional flutes contribute to the stability and rigidity of the tool. This enhanced stability is advantageous in achieving precision during machining, especially in applications where maintaining tight tolerances is crucial.


3、Reduced Chip Load per Tooth:

With more flutes, the chip load per tooth is typically reduced compared to fewer-fluted end mills. This can lead to improved surface finishes and reduced wear on the cutting edges, contributing to longer tool life.


4、Enhanced Surface Finish:

4-flute end mills are often chosen for finishing operations where a smooth surface finish is a priority. The increased number of flutes can contribute to a finer finish on the machined surface.


5、Efficient Chip Evacuation:

While not as open as 2-flute or single-flute designs, 4-flute end mills still provide effective chip evacuation. The multiple flutes create channels for chip removal, reducing the risk of chip recutting and improving overall machining efficiency.


6、Versatility:

4-flute end mills are versatile and can be used for a variety of milling tasks. They are suitable for both roughing and finishing operations, providing a good balance between material removal rates and surface finish.


7、Suitable for Steels and Harder Materials:

The increased number of flutes and enhanced stability make 4-flute end mills suitable for machining harder materials, including steels. The tool's design helps in efficiently cutting through tough materials.


8、Balanced Cutting Forces:

The four flutes distribute cutting forces more evenly compared to fewer-fluted end mills. This balance contributes to stability during cutting, reducing the risk of vibration and improving tool life.


9、High Feed Rates:

4-flute end mills can handle higher feed rates compared to end mills with fewer flutes. This capability can lead to faster material removal and increased productivity in machining operations.


10、Corner Radii:

Some 4-flute end mills are designed with corner radii, providing additional strength to the corners of the tool and reducing the risk of chipping in demanding applications.



4 Flute End Mill Advantages:


1、Enhanced Stability and Rigidity:

The multiple flutes contribute to the stability and rigidity of the end mill. This enhanced stability is beneficial for achieving precision and accuracy during machining, particularly in applications where tight tolerances are critical.


2、Improved Surface Finish:

4-flute end mills are often chosen for finishing operations due to their ability to provide a finer surface finish. The increased number of flutes can contribute to smoother cuts and reduced tool marks on the machined surface.


3、Efficient Chip Evacuation:

While not as open as designs with fewer flutes, 4-flute end mills still provide effective chip evacuation. The multiple flutes create channels for chip removal, reducing the risk of chip recutting and improving overall machining efficiency.


4、Versatility:

4-flute end mills are versatile tools suitable for a wide range of milling applications. They are well-suited for both roughing and finishing operations, offering a good balance between material removal rates and surface finish.


5、Reduced Chip Load per Tooth:

With more flutes, the chip load per tooth is typically reduced compared to fewer-fluted end mills. This reduction can lead to improved surface finishes and reduced wear on the cutting edges, contributing to longer tool life.


6、Balanced Cutting Forces:

The four flutes distribute cutting forces more evenly compared to fewer-fluted end mills. This balanced distribution helps minimize vibration during cutting, improving tool life and reducing the risk of chatter.


7、High Feed Rates:

4-flute end mills can handle higher feed rates compared to end mills with fewer flutes. This capability can result in faster material removal and increased productivity in machining operations.


8、Suitable for Steels and Harder Materials:

The increased number of flutes and enhanced stability make 4-flute end mills well-suited for machining harder materials, including steels. The design facilitates efficient cutting through tough materials.


9、Reduced Heat Buildup:

With multiple flutes in contact with the material, 4-flute end mills can distribute heat more effectively. This characteristic helps reduce heat buildup during machining, contributing to longer tool life and improved machining performance.


10、Corner Radii Options:

Some 4-flute end mills are designed with corner radii, providing additional strength to the corners of the tool. This design feature can be advantageous in applications where corner strength is crucial.


4 Flute End Mill Coatings:


The purpose of applying a coating to a carbide 4-flute end mills  is to enhance its performance, durability, and overall effectiveness in various machining operations.


Titanium Nitride (TiN):

TiN is a popular coating choice for carbide 4-flute end mills . It offers excellent wear resistance and provides a protective layer on the tool's surface, reducing friction and extending tool life. TiN coatings are effective when machining non-ferrous materials and can enhance performance in general-purpose milling applications.


Titanium Carbonitride (TiCN):

TiCN coatings offer improved hardness and heat resistance compared to TiN. They are suitable for machining ferrous materials, including steel and cast iron. TiCN coatings provide excellent wear resistance, reduced friction, and increased tool life.


Aluminum Titanium Nitride (AlTiN):

AlTiN coatings are known for their exceptional hardness, high-temperature resistance, and excellent wear resistance. They are suitable for machining abrasive materials, such as hardened steels and stainless steels. AlTiN coatings provide extended tool life and enhanced performance in high-speed machining applications.


Diamond-Like Carbon (DLC):

DLC coatings offer excellent hardness, low friction, and high lubricity. They are effective when machining aluminum, copper, and non-ferrous materials. DLC coatings can reduce built-up edge and enhance the chip flow, resulting in improved surface finish and reduced cutting forces.


4 Flute End Mill Applications


1、General Milling:

4-flute end mills are versatile and well-suited for general milling tasks. They can efficiently remove material from a workpiece, making them suitable for a wide range of materials, including metals, plastics, and composites. These end mills are capable of producing smooth surface finishes and are commonly used in milling operations such as face milling, slotting, and contouring.


2、Slotting and Profiling:

The multiple flutes of a 4-flute end mill make it ideal for slotting and profiling operations. The flutes allow for better chip evacuation, reducing the chances of chip clogging and resulting in more efficient cutting. They are commonly used for creating slots, keyways, and other intricate profiles on a workpiece.


3、Finishing Operations:

4-flute end mills excel in finishing applications. Their increased number of flutes distributes the cutting load across more edges, resulting in smoother finishes and reduced chances of chatter or vibration during the cut. This is particularly advantageous when dealing with delicate or high-precision workpieces, as it helps to achieve tight tolerances and high-quality surface finishes.


4、Side Milling:

Side milling refers to the process of machining the side of a workpiece using a peripheral milling cutter like the 4-flute end mill. Due to their design, 4-flute end mills are well-suited for side milling tasks, providing good stability and improved material removal rates. This application is commonly used for machining slots, grooves, and other features on the sides of a workpiece.


Video Of 4 Flute End Mill


FAQs for 4 Flute End Mill


1、What is a 4 Flute End Mill and how does it work?

A 4 Flute End Mill is a cutting tool used in machining applications to remove material from a workpiece. It is equipped with four cutting edges or flutes, each positioned at an equal distance around the tool's circumference. These flutes enable the end mill to efficiently cut and shape the material as it rotates. The primary working principle behind a 4 Flute End Mill involves the gradual removal of material as the cutting edges make contact with the workpiece, resulting in precise and smooth machining outcomes.

They have four cutting edges, providing better cutting performance and increased efficiency compared to single or double-fluted end mills.

Their design allows for smooth cutting action and improved chip evacuation, reducing the chances of chip clogging and material damage.


2、Which materials are suitable for machining with a 4 Flute End Mill?

4 Flute End Mills are versatile tools capable of machining various materials. They are suitable for cutting:

Aluminum and Aluminum Alloys: Ideal for aerospace and automotive industries.

Mild and Carbon Steels: Commonly used in general machining applications.

Non-Ferrous Metals: Such as copper, brass, and bronze.


3、What factors affect the performance of a 4 Flute End Mill?

The performance of a 4 Flute End Mill can be influenced by several factors:

Cutting Speed: The speed at which the end mill rotates affects the cutting performance and tool life.

Depth of Cut: Controlling the depth of cut is crucial to prevent tool breakage and ensure optimal material removal.

Material Hardness: Harder materials may require adjustments to the cutting speed and feed rate to avoid premature tool wear.


4、How can I prolong the life of a 4 Flute End Mill?

To extend the life of a 4 Flute End Mill and maintain its performance, consider the following tips:

Proper Feeding: Ensure a consistent and appropriate feed rate to prevent excessive wear and tool breakage.

Coolant Usage: Using a suitable coolant or lubricant helps dissipate heat and reduces friction during machining.

Tool Storage: Store the end mills in a dry and clean environment, away from moisture and contaminants, to prevent corrosion.


FAQs for the factory :


1、Who Is RUIYU?

Ruiyu is a manufacturer of Carbide Cutting Tools: End Mills, Drills, Routers, Chamfer Mills and Specials.



2、How do you ensure the quality of the products ?

We have precision detection machine, quality inspectors check cutters every piece to guarantee the quality of the products.



3、Can you design the cutters according to the drawings ?

Yes, we have professional technician with rich experience and will deliver the samples for the approval before bulk production.



4、Can you supply with drawing or on an ODM basis?

Yes, we have professional technician with rich experience and will deliver the samples for the approval before bulk production.We can produce according to your drawings; we can supply goods with medium-sized packaging without our logo, then you can repack at your side with your brand packaging; if volume is big, we can pack at our side with your brand packaging.


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