WO2010034410A1 - Outil d'usinage par enlèvement de copeaux - Google Patents

Outil d'usinage par enlèvement de copeaux Download PDF

Info

Publication number
WO2010034410A1
WO2010034410A1 PCT/EP2009/006562 EP2009006562W WO2010034410A1 WO 2010034410 A1 WO2010034410 A1 WO 2010034410A1 EP 2009006562 W EP2009006562 W EP 2009006562W WO 2010034410 A1 WO2010034410 A1 WO 2010034410A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
region
hard material
tough
hard
Prior art date
Application number
PCT/EP2009/006562
Other languages
German (de)
English (en)
Inventor
Dieter Kress
Original Assignee
MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG
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
Priority claimed from DE102008052743A external-priority patent/DE102008052743A1/de
Application filed by MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG filed Critical MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG
Publication of WO2010034410A1 publication Critical patent/WO2010034410A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/06—Drills with lubricating or cooling equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/10—Bits for countersinking
    • B23B51/108—Bits for countersinking having a centering drill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
    • B23B2222/28—Details of hard metal, i.e. cemented carbide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2226/00—Materials of tools or workpieces not comprising a metal
    • B23B2226/12—Boron nitride
    • B23B2226/125—Boron nitride cubic [CBN]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2226/00—Materials of tools or workpieces not comprising a metal
    • B23B2226/31—Diamond
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2226/00—Materials of tools or workpieces not comprising a metal
    • B23B2226/31—Diamond
    • B23B2226/315—Diamond polycrystalline [PCD]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/02—Connections between shanks and removable cutting heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/14—Configuration of the cutting part, i.e. the main cutting edges

Definitions

  • the invention relates to a tool for machining workpieces according to the preamble of claim 1.
  • Tools of the type mentioned are known. With such tools, it is often necessary to form the blades from a hard material. In particular, if - as for example with drills - the cutting edges are arranged on one end face of the tool, this results in the problem that for a tool with a larger diameter much more of the hard material is required than for a tool with a smaller diameter , Since hard materials are very expensive, it is desirable to reduce the amount used to a minimum, without compromising the properties of the tool.
  • a tool in particular a drill, which - viewed along a direction which is perpendicular to a central axis of the tool - has a layer structure, wherein three layers are present, of which the outer two tough material while having the inner hard material.
  • a tool cutting can be introduced, which are preferably formed completely in the hard material. If the diameter of the tool is increased, the required amount of hard material will not increase in the same way as if a complete frontal area of the tool were made entirely of hard material.
  • a disadvantage of such an embodiment is that, for example, in a drill due to the limited thickness of the inner layer of the spiral angle for the flutes can be selected only in a narrow range, if they should extend at least in one of the cutting edge facing area in the hard material. It is therefore desirable to find another solution which, on the one hand, makes it possible to reduce the amount of hard material used but, on the other hand, neither limits the quality of the tool nor is it subject to any restrictions, for example with regard to the spiral angle of the flutes.
  • the object of the invention is therefore to use the just described knowledge to create a tool in which almost any diameter can be realized while a minimum of hard material is used, with no restrictions, for example, with respect to the spiral angle of the flutes occur.
  • the object is achieved by a tool with the features of claim 1.
  • the tool is characterized in that it has along its axial extent at least three areas, wherein at least three adjacent areas alternately comprise tough and hard material.
  • more than two regions are provided which comprise different materials.
  • the various areas are not arranged along a direction perpendicular to a center axis of the tool, but the areas are arranged along the axial extent of the tool.
  • at least three regions are provided, of which at least three adjacent regions each comprise hard or tough material alternately.
  • a particularly preferred tool is characterized in that at least a part of the at least one geometrically defined th cutting edge is formed of hard material.
  • the end face of the tool may be formed such that an outer portion of the at least one geometrically defined one Cutting edge is formed of hard material, while an inner part is formed of tough material. Since in the machining of a workpiece on the inner part due to the lower cutting speed substantially compressive forces act, it is advantageous to form this range of tough material, which is more likely to absorb these compressive forces, as the brittle, hard material. In the outer area, however, where high cutting speeds prevail, the cutting edge can be formed in hard material, so that here a high wear resistance is given.
  • a tool which is characterized in that at least one region which comprises hard material also comprises tough material.
  • at least one region which comprises hard material also comprises tough material.
  • an area addressed which has only partially hard material, while he has partially tough material.
  • the area toward the peripheral surface of the tool may include hard material while an inner portion of the area is made of tough material.
  • this area is spaced from the end face of the tool, so that at least one further area adjoins the end face along the axial extent.
  • a tool in which comprises in at least one area of both hard and tough material, the hard material, the tough material in the form of a Ringes surrounds.
  • an outer ring of the region consists of the hard material, while the - preferably cylindrically shaped - interior of this region is formed of tough material.
  • a tool having at least five regions, with at least three adjacent regions alternately comprising tough and hard material.
  • a layer structure may be provided here in which firstly a middle layer comprising hard material is embedded between two layers comprising tough material, while another layer of hard material adjoins one of the two outer layers which in turn is followed by a layer of tough material.
  • a tool that is characterized by a radial step along its axial extent, wherein at least one geometrically defined cutting edge is formed in the region of the step.
  • a tool can for example be used to bring counterbores in a workpiece.
  • a tool is also preferred, which is characterized in that in the region of the step an area is arranged which comprises hard material, wherein the at least one cutting edge is at least partially in the hard material. is forming.
  • the tool can also benefit in the area of the stage from the advantages that have been explained in connection with the layer structure or the different areas.
  • a tool that is characterized by at least one coolant and / or lubricant channel, which passes through the tool substantially along its axial extent.
  • coolants and / or lubricants into the area of the at least one cutting edge, and not only to efficiently cool and lubricate the tool and the workpiece, but also to remove chips from the area of machining during machining to remove at least one cutting edge.
  • the hard material comprises PCD and / or PKB and / or CVD diamond. Due to their high hardness, these materials are particularly resistant to wear and suitable for forming a cutting edge in a region in which high cutting speeds occur.
  • the hard material may preferably also consist of the materials mentioned.
  • the tough material comprises carbide. Due to its significantly higher toughness in comparison to the previously mentioned hard materials, carbide is above all suitable for an area in which lower cutting speeds and therefore higher pressure forces occur.
  • the tough material may also consist of hard metal.
  • Figure 1 is a side view of an embodiment of the
  • Figure 2 is a perspective view of the tool of FIG.
  • Figure 3 is a side view of another embodiment of the tool, which is exemplified as a stepped drill.
  • Figure 1 shows a first embodiment of a tool 1, which is exemplified as a drill.
  • the tool 1 has a central axis M, which is indicated in the left region of the figure. It also has a first part 3, which is designed here as a shaft and serves for coupling to a machine tool. In addition, it comprises a second part 5, which is suitable for the actual machining of a workpiece.
  • the tool 1 is subdivided into a plurality of regions at least in the second part 5 along its axial extent. At its end facing a workpiece, it initially has a first region 7, to which a second region 9 adjoins. In turn, this is followed by a third region 1 1 connects. Depending on the configuration or length of the tool, further regions may adjoin the third region 11, in which case a fourth region 13 can be seen in particular. At least three adjacent regions of the tool 1 have alternately tough and hard material.
  • the first region 7 may comprise tough material while the second region 9 comprises hard material.
  • the third region 11 may in turn comprise tough material.
  • the tough material may comprise hard metal, preferably it may be made of hard metal.
  • the hard material may comprise PCD and / or PKB and / or CVD diamond, preferably consist of these materials or of one of these materials.
  • the areas 7, 9, 11 may optionally consist of hard or tough material.
  • One area may also include one type of material, while another area may consist entirely of one type of material.
  • a fourth region 13 which adjoins a third region 11, then this fourth region 13 can be formed of the same material as the third region 11.
  • the fourth region is therefore made of tough material
  • a fourth region 13 can then be provided if the tool 1 is to have a certain length.
  • the various regions 7, 9, 11, 13 may be formed by sintering, and an upper limit may exist for the length of the sintered material. If the tool 1 is therefore to have a length which exceeds this length predetermined by the sintering process, a plurality of individually sintered regions must be arranged one after the other and connected to one another in a suitable manner.
  • the individually sintered and successively arranged areas can for example be soldered or glued together.
  • the third area 11 is not necessary to connect a fourth area 13.
  • a virtually arbitrary number of further regions can join the fourth region 13 if the tool is to have a corresponding length.
  • the first part 3 of the tool 1 is likewise formed from a sintered material, different regions may adjoin one another here as well, which would be characterized by vertical lines. It is therefore to be noted that, on the one hand, the vertical line which separates the third area 11 from the fourth area 13 may possibly be omitted, while conversely further vertical lines, in particular in the first part 3 of the tool 1, may be added depending on its configuration.
  • the regions 7, 9 and 11 in a common sintering process, wherein this sintered product is subsequently connected, for example soldered or glued, to a fourth region 13 in a suitable manner.
  • this sintered product is subsequently connected, for example soldered or glued, to a fourth region 13 in a suitable manner.
  • FIG. 2 shows a perspective view of the embodiment of a tool 1 according to Figure 1.
  • the same and functionally identical elements are provided with the same reference numerals, so reference is made in this respect to the preceding description.
  • the tool 1 has at least one geometrically defined cutting edge 15, which is formed on an end face 17 of the tool 1.
  • the tool 1 has two geomet- Risch defined cutting 15 on, of which only one is recognizable.
  • two flutes 21, 23 are introduced, which are formed here by way of example spirally.
  • the flutes can also run straight or along another curve.
  • only one geometrically defined cutting edge 15 is provided
  • optionally only one flute 21 is introduced into the outer peripheral surface 19 of the tool 1.
  • chip flutes can be completely dispensed with.
  • the cutting edge 15 extends both in the first region 7 and in the second region 9.
  • a portion of the cutting edge 15 is thus formed of hard material, while another part is formed of tough material.
  • the cutting edge 15 just in this part comprises hard material.
  • a part of the cutting edge 15 arranged closer to the central axis M is formed in the first region 7, so that this part comprises tough material.
  • this part of the cutting edge 15 comprises a material that can absorb high compressive forces.
  • this part is formed in tough material.
  • the second region 9 can be made entirely of hard material. However, it is quite possible to design the second region 9 in such a way that, for example, it comprises hard material in a part facing the circumferential surface 19, while a core of this region 9 arranged in the region of the central axis M comprises tough material. Such an embodiment has the advantage, in particular with tools 1 having a large diameter, that hard material can be saved.
  • the second region 9 is formed to include both hard material and tough material.
  • the hard material can embrace the tough material in the form of a ring.
  • the second area 9 in this case consists of an outer ring comprising hard material, while concentrically arranged in this outer ring is an inner cylinder comprising tough material.
  • the cutting edge 15 it is possible to arrange the cutting edge 15 so that it is at least partially formed of hard material. Since the region 9 has an outer ring of hard material, then an outer part of the cutting edge 15 is formed of hard material, so a part on which high cutting speeds occur.
  • the cutting edge 15 it is also possible to arrange the cutting edge 15 completely in a region comprising hard or tough material.
  • a cutting edge which has both hard and tough material.
  • a Cutting edge 15 is preferred, in which an inner part of tough material is formed, while an outer part is formed in hard material.
  • the individual regions 7, 9 and 11 each consist of tough or hard material, they are discreetly delimited from one another.
  • the area boundaries are therefore formed by places where discontinuities in the physical properties of the material covered by the areas occur.
  • the second region 9 comprises an outer ring of hard material and an inner ring of tough material, such discrete demarcation is only partially present.
  • Through the second region 9 extends a core of tough material, which virtually connects the regions 7 and 11 with respect to the toughness as a physical property.
  • the physical properties of the material in the region of the peripheral surface 19 of the tool 1 can be used for differentiation. Namely, if the area boundaries between the areas 7, 9 and 11 are exceeded on the peripheral surface 19 along the axial extent of the tool, it will be noted in this embodiment, a discontinuous change in the physical properties of the material, which is covered by the various areas. If two areas of the same material are adjacent to each other, such as the third area 11 and the fourth area 13, there is a connection at this point, which also leads to a discontinuity in the physical properties. characteristics.
  • a soldering or splice may be arranged. This implies, at the very least, that there is another material at this point, which causes the two areas to connect with each other. In this respect, it is also possible to speak of a physical discontinuity, so that this concept is suitable for defining the domain concept.
  • openings 25 can be seen, in which opens at least one coolant and / or lubricant channel.
  • each opening 25 is associated with a cooling and / or lubricant channel.
  • only one opening 25 can be provided with a coolant and / or lubricant channel, but it can also be provided a plurality of openings 25, in which optionally one or more - preferably an equal number - open cooling and / or lubricant channels.
  • the at least one coolant and / or lubricant channel passes through the tool 1 substantially along its axial extent. It serves to guide coolant and / or lubricant from the machine tool through the tool 1 to the end face 17, where it can immediately cool and lubricate the machined area of a workpiece as well as the tool 1. At the same time, the coolant and / or lubricant serves to discharge the chips produced during the machining of the workpiece from the cutting area. This is especially true when the coolant and / or lubricant is supplied under high pressure.
  • Figure 3 shows another embodiment of a tool 1, which is designed as a stepped drill. Identical and functionally identical elements are provided with the same reference symbols, so that Please refer to the previous description.
  • the fourth region 13 is adjoined by a fifth region 27, to which in turn is connected a sixth region 29.
  • the fifth region 27 comprises hard material
  • the sixth region 29 comprises tough material.
  • a single region may be provided which comprises tough material.
  • the area 27 is a fourth area while the area 29 is a fifth area.
  • the tool then has five areas along its axial extent, with at least three adjacent areas alternately comprising tough and hard material.
  • the regions 7 and 11 comprise tough material, while the interposed region 9 comprises hard material. Furthermore, the regions 13 and 29 comprise tough material, while the region 27 comprises hard material. Even if, instead of the separate regions 11 and 13, a single region was provided which comprises tough material, in each case three adjacent ones of the five regions formed in this case would alternately comprise tough and hard material. Thus, the region 7 would comprise tough material, the region 9 hard material and the adjoining middle region again tough material. Here, the count would have to start anew, so that for the second adjacent three areas, this middle area comprising tough material would be the first area followed by the area 27 comprising hard material followed by a third area 29, the tough material includes. As already explained, it depends only on the desired length of the tool 1, whether between the areas 9 and 27, an area, two areas 11 and 13 or even several areas are provided which comprise tough material.
  • a region is provided on the workpiece-facing end of the tool 1, comprising tough material.
  • also tough material is provided.
  • This arrangement requires that in the event that always alternate along the axial extent of the tool areas hard and tough material with each other, an odd number of areas is realized. An even number of areas is thus achieved when adjacent to each other along the axial extent of the tool 1 areas comprising the same material. Since, in the exemplary embodiment shown in FIG. 3, the third region 11 and the fourth region 13 are each formed of tough material, a total of six regions result along the axial extent of the tool 1. If, instead, the two regions 11 and 13 are obtained a single area of tough material would provide five areas.
  • the first part 3 of the tool 1, which forms a shank for receiving it in a machine tool may be formed of several regions because its length exceeds the length which can be produced in a sintering process. In this case, of course, results in a larger number of areas.
  • a geometrically defined cutting edge is formed in the region of the step.
  • a step 31 is provided in the fifth region 27. educated.
  • a throat 33 is introduced into the outer peripheral surface 19 of the tool 1.
  • a boundary line of this throat 33 forms a geometric cutting edge 35, while the interior of the throat 33 serves as a chip space.
  • the cutting edge 35 is offset radially outward relative to the cutting edge 15 and serves, for example, to raise a bore introduced into a workpiece in its upper region.
  • two or more cutting edges preferably formed by corresponding grooves, can be provided in the region of the step 31 along the circumference of the tool 1.
  • the cutting edge 35 is here completely formed in the hard material of the region 27. It is also possible to arrange the step 31 at a transition between two regions, one of which comprises one hard and the other tough material. In this way, the throat 33 as well as the cutting edge 35 can comprise hard and tough material, whereby here too it preferably comprises hard material in its outer region and viscous material in its inner region. However, since the cutting speed in the outwardly projecting peripheral portion of the step 31 and the cutting edge 35 is higher as compared with the cutting speed of the cutting edge 15, the cutting edge 35 is preferably formed entirely in hard material.
  • the region 27 may comprise both hard material and tough material.
  • the hard material in the part facing the outer peripheral surface 19 of the tool 1, it comprises hard material while it in a part of the center axis M facing tough material comprises.
  • the hard material surrounds the tough material in the form of a ring.
  • a ring of hard material is formed, which concentrically surrounds a cylinder of tough material.
  • the various parts or regions can be sintered together or, after the sintering of the individual parts or regions, connected to one another in a suitable manner, for example, soldered or glued.
  • At least one opening for coolant and / or lubricant in the region of the at least one cutting edge 35, which is fed by at least one coolant and / or lubricant channel.
  • the present invention advantageously makes use of the knowledge that - seen in the radial direction - different regions of a tool 1 have different cutting speeds and are therefore subject to different stresses. It is therefore possible to form these regions from different materials. For this purpose, an arrangement of different areas along the axial extent of the tool is advisable, with areas of tough and hard material alternating with each other. So it is possible to produce tools with a large diameter, without causing an uneconomically large amount of expensive hard Ma terials would have to be used. At the same time, no compromise has to be made regarding the quality of the tool 1. Also, there are no restrictions on a helix angle of any flutes present in the tool. According to the invention, it is also possible to provide step tools in which in each case only the regions comprise hard material in which a high cutting speed occurs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Abstract

L'invention concerne un outil (1) destiné à l'usinage par enlèvement de copeaux de pièces à usiner comprenant au moins un tranchant (15) géométriquement défini et un axe central (M). L'invention est caractérisée en ce que l'outil (1) comprend au moins trois zones (7, 9, 11; 13, 27, 29) le long de son étendue axiale, au moins trois zones voisines (7, 9, 11; 13, 27, 29) présentant en alternance un matériau tendre et un matériau dur.
PCT/EP2009/006562 2008-09-25 2009-09-10 Outil d'usinage par enlèvement de copeaux WO2010034410A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102008050898.5 2008-09-25
DE102008050898 2008-09-25
DE102008052743.2 2008-10-22
DE102008052743A DE102008052743A1 (de) 2008-10-22 2008-10-22 Werkzeug zur spanenden Bearbeitung

Publications (1)

Publication Number Publication Date
WO2010034410A1 true WO2010034410A1 (fr) 2010-04-01

Family

ID=41360289

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/006562 WO2010034410A1 (fr) 2008-09-25 2009-09-10 Outil d'usinage par enlèvement de copeaux

Country Status (1)

Country Link
WO (1) WO2010034410A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102303151A (zh) * 2011-07-28 2012-01-04 锑玛(苏州)精密工具有限公司 一种强力钻头
GB2491956A (en) * 2011-06-13 2012-12-19 Element Six Ltd Twist drill tip and a method of manufacture using a precursor construction
US20150298220A1 (en) * 2014-04-17 2015-10-22 Kennametal Inc. Rotating tool, in particular drill, as well as a method for manufacturing a rotating tool of this type
CN106133344A (zh) * 2014-03-12 2016-11-16 伊卓特有限两合公司 具有冲挤连接部的双钢螺栓及用于制造该螺栓的方法
EP3385014A1 (fr) * 2017-04-03 2018-10-10 Jakob Lach GmbH & Co. KG Procédé de fabrication d'un outil de coupe par usinage par enlèvement de copeaux des pièces à usiner ainsi qu'outil de coupe
US10594233B2 (en) 2013-12-25 2020-03-17 Mitsuba Corporation Brushless motor, wiper apparatus, motor apparatus and control method for motor apparatus
US11229957B2 (en) 2018-10-02 2022-01-25 Jakob Lach Gmbh & Co. Kg Method for producing a cutting tool for the machining of workpieces and cutting tool
DE102022211370A1 (de) 2022-10-26 2024-05-02 Kennametal Inc. Bohrkopf und Verfahren zur Herstellung eines solchen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5443337A (en) * 1993-07-02 1995-08-22 Katayama; Ichiro Sintered diamond drill bits and method of making
JP2000043006A (ja) * 1998-07-31 2000-02-15 Kanefusa Corp 回転切削工具
WO2004037472A1 (fr) * 2002-10-22 2004-05-06 Alenia Aeronautica S.P.A Outils a percer ameliores pour materiaux composites
US20080080938A1 (en) * 2006-09-29 2008-04-03 Denso Corporation Cutting tool and manufacture method for the same
US7575401B1 (en) * 2004-11-18 2009-08-18 Precorp, Inc. PCD drill for composite materials

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5443337A (en) * 1993-07-02 1995-08-22 Katayama; Ichiro Sintered diamond drill bits and method of making
JP2000043006A (ja) * 1998-07-31 2000-02-15 Kanefusa Corp 回転切削工具
WO2004037472A1 (fr) * 2002-10-22 2004-05-06 Alenia Aeronautica S.P.A Outils a percer ameliores pour materiaux composites
US7575401B1 (en) * 2004-11-18 2009-08-18 Precorp, Inc. PCD drill for composite materials
US20080080938A1 (en) * 2006-09-29 2008-04-03 Denso Corporation Cutting tool and manufacture method for the same

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9975185B2 (en) 2011-06-13 2018-05-22 Element Sux Abrasives S.A. Twist drill tips, precursor constructions for use in making same, and methods for making and using same
GB2491956A (en) * 2011-06-13 2012-12-19 Element Six Ltd Twist drill tip and a method of manufacture using a precursor construction
GB2491956B (en) * 2011-06-13 2015-08-12 Element Six Ltd Twist drill tips, precursor constructions for use in making same, and methods for making and using same
CN102303151A (zh) * 2011-07-28 2012-01-04 锑玛(苏州)精密工具有限公司 一种强力钻头
US10594233B2 (en) 2013-12-25 2020-03-17 Mitsuba Corporation Brushless motor, wiper apparatus, motor apparatus and control method for motor apparatus
CN106133344A (zh) * 2014-03-12 2016-11-16 伊卓特有限两合公司 具有冲挤连接部的双钢螺栓及用于制造该螺栓的方法
CN106133344B (zh) * 2014-03-12 2018-11-23 伊卓特有限两合公司 具有冲挤连接部的双钢螺栓及用于制造该螺栓的方法
US20150298220A1 (en) * 2014-04-17 2015-10-22 Kennametal Inc. Rotating tool, in particular drill, as well as a method for manufacturing a rotating tool of this type
US9724765B2 (en) * 2014-04-17 2017-08-08 Kennametal Inc. Rotating tool, in particular drill, as well as a method for manufacturing a rotating tool of this type
CN105014127B (zh) * 2014-04-17 2019-09-27 钴碳化钨硬质合金公司 旋转刀具特别是钻头以及制造这种类型的旋转刀具的方法
CN105014127A (zh) * 2014-04-17 2015-11-04 钴碳化钨硬质合金公司 旋转刀具特别是钻头以及制造这种类型的旋转刀具的方法
EP3385014A1 (fr) * 2017-04-03 2018-10-10 Jakob Lach GmbH & Co. KG Procédé de fabrication d'un outil de coupe par usinage par enlèvement de copeaux des pièces à usiner ainsi qu'outil de coupe
US11229957B2 (en) 2018-10-02 2022-01-25 Jakob Lach Gmbh & Co. Kg Method for producing a cutting tool for the machining of workpieces and cutting tool
DE102022211370A1 (de) 2022-10-26 2024-05-02 Kennametal Inc. Bohrkopf und Verfahren zur Herstellung eines solchen

Similar Documents

Publication Publication Date Title
EP0883455B1 (fr) Outil d'alesage pour machines-outils et son procede de production
EP2550126B1 (fr) Alésoir avec canaux de refroidissement
WO2010034410A1 (fr) Outil d'usinage par enlèvement de copeaux
DE102010006796B4 (de) Verfahren zur Herstellung eines Bohrers, sowie Bohrer
DE102014108219A1 (de) Rotationswerkzeug sowie Verfahren zur Herstellung eines Rotationswerkzeugs
DE112011102667T5 (de) Konturschaftfräser
EP2670550B9 (fr) Outil de forage et procede de fabrication de trous
DE102017206144B3 (de) Fräskopf für einen Kugelbahnfräser und Kugelbahnfräser mit einem solchen Fräskopf
EP2848342B1 (fr) Outil de fraisage complet pour l'usinage rotatif de matériaux
DE102014108513A1 (de) Rotationsschneidwerkzeug
DE102005038021A1 (de) Verfahren zur zerspanenden Bearbeitung von Kurbelwellen und Vorrichtung zur Durchführung dieses Verfahrens
WO2004056519A2 (fr) Geometrie de canal de refroidissement
WO2021121468A1 (fr) Foret hélicoïdal ayant une pointe de coupe munie d'une structure étagée
DE102008052743A1 (de) Werkzeug zur spanenden Bearbeitung
DE69308823T2 (de) Präzisionsspiralbohrer
WO2005030418A1 (fr) Foret
WO2008080748A1 (fr) Foret de forage de trous profonds doté d'une bague de soutien et procédé pour sa fabrication
EP3414038A1 (fr) Outil d'alésage
WO2017198265A1 (fr) Fraise à queue
EP3630400B1 (fr) Foret 3/4 et méthode de fabrication d'un foret 3/4
DE102016109130C5 (de) Schaftfräser
DE202017103022U1 (de) Schaftfräser
DE202013105739U1 (de) Miniaturfräser
DE202017103021U1 (de) Schaftfräser
DE202016102635U1 (de) Schaftfräser

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09778444

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 09778444

Country of ref document: EP

Kind code of ref document: A1