US20020159851A1 - Twist drill for drilling having a replaceable drill tip, and a replaceable drill tip for use in a twist drill - Google Patents

Twist drill for drilling having a replaceable drill tip, and a replaceable drill tip for use in a twist drill Download PDF

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Publication number
US20020159851A1
US20020159851A1 US10/061,448 US6144802A US2002159851A1 US 20020159851 A1 US20020159851 A1 US 20020159851A1 US 6144802 A US6144802 A US 6144802A US 2002159851 A1 US2002159851 A1 US 2002159851A1
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United States
Prior art keywords
drill
shaft
insert
recess
drilling
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.)
Abandoned
Application number
US10/061,448
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English (en)
Inventor
Ulrich Krenzer
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
Application filed by Kennametal Inc filed Critical Kennametal Inc
Assigned to KENNAMETAL INC. reassignment KENNAMETAL INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KRENZER, ULRICH
Publication of US20020159851A1 publication Critical patent/US20020159851A1/en
Priority to US10/839,950 priority Critical patent/US7070367B2/en
Abandoned legal-status Critical Current

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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
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/02—Connections between shanks and removable cutting heads
    • 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
    • Y10T408/78—Tool of specific diverse material
    • 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
    • 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
    • Y10T408/90993—Screw driven means

Definitions

  • the invention relates to a twist drill for drilling having a replaceable drill tip.
  • This invention further relates to a replaceable drill tip for use in a twist drill
  • this invention relates to a drill bit with a replaceable drill bit.
  • twist drills to make borings.
  • these twist drills can differ in terms of their cutting material and geometry.
  • the cutting material traditionally used is increasingly being replaced by different types of cutting material that have a significantly higher resistance to abrasion.
  • a drill made entirely of such abrasion-resistant materials is generally too expensive, and is not economical in spite of its excellent cutting performance.
  • Alternatives are twist drills in which a drill tip made of abrasion-resistant materials is permanently attached to a carrier tool which is generally made of cheaper, more traditional materials.
  • the disadvantage of these tools is that they can be repainted only to a restricted extent. As soon as the short cutting portion made of abrasion-resistant materials has been used up, the entire tool has to be scrapped.
  • Replaceable cutting tips permit a user to replace the cutting tip when the cutting tip is worn down without having to replace the entire drill.
  • German Patent No. 196 05 157 A1 describes a drilling tool of the prior art in which the cutting head projects by means of a stud into a receiving recess on the face of the drill shaft, where it is fixed in position with a screw that is oriented at a right angle to the longitudinal axis of the drill.
  • the drilling head is fixed in position in the drill shaft with a force fit that acts in the axial direction and in the direction of rotation of the drill.
  • One object of the invention is to develop a twist drill for drilling having a replaceable drill tip, as well as a replaceable drill tip for use in a twist drill.
  • Another object of the invention is to propose a drill bit with an alternative fixing of the cutting head.
  • This object can be accomplished in a drill bit with a drill bit shaft and a cutting insert that forms the tip area of the drill bit and is detachably fixed to the drill bit shaft.
  • the cutting insert is in contact with a bearing surface on the face of the drill shaft and extends with a fixing stud that projects centrally from the bearing surface into a receiving recess, which is configured complementary thereto in the face of the drill shaft.
  • At least one peripheral segment of the fixing stud has a first longitudinal segment which merges with a screw surface into a second longitudinal section. The screw surface points away from the drill shaft, slopes upward in the direction of rotation of the drill bit toward the drill bit tip, and interacts with an opposite surface on the inner wall of the receiving recess.
  • the cutting head is in contact with a bearing surface against the face of the drill shaft, and extends by means a fixing stud that projects centrally out of the bearing surface into a complementary receiving recess in the face of the drill shaft.
  • the peripheral area of the fixing stud that interacts with the inner wall of the recess has two longitudinal segments, namely a first longitudinal segment which, with a screw surface that points toward the drill tip, slopes upward in the direction of rotation of the drill and interacts with an opposite surface on the inner wall of the receiving recess and merges into a second longitudinal segment.
  • the second longitudinal segment of the fixing stud tapers toward its free end.
  • the receiving recess becomes narrower by the same extent toward its base.
  • the shaft walls that are adjacent to the receiving recess can be correspondingly thicker and more stable in this area.
  • the tool shaft is therefore more stable with regard to a force that is exerted on the cutting head at a right angle to the longitudinal axis of the drill than would be the case with a receiving recess that becomes wider toward its base in an approximately swallowtail shape.
  • a particularly stable mounting and centering of the fixing stud in the receiving recess is essentially guaranteed if the free end of the fixing stud is provided with a cylindrical peripheral surface and the area adjacent to it and extending to the screw surface is provided with a conical peripheral surface.
  • a rotation stop projects from the face of the drill shaft and extends into a complementary recess in the bearing surface of the cutting insert.
  • the bearing surfaces of the drill shaft and the face of the tool shaft also preferably each extend at a right angle to the longitudinal axis of the drill.
  • the screw surface can form an angle of 90° with the longitudinal axis of the drill.
  • the screw surface is preferably oriented at an angle, however, and forms an angle which is ⁇ 90° and >45°. The angle is preferably 60°.
  • the surfaces of the fixing stud, as well as the surfaces of the drill bit shaft that engage with the surfaces of the fixing stud, can preferably be suitably designed to withstand torque and axial forces.
  • torque forces are exerted on a drill.
  • axial forces may push and pull on the drill in the direction along the longitudinal axis of the drill, especially during retraction of the drill from an object being drilled.
  • the peripheral segments of the fixing stud may therefore preferably be designed to withstand such forces since the peripheral segments may essentially perform a retaining function preferably to prevent the cutting insert from being pulled from the drill shaft during drilling.
  • the inner surfaces of the drill shaft may also be designed preferably to withstand the forces that are acting on the cutting insert to also substantially prevent the cutting insert from being pulled from the drill shaft. Further, since the cutting insert may essentially be screwed into place in the drill shaft in a direction opposite the direction of rotation of the drill, torque forces may be exerted on the cutting insert. According to at least one possible embodiment of the present invention, the inner surfaces of the drill shaft against which the sides of the cutting insert rest preferably must be suitably designed to essentially prevent the cutting insert from being further screwed into the shaft, which would most likely result in damage of the shaft and the insert. By strengthening the contact surfaces of the shaft and the cutting insert, the torque and axial forces can be substantially withstood to prevent damage to the drill.
  • the chip flutes of the drill bit may each be divided into essentially two portions: the portion of the chip flute on the drill shaft and the portion of the chip flute on the cutting insert.
  • the two chip flute portions can be aligned to form a single chip flute surface.
  • the cutting inserts may not be precisely manufactured due to the inherent imperfections that occur during any manufacturing process. To account for such imperfections that may occur, in one possible embodiment of the present invention it may not be necessary to have precisely aligned chip flute portions. Since the chip flute portions may simply serve to remove chips, exact precision in their design may not be a requirement for proper operation of the drill. Further, the centering of the drill tip is often more important to a drilling process than the precise design of the chip flutes, since an off-center drill tip will often produce a wobbling motion of the drill during drilling, which is in many cases undesirable.
  • the central fixing stud of the cutting insert can provide a centering function that essentially centers the drill tip along the central longitudinal axis of the drill bit. The present invention, in at least one possible embodiment, therefore teaches that as long as the drill tip of the cutting insert is designed to lie on the central longitudinal axis, it may be possible for the chip flute portions to be slightly misaligned without substantially affecting the performance of the drill.
  • Drills such as the type described above may be used, in at least one possible embodiment, to cut various materials, such as metals, wood, plastics, composites, polymers, steel, and other hard materials.
  • drills may also possibly be used in machine-operated, automatic drilling systems, such as numerically-controlled drilling systems on assembly lines.
  • replaceable cutting or drilling inserts it may be possible in at least one possible embodiment of the present invention, to substantially maintain the overall length of the drill by replacing the cutting inserts when they become worn. By substantially maintaining the length of the drill, it may not be necessary to reconfigure or reprogram the machinery using the drill in the automatic drilling process since the drill will not substantially change in length.
  • inventions include “inventions”, that is the plural of “invention”.
  • inventions the Applicant does not in any way admit that the present application does not include more than one patentably and non-obviously distinct invention, and maintains that this application may include more than one patentably and non-obviously distinct invention.
  • the Applicant hereby asserts that the disclosure of this application may include more than one invention, and, in the event that there is more than one invention, that these inventions may be patentable and non-obvious one with respect to the other.
  • FIG. 1 shows the upper segment of a drill bit with three chip flutes and a corresponding three-edged cutting insert, in a side view
  • FIG. 2 is a side view of the cutting insert illustrated in FIG. 1;
  • FIG. 3 is a plan view from overhead of the cutting insert in the direction of the arrow III in FIG. 2;
  • FIG. 4 is a side view of a drill shaft as illustrated in FIG. 1, with the cutting insert removed;
  • FIG. 5 is a plan view from overhead of the face of the tool shaft in the direction of the arrow 5 in FIG. 4;
  • FIG. 6 shows an additional embodiment of a cutting insert in longitudinal section
  • FIG. 7 shows an additional embodiment of a cutting insert in longitudinal section
  • FIG. 8 is a side view of the upper portion of a drill bit with a two-edged cutting insert
  • FIG. 9 is a side view of the upper longitudinal segment of the drill with the cutting insert removed;
  • FIG. 10 is a plan view from overhead in the direction of the arrow X in FIG. 9;
  • FIG. 11 shows a two-edged cutting insert in a side view
  • FIG. 12 is a plan view from overhead in the direction indicated by the arrow XII in FIG. 11;
  • FIG. 13 is a view of the drill in FIG. 8 with additional features according to at least one possible embodiment of the present invention.
  • the drill bits illustrated in the accompanying drawings are composed of a drill shaft 1 and a cutting insert 2 .
  • the cutting insert 2 a on the drill illustrated in FIGS. 1 to 5 is three-edged. Accordingly, there are a total of three chip flutes 3 in the drill shaft 1 , which continue with chip flute segments 3 a into the cutting insert 2 a .
  • the cutting insert has three major cutting edges 4 which—as can be seen in particular in the plan view from overhead in FIG. 3—are oriented in approximately a star shape and converge in the drill tip 5 .
  • the three edges of the cutting insert mean that the cutting insert, likewise shown in the plan view from overhead in FIG. 3, has approximately the shape of a trifurcated star.
  • the cutting insert 2 a has a flat bearing surface 6 , which is in flat contact against the face 7 of the drill shaft 1 .
  • the bearing surface 6 and the face 7 extend at a right angle with respect to the center longitudinal axis 8 of the drill bit.
  • Shaped onto the bearing surface 6 is a central fixing stud 9 , which extends in the direction of the center longitudinal axis 8 .
  • the fixing stud 9 lies in a complementary configured receiving recess 10 in the drill shaft 1 , where it is effectively fixed by axial undercuts.
  • the receiving recess 10 emerges into the chip flutes 3 with lateral openings 11 that extend to the face 7 .
  • the cutting surface areas that form the chip flute segments 3 a and the chip flute 3 of the drill shaft 1 are aligned with one another, whereby they are interrupted only by the joint 12 between the cutting insert 2 a and the drill shaft 1 .
  • the chip flute segments 3 a divide the fixing stud 9 into three peripheral segments 13 , which interact with the inside walls 14 of the receiving recess 10 .
  • the fixing stud 9 has a first longitudinal segment 15 which merges with a screw surface 16 into a second longitudinal segment 17 .
  • the screw surface 16 points toward the drill tip 5 and projects in the manner of a radial shoulder from the peripheral segment 13 .
  • the screw surface 16 slopes upward in the direction of rotation 18 of the drill bit toward the drill tip 5 and interacts with a complementary configured opposite surface 19 on the inside walls 14 of the receiving recess 10 .
  • the cutting insert is inserted with the fixing stud 9 into the receiving recess 10 so that its peripheral segments 13 are located in the vicinity of the openings 11 .
  • the screw surfaces 16 arrive below the opposite surfaces 19 on the inner walls 14 , as a result of which the cutting insert is pressed in the direction indicated by the arrow 20 with its bearing surface 6 against the face 7 .
  • the surface of the second longitudinal segment 17 that interacts with the inner walls 14 can be a partly cylindrical surface as illustrated in FIG. 6.
  • the second longitudinal segment 17 tapers conically toward the drill shaft.
  • special preference is given to the configuration illustrated in FIG. 2, in which adjacent to the screw surface 16 there is a conical segment 21 , which merges into a cylindrical segment 22 .
  • the cylindrical segment 22 effects a centering of the cutting insert 2 a in the receiving recess 10 .
  • the diameter of the cylindrical segment 22 can be relatively small compared to the segments adjacent to it toward the tip and that have the screw surfaces 16 necessary for the axial bracing.
  • the area 23 of the receiving recess 10 that interacts with the cylindrical segment 22 can also have a small inside diameter. That in turn means a greater wall thickness 24 in the area 23 and thus increased stability. Especially in the area 23 have a greater effect on account of the lever effect. However, the greater wall thickness 24 in this area guarantees increased stability of the drill shaft 1 .
  • the torque forces act on the cutting insert 2 a during a drilling procedure. Due to the lever effect, a large portion of the torque forces are exerted at the transition between the bearing surface 6 and the first longitudinal segment 15 . Therefore, it is advantageous for the fixing stud 9 to have an increased thickness at that particular area. Further, since the majority of the torque forces are concentrated on that particular area, it is possible for the fixing stud 9 to decrease in thickness in the area of the cylindrical segment 22 . In addition, by decreasing the thickness of the fixing stud 9 , it is thereby possible to have an increased thickness of the shaft 1 in the area 23 . As torque forces are exerted on the cutting insert 2 a , force is also exerted on the portions of the shaft 1 about the recess 10 .
  • the lever effect due to the lever effect, the majority of the force is exerted on the area 23 near the bottom of the recess 10 .
  • the wall thickness 24 can be consequently increased to compensate for the greater torque forces exerted in that particular area 23 .
  • the lever effect therefore can be accounted for by increasing thickness of the shaft 1 and the fixing stud 9 at the areas where the concentration of force is the greatest.
  • the screw surfaces 16 on the fixing stud 9 of a cutting insert 2 can basically form an angle of 90° with the center longitudinal axis 8 of the drill or of the cutting insert. However, preference is given to screw surfaces 16 that are oriented at an angle and form an angle ⁇ with the center longitudinal axis 8 which is ⁇ 90° and ⁇ 45°.
  • FIGS. 8 to 12 show a drill bit with two chip flutes and accordingly a two-edged cutting insert 2 b .
  • the configuration of the fixing stud 9 and of the receiving recess 10 of this drill bit is the same as that of the drill bit described above.
  • Two rotation stops 25 project from the face 7 a of the drill shaft 1 .
  • the rotation stops 25 are diametrically opposite each other and are realized with four surfaces in an essentially wedge shape.
  • Their outside surface 26 is formed by the peripheral surface of the drill shaft 1 .
  • Their inside surface 27 interacts with a complementary configured opposite surface 28 , which is part of the wall of a recess 29 in the bearing surface 6 of the cutting insert 2 b , which recess 29 holds the rotation stop 25 .
  • the rotation stops also have two inclined surfaces, whereby the one inclined surface 30 points in the direction of rotation 18 of the drill bit and merge into a face 7 a .
  • the other inclined surface 31 points opposite to the direction of rotation 18 of the drill bit and is a partial surface of the face 32 that forms the chip flute 3 .
  • the inclined surface 30 interacts with an inclined surface 33 that is formed from the wall of the recess 29 and acts as an opposite bearing surface.
  • FIG. 13 is a view of the drill shown in FIG. 8 with additional features according to at least one possible embodiment of the present invention.
  • the drill bit has a drill shank portion 101 that is inserted into a tool chuck 102 .
  • the tool chuck 102 holds the drill bit and provides a driving force to rotate the drill during a drilling process.
  • the drill shown has a two-edged cutting insert design, but is not the only possible embodiment. This drill bit and chuck configuration may also be used with cutting inserts and bits with more than two edges, such as a cutting insert with three edges, as shown in FIGS. 1 - 3 .
  • One feature (or aspect) of an embodiment of the invention resides broadly in a drill bit with a drill bit shaft ( 1 ) and a cutting insert that forms the tip area of the drill bit and is detachable fixed to the drill bit shaft, and at least one chip flute ( 3 ) that is located in the drill bit shaft ( 1 ) and extends into the cutting insert ( 2 ), whereby the cutting insert is in contact with a bearing surface ( 6 ) on the face ( 7 ) of the frill shaft ( 1 ) and extends with a fixing stud ( 9 ) that projects centrally from the bearing surface ( 6 ) into a receiving recess ( 10 ) which is configured complementary thereto in the face ( 7 ) of the drill shaft ( 1 ), characterized by the fact that at least one peripheral segment ( 13 ) of the fixing stud ( 9 ) has a first longitudinal segment ( 15 ) which with a screw surface ( 16 ) that points away from the drill shaft ( 1 ), slopes upward in the direction of rotation ( 18 ) of the drill bit
  • Another feature (or aspect) of an embodiment of the invention resides broadly in a drill bit, characterized by the fact that the second longitudinal segment ( 17 ) tapers toward its free end.
  • Yet another feature (or aspect) of an embodiment of the invention resides broadly in a drill bit, characterized by a first stud segment ( 22 ) forming the free end with a cylindrical peripheral surface, and a second segment ( 21 ) that has a conical peripheral surface and extends to the screw surface ( 16 ).
  • Still another feature (or aspect) of an embodiment of the invention resides broadly in a drill bit characterized by a rotation stop ( 25 ) that projects from the face ( 7 ) of the drill shaft ( 1 ) and projects into an essentially complementary shaped recess in the bearing surface ( 6 ) of the cutting insert ( 2 ).
  • a further feature (or aspect) of an embodiment of the invention resides broadly in a drill bit, characterized by the fact that the screw surface ( 16 ) forms an angle ( ⁇ ) of 90° to 45° with the longitudinal axis ( 8 ) of the drill bit.
  • Another feature (or aspect) of an embodiment of the invention resides broadly in a drill bit, characterized by an angle ( ⁇ ) of 60°.
  • NHL-KEH-08 issued to inventors Krenzer et al. on May 18, 1999; and U.S. Pat. No. 6,309,149, having attorney docket no. NHL-KEH-12 US, issued to inventor BORSCHERT on Oct. 30, 2001.
  • NHL-KEH-15 having inventors Hans-Wilm HEINRICH, Manfred WOLF, and Dieter SCHMIDT, filed on Aug. 22, 2001; Ser. No. 09/966,735, having attorney docket no. NHL-KEH-16 US, having inventor Ulrich KRENZER, filed on Sep. 28, 2001; and Ser. No. 10/008,528, having attorney docket no. NHL-KEH-17, having inventor Rudi HARTLOHNER, filed on Nov. 5, 2001;.
  • twist drills that may possibly be utilized or adapted for use in at least one possible embodiment of the present invention may possibly be found in the following U.S. patents: U.S. Pat. No. 4,209,275, issued to Kim on Jun. 24, 1980; U.S. Pat. No. 4,556,347, issued to Barish on Dec. 3, 1985; U.S. Pat. No. 4,688,972, issued to Kubota on Aug. 25, 1987; U.S. Pat. No. 4,756,650, issued to Wakihira et al. on Jul. 12, 1988; U.S. Pat. No. 4,762,445, issued to Bunting et al. on Aug. 9, 1988; U.S. Pat. No.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Earth Drilling (AREA)
US10/061,448 1999-08-03 2002-02-01 Twist drill for drilling having a replaceable drill tip, and a replaceable drill tip for use in a twist drill Abandoned US20020159851A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/839,950 US7070367B2 (en) 1999-08-03 2004-05-06 Twist drill for drilling having a replaceable drill tip, and a replaceable drill tip for use in a twist drill

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19936579 1999-08-03
DE19936579.2 1999-08-03
PCT/EP2000/004851 WO2001008840A1 (de) 1999-08-03 2000-05-27 Bohrer mit auswechselbarem schneidkopf

Related Parent Applications (1)

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PCT/EP2000/004851 Continuation-In-Part WO2001008840A1 (de) 1999-08-03 2000-05-27 Bohrer mit auswechselbarem schneidkopf

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US10/839,950 Continuation US7070367B2 (en) 1999-08-03 2004-05-06 Twist drill for drilling having a replaceable drill tip, and a replaceable drill tip for use in a twist drill

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US20020159851A1 true US20020159851A1 (en) 2002-10-31

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US10/061,448 Abandoned US20020159851A1 (en) 1999-08-03 2002-02-01 Twist drill for drilling having a replaceable drill tip, and a replaceable drill tip for use in a twist drill
US10/839,950 Expired - Lifetime US7070367B2 (en) 1999-08-03 2004-05-06 Twist drill for drilling having a replaceable drill tip, and a replaceable drill tip for use in a twist drill

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US (2) US20020159851A1 (enrdf_load_stackoverflow)
EP (1) EP1200222B1 (enrdf_load_stackoverflow)
JP (1) JP4756624B2 (enrdf_load_stackoverflow)
KR (1) KR100639527B1 (enrdf_load_stackoverflow)
AT (1) ATE235985T1 (enrdf_load_stackoverflow)
AU (1) AU772301B2 (enrdf_load_stackoverflow)
BR (1) BR0012904A (enrdf_load_stackoverflow)
CA (1) CA2379637A1 (enrdf_load_stackoverflow)
DE (1) DE50001645D1 (enrdf_load_stackoverflow)
ES (1) ES2195911T3 (enrdf_load_stackoverflow)
MX (1) MXPA01012098A (enrdf_load_stackoverflow)
PT (1) PT1200222E (enrdf_load_stackoverflow)
WO (1) WO2001008840A1 (enrdf_load_stackoverflow)

Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6506003B1 (en) * 2001-10-02 2003-01-14 Kennametal Inc. Cutting tool
US6582164B1 (en) * 2002-02-25 2003-06-24 Kennametal Inc. Roller twist drill
US20050084352A1 (en) * 2002-02-21 2005-04-21 Bernhard Borschert Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert
US20050135887A1 (en) * 2003-12-17 2005-06-23 Borschert Bernhard W. Twist drill
US20050274551A1 (en) * 2004-06-09 2005-12-15 Rainer Batliner Drill
US20060072976A1 (en) * 2004-10-05 2006-04-06 Frota De Souza Ruy Modular drill
US20060093449A1 (en) * 2004-10-28 2006-05-04 Iscar Ltd. Cutting tool assembly and cutting head therefor
US20080095588A1 (en) * 2006-10-18 2008-04-24 Henderer Willard E Spiral flute tap
US20080166194A1 (en) * 2007-01-09 2008-07-10 Durfee Laverne R Drill bit
US20080181735A1 (en) * 2007-01-25 2008-07-31 Ting Fong Electric & Machinery Co., Ltd. Method for manufacturing drill cutters and structure thereof
US20080247899A1 (en) * 2007-04-03 2008-10-09 Cho H Sam Contoured PCD and PCBN for twist drill tips and end mills and methods of forming the same
US20090010709A1 (en) * 2007-07-03 2009-01-08 Seco Tools Ab Multi-piece tool assembly and cutting tool
US20090311060A1 (en) * 2008-04-14 2009-12-17 Seco Tools Ab T00l for rotary cutting machining
US20100003094A1 (en) * 2007-01-09 2010-01-07 Irwin Industrial Tool Company Drill bit
US20100135741A1 (en) * 2008-12-03 2010-06-03 Black & Decker Inc. Drill Bit Including One Piece Cutting Head
US20100307640A1 (en) * 2009-06-03 2010-12-09 Durfee La Verne R Cutting edge and cutting tool
US20110020085A1 (en) * 2009-07-27 2011-01-27 Hilti Aktiengesellschaft Drill and production method
CN102159351A (zh) * 2009-12-08 2011-08-17 Osg株式会社 不重磨式旋转工具
US8070397B2 (en) 2008-02-19 2011-12-06 Irwin Industrial Tool Company Self feed bit
CN102847992A (zh) * 2012-09-21 2013-01-02 株洲钻石切削刀具股份有限公司 一种钻削加工刀具
US20130006248A1 (en) * 2010-03-19 2013-01-03 CPL Holdings Pty. Ltd. Drill bit
CN102307693B (zh) * 2009-02-04 2013-07-31 Osg株式会社 前端头可换式旋转工具，前端头及工具主体
US20130317508A1 (en) * 2011-02-11 2013-11-28 CPL Holdings Pty. Ltd. Drill Bit
US8678723B2 (en) 2009-08-18 2014-03-25 Osg Corporation Throw-away rotating tool
US8931982B2 (en) 2009-12-08 2015-01-13 Osg Corporation Throw-away rotating tool
CN104827101A (zh) * 2015-05-26 2015-08-12 苏州阿诺精密切削技术股份有限公司 Y形内冷双螺钉锁紧齿冠钻杆
CN105171060A (zh) * 2015-09-30 2015-12-23 苏州阿诺精密切削技术股份有限公司 V型定位槽内双螺钉锁紧齿冠刀片
CN105290466A (zh) * 2015-12-04 2016-02-03 苏州阿诺精密切削技术股份有限公司 交叉槽定位双螺钉锁紧齿冠钻杆
CN105328244A (zh) * 2015-12-04 2016-02-17 苏州阿诺精密切削技术股份有限公司 交叉槽定位双螺钉锁紧齿冠钻头
US9468980B2 (en) 2007-04-03 2016-10-18 H. Sam Cho Contoured PCD and PCBN segments for cutting tools containing such segments
US20170100784A1 (en) * 2015-10-07 2017-04-13 Kennametal Inc. Cutting head, rotary tool and support for the rotary tool and for the accommodation of the cutting head
US9643262B2 (en) 2013-07-25 2017-05-09 Kennametal Inc. Coupling mechanism for cutting tool
US9643264B2 (en) 2013-07-25 2017-05-09 Kennametal Inc. Coupling mechanism for cutting tool
US20170265874A1 (en) * 2016-03-21 2017-09-21 Jug Hee Hwang Detachable medical cutting tool
USD798921S1 (en) 2015-10-07 2017-10-03 Kennametal Inc. Cutting head for modular drill
USD798922S1 (en) 2015-10-07 2017-10-03 Kennametal Inc. Cutting head for rotary drill
US9937567B2 (en) 2015-10-07 2018-04-10 Kennametal Inc. Modular drill
US10040132B2 (en) 2015-06-24 2018-08-07 Kennametal Inc. Rotary tool, in particular a drill for such a rotary tool
US10052698B2 (en) 2013-10-15 2018-08-21 Kennametal Inc. Modular carrier tool and tool head
US10058930B2 (en) 2013-04-03 2018-08-28 Kennametal Inc. Tool head for rotary cutting tool and rotary cutting tool including same
US20190015909A1 (en) * 2016-03-17 2019-01-17 Hartmetall-Werkzeugfabrik Paul Horn Gmbh Cutting insert, tool holder and tool
CN109262027A (zh) * 2018-11-02 2019-01-25 株洲钻石切削刀具股份有限公司 一种夹持稳定的钻削加工刀具
CN109262026A (zh) * 2018-11-02 2019-01-25 株洲钻石切削刀具股份有限公司 一种轴向定位准确的钻削加工刀具
US10213845B2 (en) 2014-04-08 2019-02-26 Kennametal Inc. Rotary tool, in particular a drill, and a cutting head for said rotary tool
US10537943B2 (en) 2017-03-27 2020-01-21 Kennametal Inc Modular rotary tool and modular tool system
US10799958B2 (en) 2017-08-21 2020-10-13 Kennametal Inc. Modular rotary cutting tool
WO2021122821A1 (de) * 2019-12-18 2021-06-24 MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG Werkzeugteil zur verbindung mit einem werkzeuggegenstück, werkzeuggegenstück zur verbindung mit einem werkzeugteil, und werkzeug
US11565356B2 (en) 2017-07-13 2023-01-31 Kennametal Inc. Method for producing a cutting head
US11911830B2 (en) 2019-06-13 2024-02-27 Kennametal India Ltd. Indexable drilling inserts
US11919094B2 (en) 2021-07-20 2024-03-05 Kennametal Inc. Modular drill apparatus with cutting tip in situ insert assembly
US12472566B2 (en) 2021-08-17 2025-11-18 Kennametal India Ltd. Indexable drill assembly with coolant system

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE523205C2 (sv) * 2001-06-06 2004-04-06 Sandvik Ab Roterbart verktyg med utbytbar skärspets vid verktygets spånavverkande fria ände
SE524063C2 (sv) * 2002-01-29 2004-06-22 Sandvik Ab Verktygskoppling för roterande verktyg där kopplingens hondel har ett triangulärt tvärsnitt
KR100438437B1 (ko) 2002-04-10 2004-07-03 삼성전자주식회사 광 통신망에서 광회선분배장치 및 그 처리 방법
EP2399531B1 (en) * 2002-08-08 2016-01-27 Surgibit Ip Holdings Pty Limited Drill bit
US6929426B2 (en) * 2003-02-19 2005-08-16 Kennametal Inc. Indexable cutting tool
JP4272455B2 (ja) * 2003-03-12 2009-06-03 京セラ株式会社 スローアウェイ式回転切削工具
IL162147A (en) * 2004-05-24 2008-03-20 Gil Hecht Drill with interchangeable head
SE528299C2 (sv) * 2004-09-24 2006-10-17 Seco Tools Ab Skärspets och skärverktyg med hållardel utformad som stympad konisk gänga
JP2007038362A (ja) * 2005-08-04 2007-02-15 Osg Corp 切削工具
US20070057015A1 (en) * 2005-09-09 2007-03-15 Kevin Colligan Tapered friction stir welding and processing tool
IL172121A0 (en) * 2005-11-22 2009-02-11 Joseph Pano Cutting tool assembly
DE102006000221A1 (de) * 2006-05-10 2007-11-15 Hilti Ag Hartstoffbohrkopf
US20070274794A1 (en) * 2006-05-26 2007-11-29 Cirino Thomas J Oblique angle serration location and drive interface
US7717654B2 (en) * 2006-05-26 2010-05-18 Cirino Thomas J Drill tip with serrated and dowel pinned shank interface
DE102006000251A1 (de) * 2006-05-30 2007-12-06 Hilti Ag Hartstoffkopf und Drehschlagbohrer
IL181296A0 (en) * 2007-02-12 2007-07-04 Iscar Ltd Tool with releasably mounted self-clamping cutting head
IL181295A (en) * 2007-02-12 2011-07-31 Iscar Ltd A cutting tool that includes a self-locking release bar head
US7544026B2 (en) * 2007-02-13 2009-06-09 Irwin Industrial Tool Company Drill bit screw tip
DE102007044095A1 (de) * 2007-09-14 2009-03-19 Hartmetall-Werkzeugfabrik Paul Horn Gmbh Bohrwerkzeug mit Bohrkrone
US7740088B1 (en) 2007-10-30 2010-06-22 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Ultrasonic rotary-hammer drill
WO2008072840A2 (en) * 2007-11-05 2008-06-19 Taegutec. Ltd. Rotary cutting tool
US7625161B1 (en) 2008-08-08 2009-12-01 Kennametal Inc. Rotary cutting tool assembly and cutting insert and tool shank therefor
DE102009042665A1 (de) * 2009-09-23 2011-05-19 Esa Eppinger Gmbh Schnittstelle zwischen einem Aufnahmekörper und einem insbesondere als Werkzeug- oder Werkstückhalter ausgebildeten Einsatz
DE202011050277U1 (de) 2011-05-30 2012-07-04 Gerhard Bockholt Bohrwerkzeug
KR101396016B1 (ko) * 2012-06-08 2014-05-16 한국야금 주식회사 커팅 인서트 자체 고정 타입의 인덱서블 드릴
US9409241B2 (en) * 2012-12-13 2016-08-09 Iscar, Ltd. Cutting tool and replaceable cutting head having spiral driven surfaces therefor
FR3004746B1 (fr) * 2013-04-19 2015-05-15 Diager Plaquette de coupe
DE102015106082A1 (de) * 2014-04-24 2015-10-29 Kennametal India Ltd. Schneidwerkzeug mit auswechselbarem Schneideinsatz und geneigten Befestigungselementen
US9889509B2 (en) 2014-05-05 2018-02-13 Kennametal Inc. Cutter heads with improved coupling
CN104588739B (zh) * 2014-12-30 2017-02-22 株洲钻石切削刀具股份有限公司 一种旋转加工刀具
CN104907614A (zh) * 2015-05-26 2015-09-16 苏州阿诺精密切削技术股份有限公司 V形定位双螺钉锁紧齿冠钻杆
CN104827094A (zh) * 2015-05-26 2015-08-12 苏州阿诺精密切削技术股份有限公司 V形定位双螺钉锁紧齿冠钻头
CN105171062A (zh) * 2015-09-30 2015-12-23 苏州阿诺精密切削技术股份有限公司 V型定位槽内双螺钉锁紧齿冠钻杆
US11235397B2 (en) 2016-12-16 2022-02-01 Kennametal Inc. Side-activated modular drill
EP3427876B1 (en) * 2017-07-10 2022-06-22 Sandvik Intellectual Property AB Rotary cutting insert and tool having axial locking member
US11110521B2 (en) * 2018-03-07 2021-09-07 Iscar, Ltd. Rotary cutting head having a rigid mounting protuberance and rotary cutting tool
DE102019116160A1 (de) 2018-06-20 2019-12-24 Kennametal Inc. Seitlich geschlossener modularer Bohrer mit federunterstütztem Auswurf
US11471952B2 (en) 2020-03-19 2022-10-18 Kennametal Inc. Cutting tool having replaceable cutting head and method of securing a replaceable cutting head
CN112605439B (zh) * 2020-12-26 2024-06-04 常州肯达工具有限公司 一种方便拆卸维护的钻头
US11883888B2 (en) 2021-06-28 2024-01-30 Kennametal Inc. Modular drill with enhanced bump-off capability
US11839920B2 (en) 2021-06-28 2023-12-12 Kennametal Inc. Modular drill and method for using a modular drill

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE524677C (de) 1931-05-11 Emil Kremer Bohrer mit auswechselbaren Schneidmessern fuer Metallbearbeitung
DE367010C (de) * 1923-01-15 Georg Samuel Dipl Ing Spiralbohrer mit schwalbenschwanzfoermig eingesetztem Kopf aus Schnellstahl
DE94340C (de) * 1896-09-27 1897-10-16 Quergetheilter Spiralbohrer mit auswechselbarem Spitzentheil
US756339A (en) * 1903-11-14 1904-04-05 William R Down Composite drill.
US932071A (en) 1908-12-10 1909-08-24 Arthur Haendler Spiral drill.
FR828642A (fr) * 1937-11-03 1938-05-24 Perfectionnement aux forets
FR907980A (fr) 1944-05-24 1946-03-27 Perfectionnements aux meules et outils d'usinage employant des cristaux contondants ou matières quelconques dures et cassantes
US3293727A (en) 1961-04-12 1966-12-27 Bilt Rite Tool & Machine Co Cutting tool
US3153356A (en) * 1962-12-17 1964-10-20 Howard K Dearborn Gun drill
US3359837A (en) 1965-01-26 1967-12-26 Detroit Reamer & Tool Company Rotary tool construction
SE426148B (sv) 1981-10-12 1982-12-13 Hugo Linden Byggbart borr
DE3306209C2 (de) 1983-02-23 1985-02-28 Iscar Hartmetall GmbH, 7505 Ettlingen Bohrwerkzeug mit auswechselbarem Schneideinsatz
US5024563A (en) 1989-09-08 1991-06-18 North East Form Engineering, Inc. Cutting apparatus
US5228812A (en) 1989-12-25 1993-07-20 Sumitomo Electric Industries, Ltd. Throw-away tipped drill
DE69112665T2 (de) 1990-02-20 1996-04-04 Sumitomo Electric Industries Bohrer mit Einwegschneideinsatz.
US5114286A (en) * 1991-08-13 1992-05-19 Calkins Donald W Interchangeable tool alignment system
DE4435857A1 (de) 1994-10-07 1996-04-11 Kennametal Hertel Ag Bohrer mit einem Bohrspitzenteil
US6012881A (en) 1995-03-03 2000-01-11 Komet Praezisionswerkzeuge Robert Breuning Gmbh Drilling tool
JP3307809B2 (ja) 1995-10-05 2002-07-24 兼房株式会社 シャンク付回転工具
DE19543233A1 (de) 1995-11-07 1997-05-15 Johne & Co Praezisionswerkzeug Bohrwerkzeug mit auswechselbarer Spitze
SE511429C2 (sv) * 1996-09-13 1999-09-27 Seco Tools Ab Verktyg, skärdel, verktygskropp för skärande bearbetning samt metod för montering av skärdel till verktygskropp
SE510533C2 (sv) 1996-11-04 1999-05-31 Seco Tools Ab Verktyg för skärande bearbetning
IL120948A0 (en) 1997-05-29 1997-09-30 Iscar Ltd Cutting tool assembly
US6283682B1 (en) * 1997-09-30 2001-09-04 Jerald D. Plummer Helically fluted twist drill device
US6071045A (en) 1998-05-06 2000-06-06 Janness; Daniel Cutting insert and tool
IL125766A (en) * 1998-08-13 2002-12-01 Iscar Ltd Tool shank and a replaceable cutting head for mounting thereon in a self-clamping manner
DE19945097B4 (de) 1999-09-21 2008-04-17 J. Kühl - 3K - Engineering Spannmittel
US6582164B1 (en) * 2002-02-25 2003-06-24 Kennametal Inc. Roller twist drill

Cited By (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6506003B1 (en) * 2001-10-02 2003-01-14 Kennametal Inc. Cutting tool
US20050084352A1 (en) * 2002-02-21 2005-04-21 Bernhard Borschert Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert
US7832967B2 (en) 2002-02-21 2010-11-16 Kennametal Inc. Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert
US20110020086A1 (en) * 2002-02-21 2011-01-27 Bernhard Borschert Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert
US8807888B2 (en) 2002-02-21 2014-08-19 Kennametal Inc. Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert
US8366358B2 (en) 2002-02-21 2013-02-05 Kennametal Inc. Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert
US7360974B2 (en) 2002-02-21 2008-04-22 Kennametal Inc. Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert
US6582164B1 (en) * 2002-02-25 2003-06-24 Kennametal Inc. Roller twist drill
US20050135887A1 (en) * 2003-12-17 2005-06-23 Borschert Bernhard W. Twist drill
US7101125B2 (en) * 2003-12-17 2006-09-05 Kennametal Inc. Twist drill
US20050274551A1 (en) * 2004-06-09 2005-12-15 Rainer Batliner Drill
US7497282B2 (en) 2004-06-09 2009-03-03 Hilti Aktiengesellschaft Drill bit having radially extending cutting bits on radial legs
US7309196B2 (en) 2004-10-05 2007-12-18 Kennametal Inc. Modular drill
US20060072976A1 (en) * 2004-10-05 2006-04-06 Frota De Souza Ruy Modular drill
USRE44915E1 (en) 2004-10-05 2014-05-27 Kennametal Inc. Modular drill
US7407350B2 (en) * 2004-10-28 2008-08-05 Iscar Ltd. Cutting tool assembly and cutting head therefor
US20060093449A1 (en) * 2004-10-28 2006-05-04 Iscar Ltd. Cutting tool assembly and cutting head therefor
US20080095588A1 (en) * 2006-10-18 2008-04-24 Henderer Willard E Spiral flute tap
US7950880B2 (en) * 2006-10-18 2011-05-31 Kennametal Inc. Spiral flute tap
US20100003094A1 (en) * 2007-01-09 2010-01-07 Irwin Industrial Tool Company Drill bit
US20080166194A1 (en) * 2007-01-09 2008-07-10 Durfee Laverne R Drill bit
US20080181735A1 (en) * 2007-01-25 2008-07-31 Ting Fong Electric & Machinery Co., Ltd. Method for manufacturing drill cutters and structure thereof
US20080247899A1 (en) * 2007-04-03 2008-10-09 Cho H Sam Contoured PCD and PCBN for twist drill tips and end mills and methods of forming the same
US9468980B2 (en) 2007-04-03 2016-10-18 H. Sam Cho Contoured PCD and PCBN segments for cutting tools containing such segments
US8052765B2 (en) * 2007-04-03 2011-11-08 Cho H Sam Contoured PCD and PCBN for twist drill tips and end mills and methods of forming the same
US20090010709A1 (en) * 2007-07-03 2009-01-08 Seco Tools Ab Multi-piece tool assembly and cutting tool
US7980795B2 (en) * 2007-07-03 2011-07-19 Seco Tools Ab Multi-piece tool assembly and cutting tool
US8070397B2 (en) 2008-02-19 2011-12-06 Irwin Industrial Tool Company Self feed bit
US20090311060A1 (en) * 2008-04-14 2009-12-17 Seco Tools Ab T00l for rotary cutting machining
US8142116B2 (en) * 2008-04-14 2012-03-27 Seco Tools Ab Tool for rotary cutting machining
US20100135741A1 (en) * 2008-12-03 2010-06-03 Black & Decker Inc. Drill Bit Including One Piece Cutting Head
US7861807B2 (en) 2008-12-03 2011-01-04 Black & Decker Inc. Drill bit including one piece cutting head
US8864425B2 (en) 2009-02-04 2014-10-21 Osg Corporation Bevel head replaceable rotary tool, bevel head and tool body
CN102307693B (zh) * 2009-02-04 2013-07-31 Osg株式会社 前端头可换式旋转工具，前端头及工具主体
US20100307640A1 (en) * 2009-06-03 2010-12-09 Durfee La Verne R Cutting edge and cutting tool
US20110020085A1 (en) * 2009-07-27 2011-01-27 Hilti Aktiengesellschaft Drill and production method
US8777527B2 (en) * 2009-07-27 2014-07-15 Hilti Aktiengesellschaft Drill production method
US8678723B2 (en) 2009-08-18 2014-03-25 Osg Corporation Throw-away rotating tool
US8931982B2 (en) 2009-12-08 2015-01-13 Osg Corporation Throw-away rotating tool
CN102159351A (zh) * 2009-12-08 2011-08-17 Osg株式会社 不重磨式旋转工具
US20130006248A1 (en) * 2010-03-19 2013-01-03 CPL Holdings Pty. Ltd. Drill bit
US20130317508A1 (en) * 2011-02-11 2013-11-28 CPL Holdings Pty. Ltd. Drill Bit
CN102847992A (zh) * 2012-09-21 2013-01-02 株洲钻石切削刀具股份有限公司 一种钻削加工刀具
US10058930B2 (en) 2013-04-03 2018-08-28 Kennametal Inc. Tool head for rotary cutting tool and rotary cutting tool including same
US9643264B2 (en) 2013-07-25 2017-05-09 Kennametal Inc. Coupling mechanism for cutting tool
US9643262B2 (en) 2013-07-25 2017-05-09 Kennametal Inc. Coupling mechanism for cutting tool
US10052698B2 (en) 2013-10-15 2018-08-21 Kennametal Inc. Modular carrier tool and tool head
US10213845B2 (en) 2014-04-08 2019-02-26 Kennametal Inc. Rotary tool, in particular a drill, and a cutting head for said rotary tool
CN104827101A (zh) * 2015-05-26 2015-08-12 苏州阿诺精密切削技术股份有限公司 Y形内冷双螺钉锁紧齿冠钻杆
US10040132B2 (en) 2015-06-24 2018-08-07 Kennametal Inc. Rotary tool, in particular a drill for such a rotary tool
CN105171060A (zh) * 2015-09-30 2015-12-23 苏州阿诺精密切削技术股份有限公司 V型定位槽内双螺钉锁紧齿冠刀片
US10071430B2 (en) * 2015-10-07 2018-09-11 Kennametal Inc. Cutting head, rotary tool and support for the rotary tool and for the accommodation of the cutting head
USD798921S1 (en) 2015-10-07 2017-10-03 Kennametal Inc. Cutting head for modular drill
USD798922S1 (en) 2015-10-07 2017-10-03 Kennametal Inc. Cutting head for rotary drill
US9937567B2 (en) 2015-10-07 2018-04-10 Kennametal Inc. Modular drill
US20170100784A1 (en) * 2015-10-07 2017-04-13 Kennametal Inc. Cutting head, rotary tool and support for the rotary tool and for the accommodation of the cutting head
CN105290466A (zh) * 2015-12-04 2016-02-03 苏州阿诺精密切削技术股份有限公司 交叉槽定位双螺钉锁紧齿冠钻杆
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US10751814B2 (en) * 2016-03-17 2020-08-25 Hartmetall-Werkzeugfabrik Paul Horn Gmbh Cutting insert, tool holder and tool
US20190015909A1 (en) * 2016-03-17 2019-01-17 Hartmetall-Werkzeugfabrik Paul Horn Gmbh Cutting insert, tool holder and tool
US20170265874A1 (en) * 2016-03-21 2017-09-21 Jug Hee Hwang Detachable medical cutting tool
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US11565356B2 (en) 2017-07-13 2023-01-31 Kennametal Inc. Method for producing a cutting head
US10799958B2 (en) 2017-08-21 2020-10-13 Kennametal Inc. Modular rotary cutting tool
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US12472566B2 (en) 2021-08-17 2025-11-18 Kennametal India Ltd. Indexable drill assembly with coolant system

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