CN101695760A - PCBN cutter blade with knifepoint provided with scrap sweeping grooves - Google Patents

PCBN cutter blade with knifepoint provided with scrap sweeping grooves Download PDF

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Publication number
CN101695760A
CN101695760A CN200910044654A CN200910044654A CN101695760A CN 101695760 A CN101695760 A CN 101695760A CN 200910044654 A CN200910044654 A CN 200910044654A CN 200910044654 A CN200910044654 A CN 200910044654A CN 101695760 A CN101695760 A CN 101695760A
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Prior art keywords
blade
cutting
groove
cutting tips
pcbn
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CN200910044654A
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CN101695760B (en
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姚学祥
王社权
李屏
胡美艳
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Zhuzhou Cemented Carbide Cutting Tools Co Ltd
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Zhuzhou Cemented Carbide Cutting Tools Co Ltd
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Abstract

The invention discloses PCBN cutter blade with a knifepoint provided with scrap sweeping grooves, comprising a cutter blade basal body (1) and a cutting knifepoint (2). Scrap sweeping grooves (3) are arranged on the cutting knifepoint (2) along the cutting edge or the cutting band (4) of the cutter blade in parallel. Each scrap sweeping groove (3) is of a curved groove, and the sectional contour line of any cross section can be a circle arc line, an elliptic arc line or a parabola. The PCBN cutter blade has the advantages of small damage on the surface of a workpiece, high machining precision, good machining quality, long service life, and the like.

Description

Cutting tips partly is provided with the PCBN blade of chip curling groove
Technical field
The present invention relates to a kind of insert for metal cutting, relate in particular to a kind of cutting tip of doing specially treated at the cutting edge nose part.
Background technology
Polycrystalline cubic boron nitride (PCBN) is a kind of superhard material manually synthetic under superhigh temperature and condition of high voltage, has very high hardness, is difficult to shape.This material has been can only be processed to not have the flat plate blade of flute profile or constitute the simple anterior angle blade of blade by straight line since emerging always.Patent ZL200820123325.9 discloses PCD or the PCBN blade that a kind of rake face has chip-breaker, in this patent specification its chip-breaker 13 of record be configured to around blade 12 is downward-sloping certain size arranged, be inclined upwardly again and extend to rake face 11 formation grooves (referring to accompanying drawing 1), the effect of this groove is in process, making machined material produce plastic deformation by chip-breaker ruptures, so that process smooth and easyly, mention machining accuracy and quality, prolong blade life.Yet, by the description of this patent specification content and accompanying drawing as can be seen, this chip-breaker 13 only is meant has processed an anterior angle on the rake face 11 of blade base 1, the outline line of these chip-breaker 13 cross sections is " V " font (seeing accompanying drawing 1), its preceding groove face 14 and back groove face 15 are a plane, though objectively can play the effect of chip breaking, the chip breaking effect is unsatisfactory.On the other hand, the real work position of considering blade is only in the point of a knife part, and the chip-breaker 13 of blade has occupied most of area of rake face 11 in this patent, and the material of blade base 1 and point of a knife part is not done strict the differentiation, all adopt expensive PCD or PCBN preparation, this also is a kind of great waste for production and processing.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provides a kind of surface of the work is damaged PCBN blade little, that cutting tips that machining accuracy is high, crudy good, the life-span is long partly is provided with chip curling groove.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is the PCBN blade that a kind of cutting tips partly is provided with chip curling groove, described PCBN blade comprises blade base and cutting tips, the chip curling groove that is opened in the cutting tips place is arranged in parallel along the cutting edge or the cutting land of blade, and it is characterized in that: described chip curling groove is a curved surface groove.Described curved surface groove can be set to enclosed type or opening groove according to the needs of processing in the practice.
In the above-mentioned technical scheme, the range line profile of described curved surface groove on arbitrary cross section can be the smooth combination of multiple curved line, is preferably circular arc line, oval camber line or parabola.Described arbitrary cross section is meant arbitrary perpendicular perpendicular to cutting edge or cutting land.Range line profile is the volume bits that circular arc line, oval camber line or parabolical curved surface groove more help chip curling groove, more helps improving simultaneously the sharpness of cutting edge.
In the above-mentioned technical scheme, described blade base and cutting tips all can be made of the PCBN material, but cost is higher relatively, so blade base is preferably Hardmetal materials, cutting tips then adopts the PCBN material, and described cutting tips and blade base are fixed by high-frequency welding again.Because the real work position of blade mainly in the cutting tips part, therefore only partly adopts the PCBN material to make in cutting tips, can under the prerequisite that guarantees stock-removing efficiency and blade quality, reduce cost greatly.On this basis, the ratio of the thickness of the thickness of described cutting tips and blade base is preferably 1: (1～15).
Be consideration equally for cost, in the above-mentioned technical scheme, another kind of preferred material arrangements mode is: described blade base is a Hardmetal materials, described cutting tips comprises the cutting blade tip on top layer and the point of a knife substrate of nexine, described cutting blade tip is the PCBN material, and described point of a knife substrate is a Hardmetal materials.Under this kind situation, the point of a knife substrate is the transition zone that the cutting blade tip is connected with blade base, and adhesion is more firm than welding manner like this.On this basis, the ratio of the thickness of the thickness of described cutting tips and blade base is preferably 1: (1～15); The ratio of the thickness of the thickness of described cutting blade tip and point of a knife substrate is preferably 1: (1～5).
In the above-mentioned technical scheme, the groove width w of described curved surface groove is preferably 0.5mm～3mm, and (optimum be 1.0mm～2.0mm), the groove depth d of curved surface groove is preferably 0.05mm～0.5mm and (optimumly is 0.08mm～0.2mm).Different according to the difference of blade sizes and use occasion, the value of groove depth and groove width also can adjust accordingly, but value more meets the value standard of ISO numerical control blade flute profile in aforementioned preferred range.
In the above-mentioned technical scheme, the shape of described cutting tips is preferably triangle, arc, circular, annular, circle ring sector, fan-shaped or polygon.The shape of described cutting tips generally should match with the shape of blade base chamfered groove, be that circular shear blade can be selected circle, annular or arc cutting tips, triangle or diamond shaped insert can be selected leg-of-mutton cutting tips or the like, so not only make things convenient for processing and fabricating, also make things convenient for using and operating of blade, and structure is compact, attractive in appearance more, and waste of material is less.
In the above-mentioned technical scheme, if the cutting land is wide, then the sharpness of blade may be limited; If the cutting land is narrow, then the intensity of cutting edge may reduce, and therefore takes all factors into consideration every factor, and the width k of described cutting land is preferably 0.001mm～0.5mm in well known range.
Compared with prior art, the invention has the advantages that: at first, because chip curling groove is the smooth surface groove in the blade of the present invention, therefore partly be provided with the PCBN blade of chip curling groove in carrying out cutting process with cutting tips of the present invention, can flow out (general plane groove is difficult to reach this technique effect) so that the direction that the smear metal of machined material sets according to chip curling groove is curled, so just, can effectively avoid smear metal that the surface of the work of having processed is caused damage, improve machining accuracy and crudy; Chip curling groove of the present invention on the other hand can advantageously improve the sharpness of blade cut sword, reduces cutting resistance, prolongs the service life of blade.In addition, as a further improvement on the present invention, the present invention also is further optimized on the structure of blade, material arrangements and improves, and makes that blade structure of the present invention is compact more, the blade processing cost is littler, outward appearance is more attractive in appearance, is convenient to production and processing and manipulates.
Description of drawings
Fig. 1 is the PCBN blade structure schematic diagram of existing band chip-breaker;
Fig. 2 is the vertical view of the PCBN blade in the embodiment of the invention 1;
Fig. 3 is the cutaway view at A-A place among Fig. 2;
Fig. 4 is the partial enlarged drawing at B place among Fig. 3;
Fig. 5 is the PCBN blade structure schematic diagram that has opening chip curling groove;
Fig. 6 is the vertical view of the PCBN blade in the embodiment of the invention 2;
Fig. 7 is the cutaway view at C-C place among Fig. 6;
Fig. 8 is the partial enlarged drawing at D place among Fig. 7;
Fig. 9 is the polygon blade structure schematic diagram that has chip curling groove.
Marginal data:
1, blade base 11, rake face
12, blade 13, chip-breaker
14, preceding groove face 15, back groove face
2, cutting tips 21, cutting blade tip
22, point of a knife substrate 3, chip curling groove
4, cutting land
The specific embodiment
Embodiment 1:
As Fig. 2～PCBN blade a kind of of the present invention shown in Figure 4, comprise affixed cutting tips 2 on 1 one jiaos of the blade base 1 of rhombus and the blade bases, cutting tips 2 be shaped as triangle.Cutting tips 2 comprises the cutting blade tip 21 on top layer and the point of a knife substrate 22 of nexine again, and cutting blade tip 21 is to be connected by 22 transition of point of a knife substrate with blade base 1.Blade base 1 and point of a knife substrate 22 are Hardmetal materials, and cutting blade tip 21 is the PCBN material.The thickness H of blade base 1 is 4.76mm, the thickness h of cutting tips 2 1Be 1.6mm, the thickness h of cutting blade tip 21 2Be 0.8mm.
Cutting blade tip 21 surfaces in cutting tips 2, the cutting land 4 parallel chip curling grooves 3 that offer along blade, chip curling groove 3 is a smooth surface groove, and the preceding groove face 14 of this curved surface groove extends to cutting plane, land 4 place, and the back groove face 15 of this curved surface groove extends to the upper surface of cutting blade tip 21.The range line profile of this curved surface groove on arbitrary cross section (arbitrary perpendicular perpendicular to the cutting land) is a parabola (referring to Fig. 4).The width k of cutting land 4 is 0.05mm, and the groove width w of curved surface groove is 1.5mm, and the groove depth d of curved surface groove is 0.15mm.The arc radius r at cutting tips 2 fillet places is 0.4mm.The curved surface groove of present embodiment is the enclosed type groove, certainly also can be processed into as shown in Figure 5 opening groove according to putting into practice needs.
The PCBN blade of above-mentioned present embodiment is to prepare by the following method: utilize high-frequency welding or other conventional high temperature infiltration modes earlier, cutting tips 2 is secured on the carbide blade base 1, after grinding, utilize laser engraving machine (model: LASERTEC40 again, the Germany De Maji DMG of Co., Ltd produces) carry out cutting on cutting blade tip 21 surfaces of cutting tips 2, earlier the three-dimensional CAD model data of present embodiment PCBN blade cut blade tip 21 are imported in this laser engraving machine during laser grooving, (high energy beam current mainly is meant the laser line to drive high energy beam current, electronic beam currents etc.), the PCBN blade of present embodiment is finished and is obtained in cutting after the subsequent treatment of routine.
Adopt the PCBN blade of this examples preparation, cooperate suitable cutter and cutting parameter, can control the outflow direction of smear metal effectively, avoid smear metal that manufactured surface of the work is caused damage well.On the other hand,, reduced cutting resistance effectively because the present embodiment blade has sharper cutting edge, under the situation of equal stock-removing efficiency, the service life that can improve blade widely; Or under the situation in equal service life, can improve stock-removing efficiency widely.
Embodiment 2:
As Fig. 6～PCBN blade a kind of of the present invention shown in Figure 8, comprise affixed cutting tips 2 on circular blade base 1 and the blade base 1, cutting tips 2 be shaped as annular.Cutting tips 2 comprises the cutting blade tip 21 on top layer and the point of a knife substrate 22 of nexine again, and cutting blade tip 21 is to be connected by 22 transition of point of a knife substrate with blade base 1.Blade base 1 and point of a knife substrate 2 are Hardmetal materials, and cutting blade tip 21 is the PCBN material.The thickness H of blade base 1 is 6.35mm, the thickness h of cutting tips 2 1Be 1.6mm, the thickness h of cutting blade tip 21 2Be 0.8mm.
Cutting blade tip 21 surfaces in cutting tips 2, the cutting land 4 parallel annular chip curling grooves 3 that offer along blade, chip curling groove 3 is a smooth surface groove, the preceding groove face 14 of this curved surface groove extends to cutting plane, land 4 place, and the back groove face 15 of this curved surface groove extends to the upper surface of cutting blade tip 21.The range line profile of this curved surface groove on arbitrary cross section (arbitrary perpendicular perpendicular to the cutting land) is an oval camber line (see figure 8).The width k of cutting land 4 is 0.1mm, and the groove width w of curved surface groove is 2.0mm, and the groove depth d of curved surface groove is 0.2mm.
The PCBN blade of above-mentioned present embodiment is to prepare by the following method: utilize high-frequency welding or other conventional high temperature infiltration modes earlier, cutting tips 2 is secured on the carbide blade base 1, after grinding, utilize laser engraving machine (model: LASERTEC40 again, the Germany De Maji DMG of Co., Ltd produces) carry out cutting on cutting blade tip 21 surfaces of cutting tips 2, earlier the three-dimensional CAD model data of present embodiment PCBN blade cut blade tip 21 are imported in this laser engraving machine during laser grooving, (high energy beam current mainly is meant the laser line to drive high energy beam current, electronic beam currents etc.), the PCBN blade of present embodiment is finished and is obtained in cutting after the subsequent treatment of routine.
Adopt the PCBN blade of this examples preparation, cooperate suitable cutter and cutting parameter, can control the outflow direction of smear metal effectively, avoid smear metal that manufactured surface of the work is caused damage well.On the other hand,, reduced cutting resistance effectively because the present embodiment blade has sharper cutting edge, under the situation of equal stock-removing efficiency, the service life that can improve blade widely; Or under the situation in equal service life, can improve stock-removing efficiency widely.
The present invention also can be applicable to polygon blade as shown in Figure 9 except the circular shear blade of the diamond shaped insert that can be applicable to the foregoing description 1, embodiment 2, on this polygon blade, the triangle of embodiment 1 still can be processed in the bottom surface of cutting tips.
The various embodiments described above only are for more clearly describing content of the present invention, but can not be construed as limiting the invention, any and the present invention constitute substantive identical or the technical scheme that is equal to all in protection scope of the present invention.

Claims (9)

1. a cutting tips partly is provided with the PCBN blade of chip curling groove, described PCBN blade comprises blade base (1) and cutting tips (2), be opened in chip curling groove (3) that cutting tips (2) locates and be arranged in parallel along the cutting edge or the cutting land (4) of blade, it is characterized in that: described chip curling groove (3) is a curved surface groove.
2. cutting tips according to claim 1 partly is provided with the PCBN blade of chip curling groove, it is characterized in that: the range line profile of described curved surface groove on arbitrary cross section is circular arc line, oval camber line or parabola.
3. cutting tips according to claim 1 and 2 partly is provided with the PCBN blade of chip curling groove, it is characterized in that: described blade base (1) is a Hardmetal materials, and described cutting tips (2) is a Polycrystalline Cubic Boron Nitride.
4. cutting tips according to claim 3 partly is provided with the PCBN blade of chip curling groove, it is characterized in that: the ratio of the thickness of the thickness of described cutting tips (2) and blade base (1) is 1: (1～15).
5. cutting tips according to claim 1 and 2 partly is provided with the PCBN blade of chip curling groove, it is characterized in that: described blade base (1) is a Hardmetal materials, described cutting tips (2) comprises the cutting blade tip (21) on top layer and the point of a knife substrate (22) of nexine, described cutting blade tip (21) is a Polycrystalline Cubic Boron Nitride, and described point of a knife substrate (22) is a Hardmetal materials.
6. cutting tips according to claim 5 partly is provided with the PCBN blade of chip curling groove, it is characterized in that: the ratio of the thickness of the thickness of described cutting tips (2) and blade base (1) is 1: (1～15); The ratio of the thickness of the thickness of described cutting blade tip (21) and point of a knife substrate (22) is 1: (1～5).
7. cutting tips according to claim 1 and 2 partly is provided with the PCBN blade of chip curling groove, it is characterized in that: the groove width w of described curved surface groove is 0.5mm～3mm, and the groove depth d of curved surface groove is 0.05mm～0.5mm.
8. cutting tips according to claim 1 and 2 partly is provided with the PCBN blade of chip curling groove, it is characterized in that: described cutting tips (2) be shaped as triangle, arc, circular, annular, circle ring sector, fan-shaped or polygon.
9. cutting tips according to claim 1 and 2 partly is provided with the PCBN blade of chip curling groove, it is characterized in that: the width k of described cutting land (4) is 0.001mm～0.5mm.
CN2009100446543A 2009-10-29 2009-10-29 PCBN cutter blade with knifepoint provided with scrap sweeping grooves Active CN101695760B (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102198524A (en) * 2011-04-08 2011-09-28 郑州市钻石精密制造有限公司 Mechanical clamped cutting blade used for machining external diameters of various kinds of shafts
CN103192102A (en) * 2013-04-15 2013-07-10 北京沃尔德超硬工具有限公司 Superhard blade with chip breaking groove
CN103551609A (en) * 2013-11-08 2014-02-05 江苏切剀刀具有限公司 Super-hard turning cutter blade with crater-abrasion-resistance grooves for fine processing
CN104325163A (en) * 2014-10-24 2015-02-04 杨卫峰 Cutter for processing
CN103391826B (en) * 2011-02-03 2016-01-20 山高刀具公司 There is the cutting tip of symmetrical sphering cutting edge
TWI579076B (en) * 2014-08-20 2017-04-21 國立臺灣大學 Cutting tool
CN107030303A (en) * 2015-12-11 2017-08-11 肯纳金属公司 Ceramic cutting insert and its manufacture method
CN108030374A (en) * 2018-01-19 2018-05-15 佛山科学技术学院 Rubbish formula Domestic peeler can be stored
CN109420779A (en) * 2017-08-22 2019-03-05 江苏扬碟钻石工具有限公司 A kind of PCBN blade of the asymmetric cutting edge structure of tool arc
CN110369743A (en) * 2019-08-19 2019-10-25 北京沃尔德金刚石工具股份有限公司 A kind of PCBN cutter and manufacturing method with chip-breaker
CN110788355A (en) * 2018-08-01 2020-02-14 上海必攀金属切削技术有限公司 CBN (cubic boron nitride) blade and machining method thereof
CN112384319A (en) * 2018-07-03 2021-02-19 住友电工硬质合金株式会社 Cutting insert and method of manufacturing the same

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103391826B (en) * 2011-02-03 2016-01-20 山高刀具公司 There is the cutting tip of symmetrical sphering cutting edge
CN102198524A (en) * 2011-04-08 2011-09-28 郑州市钻石精密制造有限公司 Mechanical clamped cutting blade used for machining external diameters of various kinds of shafts
CN103192102A (en) * 2013-04-15 2013-07-10 北京沃尔德超硬工具有限公司 Superhard blade with chip breaking groove
CN103192102B (en) * 2013-04-15 2016-12-28 北京沃尔德金刚石工具股份有限公司 A kind of superhard cutting blade of band chip-breaker
CN103551609A (en) * 2013-11-08 2014-02-05 江苏切剀刀具有限公司 Super-hard turning cutter blade with crater-abrasion-resistance grooves for fine processing
CN103551609B (en) * 2013-11-08 2016-04-27 江苏切剀刀具有限公司 For the accurately machined turning superhard cutting blade with anti-crescent hollow abrasion groove
TWI579076B (en) * 2014-08-20 2017-04-21 國立臺灣大學 Cutting tool
CN104325163A (en) * 2014-10-24 2015-02-04 杨卫峰 Cutter for processing
CN107030303A (en) * 2015-12-11 2017-08-11 肯纳金属公司 Ceramic cutting insert and its manufacture method
CN109420779A (en) * 2017-08-22 2019-03-05 江苏扬碟钻石工具有限公司 A kind of PCBN blade of the asymmetric cutting edge structure of tool arc
CN108030374A (en) * 2018-01-19 2018-05-15 佛山科学技术学院 Rubbish formula Domestic peeler can be stored
CN112384319A (en) * 2018-07-03 2021-02-19 住友电工硬质合金株式会社 Cutting insert and method of manufacturing the same
CN110788355A (en) * 2018-08-01 2020-02-14 上海必攀金属切削技术有限公司 CBN (cubic boron nitride) blade and machining method thereof
CN110369743A (en) * 2019-08-19 2019-10-25 北京沃尔德金刚石工具股份有限公司 A kind of PCBN cutter and manufacturing method with chip-breaker

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