WO2010058856A1 - Plaquette de coupe, outil de coupe et procédé de coupe utilisant l’outil de coupe - Google Patents

Plaquette de coupe, outil de coupe et procédé de coupe utilisant l’outil de coupe Download PDF

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Publication number
WO2010058856A1
WO2010058856A1 PCT/JP2009/069809 JP2009069809W WO2010058856A1 WO 2010058856 A1 WO2010058856 A1 WO 2010058856A1 JP 2009069809 W JP2009069809 W JP 2009069809W WO 2010058856 A1 WO2010058856 A1 WO 2010058856A1
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WO
WIPO (PCT)
Prior art keywords
cutting
cutting edge
corner
insert according
cutting insert
Prior art date
Application number
PCT/JP2009/069809
Other languages
English (en)
Japanese (ja)
Inventor
洋司 小林
Original Assignee
京セラ株式会社
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 京セラ株式会社 filed Critical 京セラ株式会社
Priority to CN2009801465925A priority Critical patent/CN102223975B/zh
Priority to JP2010511437A priority patent/JP4597269B2/ja
Priority to EP09827637.1A priority patent/EP2359966B1/fr
Priority to US13/130,545 priority patent/US8251618B2/en
Publication of WO2010058856A1 publication Critical patent/WO2010058856A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/141—Specially shaped plate-like cutting inserts, i.e. length greater or equal to width, width greater than or equal to thickness
    • B23B27/143—Specially shaped plate-like cutting inserts, i.e. length greater or equal to width, width greater than or equal to thickness characterised by having chip-breakers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/08—Rake or top surfaces
    • B23B2200/085—Rake or top surfaces discontinuous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/20—Top or side views of the cutting edge
    • B23B2200/201—Details of the nose radius and immediately surrounding area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/32—Chip breaking or chip evacuation
    • B23B2200/321—Chip breaking or chip evacuation by chip breaking projections
    • 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
    • Y10T407/00—Cutters, for shaping
    • Y10T407/23—Cutters, for shaping including tool having plural alternatively usable cutting edges
    • Y10T407/235—Cutters, for shaping including tool having plural alternatively usable cutting edges with integral chip breaker, guide or deflector
    • 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
    • Y10T407/00—Cutters, for shaping
    • Y10T407/24—Cutters, for shaping with chip breaker, guide or deflector

Definitions

  • the present invention relates to a cutting insert, a cutting tool, and a cutting method using the same.
  • a cutting tool for processing a work material such as a metal includes, for example, a holder and a cutting insert attached to the holder.
  • the cutting insert disclosed in Patent Document 1 has a corner blade positioned between two sides constituting the upper surface thereof, and includes a first breaker wall and a second breaker wall inside thereof.
  • the first breaker wall is disposed in the vicinity of the corner blade, and is inclined upward as it goes inward from the corner blade.
  • the second breaker wall is located inward and upward from the first breaker wall, and is inclined upward as it goes inward from the corner blade.
  • the 1st flat surface is provided between the 1st breaker wall and the 2nd breaker wall, and the intersection part of a 1st breaker wall and a 1st flat surface goes away from a corner blade. Inclined upward.
  • a cutting insert includes an insert body having an upper surface, a lower surface, and a side surface intersecting with the upper surface and the lower surface, A corner cutting edge located at a corner of the first side and the second side constituting the upper face, and a first cutting edge located at the first side, located at an intersection of the upper surface and the side surface; A cutting edge having, A rake face located along the cutting edge on the upper surface; A projection located on the upper surface, inward from the rake face, The protrusion is A first surface inclined upward as it goes inward from the cutting edge; A second surface that is higher than the first surface and is positioned inward with respect to the corner cutting edge as compared to the first surface, and is inclined upward as it goes inward from the cutting edge; A third surface located between the first surface and the second surface; The intersection between the first surface and the third surface is inclined downward as the distance from the corner cutting edge increases.
  • a cutting tool includes the cutting insert described above and a holder on which the cutting insert is mounted.
  • a cutting method includes a step of rotating a work material and a step of bringing the cutting blade of the cutting tool into contact with the surface of the rotated work material.
  • the cutting insert and the cutting tool according to the embodiment of the present invention can exhibit excellent chip discharging performance under a wide range of cutting conditions.
  • FIG. 1 is an overall perspective view of a cutting insert 1 according to a first embodiment of the present invention. It is the (a) top view of the insert 1, (b) It is a side view. It is a principal part enlarged view of FIG. It is a principal part enlarged view of Fig.2 (a).
  • FIG. 2A is a cross-sectional view taken along the line AA of FIG. 2A, and FIG. It is a whole perspective view of cutting insert 1 'of a 2nd embodiment concerning the present invention. It is (a) top view and (b) side view of insert 1 '. It is a principal part enlarged view of FIG.
  • FIG. 6A is a sectional view taken along line AA
  • FIG. 6B is a sectional view taken along line BB
  • FIG. 7C is a sectional view taken along line CC.
  • 1 is an overall perspective view of a cutting tool 11 according to an embodiment of the present invention. It is the (a) top view of the cutting tool 11, (b) It is a side view.
  • (A)-(c) is process drawing which shows the cutting method of one Embodiment of this invention.
  • insert 1 The cutting insert 1 (hereinafter abbreviated as “insert 1”) according to the first embodiment of the present invention will be described in detail with reference to FIGS.
  • FIG. 1 is an overall perspective view of the insert 1 according to the present embodiment
  • FIG. 2 is a (a) top view and (b) a side view of the insert 1.
  • 3 is an enlarged view of the main part of FIG. 1
  • FIG. 4 is an enlarged view of the main part of FIG. 2 (a)
  • FIG. 5 is a cross-sectional view taken along the line AA in FIG.
  • FIG. 4B is a cross-sectional view taken along the line BB.
  • the insert 1 has an upper surface 2, a lower surface 3 corresponding to the upper surface 2, and a side surface 4 disposed between the upper surface 2 and the lower surface 3.
  • the upper surface 2 includes a corner portion 21 and a first side 22 disposed on one end side of the corner portion 21.
  • the upper surface 2 is substantially rhombus.
  • the insert 1 also has a cutting edge 6, a rake face 5, and a protrusion 7.
  • the cutting edge 6 is formed along at least the corner portion 21 and the first side 22.
  • the cutting blades 6 are respectively formed along two corner portions 21 forming an acute angle among the four corner portions of the upper surface 2.
  • the insert 1 has two cutting edges 6 and is an insert having a specification that uses so-called two corners for cutting.
  • the cutting edge 6 is formed to be substantially parallel to the lower surface 3 as shown in FIG.
  • the cutting edge 6 is substantially parallel to the lower surface 3, the strength of the cutting edge 6 can be maintained high, so that the cutting edge 6 can be prevented from being damaged.
  • the cutting edge 6 is not limited to the configuration shown in the present embodiment, and may be inclined so as to approach the lower surface 3 as the distance from the corner portion 21 increases, for example. Inclining so as to approach the lower surface 3 is synonymous with inclining downward. The same applies to the following unless otherwise specified.
  • the rake face 5 is provided in an area located on the inner side of the cutting edge 6 in the upper face 2. Further, the rake face 5 is provided along at least the corner portion 21 and the first side 22. The protrusion 7 is provided in a region of the upper surface 2 that is located inward of the rake surface 5.
  • the projection part 7 has the 1st surface 71, the 2nd surface 72, and the 3rd surface 73, as shown in FIG. 1 thru
  • the first surface 71 is disposed in the vicinity of the corner portion 21, and is inclined so as to move away from the lower surface 3 as it goes inward from the cutting edge 6. .
  • Inclining away from the lower surface 3 is synonymous with inclining upward. The same applies to the following unless otherwise specified.
  • the second surface 72 is positioned higher than the first surface 71 and inward from the first surface 71 with respect to the corner cutting edge 61.
  • the second surface 72 is inclined upward as it goes inward from the cutting edge 6, that is, as it goes away from the lower surface 3 as it goes inward from the cutting edge 6.
  • being positioned at a high level means being at a high position in a direction substantially perpendicular to the lower surface 3 with respect to the lower surface 3. Further, inward refers to a direction toward the center of the upper surface 2 with respect to the cutting edge 6.
  • the third surface 73 is provided between the first surface 71 and the second surface 72 as shown in FIGS. 3, 4, and 5 (a).
  • the crossing part X of the 1st surface 71 and the 3rd surface 73 inclines so that it may approach the lower surface 3 along the cutting blade 6 so that it is far from the corner cutting blade 61.
  • FIG. in other words, in the present embodiment, the highest portion of the first surface 71 is inclined so as to approach the lower surface 3 as the distance from the corner portion 21 increases.
  • chips generated during the low cutting process are stably curled by the first surface 71 located in the vicinity of the corner portion 21.
  • chips generated during the high cutting process have a small curling action received from the first surface 71 located in the vicinity of the first cutting edge 62 and are stably curled by the second surface 72.
  • the ratio of the first surface 71 in the action of curling the generated chips decreases and the ratio of the second surface 72 increases. In this way, even during the low cutting process and the high cutting process, the chips can be stably curled and finely divided, so that the chips can be discharged smoothly. Therefore, the insert 1 in the present embodiment can exhibit excellent chip discharging performance under a wide range of cutting conditions.
  • the third surface 73 is provided along the corner portion 21 and the first side 22, and the region 731 corresponding to the corner portion 21 and the region 732 corresponding to the first side 22. And the region 731 and the region 732 may be separated.
  • the intersecting portion X is inclined so as to approach the lower surface 3 as the distance from the corner portion 21 increases.
  • the insert 1 of the present embodiment has the following configuration.
  • FIG. 5A is a cross-sectional view taken along the line AA of FIG. 2A. Specifically, it passes through the equiangular bisector M of the first side 22 and the second side 23 and is substantially on the lower surface 3. It is a figure which shows a vertical cross section.
  • the third surface 73 is inclined so as to approach the lower surface 3 as it goes inward from the corner cutting edge 61 in a region corresponding to the corner portion.
  • the insert 1 can exhibit excellent chip discharging properties under a wide range of cutting conditions even in the region corresponding to the corner portion.
  • the third surface 73 is a flat surface. Specifically, as shown in FIG. 5A, the third surface 73 is an inclined plane that is inclined along the equiangular bisector M of the first side 22 and the second side 23. That is, as shown in FIG. 5A, the inclination angle ⁇ 73 is inclined so as to approach the lower surface 3 as it goes inward from the corner portion 21.
  • the third surface 73 is not limited to the inclined plane approaching the lower surface 3 as described above, and may be a plane substantially parallel to the lower surface 3.
  • the third surface 73 may be a concave curved surface that is inclined so as to approach the lower surface 3 as it goes inward from the intersection X.
  • the second surface 72 has a first inclined surface 721 and a second inclined surface 722 in a region corresponding to the corner portion 21, as shown in FIGS. .
  • the first slope 721 is located on the corner portion 21 side and is inclined so as to move away from the lower surface 3 as it goes inward from the cutting edge 6.
  • the second slope 722 is located inward of the first slope 721 and is inclined away from the lower surface 3 as it goes inward from the cutting edge 6.
  • the inclination angle ⁇ 721 of the first inclined surface 721 with respect to the lower surface 3 is larger than the inclination angle ⁇ 722 of the second inclined surface 722 with respect to the lower surface 3.
  • both the inclination angles ⁇ 721 and ⁇ 722 refer to respective inclination angles in a cross section that passes through the equiangular bisector M of the first side 22 and the second side 23 and is substantially perpendicular to the lower surface 3.
  • the generated chips are curled stably by the first inclined surface 721 of the second surface 72 when riding on the first surface 71 under cutting conditions with a low depth of cut and a large feed amount.
  • the time of high cutting processing it is possible to reduce the impact at the time of colliding with a region (first slope 721 and second slope 722) corresponding to the corner portion 21 of the second surface 72.
  • the first inclined surface 721 and the second inclined surface 722 have the above-described relationship between the inclination angles, and as shown in FIGS. 2 (a) and 4, the first side in the top view.
  • the length L721 of the first slope 721 in the direction along the equiangular bisector M of the 22 and the second side 23 is set smaller than the length L722 of the second slope 722.
  • Such a configuration further enhances the above-described effects.
  • the breaker function at the time of low cutting can be kept high.
  • the relationship of ⁇ 721> ⁇ 722 and L721 ⁇ L722 is satisfied, but the first inclined surface 721 and the second inclined surface 722 may be set so as to satisfy only the relationship of ⁇ 721> ⁇ 722.
  • the intersection Z between the third surface 73 and the second surface 72 is an equiangular bisection of the first side 22 and the second side 23 in a top view. It is substantially perpendicular to the line M.
  • the chips generated under the cutting conditions with a low depth of cut and a large feed amount are generated along the equiangular bisector M, and are stable on the front surface (first slope 721) of the second surface 72. Can touch. Therefore, the chips can be finely divided by curling the second surface 72 stably.
  • the first surface 71 is provided so as to approach the cutting edge 6 as it moves away from the corner portion 21 in a top view.
  • the 1st surface 71 should just have the area
  • This region is a region along the first side 22 of the first surface 71.
  • the distance X1 between the cutting edge 6 located on the far side from the corner portion 21 and the first surface 71 is the cutting edge 6 located on the corner portion 21 side and the first surface 71. Is smaller than the distance X2.
  • the distances X1 and X2 here are distances in a direction substantially perpendicular to the cutting edge 6.
  • the height of the highest portion of the first surface 71 may be 1/3 or less of the height of the highest portion of the second surface 72. preferable. With such a configuration, it is possible to suitably combine the breaker action at the time of low depth cutting obtained by the first surface 71 and the effect of finely dividing the chips at the time of high feed machining obtained by the second surface.
  • the highest portions of the first surface 71 and the second surface 72 referred to here are the portions positioned highest in the height direction.
  • the highest portions of the first surface 71 and the second surface 72 are both portions located on the equiangular bisector M of the first side 22 and the second side 23.
  • the height refers to a dimension in a direction substantially perpendicular to the lower surface 3 with respect to the intersection of the first rake face 51 and the first face 71.
  • the second surface 72 is provided to extend to a position farther from the corner portion 21 than the first surface 71 and the third surface 73.
  • the rake face 5 is located inward of the first rake face 51 provided on the cutting edge 6 side and the first rake face 51. And a second rake face 52.
  • the first rake face 51 is provided along the corner portion 21 and the first side 22.
  • the second rake face 52 is provided along the first side 22. Further, the second rake face 52 is provided between the first rake face 51 and the second face 72.
  • the first surface 71 of the protrusion 7 is disposed from the cutting edge 6 through only the first rake surface 51. That is, the first surface 71 is provided close to the cutting edge 6 so as to be in contact with the first rake surface 51.
  • the second surface 72 is arranged from the cutting edge 6 through the second rake face 52 as well as the first rake face 71 in a region away from the corner portion 21.
  • the generated chips are curled stably by the second rake face 5 first, and then more stably curled by the second face 72 at the time of high cutting. Since the chips curled in two stages in this way are stably and finely divided, they are discharged smoothly.
  • the angle ⁇ formed by the intersection Y between the third surface 73 and the second rake surface 52 and the first side 22 in the top view is 90 degrees or less. It is desirable that
  • the angle ⁇ is approximately 90 degrees.
  • the first surface 71 functions to curl chips during low cutting
  • the second surface 72 functions to curl chips during high cutting.
  • the insert 1 since the insert 1 has the protrusions 7 that function under the corresponding cutting conditions of the first surface 71 and the second surface 72, the chips generated during the low cutting process and the chips generated during the high cutting process. And the effect of curling both of them stably increases.
  • the inclination angle ⁇ 51 of the first rake face 51 with respect to the lower surface 3 is constant along the cutting edge 6.
  • a line substantially parallel to the lower surface 3 is indicated by a dotted line, and ⁇ 51 is an angle formed by the dotted line and the first rake face 51.
  • the second rake face 52 is substantially parallel to the lower face 3.
  • the end portion on the corner 21 side of the first surface 71 has a substantially arc shape.
  • the radius of curvature R73 at the end of the first surface 71 on the corner 21 side is larger than the radius of curvature R21 of the corner 21.
  • the insert 1 of this embodiment is a so-called positive type insert having a positive clearance angle.
  • the region other than the flat surface 41 of the side surface 4 is inclined so as to be located inward as it goes from the upper surface 2 to the lower surface 3.
  • the side surface 4 has a flat surface 41 in a region corresponding to the corner portion 21.
  • the flat surface 41 is provided close to the corner portion 21.
  • the flat surface 41 is inclined so as to be located outward from the upper surface 2 toward the lower surface 3.
  • the region along the first side 22 in the second surface 72 is arranged so as to move away from the first side 22 as the distance from the corner portion 21 increases.
  • the dimension of the third surface 73 in the direction substantially perpendicular to the first side 22 in the top view increases as the distance from the corner portion 21 increases. is doing.
  • the cutting blade 6 is substantially parallel to the lower surface 3 and is inclined so as to approach the lower surface 3 as the intersecting portion X moves away from the corner cutting blade 61.
  • the dimension of the first surface 71 in the direction substantially perpendicular to the first side 22 in the top view decreases as the distance from the corner portion 21 increases. is doing.
  • FIG. 6 is an overall perspective view of the insert 1 ′
  • FIG. 7 is a plan view of the insert 1 ′
  • FIG. 8 is an enlarged view of a main part of FIG. 1
  • FIG. 9 is a cross-sectional view of (a) AA in FIG. 2A, (b) a cross-sectional view of BB, and (c) a cross-sectional view of CC. .
  • the third surface 73 is provided along the corner portion 21 and the first side 22, and corresponds to the region corresponding to the corner portion 21 and the first side 22.
  • the area is continuously provided. That is, the third surface 73 is provided along the region corresponding to the first side 22 as well as the region corresponding to the corner portion 21 of the upper surface 2. Therefore, the crossing portion X is inclined downward as it goes away from the corner cutting edge as described above, and the inclination extends to a region corresponding to the first side 22 in the upper surface 2.
  • the 3rd surface 73 is comprised by one continuous surface. That is, the third surface 73 extends in the longitudinal direction of the cutting edge 6, and there is no region that is interrupted in the direction along the cutting edge 6.
  • the intersecting ridge portion of the second surface 72 between the first slope 721 and the region along the first side 22 is disposed away from the cutting edge 6.
  • the intersecting ridge portion of the second surface 72 between the first slope 721 and the region along the first side 22 is disposed away from the cutting edge 6.
  • the generated chips can be stably curled and discharged smoothly not only at the time of low cutting processing but also at the time of medium cutting processing.
  • cutting resistance can be reduced even during high cutting.
  • the region corresponding to the corner portion 21 of the third surface 73 includes a first slope 731 located on the corner portion 21 side, and the first slope 731. And a second slope 732 positioned inward.
  • the first slope 731 extends along a direction substantially perpendicular to the equiangular bisector M of the first side 22 and the second side 23. It is provided as follows. In other words, the upper end of the first slope 731 is a dimension in a substantially perpendicular direction of the equiangular bisector M of the first side 22 and the second side 23 as compared to the upper end of the first slope 731 in the first embodiment. Is big.
  • the chips generated along the equiangular bisector M of the first side 22 and the second side 23 under a cutting condition with a low depth of cut and a large feed amount are more stably third.
  • the surface 73 can curl.
  • the third surface 73 has a lower surface as the distance from the corner portion 21 increases along the equiangular bisector M of the first side 22 and the second side 23. 3 is inclined so as to approach 3.
  • the third surface 73 is illustrated as being provided along the corner portion 21 and the first side 22, but not limited thereto, the third surface 73 is at least on the corner portion 21. What is necessary is just to be arrange
  • an insert having a positive clearance angle i.e., a so-called positive type insert has been illustrated.
  • the present invention is not limited to this. Also good.
  • the crossing portion X of the insert inclines so as to approach the reference surface 14 of the holder 12 as it moves away from the corner portion 21 in a state of being attached to the holder 12.
  • the upper surface 3 illustrated the form which makes a substantially rhombus, it is not restricted to this. As long as the shape has the corner portion 21 and the first side 22, the upper surface 3 may have another substantially polygonal shape such as a substantially triangular shape.
  • the corner portion 21 side end portion of the first surface 71 is exemplified as a circular arc shape when viewed from above, but is not limited thereto.
  • the corner portion 21 side end portion of the first surface 71 may have a linear shape.
  • first surface 71, the second surface 72, and the third surface 73 in the direction substantially perpendicular to the cutting edge 6 are not limited to the values shown in the present embodiment, and can be selected as appropriate.
  • FIG. 10 is an overall perspective view of the cutting tool 11, and FIG. 11 is a (a) plan view and (b) a side view of the cutting tool 11.
  • FIG. 11 is a (a) plan view and (b) a side view of the cutting tool 11.
  • the cutting tool 11 includes a holder 12 and the insert 1 described above.
  • the holder 12 has an insert pocket 13 at the tip.
  • the insert pocket 13 is open to the upper surface, one side surface, and the front end surface of the holder 12.
  • the insert 1 is mounted in the insert pocket 13 so that the cutting edge 6 protrudes from the outer peripheral portion of the holder 12.
  • the corner portion 21 of the insert 1 is disposed on the tip end side and one side surface side of the holder 12.
  • the first side 22 of the insert 1 is arranged along one side surface of the holder 12.
  • the insert 1 is screwed to the holder 12 by a fixing screw 16.
  • the insert 1 has a through hole 15 penetrating from the center of the upper surface 2 to the center of the lower surface 3.
  • the insert pocket 13 of the holder 12 has a screw hole.
  • the insert 1 is attached to the insert pocket 13 of the holder 12 by a fixing screw 16 inserted through the through hole and screwed into the screw hole.
  • the insert 1 is a positive type, and the lower surface 3 is arranged to be parallel to the reference surface 14 of the holder 12 as shown in FIG. ing.
  • the reference surface 14 of the holder 12 referred to here is provided in a gripping part gripped by an external device.
  • the reference surface 14 of the holder 12 is one side surface of the gripping portion as shown in FIGS.
  • the cutting tool 11 includes the insert 1 described above, it can exhibit excellent chip dischargeability under a wide range of cutting conditions.
  • chips can be finely divided. For this reason, it is possible to prevent the chips from being entangled with the holder 12 without being curled. Therefore, the processing accuracy is high and the cutting edge can be prevented from being broken. As a result, the tool life is increased.
  • the cutting method of the work material of this embodiment has the following steps (I) to (IV).
  • the cutting tool 11 in which the work material 120 and the holder 1 are attached with the insert 1 is prepared. Then, as shown in FIG. 12A, the work material 120 is rotated around the axis 121 of the work material 120. Further, the cutting edge 6 of the cutting tool 11 is brought closer to the work material 120 (in the direction of arrow A in FIG. 12A).
  • the cutting blade 6 and the work material 120 may be relatively close to each other. For example, the work material 120 may be close to the cutting tool 11.
  • the work material 120 is cut while the cutting blade 6 is brought into contact with the work material 120 and the cutting tool 11 is moved in the arrow B direction.
  • the insert 1 attached to the cutting tool 11 has the protrusion 7 having the first surface 71, the second surface 72, and the third surface 73 as described above, and the intersecting portion X is the corner portion 21. It is inclined so as to approach the lower surface 3 as it moves away. Therefore, the generated chips can be stably curled by the first surface 71 and the second surface 72 of the protrusion 7 and discharged smoothly. In particular, in both of the low cutting process and the high cutting process, the generated chips can be stably curled and finely divided, and the chips can be discharged smoothly.
  • the cutting tool 11 is separated from the work material 120 in the direction of arrow C.
  • the work material 120 and the cutting tool 11 need only be relatively distant from each other.
  • the work material 120 may be kept away from the cutting tool 11.
  • the steps have been described separately in the above (I) to (IV), but in order to obtain the above-described effect in the present embodiment, the step of rotating the work material 120, And a step of bringing the cutting edge 6 of the cutting tool 1 into contact with the surface of the rotated work material 120.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

L'invention concerne une plaquette (1) dotée d’un corps de plaquette présentant une surface supérieure (2), une surface inférieure (3) et des surfaces latérales (4) coupant la surface supérieure (2) et la surface inférieure (3) ; une arête (6) de coupe située aux intersections entre la surface supérieure (2) et les surfaces latérales (4) et dotée d’une arête (61) de coupe d’angle située à l’angle (21) entre une première face (22) et une deuxième face (23) qui forment la surface supérieure (2), ainsi que d’une première arête (62) de coupe située sur la première face (22) ; une face (5) de coupe située sur la surface supérieure (2) de façon à longer l’arête (6) de coupe ; et une protubérance (7) située sur la surface supérieure (2) à un emplacement en-deçà des faces (5) de coupe. La protubérance (7) comporte une première surface (71) inclinée vers le haut à mesure que la première surface s’étend vers l’intérieur à partir de l’arête (6) de coupe, une deuxième surface (72) située à un emplacement plus élevé que la position de la première surface (71) et en-deçà de la première surface (71) par rapport à l’arête (6) de coupe et inclinée vers le haut à mesure que la deuxième surface s’étend vers l’intérieur à partir de l’arête (6) de coupe, et une troisième surface (73) située entre la première surface (71) et la deuxième surface (72). L’intersection (X) entre la première surface (71) et la troisième surface (73) est inclinée vers le bas à mesure que l’intersection s’éloigne de l’arête (61) de coupe d’angle.
PCT/JP2009/069809 2008-11-21 2009-11-24 Plaquette de coupe, outil de coupe et procédé de coupe utilisant l’outil de coupe WO2010058856A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN2009801465925A CN102223975B (zh) 2008-11-21 2009-11-24 切削镶刀及切削工具、以及使用该切削工具的切削方法
JP2010511437A JP4597269B2 (ja) 2008-11-21 2009-11-24 切削インサートおよび切削工具並びにそれを用いた切削方法
EP09827637.1A EP2359966B1 (fr) 2008-11-21 2009-11-24 Plaquette de coupe, outil de coupe et procédé de coupe utilisant l outil de coupe
US13/130,545 US8251618B2 (en) 2008-11-21 2009-11-24 Cutting insert, cutting tool, and cutting method using cutting tool

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JP6306433B2 (ja) * 2014-05-23 2018-04-04 京セラ株式会社 切削インサート、切削工具および切削加工物の製造方法
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JP6853240B2 (ja) * 2016-04-25 2021-03-31 京セラ株式会社 切削工具
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US9666922B2 (en) 2013-02-26 2017-05-30 Kyocera Corporation Dielectric filter, duplexer, and communication device
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US9597733B2 (en) 2013-02-27 2017-03-21 Kyocera Corporation Cutting insert, cutting tool, and method of producing machined product
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EP2359966B1 (fr) 2017-06-14
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JP4597269B2 (ja) 2010-12-15
JP2010149280A (ja) 2010-07-08
JPWO2010058856A1 (ja) 2012-04-19
US20110229279A1 (en) 2011-09-22
JP5517700B2 (ja) 2014-06-11
EP2359966A1 (fr) 2011-08-24
CN102223975B (zh) 2013-03-27
US8251618B2 (en) 2012-08-28

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