WO2012086375A1 - 切削工具およびそれを用いた切削加工物の製造方法 - Google Patents
切削工具およびそれを用いた切削加工物の製造方法 Download PDFInfo
- Publication number
- WO2012086375A1 WO2012086375A1 PCT/JP2011/077562 JP2011077562W WO2012086375A1 WO 2012086375 A1 WO2012086375 A1 WO 2012086375A1 JP 2011077562 W JP2011077562 W JP 2011077562W WO 2012086375 A1 WO2012086375 A1 WO 2012086375A1
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- WIPO (PCT)
- Prior art keywords
- convex
- cutting tool
- uneven surface
- concave
- cutting
- Prior art date
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Classifications
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- 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
- B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
- B23B27/1603—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with specially shaped plate-like exchangeable cutting inserts, e.g. chip-breaking groove
- B23B27/1611—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with specially shaped plate-like exchangeable cutting inserts, e.g. chip-breaking groove characterised by having a special shape
-
- 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
- B23B27/04—Cutting-off tools
-
- 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
- B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/04—Tool holders for a single cutting tool
- B23B29/043—Tool holders for a single cutting tool with cutting-off, grooving or profile cutting tools, i.e. blade- or disc-like main cutting parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/16—Supporting or bottom surfaces
- B23B2200/167—Supporting or bottom surfaces with serrations
-
- 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
- B23B2205/00—Fixation of cutting inserts in holders
- B23B2205/12—Seats for cutting inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2220/00—Details of turning, boring or drilling processes
- B23B2220/12—Grooving
- B23B2220/126—Producing ring grooves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2260/00—Details of constructional elements
- B23B2260/132—Serrations
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- 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
- Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
- Y10T407/2272—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder
- Y10T407/2282—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder including tool holding clamp and clamp actuator
-
- 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
- Y10T82/00—Turning
- Y10T82/10—Process of turning
Definitions
- the present invention relates to a cutting tool and a method of manufacturing a cut product using the cutting tool.
- Japanese Patent Application Laid-Open No. 2004-223651 discloses a cutting tool in which a cutting insert and a holder are engaged by a plurality of irregularities. With this shape, the displacement of the cutting insert due to stress from the left and right direction of the cutting insert is suppressed.
- One of the problems of the present invention is that the cutting insert is difficult to be displaced during cutting, and a throw-away type cutting tool suitable for end face grooving in addition to parting off and grooving, and cutting using the same It is to provide a method for manufacturing a product.
- a cutting tool includes a cutting insert having an upper surface, a lower surface, and a cutting edge positioned on at least a part of the upper surface, and the cutting insert is disposed on a top end portion in a longitudinal direction. And a holder having an upper jaw and a lower jaw fixed from the lower surface. At least one of the upper contact portion between the upper surface of the cutting insert and the upper jaw portion of the holder and the lower contact portion between the lower surface of the cutting insert and the lower jaw portion of the holder has a first uneven surface and a second surface. Has an uneven surface.
- the first uneven surface includes a plurality of first protrusions and at least one first recess extending along the longitudinal direction of the holder.
- the second concavo-convex surface includes a plurality of second concave portions positioned corresponding to the plurality of first convex portions and at least one second convex portion positioned corresponding to the at least one first concave portion.
- the distance d1 between the tops of the first convex portions adjacent to each other among the plurality of first convex portions of the first concave-convex surface is the first convex portion adjacent to the first convex portion. It is smaller than the distance d2 between the bottom parts of the adjacent second recesses among the plurality of second recesses of the second uneven surface located corresponding to the part.
- the manufacturing method of the cut workpiece according to the embodiment of the present invention includes a step of rotating a work material, and a step of bringing the rotating work material into contact with the cutting blade of the cutting tool according to the above-described embodiment. And a step of separating the work material and the cutting tool.
- the distance d1 between the tops of the adjacent first protrusions among the plurality of first protrusions of the first uneven surface is:
- the distance d2 between the bottoms of the adjacent second recesses among the plurality of second recesses of the second uneven surface positioned corresponding to the adjacent first protrusions is smaller.
- the cutting insert can be guided to an appropriate mounting state, and the reproducibility of mounting of the cutting insert can be improved.
- the displacement of the cutting insert with respect to the left-right direction can be suppressed by the excellent mounting stability between the concave portion and the convex portion in the contact portion.
- FIG. 1 It is a perspective view which shows the cutting tool which concerns on 1st Embodiment of this invention. It is a partial side view which shows the front-end
- the cutting tool according to an embodiment of the present invention can be used for any of an inner diameter grooving process, an outer diameter grooving process, a parting process, and an end face grooving process.
- an inner diameter grooving process an outer diameter grooving process
- a parting process a parting process
- an end face grooving process a case where the cutting tool according to the embodiment of the present invention is used for end face grooving will be described as an example.
- the cutting tool 20 of the present embodiment has a substantially prismatic shape, and a cutting insert (hereinafter sometimes referred to as “insert”) 1 and the insert 1 are fixed to the tip.
- the holder 100 is provided.
- the insert 1 has an upper surface 2 and a lower surface 3 and a cutting edge 5 located on at least a part of the upper surface 2 as shown in FIG.
- the holder 100 has an upper jaw portion 101 and a lower jaw portion 102 that fix the insert 1 from the upper surface 2 and the lower surface 3 at the distal end portion in the longitudinal direction indicated by the arrow a. ing.
- the insert 1 is fixed to the holder 100 so that the cutting edge 5 protrudes from the tip of the holder 100.
- the holder 100 is preferably set to have a length in the longitudinal direction of 143 to 162 mm and a length in the width direction of 29 to 42 mm, for example.
- the cutting tool 20 includes an upper contact portion 21 a composed of an upper surface 2 of the insert 1 and a surface facing the upper jaw portion 101 of the holder 100, a lower surface 3 of the insert 1, and a holder. 100 and a lower contact portion 21b constituted by a surface facing the lower jaw portion 102, whereby the insert 1 is fixed to the holder 100. Moreover, since the upper contact part 21a and the lower contact part 21b are located above and below the insert 1, the insert 1 can be reliably fixed.
- a contact part shall mean the site
- At least one of the upper contact portion 21a and the lower contact portion 21b has a first uneven surface 22 and a second uneven surface 23 as shown in FIGS.
- the first uneven surface 22 has a plurality of first protrusions 221 and at least one first recess 222 extending along the longitudinal direction of the holder 100.
- the second uneven surface 23 has at least one first concave portion 232 positioned corresponding to the multiple first convex portions 221 and at least one first concave portion 232 positioned corresponding to the at least one first concave portion 222.
- Two convex portions 231 are provided. Thereby, the rotation by the moment which the insert 1 receives in the left-right direction can be suppressed.
- the length in the longitudinal direction of the facing surfaces is preferably set to 6 to 9 mm at the upper contact portion 21a, 16 mm at the lower contact portion 21b, and 1 to 10 mm in the width direction.
- the lower contact portion 21b is more susceptible to a cutting load during cutting than the upper contact portion 21a. Therefore, it is preferable that at least the lower contact portion 21 b has the first uneven surface 22 and the second uneven surface 23.
- both the upper contact portion 21a and the lower contact portion 21b have a first uneven surface 22 and a second uneven surface 23, as shown in FIGS. According to this structure, the rotation by the moment which the insert 1 receives in the left-right direction can be suppressed at a plurality of locations of the upper contact portion 21a and the lower contact portion 21b.
- the “concave surface” refers to a difference between the top of the convex portion and the bottom portion of the concave portion between adjacent concave portions and convex portions, for example, 0.1 to 0. It suffices if it is in the range of 25 mm.
- the upper contact portion 21 a includes a first uneven surface 22 on the upper jaw portion 101 of the holder 100 and a second uneven surface 23 on the upper surface 2 of the insert 1.
- the first uneven surface 22 has two first convex portions 221 and three first concave portions 222.
- the second uneven surface 23 has three second convex portions 231 and two second concave portions 232.
- the concave and convex portions on the respective concave and convex surfaces are defined as follows. As shown in FIG.
- the first convex portion 221 is set to 221A and 221B and the first concave portion 222 is set to 222A, 222B and 222C in order from the left with respect to the paper surface.
- the second convex portion 231 is 231A, 231B, 231C and the second concave portion 232 is 232A, 232B in order from the left with respect to the paper surface.
- the 1st convex part 221 and the 2nd convex part 232, and the 1st concave part 222 and the 2nd convex part 231 are located corresponding, respectively. Specifically, as shown in FIG.
- 221A and 232A, 221B and 232B, 222A and 231A, 222B and 231B, and 222C and 231C are located corresponding to each other.
- the top portion 221 Au of the first convex portion 221 ⁇ / b> A on the first concave / convex surface 22 of the upper jaw portion 101 of the holder 100 is the second on the upper surface 2 of the insert 1. It means that it is located in the range of the 2nd crevice 232A in uneven surface 23.
- the top part 221Au of the first convex part 221A is located within the range from the top part 231Au of the second convex part 231A located on both sides of the second concave part 232A to the top part 231Bu of the second convex part 231B. ing.
- the lower contact portion 21 b includes a first uneven surface 22 on the lower jaw portion 102 and a second uneven surface 23 on the lower surface 3.
- the first uneven surface 22 has two first convex portions 221 and three first concave portions 222.
- the second uneven surface 23 has three second convex portions 231 and two second concave portions 232.
- the concave and convex portions on the respective concave and convex surfaces are defined as follows. As shown in FIG. 5A, in the first uneven surface 22, the first convex portion 221 is set to 221A and 221B and the first concave portion 222 is set to 222A, 222B and 222C in order from the left with respect to the paper surface.
- the second convex portion 231 is 231A, 231B, 231C and the second concave portion 232 is 232A, 232B in order from the left with respect to the paper surface.
- the 1st convex part 221 and the 2nd convex part 232, and the 1st concave part 222 and the 2nd convex part 231 are located corresponding, respectively.
- 221A and 232A, 221B and 232B, 222A and 231A, 222B and 231B, and 222C and 231C are located corresponding to each other.
- the same shape may be sufficient as the upper contact part 21a and the lower contact part 21b, and a different shape may be sufficient as it.
- the upper contact portion 21 a and the lower contact portion 21 b may have similar shapes, or the number of irregularities in the upper contact portion 21 a and the lower contact portion 21 b.
- the shape of the unevenness may be different.
- the force that suppresses rotation due to the moment received in the left-right direction of the insert 1 can be made equal between the upper contact portion 21a and the lower contact portion 21b.
- the first uneven surface 22 and the second uneven surface 23 will be described by taking the upper contact portion 21a as an example.
- the insert 1 and the holder 100 are restrained when the first convex portion 221 and the second concave portion 232 or the first concave portion 222 and the second convex portion 231 come into contact with each other. It is sufficient that at least one set is in contact with the first convex portion 221 and the second concave portion 232 and the first concave portion 222 and the second convex portion 231. In the present embodiment, as shown in FIG. 4B, the first concave portion 222B and the second convex portion 231B are in contact with each other and restrained.
- the distance between the tops of the adjacent first convex portions 221 among the plurality of first convex portions 221 of the first uneven surface 22 corresponds to the adjacent first convex portions 221. It is smaller than the distance between the bottom parts of the adjacent 2nd recessed part 232 among the several 2nd recessed parts 232 of the 2nd uneven surface 23 located.
- the distance between the top portions 221Au and 221Bu of the first convex portions 221A and 221B adjacent to the first concave and convex surface 22 is d1, and the second convex and concave surface 23 is adjacent.
- a gap is generated between the first uneven surface 22 and the second uneven surface 23. That is, as shown in FIG. 4B, in a state where the upper jaw portion 101 and the upper surface 2 are pressed, the distance between the first protrusions 221 is smaller than the distance between the second recesses 232, and the first protrusion A pair of gaps V is generated between the portion 221 and the second recess 232. Therefore, the upper contact portion 21a is easily elastically deformed, the insert 1 can be guided to an appropriate attachment state, and the insert 1 can be attached at an accurate position.
- the force applied in the left-right direction of the insert 1 can be received by the concave portion and the convex portion, and the displacement of the insert 1 in the left-right direction can be suppressed.
- one or more gaps may be provided in other portions as long as the upper contact portion 21a is provided.
- gap shall mean the part which has a distance between a certain recessed part and the convex part located corresponding to this recessed part.
- a top part shall mean the site
- the bottom portion means a portion where the amount of dent is the largest in each concave portion of the concavo-convex surface.
- the section where the maximum value continues may be the top or bottom.
- the distance between a certain concave portion and the convex portion positioned corresponding to this concave portion may be measured with reference to the midpoint of the continuous section having the maximum value.
- the distance d1 is not less than 1/2 of the width w1 of the first uneven surface 22, and the distance d2 is 1/2 of the width w2 of the second uneven surface 23. That's it. That is, d1 ⁇ (1/2) ⁇ w1 and d2 ⁇ (1/2) ⁇ w2.
- d1 is in the range of 0.55 ⁇ w1 to 0.6 ⁇ w1
- d2 is in the range of 0.58 ⁇ w2 to 0.65 ⁇ w2.
- w1 is preferably set to 1.8 to 5.0 mm
- w2 is preferably set to 2.1 to 5.0 mm
- w1 in the upper contact portion 21a shown in FIG. 4 and w1 in the lower contact portion 21b shown in FIG. 5 may be the same value or different values.
- w1 in the lower contact portion 21b may be set smaller than w1 in the upper contact portion 21a in consideration of the processing diameter.
- the unevenness of the first uneven surface 22 and the second uneven surface 23 has a specific positional relationship with reference to the reference line L.
- the reference line L is a line defined in a cross-sectional view of the upper contact portion 21a, that is, a cross-sectional view perpendicular to the longitudinal direction of the holder 100.
- the upper jaw portion 101 and the lower jaw portion 102 protrude in parallel with the longitudinal direction of the holder 100. Therefore, the reference line L is a line defined in a cross-sectional view in a direction indicated by an arrow b that is perpendicular to the longitudinal direction of the holder 100 and parallel to the central axis S of the insert 1.
- the center axis S of the insert 1 is an axis that penetrates between the upper surface 2 and the lower surface 3 as shown in FIG. 6, and the insert 1 has a pair of cutting portions I and I located at both ends. It means an axis that becomes a rotation axis when rotating so that the positions are interchanged with each other.
- the reference line L corresponds to the bottom of one first concave portion 222 of the first concave and convex surface 22 and the first concave portion 222 that are located above and below in the direction parallel to the central axis S in the cross-sectional view described above. This is a line that passes through the top of one second convex portion 231 of the second concave-convex surface 23 that is located at the top. Then, with reference to the reference line L, the first convex portion 221 positioned adjacent to one first concave portion 222 is a second concave portion 232 positioned adjacent to one second convex portion 231. It is located on the reference line L side.
- the top part 231Bu of the 2nd convex part 231B of the uneven surface 23 is located.
- the first convex portions 221A and 221B located adjacent to the first concave portion 222B are respectively closer to the reference line L than the second concave portions 232A and 232B located adjacent to the second convex portion 231B. Is located.
- the second portion 222B1 and the second portion 222B1 of the first recess 222B are elastically deformed.
- the distance between the top part 231Bu of the convex part 231B can be made as small as possible. As a result, the restraining force of the first concave portion 222B and the second convex portion 231B becomes higher.
- the contact position between the first concave portion 222B and the second convex portion 231B can be positioned on the bottom 222B1 side of the first concave portion 222B, and the reaction force due to elastic deformation becomes larger.
- the restraining force with the two convex portions 231B can be further increased.
- the first concave portion 222 ⁇ / b> B and the second convex portion 231 ⁇ / b> B are located at the center of the first concave and convex surface 22 and the second concave and convex surface 23, respectively.
- the reference line L coincides with the perpendicular bisector of the first uneven surface 22 and the second uneven surface 23.
- the reference line L passes through the midpoint 22P of the first uneven surface 22 and the midpoint 23P of the second uneven surface 23 in the cross-sectional view described above.
- the first recess 222 ⁇ / b> B has a pair of first inclined surfaces 24, 24 that decrease in distance from each other toward the bottom 222 ⁇ / b> Bl in the cross-sectional view described above.
- the 2nd convex part 231B located corresponding to 1 crevice 222B corresponds to a pair of 1st inclined surfaces 24 and 24, and has a pair of 2nd inclined surfaces 25 and 25 convex to the 1st inclined surface 24 side.
- the first inclined surface 24 of the first concave portion 222B and the second inclined surface 25 of the second convex portion 231B are in contact with each other.
- the first concave portion 222B has a first inclined surface 24, and the second convex portion 231B is a first convex surface on the first inclined surface 24 side.
- Two inclined surfaces 25 are provided. That is, the second inclined surface 25 is curved so as to approach the first inclined surface 24.
- the first inclined surface 24 can be easily pulled along the second inclined surface 25, and the contact position between the second convex portion 231B and the first concave portion 222B can be set to the bottom portion 222B1 of the first concave portion 222B. Can be on the side. Furthermore, as shown in FIG. 4 (b), the compressive stress in the direction of arrow F is applied to the insert 1 side by the pressing, so that the binding force can be further increased.
- the one where the curvature radius of the 2nd inclined surface 25 is large is preferable.
- the radius of curvature of the second inclined surface is preferably set to 7.5 to 10 mm, for example.
- the second inclined surface 25 of the insert 1 is preferably a convex curved surface rather than the first inclined surface 24 of the holder 100. According to this, it becomes possible to improve restraint stability with the 1st inclined surface 24 by the side of the holder 100 more.
- the angle ⁇ formed by the virtual extension lines L1 and L1 of the pair of first inclined surfaces 24 and 24 is an obtuse angle. According to this configuration, the first inclined surface 24 of the first concave portion 222B and the second inclined surface 25 of the second convex portion 231B can easily come into contact with each other.
- the top portion 231 ⁇ / b> Bu of the second convex portion 231 ⁇ / b> B is configured by a straight line in the cross-sectional view described above. According to this configuration, the contact position between the second convex portion 231B and the first concave portion 222B can be made closer to the bottom 222B1 side of the first concave portion 222B.
- the contact position of the 2nd convex part 231B and the 1st recessed part 222B is good to be located in the following range.
- a straight line that is perpendicular to the central axis S of the insert 1 and passes through the top portion 221Bu of the first convex portion 221B is H1, and a distance between the bottom portion 222B1 of the first concave portion 222B and the top portion 221Bu of the first convex portion 221B is d3.
- H1 is a straight line translated to the bottom 222B1 side of the first recess 222B by 1/4 of d3, it is better to be located on the bottom 222B1 side of the first recess 222B than the straight line H2.
- d3 is preferably set to 0.12 to 0.28 mm, for example.
- the bottom 222B1 of the first recess 222B is configured with a straight line in the above-described cross-sectional view. As shown in FIG. 4B, the width w3 of the bottom 222B1 of the first recess 222B is smaller than the width w4 of the top 231Bu of the second protrusion 231B. Also with this configuration, the contact position between the second convex portion 231B and the first concave portion 222B can be made closer to the bottom 222B1 side of the first concave portion 222B.
- the first uneven surface 22 and the second uneven surface 23 are both symmetrical with respect to the reference line L.
- the contact portion and the restraining force are uniform around the reference line L in the left-right direction of the first uneven surface 22 and the second uneven surface 23, so that the balance of the insert 1 in the left-right direction is maintained.
- the insert 1 can be restrained.
- the first uneven surface 22 is on the upper side and the second uneven surface 23 is on the lower side in the cross-sectional view described above, it is located farthest from the reference line L.
- the top portions 231Au and 231Cu of the second convex portions 231A and 231C are positioned higher than the virtual straight line H3 that passes through the top portion 231Bu of the second convex portion 231B and is perpendicular to the central axis S of the insert 1. According to this configuration, during cutting, the force applied in the left-right direction of the insert 1 can be received by the second convex portions 231A, 231C, and displacement of the insert 1 in the left-right direction can be more effectively suppressed.
- the first concave portions 222A and 222C and the second convex portions 231A and 231C positioned corresponding to these are not in contact with each other. Therefore, elastic deformation can be effectively promoted.
- the lower jaw portion 102 is curved along the outer periphery of the machining groove in the front end view.
- the front end view means a state in which the cutting tool 20 is viewed from the front end side.
- an end surface grooving process forms an annular groove, so that the lower jaw portion 102 comes into contact with the machining groove during machining.
- the depth is limited to the distance from the cutting blade 5 to the lower jaw 102. Therefore, in the present embodiment, the machining diameter is determined in advance, and the lower jaw portion 102 is curved along the outer periphery of the machining groove.
- a chamfer 103 is provided at the intersection of the inner peripheral surface located on the inner peripheral side of the processing groove of the lower jaw portion 102 and the surface of the lower jaw portion 102 in the lower contact portion 21 b.
- the tip of the insert 1 is pressed from above, so that a stronger stress is more easily applied to the lower jaw portion 102 than to the upper jaw portion 101.
- the thickness of the lower jaw 102 can be increased and the strength of the holder 100 can be increased.
- chips are more likely to enter the inner diameter side than the outer diameter side at the contact portion between the insert 1 and the holder 100. Therefore, by providing the chamfered portion 103, the chips can flow toward the lower end portion of the lower jaw portion 102.
- the holder 100 of the present embodiment has a shank portion 104 formed on the rear end side with respect to the upper jaw portion 101 and the lower jaw portion 102. Further, the holder 100 is formed with a screw hole (not shown) for inserting the clamp screw 105 from the upper jaw portion 101 to the lower jaw portion 102.
- the upper jaw portion 101 and the lower jaw portion 102 and the shank portion 104 are constituted by separate members. According to this configuration, the upper jaw portion 101 and the lower jaw portion 102 can be exchanged, and it is possible to cope with variations in the dimensions of the insert 1.
- the upper jaw part 101, the lower jaw part 102, and the shank part 104 may be shape
- the rigidity of the material of the lower jaw part 102 is higher than the rigidity of the material of the upper jaw part 101 and the shank part 104.
- the tip of the insert 1 is pressed from above, so that a stronger stress is more easily applied to the lower jaw 102 than to the upper jaw 101 or the shank 104.
- a highly rigid material is expensive or requires a high level of technology for processing, a highly rigid material is used for the lower jaw portion 102 to which a relatively large stress is applied, and the upper jaw having a relatively small stress is used.
- a cutting tool 20 that is highly durable and inexpensive can be manufactured.
- the holder 100 preferably includes a slit 107 on the rear end side of the upper jaw portion 101 and the lower jaw portion 102. Since the upper jaw portion 101 or the lower jaw portion 102 is more easily elastically deformed by the slit 107, the insert 1 can be easily attached to and detached from the holder 100.
- the lower jaw portion 102 is formed with an abutting surface 108 for positioning by being brought into contact with the side surface 4 on the rear end side of the insert 1.
- the slit 107 is formed above the contact surface 108.
- the thickness of the holder 100 below the slit 107 can be made larger than when the slit 107 is formed below the contact surface 108.
- the insert 1 has a prismatic shape, and between the pair of cutting parts I and I located at both ends and the pair of cutting parts I and I.
- the clamp part II which has the clamp surfaces 2a and 3a which are located and contacts the upper jaw part 101 and the lower jaw part 102 when being fixed with the holder 100 is provided.
- the clamp surface 2 a is located on the upper surface 2, and the clamp surface 3 a is located on the lower surface 3.
- the cutting part I has a rectangular shape having two long sides and two short sides in a top view, and includes an upper surface 2, a lower surface 3, and side surfaces 4 connected to the upper surface 2 and the lower surface 3, respectively.
- the top view means a state in which the insert 1 is viewed from the top surface 2 side.
- the upper surface 2 functions as a rake surface
- the lower surface 3 functions as a mounting surface for mounting on the holder 100
- the side surface 4 functions as a flank surface.
- the length in the longitudinal direction of the insert 1 is preferably set to 20 mm
- the length in the width direction perpendicular to the longitudinal direction in the top view is set to 2 to 6 mm.
- the height from the lower surface 3 to the upper surface 2 of the insert 1 is preferably set to 4.4 to 5.0 mm according to the length of the insert 1 in the width direction, for example.
- the cutting blade 5 is located on at least a part of the upper surface 2 as described above.
- the cutting blade 5 of this embodiment is located at the intersection of the upper surface 2 and the side surface 4.
- the cutting edge 5 is located along the intersection part of the longitudinal direction and the width direction of the cutting part I, for example.
- the shape of the cutting blade 5 is not particularly limited, such as a linear shape or an arc shape.
- the clamp part II includes a clamp surface 2a on the upper side and a clamp surface 3a on the lower side, and is in contact with the upper jaw part 101 and the lower jaw part 102 of the holder 100.
- Examples of the material of the insert 1 include cemented carbide and cermet.
- the composition of the cemented carbide is, for example, WC—Co produced by adding cobalt (Co) powder to tungsten carbide (WC) and sintering, and WC—coating WC—Co with titanium carbide (TiC).
- Examples thereof include WC—TiC—TaC—Co in which tantalum carbide (TaC) is added to TiC—Co and WC—TiC—Co.
- the cermet is a sintered composite material in which a metal is combined with a ceramic component, and specifically includes a titanium compound mainly composed of titanium carbide (TiC) or titanium nitride (TiN).
- the surface of the insert 1 may be coated with a film using a chemical vapor deposition (CVD) method or a physical vapor deposition (PVD) method.
- CVD chemical vapor deposition
- PVD physical vapor deposition
- the composition of the coating include titanium carbide (TiC), titanium nitride (TiN), titanium carbonitride (TiCN), and alumina (Al 2 O 3 ).
- the fixing of the insert 1 to the holder 100 can be performed as follows, for example. As shown in FIGS. 1 and 2, first, the insert 1 is inserted between the upper jaw portion 101 and the lower jaw portion 102, and the side surface 4 on the rear end side of the insert 1 is pressed against the contact surface 108.
- the clamp screw 105 is tightened, and the upper jaw portion 101 is elastically deformed and pushed down.
- the insert 1 is pressed by the lower jaw 102 and is sandwiched and fixed between the upper jaw 101 and the lower jaw 102.
- the slit 107 is formed, the upper jaw 101 is more easily elastically deformed by the slit 107, so that the tip of the upper jaw 101 can be pushed down more easily.
- the insert 1 of this embodiment is provided with a pair of cutting parts I and I as above-mentioned. Accordingly, the insert 1 is provided with a plurality of cutting blades 5, and even when the cutting blade 5 is worn for a long time, another cutting blade 5 that is not worn can be used. Since it is not necessary to prepare the insert 1, it is economical. For example, in the cutting tool 20 of the present embodiment, when one cutting blade 5 is worn, the insert 1 is removed from the cutting tool 20, and the cutting part I of the insert 1 is replaced with the other cutting part I. What is necessary is just to attach to the cutting tool 20 again. Thereby, the cutting blade 5 which is not worn can be positioned outside the holder 100 and used for cutting.
- the cutting tool 20 ′ of this embodiment is composed of an upper surface 2 ′ of the insert 1 ′ and a surface opposed to the upper jaw portion 101 ′ of the holder 100 ′. It has a contact portion 21′a, and a lower contact portion 21′b configured by a surface opposite to the lower surface 3 ′ of the insert 1 ′ and the lower jaw portion 102 ′ of the holder 100 ′.
- the upper contact portion 21′a includes a second uneven surface 23 ′ on the upper jaw portion 101 ′ of the holder 100 ′, and the first uneven surface 22 ′ on the upper surface 2 ′ of the insert 1 ′. It has.
- the first uneven surface 22 ' has four first convex portions 221' and three first concave portions 222 '.
- the second uneven surface 23 ′ has three second convex portions 231 ′ and four second concave portions 232 ′.
- the concave and convex portions on the respective concave and convex surfaces are defined as follows. As shown in FIG.
- the first convex portions 221 ′ are set to 221′A, 221′B, 221′C, and 221′D in order from the left with respect to the paper surface.
- the first recesses 222 ′ are 222′A, 222′B, and 222′C.
- the second convex portions 231 ′ are 231′A, 231′B, 231′C and the second concave portions 232 ′ are 232′A, 232′B in order from the left with respect to the paper surface. 232′C and 232′D.
- the first convex portion 221 ′ and the second concave portion 232 ′, and the first concave portion 222 ′ and the second convex portion 231 ′ are positioned corresponding to each other. Specifically, as shown in FIG. 10A, 221′A and 232′A, 221′B and 232′B, 221′C and 232′C, 221′D and 232′D, , 222′A and 231′A, 222′B and 231′B, and 222′C and 231′C are located corresponding to each other.
- the lower contact portion 21'b includes a second uneven surface 23 'on the lower jaw portion 102' and a first uneven surface 22 'on the lower surface 3'.
- the first uneven surface 22 ' has four first convex portions 221' and three first concave portions 222 '.
- the second uneven surface 23 ′ has three second convex portions 231 ′ and four second concave portions 232 ′.
- the concave and convex portions on the respective concave and convex surfaces are defined as follows. As shown in FIG.
- the first convex portions 221 ′ are set to 221′A, 221′B, 221′C, and 221′D in order from the left with respect to the paper surface.
- the first recesses 222 ′ are 222′A, 222′B, and 222′C.
- the second convex portions 231 ′ are 231′A, 231′B, 231′C and the second concave portions 232 ′ are 232′A, 232′B in order from the left with respect to the paper surface. 232′C and 232′D.
- the 1st convex part 221 and the 2nd convex part 232, and the 1st concave part 222 and the 2nd convex part 231 are located corresponding, respectively.
- 221′A and 232′A, 221′B and 232′B, 221′C and 232′C, 221′D and 232′D, , 222′A and 231′A, 222′B and 231′B, and 222′C and 231′C are located corresponding to each other.
- the upper contact portion 21′a and the lower contact portion 21′b have the same shape, the upper contact portion 21′a is taken as an example for the first uneven surface 22 ′ and the second uneven surface 23 ′. Will be described.
- the insert 1 ′ and the holder 100 ′ are constrained when the first convex portion 221 ′ and the second concave portion 232 ′ or the first concave portion 222 ′ and the second convex portion 231 ′ are in contact with each other. It is sufficient that at least one pair of the first convex portion 221 ′ and the second concave portion 232 ′ is in contact with the first concave portion 222 ′ and the second convex portion 231 ′. In the present embodiment, as shown in FIG. 10B, the first concave portion 222'B and the second convex portion 231'B are in contact with each other and restrained.
- the distance between the tops of the adjacent first convex portions 221 ′ of the first concave and convex surface 22 ′ is the second concave and convex portions that are located corresponding to the adjacent first convex portions 221 ′.
- the distance is smaller than the distance between the bottoms of the adjacent second recesses 232 ′ of the surface 23 ′.
- the distance between the top portions 221′Au and 221′Bu of the first convex portions 221′A and 221′B adjacent to the first concave and convex surface 22 ′ is defined as d.
- the distance between the top portions 221′Cu and 221′Du of the first convex portions 221′C and 221′D adjacent to the first concave and convex surface 22 ′ is d 3 1 and the second convex and concave surfaces 23 ′ are adjacent to each other. If the distance between the bottoms 232′Cl and 232′Dl in the two recesses 232′C and 232′D is d 3 2, d 3 1 ⁇ d 3 2. According to these structures, a space
- the distance between the first convex portions 221 ′ becomes smaller than the distance between the second concave portions 232 ′.
- a pair of gaps V ′ are generated between the first convex portion 221 ′ and the second concave portion 232 ′. Therefore, the contact portion 21′a is easily elastically deformed, the insert 1 ′ can be guided to an appropriate attachment state, and the insert 1 ′ can be attached at an accurate position.
- the force applied in the left-right direction of the insert 1 ′ can be received by the concave and convex portions, and the displacement of the insert 1 ′ in the left-right direction can be suppressed.
- d 2 1 is set to 1.14 to 2.32 mm
- d 2 2 is set to 1.22 to 2.40 mm
- the difference between d 2 1 and d 2 2 is set to 0.06 to 0.08 mm. preferable.
- the distance d 2 1 is preferably at least half of the width w′1 of the first uneven surface 22 ′, and the distance d 2 2 is the width w of the second uneven surface 23. It is preferably at least 1/2 of '2. That is, it is preferable that d 2 1 ⁇ (1/2) ⁇ w′1 and d 2 2 ⁇ (1/2) ⁇ w′2. According to this configuration, the contact area between the first concave portion 222′B and the second convex portion 231′B can be increased, and the binding force is improved. For example, it is preferable to set w′1 to 1.8 to 5.0 mm and w′2 to 2.1 to 5.0 mm.
- w′1 in the upper contact portion 21′a shown in FIG. 10 and w′1 in the lower contact portion 21′b shown in FIG. 11 may be equal or different values. Also good. For example, when used for end face grooving, w′1 in the lower contact portion 21′b may be set smaller than w′1 in the upper contact portion 21′a in consideration of the processing diameter.
- the cross-sectional view of the upper contact portion 21′a that is, the arrow b ′ perpendicular to the longitudinal direction of the holder 100 ′ and parallel to the central axis S ′ of the insert 1 ′.
- the top portion 231′Bu of the second convex portion 231′B of the surface 23 ′ is located.
- 1st convex part 221'B and 221'C located adjacent to 1st recessed part 222'B are respectively 2nd recessed part 232 located adjacent to 2nd convex part 231'B. It is located closer to the reference line L 'than' B, 232'C.
- the first recess 222′B and the top 231′Bu of the second protrusion 231′B are located on the reference line L ′, the first recess 222 ′. B and the second convex portion 231′B are more easily engaged with each other, and due to elastic deformation, between the bottom 222′Bl of the first concave portion 222′B and the top portion 231′Bu of the second convex portion 231′B. Can be made as small as possible. As a result, the restraining force of the first concave portion 222'B and the second convex portion 231'B becomes higher.
- the contact position between the first concave portion 222′B and the second convex portion 231′B can be positioned on the bottom 222′B1 side of the first concave portion 222′B, and the reaction force due to elastic deformation becomes larger. Therefore, the restraining force between the first concave portion 222′B and the second convex portion 231′B can be further increased.
- the first concave portion 222′B and the second convex portion 231′B are respectively formed on the first concave and convex surface 22 ′ and the second concave and convex surface 23 ′.
- the reference line L ′ coincides with the perpendicular bisector of the first uneven surface 22 ′ and the second uneven surface 23 ′.
- the reference line L ′ passes through the midpoint 22 ′ P of the first uneven surface 22 ′ and the midpoint 23 ′ P of the second uneven surface 23 ′ in the cross-sectional view described above.
- the first concave portion 222′B has a pair of first inclined surfaces 24 ′, 24 that decrease in distance from each other toward the bottom portion 222′B1 in the cross-sectional view described above.
- 2nd convex part 231'B located in correspondence with the first concave part 222'B corresponds to the pair of first inclined surfaces 24 ', 24' and is on the first inclined surface 24 'side It has a pair of convex second inclined surfaces 25 ', 25'.
- the first inclined surface 24 ′ of the first concave portion 222′B and the second inclined surface 25 ′ of the second convex portion 231′B come into contact with each other. ing.
- the first concave portion 222′B has the first inclined surface 24 ′
- the second convex portion 231′B has the first inclined surface.
- a convex second inclined surface 25 ′ is provided on the surface 24 ′ side. According to this configuration, the first inclined surface 24 ′ can be easily pulled along the second inclined surface 25 ′, and the contact position between the second convex portion 231′B and the first concave portion 222′B is more first.
- the radius of curvature of the second inclined surface 25 ' is preferably as large as possible.
- the radius of curvature of the second inclined surface 25 ' is preferably set to 7.5 to 10 mm, for example.
- the second convex portion 231'B is configured by a curve obtained by one radius of curvature.
- the contact position between the second convex portion 231′B and the first concave portion 222′B is located in the following range from the viewpoint of improving the binding force. Is good.
- a straight line that is perpendicular to the central axis S ′ of the insert 1 ′ and passes through the top 221′Bu of the first convex portion 221′B is H′1, and the bottom 222′B1 of the first concave portion 222′B and the first convex portion
- the distance between the top 221'Bu of 221'B and d'3, and the straight line H'1 is translated to the bottom 222'B1 side of the first recess 222'B by 1/4 of d'3 Is H′2, it is better to be located on the bottom 222′B1 side of the first recess 222′B than the straight line H′2.
- d′ 3 is preferably set to 0.12 to 0.28 mm.
- both the first uneven surface 22 'and the second uneven surface 23' are symmetrical with respect to the reference line L '. According to this configuration, the contact location and the restraining force are equal in the left-right direction of the first uneven surface 22 ′ and the second uneven surface 23 ′ around the reference line L ′. Insert 1 'can be restrained, maintaining a balance.
- FIG. 1 ⁇ Manufacturing method of cut product>
- the cutting tool 20 will be described as an example. Since the present embodiment is an end face grooving process, an annular groove 31 is formed on the end face of the work material 30 as shown in FIG. A part of the work material 30 shown in FIGS. 13A to 13C is shown in a sectional view.
- the method for manufacturing a cut product includes the following steps (i) to (iv).
- Iv A step of moving the cutting tool 20 in the arrow Z direction to separate the cutting tool 20 from the cut work material 30 as shown in FIG.
- the cut workpiece 33 shown in FIG. 13D is manufactured.
- the work material 30 and the cutting tool 20 may be relatively close to each other.
- the work material 30 may be close to the cutting tool 20.
- the work material 30 and the cutting tool 20 may be relatively separated from each other.
- the work material 30 may be separated from the cutting tool 20.
- a longitudinal feed process for forming a groove is performed and a lateral feed process for flattening the bottom surface of the groove is performed.
- the process of bringing the cutting blade 5 of the cutting tool 20 into contact with a different part of the work material 30 may be repeated while maintaining the state where the work material 30 is rotated.
- the material of the work material 30 include carbon steel, alloy steel, stainless steel, cast iron, and non-ferrous metal.
- the right-handed holder 100 may be sufficient.
- the case where the cutting tool 20 is used has been described as an example.
- the cutting tool 20 ′ is used instead of the cutting tool 20, the same effect can be obtained.
- the present invention is not limited to the embodiment and modification mentioned above, and can be made arbitrary, unless it deviates from the gist of the present invention. Needless to say.
- the first uneven surface 22 and the second uneven surface 23 are both symmetrical with respect to the reference line L.
- the first concavo-convex surface and the second concavo-convex surface may be shaped to be shifted to one side with respect to the reference line L. According to this structure, the position shift of the insert in the left-right direction can be more effectively suppressed in the left-handed or right-handed holder.
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Abstract
Description
以下、本発明の実施形態に係る切削工具について、図1~図12を用いて詳細に説明する。本発明の実施形態に係る切削工具は、内径の溝入れ加工、外径の溝入れ加工、突切り加工および端面溝入れ加工のいずれにも使用できる。以下の説明においては、特記しない限り、本発明の実施形態に係る切削工具を端面溝入れ加工に使用する場合を例に挙げて説明する。
以下、本発明の切削工具に係る第1実施形態について、図1~図6を用いて説明する。
図1および図2に示すように、本実施形態の切削工具20は、略角柱状であり、切削インサート(以下、「インサート」と言うことがある。)1と、先端部にインサート1を固定しているホルダ100とを備えている。
次に、本発明の第2実施形態に係るインサートについて、図7~図12を用いて詳細に説明する。なお、図7~図12においては、上述した図1~図6と同一の構成部分には同一の符号を付して説明は省略する。
次に、本発明の実施形態に係る切削加工物の製造方法を、図13を用いて説明する。本実施形態においては、切削工具20を例にとって説明する。
本実施形態は、端面溝入れ加工であるため、図13(d)に示すように、被削材30の端面には、環状の溝31が形成される。なお、図13(a)~(c)に示された被削材30は、一部を断面図で示している。
(i)図13(a)に示すように、略円柱状の被削材30を、回転軸32を中心に矢印X方向に回転させる工程。
(ii)切削工具20を矢印Y方向に動かし、回転している被削材30に切削工具20を近接させる工程。
(iii)図13(b)に示すように、回転している被削材30に切削工具20の切刃5を接触させて被削材30を切削する工程。
(iv)図13(c)に示すように、切削工具20を矢印Z方向に動かし、切削した被削材30から切削工具20を離隔する工程。
なお、(i)の工程では、被削材30と切削工具20とは相対的に近づけばよく、例えば被削材30を切削工具20に近づけてもよい。これと同様に、(iv)の工程では、被削材30と切削工具20とは相対的に離隔すればよく、例えば被削材30を切削工具20から離隔してもよい。また、(iii)の工程においては、溝入れ加工の際には、溝を形成する縦送り加工が行われるとともに、溝の底面を平坦にする横送り加工が行われる。
切削加工を継続する場合には、被削材30を回転させた状態を保持したまま、被削材30の異なる箇所に切削工具20の切刃5を接触させる工程を繰り返せばよい。
被削材30の材質としては、例えば、炭素鋼、合金鋼、ステンレス、鋳鉄、非鉄金属などが挙げられる。
以上、本発明の実施形態およびその変形例について例示したが、本発明は上述した実施形態および変形例に限定されるものではなく、本発明の要旨を逸脱しない限り任意のものとすることができることは言うまでもない。
例えば、上述の実施形態に係る切削工具20においては、図4に示すように、第1凹凸面22および第2凹凸面23はいずれも、基準線Lに対して線対称の形状としたが、これに代えて、第1凹凸面および第2凹凸面を基準線Lに対して一方側にずれるような形状にしてもよい。この構成によれば、左勝手あるいは右勝手のホルダにおいてインサートの左右方向の位置ずれをより効果的に抑制することができる。
Claims (14)
- 上面および下面ならびに前記上面の少なくとも一部の辺に位置している切刃を有する、切削インサートと、
長手方向の先端部に、前記切削インサートを前記上面および前記下面から固定している上顎部および下顎部を有する、ホルダと、を備える切削工具であって、
前記切削インサートの前記上面と前記ホルダの前記上顎部との上接触部および前記切削インサートの前記下面と前記ホルダの前記下顎部との下接触部のうち少なくとも一方は、第1凹凸面および第2凹凸面を有し、
前記第1凹凸面は、前記ホルダの長手方向に沿って延びている複数の第1凸部および少なくとも1つの第1凹部を有し、
前記第2凹凸面は、前記複数の第1凸部に対応して位置している複数の第2凹部および前記少なくとも1つの第1凹部に対応して位置している少なくとも1つの第2凸部を有し、
前記ホルダの長手方向に垂直な断面視において、前記第1凹凸面の前記複数の第1凸部のうち隣り合う前記第1凸部の頂部間の距離d1は、前記隣り合う第1凸部に対応して位置している前記第2凹凸面の前記複数の第2凹部のうち隣り合う前記第2凹部の底部間の距離d2よりも小さい、切削工具。 - 前記第1凹凸面と前記第2凹凸面との間に空隙を有する、請求項1に記載の切削工具。
- 前記下接触部が、前記第1凹凸面および前記第2凹凸面を有する、請求項1または2に記載の切削工具。
- 前記断面視において、前記距離d1が、前記第1凹凸面の幅w1の1/2以上であるとともに、前記距離d2が、前記第2凹凸面の幅w2の1/2以上である、請求項1~3のいずれかに記載の切削工具。
- 前記断面視において、前記少なくとも1つの第1凹部のうち前記隣り合う第1凸部の間に位置している1つの第1凹部の底部と、前記1つの第1凹部に対応して位置している前記少なくとも1つの第2凸部のうちの1つの第2凸部の頂部とを通る基準線Lを基準にして、前記1つの第1凹部に隣接して位置している前記第1凸部は、前記1つの第2凸部に隣接して位置している前記第2凹部よりも前記基準線L側に位置している、請求項1~4のいずれかに記載の切削工具。
- 前記断面視において、前記1つの第1凹部および前記1つの第2凸部は、それぞれ前記第1凹凸面および前記第2凹凸面の中央部に位置している、請求項5に記載の切削工具。
- 前記基準線Lが、前記断面視における前記第1凹凸面の中点および前記第2凹凸面の中点を通っている、請求項5または6に記載の切削工具。
- 前記断面視において、前記1つの第1凹部は、前記底部に向かうにつれて互いの距離が小さくなる一対の第1傾斜面を有するとともに、前記1つの第2凸部は、前記一対の第1傾斜面側に凸であり且つ前記一対の第1傾斜面に当接している一対の第2傾斜面を有する、請求項5~7のいずれかに記載の切削工具。
- 前記断面視において、前記一対の第1傾斜面の仮想延長線同士のなす角の角度が、鈍角である、請求項8に記載の切削工具。
- 前記断面視において、前記1つの第2凸部の頂部は、直線状である、請求項5~9のいずれかに記載の切削工具。
- 前記断面視において、前記1つの第1凹部の底部は、直線状であるとともに、幅が前記1つの第2凸部の頂部の幅よりも小さい、請求項10に記載の切削工具。
- 前記1つの第1凹部および前記1つの第2凸部はいずれも、前記基準線Lに対して線対称である、請求項5~11のいずれかに記載の切削工具。
- 前記少なくとも1つの第2凸部は複数の第2凸部を有し、
前記断面視において、前記第1凹凸面を上にし、前記第2凹凸面を下にしたとき、前記複数の第2凸部のうち前記基準線Lから最も離れて位置している前記第2凸部の頂部は、他の前記第2凸部の頂部よりも高い位置にある、請求項5~12のいずれかに記載の切削工具。 - 被削材を回転させる工程と、
回転している前記被削材と請求項1~13のいずれかに記載の切削工具の前記切刃とを接触させる工程と、
前記被削材と前記切削工具とを離隔させる工程と、
を備える、切削加工物の製造方法。
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JP2012549701A JP5671555B2 (ja) | 2010-12-25 | 2011-11-29 | 切削工具およびそれを用いた切削加工物の製造方法 |
KR1020137014394A KR101498937B1 (ko) | 2010-12-25 | 2011-11-29 | 절삭 공구 및 그것을 사용한 절삭 가공물의 제조 방법 |
EP11851906.5A EP2656950B1 (en) | 2010-12-25 | 2011-11-29 | Cutting tool and method for manufacturing cut product using same |
CN201180057568.1A CN103237620B (zh) | 2010-12-25 | 2011-11-29 | 切削工具及使用了该切削工具的切削加工物的制造方法 |
US13/992,040 US9517509B2 (en) | 2010-12-25 | 2011-11-29 | Cutting tool and method of manufacturing machined product using the same |
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JP2014526394A (ja) * | 2012-10-10 | 2014-10-06 | イスカーリミテッド | チップ除去のための切削工具アセンブリの切削用インサート、切削用本体、および締め付け機構 |
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Also Published As
Publication number | Publication date |
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US9517509B2 (en) | 2016-12-13 |
CN103237620A (zh) | 2013-08-07 |
KR101498937B1 (ko) | 2015-03-05 |
CN103237620B (zh) | 2015-09-30 |
JP5671555B2 (ja) | 2015-02-18 |
JPWO2012086375A1 (ja) | 2014-05-22 |
EP2656950A1 (en) | 2013-10-30 |
EP2656950B1 (en) | 2017-06-21 |
KR20130083928A (ko) | 2013-07-23 |
EP2656950A4 (en) | 2015-05-20 |
US20130251465A1 (en) | 2013-09-26 |
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