CN1160370A - 带一个钻头尖端部分的钻头 - Google Patents
带一个钻头尖端部分的钻头 Download PDFInfo
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- 229910001315 Tool steel Inorganic materials 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000005553 drilling Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/0002—Drills with connected cutting heads, e.g. with non-exchangeable cutting heads; Drills with a single insert extending across the rotational axis and having at least two radially extending cutting edges in the working position
- B23B51/0003—Drills with connected cutting heads, e.g. with non-exchangeable cutting heads; Drills with a single insert extending across the rotational axis and having at least two radially extending cutting edges in the working position with exchangeable heads or inserts
- B23B51/00035—Spade drills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/02—Connections between shanks and removable cutting heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/18—Configuration of the drill point
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/50—Drilling tools comprising cutting inserts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
- B23B2270/08—Clamping mechanisms; Provisions for clamping
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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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S408/00—Cutting by use of rotating axially moving tool
- Y10S408/713—Tool having detachable cutting edge
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/78—Tool of specific diverse material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/909—Having peripherally spaced cutting edges
- Y10T408/9095—Having peripherally spaced cutting edges with axially extending relief channel
- Y10T408/9097—Spiral channel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/909—Having peripherally spaced cutting edges
- Y10T408/9098—Having peripherally spaced cutting edges with means to retain Tool to support
- Y10T408/90993—Screw driven means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Surgical Instruments (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Drilling And Boring (AREA)
Abstract
一种钻头主要由钻头体(1)和特别是由纯硬质合金制成的钻尖部分(3)组成。钻头体(1)的端头(2)由一个用来安装钻头部分(3)的径向槽贯通。钻头体(1)在周向具有一直延伸到槽(7)区域的容屑槽,它一直伸展到钻尖部分(3)。槽(7)的侧壁至少局部相互平行并平行于轴的线(12)。钻尖部分(3)以它的与槽侧壁(10,11)相应的侧面(13,14)借助于插塞夹紧配合利用弹性,被槽侧壁(10,11)所施加的压力受力合适地夹紧在槽7中。
Description
本发明涉及一种具有在权利要求1的前序部分中所提到的特征的钻头。由EP-B1-172 148已知一种这样的钻头。这种钻头其钻尖部分是做成多件的。此外它通过径向穿过槽的夹紧螺钉夹紧。
本发明的目的在于:使开头所说的那种钻头具备更好的性能和操作更方便的夹紧装置。这个目的通过权利要求1得到解决。
这种解决方案的特征在于“自夹紧”特性,只需将钻尖部分放在槽内。夹紧的钻头部分壁厚和槽的两侧之间距离间的尺寸关系用于决定夹紧的强度。在钻头进给方向钻头部分通过槽的底部支承。
通过权利要求2使夹紧得到改善。引入辅助导向面的压紧分力和由槽壁施加的压紧分力形成一个合夹紧力,通过这个力使钻尖部分特别是在径向外缘部分压向槽的侧壁。
通过权利要求4可以产生弹性压紧特性,而且是以在权利要求5中详细阐述的方法。
权利要求7是一种解决本发明目的的变型结构形式,它与弹性的存在、由槽侧施加在钻尖镶嵌件上的夹紧压力无关或关系很小。这里作用在钻尖部分上的径向夹紧压力可以通过钻尖部分的轴向夹紧产生或强化,并且这个方案也不需要按权利要求2的辅助导向面,尽管它在这种结构方案中也能得到有利的应用。
权利要求8包含一个能方便地实现钻尖部分夹紧的解决方案。其它结构特征是权利要求9~12的内容。
以下将借助于由附图表示的实施例对本发明作较为详细的阐述。它们是图1 第一种结构形式的钻头体的侧视图,图2 图1在方向II的顶视图,图3 适合于镶入按图1和2的钻头体的钻尖部分的侧视图,图4 相应于图3箭头III方向的顶视图,图5 带镶入钻尖部分的完整钻头的、类似于图1视图的侧视图,图6 相应于图5中箭头方向VI的侧视图,图7 相应于图6中箭头方向VII的顶视图,图8 钻头体钻尖一端的透视图,图9 类似于图8的镶入钻尖部分的完整钻头的视图,图10 第一种结构形式的完整钻头的透视图,图11 按本发明的钻头的第二种结构形式的侧视图(局部剖视),图12 类似图11的不带局部剖视的侧视图,图13 相应于图11中箭头方向XIII的顶视图,图14 不带镶入钻尖部分的钻头体类似于图12的侧视图,图15 第二种结构形式的钻尖部分的侧视图(局部剖视),图16 图15中箭头方向XVI的侧视图,图17 完整的第二种结构形式的拆散的表示,图18 第二种结构形式的完整钻头的透视图。
第一种结构形式的钻头主要由钻头体1和一个镶在它端头2的钻尖部分3组成。钻尖部分3最好做成整体的,并且完全由硬质合金制成它包含切削刃4。在工作时钻头部分3得到驱动向旋转方向5旋转。
钻头体由工具钢制成。
钻头体1的端头2设有一个径向的、其平面在钻头体1的轴线方向6延伸的槽宽8的槽7。槽7用来安装钻尖部分3。它在槽的部分会有较后面还要叙述的、钻尖部分3的定心装置。
钻头体1在它的圆周上具有基本上沿轴向6分布的、并在槽7的区域向端2的方向延伸的容屑槽9。在完整的钻头中容屑槽9在钻尖部分3的区域一直向切削刃4的方向延伸。槽7的侧壁10、11至少局部相互平行,并与钻头体轴线12平行。
钻尖部分3以它的与槽侧壁10、11相对应的并与它相对峙的侧面13、14借助于插塞夹紧配合利用弹性被槽侧壁10、11所施加的压力受力合适地夹紧在槽7中。
在槽7的侧壁10、11和容屑槽9之间径向方向上各设置一个附加的、差不多径向向外回的导向面15、16,它基本上平行于钻头的轴心线12分布,并与槽侧壁10、11构成一个钝角17。钻尖部分3在相应的差不多径向向外突出的肩部20、21上具有与导向面15、16相应和相对峙的对应导向面18、19。钻尖部分3以这个凸肩20、21附加地、受力合适地在对应导向面18、19之间夹紧。钝角17的大小大约为150~160°。
钻头体1在大致中心部位平行于槽7沿轴线方向6开了一条从槽底22出发的槽(槽23)。槽23在轴线方向6的深度用来确定槽侧10、11以及附属于它的导向面15、16的径向向内的弹性特性。槽7的底面22大致上垂直于轴心线12分布。钻尖部分3以它的相应底平面24支承在槽底22上。
如果在图中所示的槽侧壁10、11以及导向面15、16朝向槽底22的区域具有一个略微朝槽底22方向收缩的取向。这与槽侧壁10、11和导向面15、16相互并与轴线12平行的实质并不矛盾,也与钻尖部分3对应面的相应取向不矛盾。然而无论如何这种收缩的取向使钻尖部分3嵌入方便。
在按图11的第二种结构形式中带槽宽28的槽7具有一个类似于第一种结构形式中槽7的结构。这里槽具有参考符号27,在这种结构形式中钻头体1在大致中心部位也开了平行于槽27并从槽底出发沿轴线方向6的槽(槽23)。在这种结构形式中槽底32从槽侧壁10、11出发从两侧径向向内逐渐升高直到轴向槽23,从而以它的底面33、34形成一个屋顶形状。钻尖部分43的底面35制成相应于槽底32的屋顶形状,它具有一个比槽底32的屋顶倾角31略小的尖顶角30。
钻尖部分43沿轴线方向6这样地相对于槽底32夹紧,特别是用螺钉拧紧,使夹紧压力在槽27的侧壁10、11上产生相向的夹紧压力。一个与轴心线12大致同心的、穿过槽23的、以它的螺纹拧入钻尖部分43的、可以从钻头尾部40的下面或后面伸进来的固定螺钉41用来夹紧钻尖部分。它可以做成紧固螺钉。在钻尖部分43上受力或材料合适地镶入一个带螺孔的套42是合适的,因为直接在硬质合金零件上做一个紧固螺孔可能会有问题。在本实施例中带螺孔的套42做成可以用榫头***槽底32的钻尖部分43的轴向附件,并用来作为钻尖部分43的径向定心零件。固定螺钉41也可以作为这种定位零件。
Claims (12)
1.钻头,带一个:
包含钻削刃的,
特别是完全由硬质合金整体组成的和
在由工具钢制成的钻头体(1)的端头(2)上可拆卸地固定的钻尖部分(3),
一其中钻头体(1)的端头(2)有一条径向的且其平面在钻头体(1)的轴线方向(6)延伸的、用来安装钻尖部分(3)的槽(7),并且在槽的区域包含钻尖部分(3)的定心装置,
一其中钻头体(1)在它的圆周上具有基本上沿轴线方向分布的,延伸到槽(7)区域的容屑槽(9),
一容屑槽在钻尖部分(3)区域内一直延伸到它的切削刃,并且
一其中槽(7)的侧壁(10,11)至少局部相互平行,并平行于轴的线(12),其特征在于:钻尖部分(3)以它的与槽侧壁(10,11)相应并且对峙侧面(13,14)借助于插塞夹紧配合利用弹性被槽侧壁(10,11)所施加的压力受力合适地夹紧在槽(7)中。
2.按权利要求1的钻头,其特征在于:
一在槽(7)侧壁(10,11)和容屑槽(9)之间半径方向上分别设置一个附加的,大致在径向方向向外回的导向面(15,16),它
基本上平行于钻头体轴线(12)分布,并
与槽侧壁(10,11)形成一个钝角(17),
钻尖部分(3)在相应地径向向外突出的肩部(20,21)具有与导向面(15,16)相应且对峙的对应导向面(18,19),和
钻尖部分(3)以其凸肩(20,21)受力合适地在对应导向面之间夹紧。
3.按权利要求2的钻头,其特征在于:
所述钝角(17)的大小为大约150°~160°。
4.按前述权利要求之任一项或几项的钻头,其特征在于:
钻头体(1)在大致中心部位开了一条平行于槽(7)并从槽底(22)出发沿轴线方向(6)的槽。
5.按权利要求4的钻头,其特征在于:它具有一个用来调整槽侧壁(10,11)或者附属于它的导向面(15,16)的弹性特性的、沿轴线方向(6)延伸的槽深。
6.按前述权利要求之任一项或几项的钻头,其特征在于:
槽(7)的底面(22)大致上垂直于轴线(12)分布,同时钻尖部分(3)以与之相应的底平面(24)支承在槽底(22)上。
7.特别是按权利要求1的钻头,其中钻头体(1)大致在中心部位开了一条平行于槽(7)并从槽底(22)出发沿轴线方向(6)的槽,其特征在于:
一槽底(32)从槽侧壁(10,11)出发从两侧径向向内逐渐升高直到轴向槽(23),从而形成一个差不多像屋顶的形状。
一钻尖部分(43)的底面(35)制成具有略小的尖顶角(30)的屋顶形状,以及
一钻尖部分(43)在轴线方向相对于槽(23)这样地夹紧在钻头体上,特别是用螺钉拧紧,使
一夹紧压力在槽(7)的侧壁(10,11)上施加一个彼此相对的夹紧压力。
8.按权利要求7的钻头,其特征在于:具有一个与轴心线大致同心的,穿过槽(23)的并以它的螺纹拧入钻尖部分(43)的、可以从钻头尾部伸进来的固定螺钉(41)。
9.按权利要求8的钻头,其特征在于:
一个拉紧螺钉作为固定螺钉(41)。
10.按前述权利要求之任一项或几项的钻头,其特征在于:
具有一个受力或材料合适的镶入钻尖部分的带螺孔的套(42)。
11.按前述权利要求之任一项或几项的钻头,其特征在于:
一个可以榫***槽底(32)的钻尖部分(43)的轴向附件作为径向定心零件。
12.按前述权利要求之任一项或几项的钻头,其特征在于:带螺孔的套(42)作为定心零件。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DEP4435857.1 | 1994-10-07 | ||
DE4435857A DE4435857A1 (de) | 1994-10-07 | 1994-10-07 | Bohrer mit einem Bohrspitzenteil |
Publications (2)
Publication Number | Publication Date |
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CN1160370A true CN1160370A (zh) | 1997-09-24 |
CN1063373C CN1063373C (zh) | 2001-03-21 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN95195527A Expired - Lifetime CN1063373C (zh) | 1994-10-07 | 1995-09-02 | 带一个钻头尖端部分的钻头 |
Country Status (11)
Country | Link |
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US (1) | US5904455A (zh) |
EP (1) | EP0784524B1 (zh) |
JP (1) | JP3490451B2 (zh) |
KR (1) | KR100374918B1 (zh) |
CN (1) | CN1063373C (zh) |
AT (1) | ATE198059T1 (zh) |
CA (1) | CA2202033C (zh) |
DE (2) | DE4435857A1 (zh) |
ES (1) | ES2154734T3 (zh) |
RU (1) | RU2136451C1 (zh) |
WO (1) | WO1996011079A1 (zh) |
Cited By (12)
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CN101927372A (zh) * | 2009-06-23 | 2010-12-29 | 山特维克知识产权股份有限公司 | 松顶部式钻削刀具 |
CN103317169A (zh) * | 2012-03-22 | 2013-09-25 | 钴碳化钨硬质合金公司 | 具有可更换的切削镶片的切削刀具及其可更换的切削镶片 |
CN103331474A (zh) * | 2013-06-30 | 2013-10-02 | 北京迪蒙集智科技有限公司 | 一种可换尖圆柱铣刀 |
CN104096884A (zh) * | 2013-04-03 | 2014-10-15 | 钴碳化钨硬质合金公司 | 用于旋转刀具的联接部件、特别是切削头以及此类型的旋转刀具 |
US10040132B2 (en) | 2015-06-24 | 2018-08-07 | Kennametal Inc. | Rotary tool, in particular a drill for such a rotary tool |
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JPH03234408A (ja) * | 1990-02-05 | 1991-10-18 | Sumitomo Electric Ind Ltd | スローアウェイ式ドリル |
US5338135A (en) * | 1991-04-11 | 1994-08-16 | Sumitomo Electric Industries, Ltd. | Drill and lock screw employed for fastening the same |
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- 1994-10-07 DE DE4435857A patent/DE4435857A1/de not_active Withdrawn
-
1995
- 1995-09-02 KR KR1019970702122A patent/KR100374918B1/ko not_active IP Right Cessation
- 1995-09-02 AT AT95931976T patent/ATE198059T1/de active
- 1995-09-02 WO PCT/EP1995/003458 patent/WO1996011079A1/de active IP Right Grant
- 1995-09-02 US US08/809,839 patent/US5904455A/en not_active Expired - Lifetime
- 1995-09-02 EP EP95931976A patent/EP0784524B1/de not_active Expired - Lifetime
- 1995-09-02 RU RU97107475A patent/RU2136451C1/ru active
- 1995-09-02 JP JP51228196A patent/JP3490451B2/ja not_active Expired - Lifetime
- 1995-09-02 CN CN95195527A patent/CN1063373C/zh not_active Expired - Lifetime
- 1995-09-02 DE DE59508903T patent/DE59508903D1/de not_active Expired - Lifetime
- 1995-09-02 ES ES95931976T patent/ES2154734T3/es not_active Expired - Lifetime
- 1995-09-02 CA CA002202033A patent/CA2202033C/en not_active Expired - Lifetime
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CN103317169A (zh) * | 2012-03-22 | 2013-09-25 | 钴碳化钨硬质合金公司 | 具有可更换的切削镶片的切削刀具及其可更换的切削镶片 |
US10058930B2 (en) | 2013-04-03 | 2018-08-28 | Kennametal Inc. | Tool head for rotary cutting tool and rotary cutting tool including same |
CN104096884A (zh) * | 2013-04-03 | 2014-10-15 | 钴碳化钨硬质合金公司 | 用于旋转刀具的联接部件、特别是切削头以及此类型的旋转刀具 |
CN103331474A (zh) * | 2013-06-30 | 2013-10-02 | 北京迪蒙集智科技有限公司 | 一种可换尖圆柱铣刀 |
US10052698B2 (en) | 2013-10-15 | 2018-08-21 | Kennametal Inc. | Modular carrier tool and tool head |
US10040132B2 (en) | 2015-06-24 | 2018-08-07 | Kennametal Inc. | Rotary tool, in particular a drill for such a rotary tool |
US10071430B2 (en) | 2015-10-07 | 2018-09-11 | Kennametal Inc. | Cutting head, rotary tool and support for the rotary tool and for the accommodation of the cutting head |
CN110461516A (zh) * | 2017-04-04 | 2019-11-15 | 博泰克精密钻孔技术有限公司 | 包括可更换切削盘的钻孔刀具 |
US11565356B2 (en) | 2017-07-13 | 2023-01-31 | Kennametal Inc. | Method for producing a cutting head |
US10799958B2 (en) | 2017-08-21 | 2020-10-13 | Kennametal Inc. | Modular rotary cutting tool |
CN109226833A (zh) * | 2018-09-04 | 2019-01-18 | 东莞艾瑞克精密工具有限公司 | 钻头 |
US11911830B2 (en) | 2019-06-13 | 2024-02-27 | Kennametal India Ltd. | Indexable drilling inserts |
Also Published As
Publication number | Publication date |
---|---|
JPH10506851A (ja) | 1998-07-07 |
DE59508903D1 (de) | 2001-01-18 |
RU2136451C1 (ru) | 1999-09-10 |
JP3490451B2 (ja) | 2004-01-26 |
ATE198059T1 (de) | 2000-12-15 |
KR100374918B1 (ko) | 2003-06-12 |
ES2154734T3 (es) | 2001-04-16 |
EP0784524A1 (de) | 1997-07-23 |
CA2202033C (en) | 2006-05-09 |
DE4435857A1 (de) | 1996-04-11 |
CA2202033A1 (en) | 1996-04-18 |
CN1063373C (zh) | 2001-03-21 |
US5904455A (en) | 1999-05-18 |
EP0784524B1 (de) | 2000-12-13 |
KR970706094A (ko) | 1997-11-03 |
WO1996011079A1 (de) | 1996-04-18 |
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