GB2364007A - Multi-fluted milling cutter - Google Patents
Multi-fluted milling cutter Download PDFInfo
- Publication number
- GB2364007A GB2364007A GB0110829A GB0110829A GB2364007A GB 2364007 A GB2364007 A GB 2364007A GB 0110829 A GB0110829 A GB 0110829A GB 0110829 A GB0110829 A GB 0110829A GB 2364007 A GB2364007 A GB 2364007A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cutting
- milling cutter
- tool
- flutes
- rotary cutting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/32—Details of teeth
- B23C2210/326—File like cutting teeth, e.g. the teeth of cutting burrs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
A rotary cutting tool 2 formed with a large number of helical cutting teeth 6, preferably more than 20 and up to over 100, where the ratio of the number of cutting teeth to tool diameter in mm is at least 1.5 and is particularly effective when used in conjunction with the supply of high pressure coolants.
Description
2364007 MULTI-FLUTED MILLING CUTTER The invention concerns rotary cutting
tools.
In particular the invention relates to a milling cutter having an increased number of cutting flutes formed on the cutter.
Acccrding to the present invention a rotary cutting tool is provided with at least twenty helical cutting teeth.
A rotary cutting tool of the kind referred to may have up to i 00 helical cutting teeth and may be even more Expressed in another format, a rotary cutting tool in accordance with the present invention has a ratio of the number of cutting teeth to tool diameter in millimetres of about 1 5:1 or higher.
The invention will now be described in more detail with reference to a milling cutter depicted in Figures 1 and 2 of the accompanying illustration which possesses fifty cutting teeth.
The milling cutter shown has an essentially conventional configuration comprising a hardened steel tool 2 of about 16 mm diameter circular cross-section Smooth sided along most of its length 4, towards its cutting end 6 it is formed with a multiplicity of helically formed cutting flutes The particular cutter shown has 50 cutting flutes, but it has been found beneficial for milling a variety of materials (metals and metal alloys) to use cutters formed with a multiplicity of cutting flutes the number of which are in the range of 20 up to 100 depending upon the material.
It is envisaged that 100 is not a strict upper limit for the number of flutes and that still higher numbers may be useful Further improvements which may assist include the use of high pressure coolant and low friction coatings The rotary cutting tool being described is found to be particularly effective when used in conjunction with the high speed milling method described in our co-pending GB Patent Application No 0011315 9 (priority application).
The depth of the flutes, helix geometry and cutting parameters are also important parameters The number of flutes and the depth of each for swarf evacuation appears to have an optimum number for each material being cut Unless the milling cutter is used for slotting, very deep flutes are not essential and shallower flutes means that the number of cutting helixes can be higher However, it also means that each cut is shallower A reasonable radial depth of cut needs to be maintained to maintain a reasonable metal removal rate Some metals tend to form chips or scallops of a characteristic size which may be used as an indicator The depth of cut, the number of flutes, the speed of cutter rotation all combine to yield the material removal rate.
Coolant pressure, particularly high coolant pressure delivery at tens of bar pressure, and cutter coatings also make significant contributions to milling cutter overall efficiency.
The principles of the invention may also be extended to include drilling tools so that a drill may be formed having not two cutting helixes, as in conventional drills, but having a much larger number at least twenty or so cutting helixes Also the invention may be applied to all types of shaped cutters for example: side mills, end mills, ball end cutters and formed cutters etc The cutting tool illustrated in the drawings is a side mill, those familiar with the art will be aware of the differences between this and the other kinds of tool mentioned.
Claims (4)
1 A rotary cutting tool formed with at least twenty helical cutting teeth.
2 A rotary cutting tool as claimed in claim 1 formed with a multiplicity of cutting teeth in the range of about 20 to at least 100.
3 A rotary cutting tool as claimed in either claim 1 or claim 2 wherein the ratio of the number of cutting teeth to tool diameter in millimetres is about 1 5:1 or higher.
4 A rotary cutting tool substantially as hereinbefore described with reference to the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0110829A GB2364007A (en) | 2000-05-10 | 2001-05-03 | Multi-fluted milling cutter |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB0011215.1A GB0011215D0 (en) | 2000-05-10 | 2000-05-10 | Multi-fluted milling cutter |
| GB0110829A GB2364007A (en) | 2000-05-10 | 2001-05-03 | Multi-fluted milling cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0110829D0 GB0110829D0 (en) | 2001-06-27 |
| GB2364007A true GB2364007A (en) | 2002-01-16 |
Family
ID=26244238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0110829A Withdrawn GB2364007A (en) | 2000-05-10 | 2001-05-03 | Multi-fluted milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2364007A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003086689A1 (en) * | 2002-04-08 | 2003-10-23 | Third Wave Systems | High-frequency tooth pass cutting system |
| WO2006014711A1 (en) * | 2004-07-22 | 2006-02-09 | Third Wave Systems | High-frequency tooth pass cutting device and method |
| FR2946551A1 (en) * | 2009-06-10 | 2010-12-17 | Snecma | Rotary tool for machining hardness material e.g. ceramic matrix composite, in machine tool e.g. milling machine, has cutting surface consisting set of edges distributed on circumference of tool in regular manner |
| WO2012172710A1 (en) | 2011-06-17 | 2012-12-20 | 日立ツール株式会社 | Multi-edge endmill |
| US9687921B2 (en) | 2006-03-28 | 2017-06-27 | Precicarb | Carbide cutting tool and method of making such a tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB911658A (en) * | 1960-02-10 | 1962-11-28 | Svenska Tandsticks Aktiebolage | Improvements in and relating to methods and apparatus for making fold lines in fibrous material |
| GB1088232A (en) * | 1964-01-16 | 1967-10-25 | Giddings & Lewis | Machine tool power drawbolt |
| DE3243522A1 (en) * | 1982-11-25 | 1984-05-30 | Lukas-Erzett Vereinigte Schleif- und Fräswerkzeugfabriken, 5250 Engelskirchen | Cutting tool |
| FR2635478A1 (en) * | 1988-08-19 | 1990-02-23 | Chasset Jean Pierre | Rotary cutting tool for surfacing and grooving, of the milling cutter type |
| JPH09300119A (en) * | 1996-05-16 | 1997-11-25 | Toyota Motor Corp | Tool for cutting |
-
2001
- 2001-05-03 GB GB0110829A patent/GB2364007A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB911658A (en) * | 1960-02-10 | 1962-11-28 | Svenska Tandsticks Aktiebolage | Improvements in and relating to methods and apparatus for making fold lines in fibrous material |
| GB1088232A (en) * | 1964-01-16 | 1967-10-25 | Giddings & Lewis | Machine tool power drawbolt |
| DE3243522A1 (en) * | 1982-11-25 | 1984-05-30 | Lukas-Erzett Vereinigte Schleif- und Fräswerkzeugfabriken, 5250 Engelskirchen | Cutting tool |
| FR2635478A1 (en) * | 1988-08-19 | 1990-02-23 | Chasset Jean Pierre | Rotary cutting tool for surfacing and grooving, of the milling cutter type |
| JPH09300119A (en) * | 1996-05-16 | 1997-11-25 | Toyota Motor Corp | Tool for cutting |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003086689A1 (en) * | 2002-04-08 | 2003-10-23 | Third Wave Systems | High-frequency tooth pass cutting system |
| WO2006014711A1 (en) * | 2004-07-22 | 2006-02-09 | Third Wave Systems | High-frequency tooth pass cutting device and method |
| JP2008507418A (en) * | 2004-07-22 | 2008-03-13 | サード ウェイヴ システムズ | Cutting device and method with high blade passing frequency |
| US9687921B2 (en) | 2006-03-28 | 2017-06-27 | Precicarb | Carbide cutting tool and method of making such a tool |
| FR2946551A1 (en) * | 2009-06-10 | 2010-12-17 | Snecma | Rotary tool for machining hardness material e.g. ceramic matrix composite, in machine tool e.g. milling machine, has cutting surface consisting set of edges distributed on circumference of tool in regular manner |
| WO2012172710A1 (en) | 2011-06-17 | 2012-12-20 | 日立ツール株式会社 | Multi-edge endmill |
| CN103764326A (en) * | 2011-06-17 | 2014-04-30 | 日立工具股份有限公司 | Multi-edge endmill |
| CN103764326B (en) * | 2011-06-17 | 2015-12-16 | 日立工具股份有限公司 | Multiflute end mill |
| US9579734B2 (en) | 2011-06-17 | 2017-02-28 | Mitsubishi Hitachi Tool Engineering, Ltd. | Multi-flute endmill |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0110829D0 (en) | 2001-06-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |