WO2010056021A2 - Blank insert, and insert and cutter utilizing the same - Google Patents

Blank insert, and insert and cutter utilizing the same Download PDF

Info

Publication number
WO2010056021A2
WO2010056021A2 PCT/KR2009/006561 KR2009006561W WO2010056021A2 WO 2010056021 A2 WO2010056021 A2 WO 2010056021A2 KR 2009006561 W KR2009006561 W KR 2009006561W WO 2010056021 A2 WO2010056021 A2 WO 2010056021A2
Authority
WO
WIPO (PCT)
Prior art keywords
insert
raised portions
peripheral side
inserts
side surfaces
Prior art date
Application number
PCT/KR2009/006561
Other languages
French (fr)
Other versions
WO2010056021A3 (en
Inventor
Hyun-Hwa Jeong
Original Assignee
Taegutec Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taegutec Ltd. filed Critical Taegutec Ltd.
Priority to EP09826253A priority Critical patent/EP2358493A4/en
Priority to CN2009801448671A priority patent/CN102209601A/en
Priority to BRPI0921012A priority patent/BRPI0921012A2/en
Priority to JP2011534409A priority patent/JP2012506780A/en
Publication of WO2010056021A2 publication Critical patent/WO2010056021A2/en
Publication of WO2010056021A3 publication Critical patent/WO2010056021A3/en
Priority to ZA2011/03257A priority patent/ZA201103257B/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/002—Milling elongated workpieces
    • B23C3/005—Rails
    • 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
    • B23C5/12—Cutters specially designed for producing particular profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/16—Milling-cutters characterised by physical features other than shape
    • B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
    • B23C5/202—Plate-like cutting inserts with special form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2200/00—Details of milling cutting inserts
    • B23C2200/08—Rake or top surfaces
    • B23C2200/085—Rake or top surfaces discontinuous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2200/00—Details of milling cutting inserts
    • B23C2200/16—Supporting or bottom surfaces
    • B23C2200/164—Supporting or bottom surfaces discontinuous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2200/00—Details of milling cutting inserts
    • B23C2200/16—Supporting or bottom surfaces
    • B23C2200/165—Supporting or bottom surfaces with one or more grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2200/00—Details of milling cutting inserts
    • B23C2200/20—Top or side views of the cutting edge
    • B23C2200/203—Curved cutting edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2200/00—Details of milling cutting inserts
    • B23C2200/20—Top or side views of the cutting edge
    • B23C2200/205—Discontinuous cutting edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/16—Fixation of inserts or cutting bits in the tool
    • B23C2210/168—Seats for cutting inserts, supports for replacable cutting bits

Definitions

  • This disclosure is related to blank inserts of specific shapes, inserts machined from the blank inserts, and cutters mounted with the inserts. These inserts are typically used with cutters for rail machining, have longer durability by providing more cutting edges than conventional inserts, and allow reduced production cost.
  • Rail machining cutters may have various shapes according to the shape of the rail to be machined, and thus various insert shapes are also needed.
  • FIGs. 1 and 2 depict situations where cutters mounted with various kinds of inserts in a specific arrangement are machining specific portions of rails. Inserts mounted on these cutters need edges with various convex or concave curvatures which are generally formed by grinding regular quadrilateral negative blanks.
  • the present invention aims to expedite the grinding process, to save raw material, and to extend the service life of cutting inserts which have various curvatures of their cutting edges. Also, the present invention aims to provide cutters which have a pocket structure that allows stable mounting for cutting inserts which have various curvatures of their cutting edges.
  • a blank insert according to the present disclosure comprises upper and lower surfaces joined by peripheral side surfaces provided with a through-hole extending between the upper and lower surfaces, each of the upper and lower surfaces comprising two raised portions and a central notch; the two raised portions have a flat upper surface, adjoin two opposing side peripheral side surfaces, and extend along the entire length of the two opposing side peripheral side surfaces; and the central notch is formed as a flat plane between the two raised portions.
  • An insert according to the present disclosure comprises upper and lower surfaces joined by peripheral side surfaces provided with a through-hole extending between the upper and lower surfaces, each of the upper and lower surfaces comprising two raised portions and a central notch; the two raised portions adjoin two opposing side peripheral side surfaces, and extend along the entire length of the two opposing side peripheral side surfaces, and the upper surface comprises concave or convex surfaces curved along the two opposing side peripheral side surfaces; and the central notch is formed as a flat plane between the two raised portions.
  • the central notch may be depressed stepwisely from the raised portions.
  • a cutter mountable with the insert according to the present disclosure has an insert pocket comprising two side walls for supporting the peripheral side surfaces of the insert and one bottom wall that supports the lower surface of the insert, wherein the bottom wall has a protruded contact portion in the form of a flat plane corresponding to the central notch of the insert and depressed receiving portions for receiving the raised portions of the insert.
  • the inserts according to the present invention are ground such that there is less removed volume during grinding and thus raw material can be saved, and the grinding burden is much reduced compared with conventional inserts.
  • the inserts according to the present invention have a lower surface having the same structure as the upper surface and thus allows four cutting edges of the same shape. Therefore, the service life can be extended compared to that of conventional inserts.
  • the cutter pocket according to the present invention provides a sufficient support force in a radial direction by surface contact with the insert, and at the same time, can mount inserts with cutting edges of various curvatures.
  • FIGs. 1 and 2 are perspective views depicting situations where cutters mounted with various kinds of inserts are machining rails.
  • FIG. 3 is a perspective view showing a conventional blank insert and inserts ground from it.
  • FIG. 4 is a perspective view showing a blank insert of an embodiment according to an example of the present invention.
  • FIG. 5 is a perspective view showing inserts ground from the blank insert according to an example of the present invention.
  • FIG. 6 is a perspective view showing the ground portions of inserts according to an example of the present invention.
  • FIG. 7 is a perspective view showing states where various shapes of inserts are mountable to the cutter pocket according to an example of the present invention.
  • FIG. 4 shows a blank insert of an embodiment according to the present invention.
  • the blank insert 10 comprises upper and lower surfaces 100, 200 joined by peripheral side surfaces 310, 320, 330, 340, and is provided with a through-hole 400 extending between the upper and lower surfaces.
  • Each of the upper and lower surfaces 100, 200 comprises two raised portions 110, 120 and a central notch 130.
  • the two raised portions have a flat upper surface, are formed adjoining two opposing side peripheral side surfaces 310, 330, and extend along the entire length of the two opposing side peripheral side surfaces 310, 330.
  • the central notch 130 is a flat plane between the two raised portions, is formed by undercutting, and thus is depressed stepwisely from the raised portions.
  • the lower surface has an identical structure to that of the upper surface.
  • the central notch of the lower surface may extend either in a parallel or perpendicular direction to that of the upper surface.
  • FIG. 5 shows the blank insert before grinding, and examples of (a) a convex insert and (b) a concave insert obtained after grinding on the blank insert is finished.
  • These ground inserts have the same structure as the blank insert except for the ground portions (thickly painted portions in FIG. 6).
  • the two raised portions adjoin two opposing side peripheral side surfaces, and extend along the entire length of the two opposing side peripheral side surfaces, and the upper surface comprises concave or convex surfaces curved along the two opposing side peripheral side surfaces, and thus provides cutting edges having a concave or convex curvature.
  • the lower surface of these inserts has an identical structure to that of the upper surface. However, the central notch of the lower surface may extend either in a parallel or perpendicular direction to that of the upper surface.
  • the inserts according to the present invention are ground only on the raised portions, the volume removed during grinding is reduced and thus raw material can be saved, and the grinding burden is much reduced compared with the conventional inserts shown in FIG. 3.
  • the lower surface of the conventional insert is a flat surface and is provided with only two cutting edges
  • the lower surface of the inserts according to the present invention has the same structure as the upper structure, and thus provides four cutting edges of the same shape. Therefore, the durability of the inserts according to the present invention can be doubled compared to that of the conventional inserts.
  • the cutter insert pocket of the present invention comprises two side walls 640, 650 for supporting the peripheral side surfaces of the insert and one bottom wall 610-630 to support the lower surface of the insert, but the bottom wall has a protruded contact portion in the form of a flat plane corresponding to the central notch and depressed receiving portions 610,620 for receiving the raised portions of the insert.
  • the central notch of the insert and the protruded contact portion 630 of the cutter pocket are both flat and are in surface contact with each other, providing a support force in a radial direction.
  • the receiving portions 610,620 of the cutter pocket receive the raised portions of the insert, but are furnished with a sufficiently depressed space so as not to touch the cutting edges of the insert, so that it can receive raised portions of various shapes.

Abstract

An insert according to the present disclosure comprises upper and lower surfaces joined by peripheral side surfaces provided with a through-hole extending between the upper and lower surfaces, each of the upper and lower surfaces comprising two raised portions and a central notch. The two raised portions adjoin two opposing side peripheral side surfaces, and extend along the entire length of the two opposing side peripheral side surfaces, and the upper surface comprises concave or convex surfaces curved along the two opposing side peripheral side surfaces. The central notch is formed as a flat plane between the two raised portions. The inserts according to the present invention are ground such that there is less removed volume during grinding and thus raw material can be saved. In addition, the grinding burden is much reduced compared with conventional inserts, and the service life can be increased.

Description

BLANK INSERT, AND INSERT AND CUTTER UTILIZING THE SAME
This disclosure is related to blank inserts of specific shapes, inserts machined from the blank inserts, and cutters mounted with the inserts. These inserts are typically used with cutters for rail machining, have longer durability by providing more cutting edges than conventional inserts, and allow reduced production cost.
Rail machining cutters may have various shapes according to the shape of the rail to be machined, and thus various insert shapes are also needed. FIGs. 1 and 2 depict situations where cutters mounted with various kinds of inserts in a specific arrangement are machining specific portions of rails. Inserts mounted on these cutters need edges with various convex or concave curvatures which are generally formed by grinding regular quadrilateral negative blanks.
However, although a plurality of inserts with various shapes are mounted in the insert pockets of the cutter, it is very uneconomical to form pockets of different shapes to adapt to the various curves of the ground edges of different inserts. Therefore, by grinding only the upper surface of an insert as shown in FIG.3, the lower surface of a conventional insert remained flat so as to be in contact with the flat bottom wall of the pockets, thereby having an identical shape. In this case, when only the upper face is grinded, the insert is provided with only two cutting edges. As tangential inserts, as shown in FIGs. 1,2 and 3, have larger scrap volumes generated from grinding than those of radial type inserts, the cost for grinding accordingly becomes higher.
The present invention aims to expedite the grinding process, to save raw material, and to extend the service life of cutting inserts which have various curvatures of their cutting edges. Also, the present invention aims to provide cutters which have a pocket structure that allows stable mounting for cutting inserts which have various curvatures of their cutting edges.
A blank insert according to the present disclosure comprises upper and lower surfaces joined by peripheral side surfaces provided with a through-hole extending between the upper and lower surfaces, each of the upper and lower surfaces comprising two raised portions and a central notch; the two raised portions have a flat upper surface, adjoin two opposing side peripheral side surfaces, and extend along the entire length of the two opposing side peripheral side surfaces; and the central notch is formed as a flat plane between the two raised portions.
An insert according to the present disclosure comprises upper and lower surfaces joined by peripheral side surfaces provided with a through-hole extending between the upper and lower surfaces, each of the upper and lower surfaces comprising two raised portions and a central notch; the two raised portions adjoin two opposing side peripheral side surfaces, and extend along the entire length of the two opposing side peripheral side surfaces, and the upper surface comprises concave or convex surfaces curved along the two opposing side peripheral side surfaces; and the central notch is formed as a flat plane between the two raised portions.
The central notch may be depressed stepwisely from the raised portions.
A cutter mountable with the insert according to the present disclosure has an insert pocket comprising two side walls for supporting the peripheral side surfaces of the insert and one bottom wall that supports the lower surface of the insert, wherein the bottom wall has a protruded contact portion in the form of a flat plane corresponding to the central notch of the insert and depressed receiving portions for receiving the raised portions of the insert.
The inserts according to the present invention are ground such that there is less removed volume during grinding and thus raw material can be saved, and the grinding burden is much reduced compared with conventional inserts. The inserts according to the present invention have a lower surface having the same structure as the upper surface and thus allows four cutting edges of the same shape. Therefore, the service life can be extended compared to that of conventional inserts.
The cutter pocket according to the present invention provides a sufficient support force in a radial direction by surface contact with the insert, and at the same time, can mount inserts with cutting edges of various curvatures.
FIGs. 1 and 2 are perspective views depicting situations where cutters mounted with various kinds of inserts are machining rails.
FIG. 3 is a perspective view showing a conventional blank insert and inserts ground from it.
FIG. 4 is a perspective view showing a blank insert of an embodiment according to an example of the present invention.
FIG. 5 is a perspective view showing inserts ground from the blank insert according to an example of the present invention.
FIG. 6 is a perspective view showing the ground portions of inserts according to an example of the present invention.
FIG. 7 is a perspective view showing states where various shapes of inserts are mountable to the cutter pocket according to an example of the present invention.
Hereinafter, blank inserts, inserts machined from the blank inserts, and cutters mounted with the inserts according to example embodiments of the present disclosure are described. The figures attached to the present disclosure are for the convenience of explanation and the shapes and the relative scales may be exaggerated or abridged.
FIG. 4 shows a blank insert of an embodiment according to the present invention. The blank insert 10 comprises upper and lower surfaces 100, 200 joined by peripheral side surfaces 310, 320, 330, 340, and is provided with a through-hole 400 extending between the upper and lower surfaces. Each of the upper and lower surfaces 100, 200 comprises two raised portions 110, 120 and a central notch 130. The two raised portions have a flat upper surface, are formed adjoining two opposing side peripheral side surfaces 310, 330, and extend along the entire length of the two opposing side peripheral side surfaces 310, 330. The central notch 130 is a flat plane between the two raised portions, is formed by undercutting, and thus is depressed stepwisely from the raised portions. Although not clearly shown in FIG. 4, the lower surface has an identical structure to that of the upper surface. The central notch of the lower surface may extend either in a parallel or perpendicular direction to that of the upper surface.
These blank inserts are generally manufactured by mold press forming, and then provided for grinding inserts of various shapes as explained hereinafter. FIG. 5 shows the blank insert before grinding, and examples of (a) a convex insert and (b) a concave insert obtained after grinding on the blank insert is finished. These ground inserts have the same structure as the blank insert except for the ground portions (thickly painted portions in FIG. 6). In other words, the two raised portions adjoin two opposing side peripheral side surfaces, and extend along the entire length of the two opposing side peripheral side surfaces, and the upper surface comprises concave or convex surfaces curved along the two opposing side peripheral side surfaces, and thus provides cutting edges having a concave or convex curvature. Similarly to the blank insert, the lower surface of these inserts has an identical structure to that of the upper surface. However, the central notch of the lower surface may extend either in a parallel or perpendicular direction to that of the upper surface.
Since the inserts according to the present invention are ground only on the raised portions, the volume removed during grinding is reduced and thus raw material can be saved, and the grinding burden is much reduced compared with the conventional inserts shown in FIG. 3. While the lower surface of the conventional insert is a flat surface and is provided with only two cutting edges, the lower surface of the inserts according to the present invention has the same structure as the upper structure, and thus provides four cutting edges of the same shape. Therefore, the durability of the inserts according to the present invention can be doubled compared to that of the conventional inserts.
On the other hand, although the lower surface of the insert according to the present invention has raised portions of curved surfaces having various curvatures, since it has the flat central notch, it is possible to mount inserts of various shapes by forming the cutter pocket 690 as shown in FIG. 7. In other words, the cutter insert pocket of the present invention comprises two side walls 640, 650 for supporting the peripheral side surfaces of the insert and one bottom wall 610-630 to support the lower surface of the insert, but the bottom wall has a protruded contact portion in the form of a flat plane corresponding to the central notch and depressed receiving portions 610,620 for receiving the raised portions of the insert. The central notch of the insert and the protruded contact portion 630 of the cutter pocket are both flat and are in surface contact with each other, providing a support force in a radial direction. However, the receiving portions 610,620 of the cutter pocket receive the raised portions of the insert, but are furnished with a sufficiently depressed space so as not to touch the cutting edges of the insert, so that it can receive raised portions of various shapes.
The disclosed blank inserts, inserts machined from the blank inserts, and cutters mounted with the inserts may have various other embodiments without departing from the basic concept of the present disclosure. Accordingly, all the disclosed embodiments must be understood as being exemplary only and must not be construed to be the limit of the present disclosure. Accordingly, the range of protection for the present disclosure must be determined not by an embodiment described hereinabove, but by the attached claims. An alternative that is equivalent to the attached claims is included in the range of protection of the attached claims.

Claims (5)

  1. A blank insert, comprising upper and lower surfaces joined by peripheral side surfaces provided with a through-hole extending between the upper and lower surfaces, wherein
    each of the upper and lower surfaces comprises two raised portions and a central notch;
    the two raised portions have a flat upper surface, adjoin two opposing side peripheral side surfaces, and extend along the entire length of the two opposing side peripheral side surfaces; and
    the central notch is formed as a flat plane between the two raised portions.
  2. The blank insert according to claim 1, wherein the central notch is depressed stepwisely from the raised portions.
  3. An insert, comprising upper and lower surfaces joined by peripheral side surfaces provided with a through-hole extending between the upper and lower surfaces, wherein
    each of the upper and lower surfaces comprises two raised portions and a central notch;
    the two raised portions adjoin two opposing side peripheral side surfaces, and extend along the entire length of the two opposing side peripheral side surfaces, and the upper surface comprises concave or convex surfaces curved along the two opposing side peripheral side surfaces; and
    the central notch is formed as a flat plane between the two raised portions.
  4. The insert according to claim 3, wherein the central notch is depressed stepwisely from the raised portions.
  5. A cutter mountable with the insert according to claim 3 or 4, the insert pocket of which comprises two side walls for supporting the peripheral side surfaces of the insert and one bottom wall supporting the lower surface of the insert,
    wherein the bottom wall has a protruded contact portion in the form of a flat plane corresponding to the central notch of the insert and depressed receiving portions for receiving the raised portions of the insert.
PCT/KR2009/006561 2008-11-17 2009-11-10 Blank insert, and insert and cutter utilizing the same WO2010056021A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP09826253A EP2358493A4 (en) 2008-11-17 2009-11-10 Blank insert, and insert and cutter utilizing the same
CN2009801448671A CN102209601A (en) 2008-11-17 2009-11-10 Blank insert, and insert and cutter utilizing the same
BRPI0921012A BRPI0921012A2 (en) 2008-11-17 2009-11-10 insert and cutter that can be mounted with the insert.
JP2011534409A JP2012506780A (en) 2008-11-17 2009-11-10 Blank insert and insert and cutter using the same
ZA2011/03257A ZA201103257B (en) 2008-11-17 2011-05-05 Blank insert,and insert and cutter utilizing the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2008-0114226 2008-11-17
KR1020080114226A KR101017105B1 (en) 2008-11-17 2008-11-17 Insert and Cutter Utilizing the Same

Publications (2)

Publication Number Publication Date
WO2010056021A2 true WO2010056021A2 (en) 2010-05-20
WO2010056021A3 WO2010056021A3 (en) 2010-08-05

Family

ID=42170505

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/006561 WO2010056021A2 (en) 2008-11-17 2009-11-10 Blank insert, and insert and cutter utilizing the same

Country Status (7)

Country Link
EP (1) EP2358493A4 (en)
JP (2) JP2012506780A (en)
KR (1) KR101017105B1 (en)
CN (1) CN102209601A (en)
BR (1) BRPI0921012A2 (en)
WO (1) WO2010056021A2 (en)
ZA (1) ZA201103257B (en)

Cited By (7)

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WO2014051327A1 (en) * 2012-09-27 2014-04-03 Taegutec Ltd. Blank insert, cutting insert using the same and cutter including cutting insert
US20150330034A1 (en) * 2014-05-19 2015-11-19 Schweerbau Gmbh & Co. Kg Movable fixture for milling rail heads and procedure for replacing cutting plates for such a fixture
EP2988897A1 (en) * 2013-04-26 2016-03-02 Sumitomo Electric Hardmetal Corp. Indexable cutting insert, cutting insert holder, cutting tool, turning device and turning method
EP2939780A4 (en) * 2012-12-27 2016-08-31 Tungaloy Corp Cutting insert and rotary cutting tool with replaceable blade edge
WO2017032781A1 (en) * 2015-08-25 2017-03-02 Komet Group Gmbh Machine tool, in particular reaming tool for the fine machining of bores
EP3406378A1 (en) * 2017-05-23 2018-11-28 Walter Ag Cutting insert and milling tool
EP3026179B1 (en) * 2012-01-19 2020-03-11 Loram Maintenance Of Way, Inc. A device for milling of railroad track

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KR101380884B1 (en) * 2012-06-14 2014-04-02 한국야금 주식회사 cutting insert
DE102012108751A1 (en) * 2012-09-18 2014-03-20 Hartmetall-Werkzeugfabrik Paul Horn Gmbh Cutting insert and tool for machining a workpiece
JP2017064869A (en) * 2015-10-01 2017-04-06 京セラ株式会社 Cutting insert, cutting tool and manufacturing method for work-piece to be cut using the same
WO2024002527A1 (en) * 2022-06-28 2024-01-04 Seco Tools Ab A cutting tool

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JPH0680514U (en) * 1992-10-22 1994-11-15 東芝タンガロイ株式会社 Throw-away tip and throw-away cutter
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DE10006381A1 (en) * 2000-02-12 2001-08-16 Sandvik Ab Cutting insert for metal cutting, especially to mill camshaft; has at least one cutting edge, which is formed section of cutting face with free surface and is not perpendicular to cutting direction
DE10218630A1 (en) 2002-04-25 2003-11-06 Sandvik Ab Milling cutter with fine adjustment
US7229236B2 (en) * 2005-06-13 2007-06-12 Kennametal Inc. Helical cutting insert with progressive cutting edge
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IL182100A (en) 2007-03-21 2010-11-30 Taegutec India Ltd Cutting insert for a milling cutter

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3026179B1 (en) * 2012-01-19 2020-03-11 Loram Maintenance Of Way, Inc. A device for milling of railroad track
WO2014051327A1 (en) * 2012-09-27 2014-04-03 Taegutec Ltd. Blank insert, cutting insert using the same and cutter including cutting insert
EP2939780A4 (en) * 2012-12-27 2016-08-31 Tungaloy Corp Cutting insert and rotary cutting tool with replaceable blade edge
EP2988897A1 (en) * 2013-04-26 2016-03-02 Sumitomo Electric Hardmetal Corp. Indexable cutting insert, cutting insert holder, cutting tool, turning device and turning method
EP2988897B1 (en) * 2013-04-26 2023-02-22 Sumitomo Electric Hardmetal Corp. Indexable cutting insert, cutting insert holder, cutting tool, turning device and turning method
US20150330034A1 (en) * 2014-05-19 2015-11-19 Schweerbau Gmbh & Co. Kg Movable fixture for milling rail heads and procedure for replacing cutting plates for such a fixture
US9926670B2 (en) * 2014-05-19 2018-03-27 Schweerbau Gmbh & Co. Kg Movable fixture for milling rail heads and procedure for replacing cutting plates for such a fixture
CN108290236A (en) * 2015-08-25 2018-07-17 彗星集团有限公司 Toolroom machine, particularly the hinge that retrofit is carried out for device to hole expand tool
CN108290236B (en) * 2015-08-25 2019-06-14 彗星集团有限公司 Toolroom machine, particularly the hinge for carrying out retrofit for device to hole expand tool
US10543544B2 (en) 2015-08-25 2020-01-28 Komet Group Gmbh Tool for fine machining of bores
WO2017032781A1 (en) * 2015-08-25 2017-03-02 Komet Group Gmbh Machine tool, in particular reaming tool for the fine machining of bores
WO2018215200A1 (en) * 2017-05-23 2018-11-29 Walter Ag Cutting insert and milling tool
CN110650814A (en) * 2017-05-23 2020-01-03 瓦尔特公开股份有限公司 Cutting insert and milling tool
EP3406378A1 (en) * 2017-05-23 2018-11-28 Walter Ag Cutting insert and milling tool

Also Published As

Publication number Publication date
JP2015027732A (en) 2015-02-12
KR20100055246A (en) 2010-05-26
JP2012506780A (en) 2012-03-22
ZA201103257B (en) 2012-01-25
CN102209601A (en) 2011-10-05
WO2010056021A3 (en) 2010-08-05
EP2358493A2 (en) 2011-08-24
EP2358493A4 (en) 2012-08-22
BRPI0921012A2 (en) 2018-10-16
KR101017105B1 (en) 2011-02-25

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