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Milling tool with coolant distributing holes

A technology for milling cutters and coolants, applied in milling cutters, manufacturing tools, milling machine equipment, etc., can solve the problem of limited tool life of milling cutters

Pending Publication Date: 2021-12-17
SANDVIK COROMANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the grooves improve cooling, existing milling tools still have limited tool life, especially when cutting difficult-to-machine materials such as nickel-based alloys or titanium

Method used

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  • Milling tool with coolant distributing holes
  • Milling tool with coolant distributing holes
  • Milling tool with coolant distributing holes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] Figure 1 to Figure 7 A milling tool according to an embodiment of the invention is shown. The milling tool is a solid end mill 1 with a cutting head 2 integrally formed into the shank. The cutting head has a front end 3 and a rear end 4 and a longitudinal axis L extending between the front and rear ends. The end mill 1 has four flutes 5 and a corresponding number of intermediate portions 6 corresponding to the cutting teeth. The cutting teeth 6 and flutes 5 extend axially along the cutting head following a curved helical path about the longitudinal axis L of the cutting head. Such as image 3 As shown in , each flute has a leading flute surface portion 8 and a trailing flute surface portion 9 with respect to the direction of rotation R of the tool. In this embodiment, the leading edge 11 corresponding to the cutting edge 14 is formed at the intersection of the trailing flute surface portion 9 and the radially outer portion of the tooth 6 . The radially outwardly f...

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PUM

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Abstract

The invention relates to a milling tool (1, 10) comprising an elongate cutting head (2) having a front end (3), a rear end (4), and a longitudinal axis (L) extending therebetween, wherein the cutting head (2) comprises a plurality of flutes (5) separated from each other by a corresponding number of intermediate portions (6), wherein the flutes (5) extend axially along the cutting head (2). The cutting head comprises a coolant distributing through-hole (7) extending between two adjacent flutes (5) through the intermediate portion (6) located therebetween, for influencing the distribution of coolant provided to the milling tool (1).

Description

technical field [0001] The invention relates to a milling tool for machining with a coolant supply. Background technique [0002] A wide variety of components are machined from many different types of materials, each of which has different physical and mechanical properties that are affected by alloying elements, heat treatment, hardness, and more. Accordingly, various cutting tools, such as rotary milling tools, have been developed to machine workpiece materials. Traditionally, rotary milling tools comprise a tool body provided with helical or axially straight teeth, which in turn are separated by flutes. Due to the considerable thermal stress at the tool, liquid coolant is usually delivered to the area of ​​the cutting teeth. Coolant can be supplied externally or through internal coolant passages to the chip flutes. Cooling increases the cutting efficiency and service life of the tool. [0003] EP3342518 discloses a rotary milling tool comprising helical teeth and flut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23C5/28B23C5/10
CPCB23C5/10B23C5/28B23C2210/40B23C2210/32B23C2250/12
Inventor 加埃塔诺·皮塔拉
Owner SANDVIK COROMANT