Why Core Thickness of End Mills Count Matters?
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Why Core Thickness of End Mills Count Matters?
Many salespersons who sell end mills know that the geometry and coating of end mills have a great influence on the processing of tools, including the number of edges and shapes. How does the number of blades affect the efficiency of processing? Then they might not understand. The answer is core thickness and chip flutes. What is core thickness? Why does the core thickness affect the cutting efficiency? Today we will discuss this issue.
What is core thickness?
Core thickness is an important factor in determining the rigidity and chip flutes of an end mill. The core thickness of the integral end mill is generally 60% of the outer diameter. The core thickness increases, the cross-sectional area increases, and the rigidity increases, but the chip pockets decrease, and the chip removal performance becomes worse; on the contrary, the core thickness decreases, the rigidity decreases, but the chip removal performance increases. The larger the thickness of the core thickness is, the better the rigidity of the end mill has, the larger vibration reduction performance of the end mills are, thereby prevents the machining surface from tilting, but the harder it is to eject a chip.
| Core Thickness | 54% | 56% | 60% |
| Cross-sectional Area | |||
| Flutes | 2 Flutes | 3 Flutes | 4 Flutes |
| Advantages | Chip disposability is excellent. Low cutting resistance. | Smooth surface finish. Chip load is large. | High rigidity. Smooth surface finish. |
| Disadvantages | Low rigidity. | Diameter is not easy measured. | Chip disposability is poor. |
| Application | Slotting, side milling, sinking etc. | Slotting, side milling, heavy cutting, finishing | Shallow slotting, side milling, finishing |
When choosing an end mill for a particular milling operation, there are many possibilities as to which tool is best for the job. We will comprehensively consider all aspects of influencing factors, such as the material you use, the specific characteristics of the tool and the choice of coating, the machine tool and the tool holder all play an indispensable role, and may have a significant effect on whether these things add value or significant cost to your milling application.
Please keep in mind that no matter what kind of end mills you want, square end mill, ball nose end mill, corner radius end mill, 2-flute, or 4-flute, Our can provide them.
For more information about end mills, to inquire about buying it for your shop or for help selecting the right tool, contact us.
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