WO2003070408A1 - Rundlaufschneidwerkzeug mit auswechselbarem schneideinsatz - Google Patents

Rundlaufschneidwerkzeug mit auswechselbarem schneideinsatz Download PDF

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Publication number
WO2003070408A1
WO2003070408A1 PCT/EP2003/001526 EP0301526W WO03070408A1 WO 2003070408 A1 WO2003070408 A1 WO 2003070408A1 EP 0301526 W EP0301526 W EP 0301526W WO 03070408 A1 WO03070408 A1 WO 03070408A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
cutting insert
shank
rotary cutting
contact surface
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.)
Ceased
Application number
PCT/EP2003/001526
Other languages
German (de)
English (en)
French (fr)
Inventor
Bernhard Borschert
Dieter MÜHLFRIEDEL
Jürgen SCHWÄGERL
Filho Ruy Frota De Souza
Michael D. Shulz
Michael R Mccomick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kennametal Inc
Original Assignee
Kennametal Inc
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 to BRPI0307798-5A priority Critical patent/BR0307798B1/pt
Priority to CA2484602A priority patent/CA2484602C/en
Priority to MXPA04008179A priority patent/MXPA04008179A/es
Priority to JP2003569355A priority patent/JP4397235B2/ja
Priority to EP03742523A priority patent/EP1476269B1/de
Priority to DE50312051T priority patent/DE50312051D1/de
Priority to KR1020047013004A priority patent/KR100957953B1/ko
Priority to AU2003210281A priority patent/AU2003210281A1/en
Priority to AT03742523T priority patent/ATE446154T1/de
Application filed by Kennametal Inc filed Critical Kennametal Inc
Publication of WO2003070408A1 publication Critical patent/WO2003070408A1/de
Priority to US10/921,781 priority patent/US7360974B2/en
Anticipated expiration legal-status Critical
Priority to US12/047,904 priority patent/US7832967B2/en
Priority to US12/847,216 priority patent/US8366358B2/en
Priority to US13/756,990 priority patent/US8807888B2/en
Ceased legal-status Critical Current

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
    • 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
    • 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
    • B23C5/109—Shank-type cutters, i.e. with an integral shaft with removable cutting inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D77/00—Reaming tools
    • B23D77/02—Reamers with inserted cutting edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D77/00—Reaming tools
    • B23D77/02—Reamers with inserted cutting edges
    • B23D77/025—Securing arrangements for cutting inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2205/00—Fixation of cutting inserts in holders
    • B23B2205/02—Fixation using an elastically deformable clamping member
    • 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
    • B23B2251/50—Drilling tools comprising cutting inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D2277/00—Reaming tools
    • B23D2277/02—Cutting head and shank made from two different components which are releasably or non-releasably attached to each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S408/00—Cutting by use of rotating axially moving tool
    • Y10S408/713—Tool having detachable cutting edge
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/892—Tool or Tool with support with work-engaging structure detachable from cutting edge
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/907—Tool or Tool with support including detailed shank
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/909—Having peripherally spaced cutting edges
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/909—Having peripherally spaced cutting edges
    • Y10T408/9095—Having peripherally spaced cutting edges with axially extending relief channel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/909—Having peripherally spaced cutting edges
    • Y10T408/9095—Having peripherally spaced cutting edges with axially extending relief channel
    • Y10T408/9097—Spiral channel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/909—Having peripherally spaced cutting edges
    • Y10T408/9098—Having peripherally spaced cutting edges with means to retain Tool to support

Definitions

  • the invention relates to a rotary cutting tool composed of a tool shank and an exchangeable cutting insert, in particular a drilling tool, according to the preamble of claim 1.
  • a drilling tool with a replaceable cutting insert is known, for example, from EP 0 118 806 B1.
  • This drilling tool has a tool shaft with a receptacle into which a fastening pin of the cutting insert can be inserted. When inserting the cutting insert, it is rotated by an angle of approx. 45 ° in relation to the tool shank. An additional fastening element is not provided.
  • the cutting insert and the tool body can be designed such that the narrow side of the cutting plate on the shank braces against the edge of the recess on the shank side in the tool shank.
  • An axial force between the tool shank and the cutting insert can be generated in that the shaft-side edge of the recess rises slightly in the direction of insertion, the fastening pin being secured against being pulled out of the tool shaft by means of a shaft-side widening.
  • the fastening pin arranged centrally on the cutting insert has contact surfaces which rise slightly spirally in the direction of drilling. Due to this slightly spiral formation of the contact surfaces of the fastening pin, which are in contact with correspondingly shaped contact surfaces of the receptacle of the tool shaft, an axial force is exerted on the cutting insert in the direction of the tool body. This axial force acts in full on the small compared to the drill diameter dimensioned and therefore mechanically resilient mounting pin. In addition, a torque is exerted on the fastening pin, which further limits the mechanical strength of the connection between the tool shank and the cutting insert.
  • the invention is based on the object of specifying a rotary cutting tool, in particular a drill, composed of a tool shaft and a cutting insert without further fastening means, which has a particularly stable and resilient connection between the tool shaft and the cutting insert.
  • a tool shank of a rotary cutting tool with exchangeable cutting insert on the tool circumference has a leg which is preferably inclined overall to the tool axis.
  • a correspondingly inclined contact surface of a wing of the cutting insert engages in this leg or guide tab.
  • the cutting insert only partially covers the tool shank at its shank tip.
  • the leg of the tool shank at the shank tip is not or only partially covered by the cutting insert.
  • the contact surface of the cutting insert can thus extend approximately over its entire height, with the exception of the fastening pin. In this way, a particularly large force and torque transmission between the cutting insert and the tool body is guaranteed.
  • the leg provided for torque transmission on the circumference of the tool body preferably extends almost over the entire height of the wing of the cutting insert, so that the wing projects only slightly beyond the leg at the shaft tip.
  • the diameter of the cutting body is preferably slightly larger than the tool shank diameter. This ensures in a simple manner that only the cutting insert processes the workpiece surface during machining.
  • the cutting insert When inserting into the tool shank, the cutting insert is first inserted into a receiving opening with the fastening pin and then rotated, comparable to a bayonet lock.
  • a guide shoulder is provided on both the tool shank and the cutting insert.
  • the axial force which pulls the cutting insert in the direction of the tool body depends on the contact angle which the contact surfaces of the cutting insert and the tool shank take in relation to the tool axis.
  • Both a sufficiently high axial force and a stable design of the leg of the tool shank and the wing of the cutting insert are preferably realized with a contact angle of at least 15 ° and at most 60 °, preferably 30 °.
  • the contact angle preferably corresponds to the twist angle of the flute.
  • the fastening pin and the corresponding receptacle of the tool shaft are preferably designed in such a way that the fastening pin braces when the cutting insert is screwed into the tool shaft.
  • the fastening pin can have an elliptical cross-section, while the receiving opening has a circular cross-section.
  • the elliptical design of the fastening pin has the advantage that only an outer contour, namely on the cutting insert, is to be formed elliptically during the manufacture of the tool, while an elliptical design of a bore is very technical in terms of production would be expensive, can be dispensed with.
  • the cutting insert can also have a pin with a conical shape.
  • the tapered receptacle of the tool shank can also have a circular cross-section that deviates slightly from the pin cross-section in a manner that is advantageous in terms of production technology.
  • the pin can taper conically downwards, i.e.
  • the cutting insert can be inserted and clamped in the tool shank without any problems, since the receiving opening of the tool shank is open at the flutes.
  • both the leg of the tool shank and the wing of the cutting insert each have, in addition to the contact surface, an additional contact surface that is opposite to the contact surface and inclined to the tool axis.
  • the additional contact surfaces preferably adjoin the contact surfaces, it being possible for a transition surface between these surfaces to be of small dimensions in relation to the contact surfaces and additional contact surfaces.
  • the additional contact surfaces are preferably inclined to the tool axis by an additional contact angle of -10 ° to -60 °. Prefers the additional contact surfaces are inclined at a smaller angle than the contact surfaces.
  • the additional contact surfaces While an axial force is generated by the contact surfaces, which pulls the cutting insert towards the tool shank, the additional contact surfaces cause an axial force in the opposite direction.
  • the so-called contact height based on the tool axis, over which the contact surface of the leg extends, is preferably greater than the so-called counter-contact height, over which the additional contact surface of the leg extends.
  • the different dimensions of the contact surfaces on the one hand and the additional contact surfaces on the other hand therefore have the same effect, namely the generation of a resulting attractive force between the tool shank and the cutting insert during operation of the tool, as does the differently inclined position of the different surfaces.
  • FIG. 1 shows a rotary cutting tool composed of a drill shank and a cutting insert
  • FIG. 2 shows the tool shaft of the rotary cutting tool according to FIG. 1,
  • FIG. 3 shows the cutting insert of the rotary cutting tool according to FIG. 1,
  • FIG. 5 shows in cross section the tool shaft with the fastening pin of the cutting insert tensioned
  • FIG. 6 shows a rotary cutting tool composed of a tool shaft and a cutting insert in an alternative embodiment
  • FIG. 7 shows the tool shaft of the rotary cutting tool according to FIG. 6,
  • FIG. 8 shows a detail of the tool shank according to FIG. 7,
  • FIG. 10 shows a detail of the cutting insert according to FIG. 9. Corresponding parts are provided with the same reference symbols in all figures.
  • FIGS. 1 to 3 show in perspective a cutting body or cutting insert 1 and a drill shank or tool shank 2 of a rotary cutting tool 3 designed as a drill.
  • a countersink, milling or reaming tool can also be constructed.
  • hard metal, cermet, ceramic and HSS, each coated or uncoated, come into consideration as materials for the cutting insert 1. It is possible to equip a cutting insert 1 with PCD or CBN.
  • the cutting insert 1 is, for example, either finished in a conventional manner by grinding or produced using the so-called “metal injecting molding” (MIM) method.
  • MIM metal injecting molding
  • the cutting body 1 can be inserted into the shaft tip 4 of the tool shaft 3 in this Use a key (not shown) for cutting insert 1 from drill shaft 2.
  • the direction of tool rotation is marked D
  • the tool or drill axis is marked A.
  • the drill shaft 2 which is preferably made of steel or hard metal, has two helical flutes 5 which differ from one another Not shown drill receptacle extend to the shank tip 4.
  • the drill shank 2 can also have a different number of straight or helical flutes 2.
  • Two recesses 6 on the shank 4 bordering the flutes 5 each have a perpendicular to the drill axis A. trending edge 7 and an abutment surface 8 that runs obliquely to the drill axis A.
  • the contact surface 8 delimits one leg 9 on the circumference of the drill shank 2.
  • a contact surface 10 of a wing 11 of the cutting insert 1 bears against the contact surface 8 of the leg 9.
  • the contact surfaces 8, 10 are inclined relative to the tool axis A in such a way that the cutting insert 1 is tightened on the drill shank 2 when the rotary cutting tool 3 rotates in the tool rotation direction D.
  • the inclination of the contact surfaces 8, 10 relative to the tool axis A corresponds to the helix angle of the flutes 5.
  • the blades 11 of the cutting insert 1 thus have a constant width B along the drill axis A over almost their entire height H.
  • the wings 11 of the cutting body 1 project slightly beyond the drill shaft 2 at the shaft tip 4.
  • the legs 9 are not covered at the shaft tip 4 by the cutting insert 1.
  • the cutting body diameter Ds of the cutting insert 1 is slightly larger than the tool shank diameter Dw.
  • the transition between the edge 7 of the drill shank 2 and the adjoining contact surface 8 of the leg 9 is rounded in order to avoid mechanical stress peaks.
  • the narrow side 12 of the cutting insert 1 rests on the edge 7.
  • this contact surface 8 is not available for positioning the cutting body 1.
  • a guide shoulder 13 is provided on the drill shaft 2 adjacent to the legs 9 and a corresponding guide shoulder 14 on the cutting insert 1.
  • a fastening pin 15 which is provided for receiving in a receiving opening 16 of the tool shank 2, borders on the guide shoulder 14 of the cutting insert 1.
  • the recess 6 arranged on the shank tip 4 and on the circumference of the drill, together with the receiving opening 16 adjoining it, forms a space for inserting the cutting body 1 including the fastening pin 15 into the tool shank 2.
  • the fastening pin 15 has a chamfer 17 through which the Insertion in the receiving opening 16 is facilitated.
  • the receiving opening 16 is arranged concentrically to the drill axis A and has a circular cross-section, the cross-section being able to vary along the drill axis A.
  • a cylindrical receiving opening 16 it can also be conical, in particular tapering downwards, that is to say away from the shaft tip 4.
  • a receptacle opening 16 that widens conically downwards provides a further safeguard against falling out or pulling out of the cutting insert 1 from the tool shank 2.
  • the receiving opening 16 is open towards the flutes 5, so that in any case an easy insertion of the cutting insert 1 into the tool shank 2 is made possible.
  • the cutting body 1 can be centered in a simple manner with each formation of the fastening pin 15 and the receiving opening 16.
  • FIGS. 4 and 5 show in cross section the tool shank 2 with the fastening pin 15 inserted into the receiving opening 16 in the released or clamped position.
  • the fastening pin 15 has one according to this preferred embodiment slightly elliptical cross section. Due to the elliptical cross section, the fastening pin 15 has some play when inserted into the receiving opening 16. By rotating the cutting insert 1 by approximately 45 °, the fastening pin 15 braces in the receiving opening 16. The fastening pin 15 is cut laterally in such a way that it adapts to the shape of the flutes 5 in the clamped state.
  • the fastening pin 15 and / or the receiving opening 16 can also have another cross section deviating from the circular shape, by means of which a tensioning of the fastening pin 15 in the receiving opening 16 of the drill shaft 2 can be achieved.
  • Such cross-sectional designs are known, for example, in a clamping device according to DE 199 45 097 A1 for the rotationally and thrust-resistant connection of a shaft to a hub.
  • the slightly elliptical design of the cross section of the fastening pin 15 can be realized both with a cylindrical basic shape of the fastening pin 15 and with a conical design of the receiving opening 16 and fastening pin 15.
  • a receptacle opening 16 that widens conically downward and at the same time has an elliptical cross section of the likewise conical fastening pin 15
  • an axial force arises when the fastening pin 15 is screwed into the receptacle opening 16, which pulls it into the receptacle opening 16 and thus supports the axial force, which is achieved by means of of the contact surfaces 8, 10 holds the cutting insert 1 on the tool shank 2.
  • FIG. 6 to 10 show as a rotary cutting tool a drill 3 or the tool shank 2 or the cutting insert 1 of the drill 3 in a preferred alternative embodiment.
  • the leg 9 of the tool shank 2 has an additional contact surface 8a in addition to the contact surface 8.
  • the wing 11 of the cutting insert 1 has an additional contact surface 10a corresponding to the additional contact surface 8a of the tool shank 2.
  • the design of the rotary cutting tool 1 according to this second exemplary embodiment essentially corresponds to the design according to the first exemplary embodiment.
  • Both additional contact surfaces 8a, 10a are inclined relative to the tool axis A opposite to the contact surfaces 8, 10.
  • a transition surface 18 extends approximately parallel to the drill axis A between the contact surface 10 and the additional contact surface 10a of the wing 11.
  • the contact surface 8 is connected to the additional contact surface 8a of the leg 9 only via a fillet 19.
  • the transition surface 18 therefore does not abut the tool shank 2.
  • the rotation of the cutting insert 1 relative to the tool shank 2 when assembling the drill 3 is therefore not limited by the transition surface 18, but only by the contact and additional contact surfaces 8, 10, 8a, 10a.
  • the contact surface 8 of the leg 9 extends, based on the drill axis A, over a contact height H a .
  • the height over which the additional contact surface 8a extends is referred to as the counter contact height H g .
  • the amount of the investment amount H a exceeds the amount of the counter investment amount H g by approximately 50%.
  • the contact surface 8a includes a contact angle ⁇ i and the additional contact surface 8a includes an additional contact angle a 2 .
  • the amount of the additional investment angle ⁇ 2 is less than the amount of the investment angle a ⁇ .
  • the contact angle is 30 ° and the additional contact angle ⁇ 2 is 20 °.
  • This difference in angle additionally contributes to the lower height of the additional contact surface 8a compared to the contact surface 8, so that the axial force which pulls the cutting insert 1 away from the tool shank 2 due to the inclined position of the additional contact surface 8a and the corresponding additional contact surface 10a is less than the opposite axial - Force due to the inclination of the contact surfaces 8.10.
  • a resultant force thus remains when machining a workpiece with the drill 3, which pulls the cutting insert 1 on the tool shank 2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Milling Processes (AREA)
  • Knives (AREA)
PCT/EP2003/001526 2002-02-21 2003-02-15 Rundlaufschneidwerkzeug mit auswechselbarem schneideinsatz Ceased WO2003070408A1 (de)

Priority Applications (13)

Application Number Priority Date Filing Date Title
AT03742523T ATE446154T1 (de) 2002-02-21 2003-02-15 Rundlaufschneidwerkzeug mit auswechselbarem schneideinsatz
MXPA04008179A MXPA04008179A (es) 2002-02-21 2003-02-15 Herramienta de corte giratoria con inserto de corte intercambiable.
JP2003569355A JP4397235B2 (ja) 2002-02-21 2003-02-15 交換可能な切刃インサートを備えた回転切削工具
EP03742523A EP1476269B1 (de) 2002-02-21 2003-02-15 Rundlaufschneidwerkzeug mit auswechselbarem schneideinsatz
DE50312051T DE50312051D1 (de) 2002-02-21 2003-02-15 Rundlaufschneidwerkzeug mit auswechselbarem schneideinsatz
KR1020047013004A KR100957953B1 (ko) 2002-02-21 2003-02-15 교체가능한 커팅 인서트를 갖는 회전식 커팅 툴
AU2003210281A AU2003210281A1 (en) 2002-02-21 2003-02-15 Rotary cutting tool comprising an exchangeable cutting insert
BRPI0307798-5A BR0307798B1 (pt) 2002-02-21 2003-02-15 Inserto de corte trocável e ferramenta de corte rotativa com inserto trocável
CA2484602A CA2484602C (en) 2002-02-21 2003-02-15 Rotary cutting tool comprising an exchangeable cutting insert
US10/921,781 US7360974B2 (en) 2002-02-21 2004-08-19 Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert
US12/047,904 US7832967B2 (en) 2002-02-21 2008-03-13 Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert
US12/847,216 US8366358B2 (en) 2002-02-21 2010-07-30 Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert
US13/756,990 US8807888B2 (en) 2002-02-21 2013-02-01 Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10207257.4A DE10207257B4 (de) 2002-02-21 2002-02-21 Rundlaufschneidwerkzeug mit auswechselbarem Schneideinsatz
DE10207257.4 2002-02-21

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US10/921,781 Continuation-In-Part US7360974B2 (en) 2002-02-21 2004-08-19 Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert
US10/921,781 Continuation US7360974B2 (en) 2002-02-21 2004-08-19 Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert

Publications (1)

Publication Number Publication Date
WO2003070408A1 true WO2003070408A1 (de) 2003-08-28

Family

ID=27740269

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/001526 Ceased WO2003070408A1 (de) 2002-02-21 2003-02-15 Rundlaufschneidwerkzeug mit auswechselbarem schneideinsatz

Country Status (13)

Country Link
US (4) US7360974B2 (enExample)
EP (1) EP1476269B1 (enExample)
JP (1) JP4397235B2 (enExample)
KR (1) KR100957953B1 (enExample)
CN (1) CN100478108C (enExample)
AT (1) ATE446154T1 (enExample)
AU (1) AU2003210281A1 (enExample)
BR (1) BR0307798B1 (enExample)
CA (1) CA2484602C (enExample)
DE (2) DE10207257B4 (enExample)
ES (1) ES2333419T3 (enExample)
MX (1) MXPA04008179A (enExample)
WO (1) WO2003070408A1 (enExample)

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US9248512B2 (en) 2011-05-16 2016-02-02 Sandvik Intellectual Property Ab Rotatable drilling tool as well as basic body therefor
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US8807888B2 (en) 2014-08-19
US7832967B2 (en) 2010-11-16
US20130209189A1 (en) 2013-08-15
MXPA04008179A (es) 2004-11-26
US7360974B2 (en) 2008-04-22
JP2005517539A (ja) 2005-06-16
AU2003210281A1 (en) 2003-09-09
US20110020086A1 (en) 2011-01-27
ES2333419T3 (es) 2010-02-22
BR0307798A (pt) 2004-12-14
CA2484602A1 (en) 2003-08-28
CA2484602C (en) 2010-04-06
JP4397235B2 (ja) 2010-01-13
DE10207257A1 (de) 2003-09-11
BR0307798B1 (pt) 2014-04-15
KR20040086419A (ko) 2004-10-08
DE10207257B4 (de) 2021-02-18
DE50312051D1 (de) 2009-12-03
KR100957953B1 (ko) 2010-05-13
EP1476269A1 (de) 2004-11-17
ATE446154T1 (de) 2009-11-15
US20080213053A1 (en) 2008-09-04
US8366358B2 (en) 2013-02-05
EP1476269B1 (de) 2009-10-21
CN100478108C (zh) 2009-04-15
CN1630569A (zh) 2005-06-22

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