CN1204976A - 用于切削加工的刀具 - Google Patents

用于切削加工的刀具 Download PDF

Info

Publication number
CN1204976A
CN1204976A CN97191245A CN97191245A CN1204976A CN 1204976 A CN1204976 A CN 1204976A CN 97191245 A CN97191245 A CN 97191245A CN 97191245 A CN97191245 A CN 97191245A CN 1204976 A CN1204976 A CN 1204976A
Authority
CN
China
Prior art keywords
cutting tip
targeting part
projection
recess
cutter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN97191245A
Other languages
English (en)
Other versions
CN1086619C (zh
Inventor
马蒂亚斯·贝里隆德
弗雷德里克·伦德贝里
英厄拉·斯文松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seco Tools AB
Original Assignee
Seco Tools AB
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20403865&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CN1204976(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Seco Tools AB filed Critical Seco Tools AB
Publication of CN1204976A publication Critical patent/CN1204976A/zh
Application granted granted Critical
Publication of CN1086619C publication Critical patent/CN1086619C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • B23B51/02Twist drills
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2205/00Fixation of cutting inserts in holders
    • B23B2205/02Fixation using an elastically deformable clamping member
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2250/00Compensating adverse effects during turning, boring or drilling
    • B23B2250/12Cooling and lubrication
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/02Connections between shanks and removable cutting heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/14Configuration of the cutting part, i.e. the main cutting edges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/50Drilling tools comprising cutting inserts
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/03Processes
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/78Tool of specific diverse material
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/89Tool or Tool with support
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/89Tool or Tool with support
    • Y10T408/907Tool or Tool with support including detailed shank
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/89Tool or Tool with support
    • Y10T408/909Having peripherally spaced cutting edges
    • Y10T408/9095Having peripherally spaced cutting edges with axially extending relief channel
    • Y10T408/9097Spiral channel
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/89Tool or Tool with support
    • Y10T408/909Having peripherally spaced cutting edges
    • Y10T408/9098Having peripherally spaced cutting edges with means to retain Tool to support

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Milling Processes (AREA)

Abstract

本发明涉及一种用于切削加工的刀具和切削部分。这种刀具在操作中最好沿其纵向中心轴线旋转。这种刀具包括导向部分(12)和切削部分(11)。导向部分有一前端面(24),切削部分有一支撑面(16),二表面以可分式互相抵靠。前端面和支撑面包括配合凸块(60)和凹口(50)。二者通过卡口式连接以传递加工过程中产生的切削力。本发明也涉及一导向部分和一切削部分,以及将切削部分安装在导向部分上的方法。

Description

用于切削加工的刀具
技术领域
本发明涉及一种用于旋转切削加工的刀具,其中包括刀具的导向部分和切削部分。导向部分有一个前端面,切削部分有一个支撑面,在一个基本上为径向的平面里,前端面与支撑面以可分离的方式相互抵靠。导向部分和切削部分包括彼此配合而将二者固定的装置。本发明还涉及切削部分和导向部分,以及将切削部分安装在导向部分上的一种方法。
现有技术
大家已经知道,在各种不同的加工切削刀具中,尤其是在切削金属工件的切削加工的刀具中使用可互换刀刃。但是,这项技术在运用到绕纵轴旋转的铣刀和钻刀时,由于操作的原因使其实际应用受到限制。
通过DE-PS-367,010和US-A-2,259,611,大家已经知道在钻床中使用可锁固钻头,其中钻头分别以燕尾型和压配合来紧固。但是,由于其扭矩传递能力差和安装拆卸不方便等缺点,削弱了这种已知刀具的使用。
本发明的目的之一是为可互换刀刃的铣刀和钻刀提供一种设计,其中该设计消除了已有技术中的问题。
本发明的另一个目的是提供一种刚性连接的刀具,尤其是钻刀和铣刀,其中,切削部分与导向部分通过卡口式连接而配合。
本发明的再一个目的是提供一种刚性连接的刀具,尤其是钻刀和铣刀,其中,切削部分能够用来容易地更换,从而避免了费时的拧紧或焊接。
本发明的再一个目的是提供一种切削部分自动对中的刀具。
以上这些目的和其它目的已经由一种刀具和钻头来实现,比如参考附图在后附的权利要求书中所限定的刀具和钻头就是如此。
附图说明
图1是根据本发明的一种钻刀的分解图。
图2是根据本发明的切削部分的底视图。
图3为图2中沿Ⅲ-Ⅲ线的剖面的切削部分的侧视图。
图3 A为切削部分的仰视立体图。
图4为根据本发明的导向部分的前端面的俯视图。
图5为沿图4中Ⅵ-Ⅵ线所取的剖面的钻杆的侧视图。
图6、7和图8为这种刀具的一种卡口式配合的剖面图。
图9是根据图1的刀具的部分放大图。
本发明的详细描述
根据本发明的刀具10的实施例,如图1中所示,又称为螺旋钻刀,它包含切削部分或钻头11和导向部分12,该钻刀有一个旋转方向R。
在钻头11的远离导向部分12的前端至少有一个刀刃19,根据不同的应用领域,刀头的设计也不同。
钻头11由硬质材料制成,优选为硬质合金,而且最好是注入成型的硬质合金,钻头11上有两个主后刀面15、一个支撑面16以及连接二者的第一弯曲表面41和第二弯曲表面13。所有这些表面和与之相关联的刀刃都与钻头成为一体,因而以同一种材料制成,就是说,优选为注入成型的硬质合金。第二弯曲表面或排屑面18与主后刀面15的交线形成第一切削刃19,其上最好有强化槽,这一点图中没有显示。第一弯曲表面41和排屑面18的交线形成第二切削刃。对于具有直的排屑面的导向部分,钻头的排屑面可以相应调整。排屑面之间的径向外表部分由突出的棱面41组成,每个棱面的周向尺寸为G。钻头的最大直径是第二切削刃刃径向极点之间的距离。钻头的高度基本上等于钻头的最大直径,以便使钻头与导向部分的结合面由于切屑所导致的磨损量最小。冲洗孔23基本上平行于转轴线22,从支撑面16穿过钻头到达相应的主后刀面15的孔口处。
按照图2、3和图3A,支撑面16基本上是一个平面,但包含一个凹口50,凹口位于支撑面16与每个棱面41的套面之间的转折处。每个凹口50包括与套面垂直相连的第一自由表面51,它与第二自由表面52垂直相连,第二自由表面52又与图6中的第一导引表面53形成锐角α,见图6,第一导引表面53与平行于回转轴线22的第二导引表面54相接,第二导引表面54通过一个倒圆或导入斜面55与支撑面16相连。图3A中的凹口50有一个止推面56,它平行于回转轴线22,并且恰当地处在与该回转轴线相交的轴向平面内。凹口50沿切线方向从排屑面18延伸至相关的棱面41的切线长度L的大约一半的位置。
这种刀具的导向部分由杨氏模量低于硬质合金的材料制成。导向部分有螺旋形的排屑面18或者直的排屑面,这些排屑面能够延长至整个导向部分或其中的一部分。导向部分12在面向钻头11的一端有一个前端面24,该前端面24可与钻头11的支撑面16相抵靠,支撑面的最大直径大于前端面的最大直径,以便使钻头与导向部分之间的结合面由于切屑所致的磨损量最小。前端面24基本上是一个平面,但包含一个突块60,其位置处在前端面与每个棱面41的套面之间的过渡处。凸块高度比凹口50的深度略小。每个凸块60包含与该套面垂直相连的第一自由表面61,该表面与第二自由表面62垂直相连,第二自由表示62又与第一导引表面63形成尖角π,第一导引表面63与平行于回转轴线22的第二导引表面64相连,第二导引表面64通过一个倒圆65与前端面相连。凸块60有一个止推面66,如图9所示,它平行于轴线22,且适当地处在与该轴线相交的轴向平面里。前端面的最小直径小于钻头的最大直径,但大于钻头的最小直径。凸块60沿切线方向从排屑槽18延伸至相关棱面41切线长度G的大约一半的位置。
止推面56和66各自应尽可能远离回转轴线以获得最佳的动量传递,也就是说,它们沿直径方向相对设置。钻头必须对称成型,以便在应力变化的条件下保持刀具对中,也就是说,以便保持钻头相对于导向部分对中。凸块60和凹口50沿刀具的旋转方向R与相联的刀刃19保持一定距离,并且基本上处在相联刀刃19的后部。
钻头11安装在导向部分12上的方法如下:钻头11向着导向部分12的方向引入,以便每个凸块60进入相关的排屑槽,并且支撑面16与前端面24相抵靠;然后,在小于360°、最好是小于60°的角度φ以内,沿方向R相对于导向部分旋转钻头,以便使凸块以滑动配合进入凹口,直到止推面56和66相互抵靠为止。现在,钻头11以令人满意的方式固定在导向部分12上面。这样,预制的排屑槽18的空间用来作为这种卡口式配合的进口和出口。
当更换钻头11时,安装步骤反过来即可。然后从导向部分12上取出钻头11并进行更换,最好借助于一种与钻头上的排屑槽啮合的适当的键,在安装时,最好也使用该键与键的夹具。
在钻削过程中必须啮合的表面是53和63以及支撑面16和前端面24。表面53和63相配合以保持钻头沿进给方向不松动,比如在退刀时不松动。表面53和63最好设计成这样,使它们的配合由于滑动装配让凸块60产生某种挠变。表面54和64可允许存在有限的接触,这种接触意味着在倒圆65处力矩增加。钻头在导向部分中自动对中,也就是说,如果在加工操作中发生错位,钻头将移动使其轴线与回转轴线22重合。表面55将允许导向部分有一个相对大的倒圆角65。表面52和62在切削操作中不应相互接触,这一点是通过使表面53延伸来实现的。间隙表面51和61在切削操作中不应接触,这样在二表面之间经常存在一个间隔P,间隔P为0.1mm-1.0mm。支撑面16在切削操作中由于进给力的作用压迫前端面24,这意味着凸块的塑性挠变趋于某些减少,但是由于进给口压迫前端面24使凸块沿径向向内弯曲,因而又抵消了凸块的塑性挠变的减小程度。
本发明也可用于铣刀,最好在其钻头上形成一层比如Al2O3、TiN和/或TiCN的层。在某些应用场合,人们往往在其刀刃上形成一层超硬质材料如CBN或PCD。另外,陶瓷材料可用在注入成型的钻头上。
本发明绝不限于上述实施例,而可在所附的权利要求的范围内作出任意变化。

Claims (11)

1.一种用于金属工件的旋转切削加工刀具,包括导向部分(12)和切削部分(11),其中导向部分有一个刀柄部分(40)、一个前端面(24)和排屑槽(18),切削部分有一个支撑面(16),它与前端面(24)形成可分式抵靠连接,其中,导向部分和切削部分包括相互配合以将该二部分固定在一起的装置,其特征在于,这种装置包括相配合的凸块(60)和凹口(50),在将切削部分安装在导向部分上的过程中,使凸块和凹口彼此相对旋转,以形成卡口式连接,该旋转在一个角度范围(φ)内进行,并且,排屑槽(18)的预制的空间作为卡口式连接的进口和出口。
2.根据权利要求1所述的刀具,其特征在于,提供与切削部分和导向部分边缘相接的配合凸块(60)和凹口(50),旋转角(φ)小于360°,最好小于60°。
3.根据权利要求1或2所述的刀具,其特征在于,配合凸块(60)和凹口(50)包括相对于刀具的回转轴线(22)成一定角度的表面(53,63),该表面可吸收沿刀具进给方向的向前的推力。
4.根据权利要求1、2或3所述的刀具,其特征在于,导向部分(12)的杨氏模量小于切削部分(11)的杨氏模量,以便在安装和加工过程中凸块(60)沿刀具径向能够产生塑性弯曲;凸块(60)和凹口(50)沿刀具旋转方向(R)与相关的刀刃(19)保有一定距离且基本上处在相关刀刃(19)的后部。
5.根据以上权利要求中任何一项所述的刀具,其特征在于,凸块(60)和凹口(50)沿切线方向从排屑槽(18)延伸到相关棱面(41)切线长度(G)的大约一半的位置。
6.根据以上权利要求中任何一项所述的刀具,其特征在于,在切削部分和导向部分最外缘二表面(51,61)之间设置有一间隔(P),二表面彼此相对。
7.用于旋转排屑加工的切削部分,其中,该切削部分有一个环形的基本形状并至少有一个刀刃(19);刀刃(19)与切削部分(11)成一体,切削部分(11)有一支撑面(16),支撑面处在远离刀刃(19)的一端,该切削部分至少包括一个排屑槽(18);其特征在于,切削部分的支撑面(16)包含形成卡口式连接的一部分的装置(50),该卡口式连接能够在一定的角度范围(φ)内旋转,并且该装置从排屑槽(18)沿切线方向延伸。
8.根据权利要求7所述的切削部分,其特征在于,该装置由凸块(60)或凹口(50)组成,凸块(60)或凹口(50)与切削部分边缘相连,沿直径方向相对设置,并且,该装置从排屑槽(18)沿切线方向延伸到相关棱面(41)切线长度(G)的大约一半的位置,角度(φ)小于360°,最好小于60°。
9.用于旋转排屑加工刀具的导向部分,包括刀柄部分(40)、排屑槽(18)和前端面(24),该导向部分有一中心轴线(22);其特征在于,导向部分的前端面(24)包括组成一部分卡口式连接的装置(60),以及该装置沿切线方向从相关的排屑槽(18)延伸。
10.根据权利要求9所述的导向部分,其特征在于,该装置由凸块(60)或凹口(50)组成,该凸块或凹口与导向部分的外缘相连,沿径向相对设置。
11.将切削部分装配到导向部分上以形成一个刀具的方法,该刀具用于旋转切削加工金属工件,该刀具包括一个导向部分(12)和一个切削部分(11),其中导向部分有一个刀柄部分(40)、一个前端面(24)和排屑槽(18);其中切削部分有一支撑面(16),该支撑面可分离地抵靠在前端面上,其中导向部分和切削部分包括彼此配合以固定该一部分的装置,其特征在于,该方法包括下列步骤:
在切削部分(11)和导向部分(12)上设置互补的凸块(60)和凹口(50);
沿朝向导向部分(12)的方向将切削部分(11)引入以便每个凸块(60)进入一相对的排屑槽(18),以使支撑面(16)抵靠于前端面(24);
相对于导向部分沿方向(R)在一定角度范围(φ)内转动切削部分(11),以便每个凸块能够滑入相关的凹口直到每对凸块和凹口的止推面(56,66)彼此抵靠为止。
CN97191245A 1996-09-13 1997-09-09 用于切削加工的刀具及其装配方法 Expired - Lifetime CN1086619C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE96033253 1996-09-13
SE9603325A SE511429C2 (sv) 1996-09-13 1996-09-13 Verktyg, skärdel, verktygskropp för skärande bearbetning samt metod för montering av skärdel till verktygskropp

Publications (2)

Publication Number Publication Date
CN1204976A true CN1204976A (zh) 1999-01-13
CN1086619C CN1086619C (zh) 2002-06-26

Family

ID=20403865

Family Applications (1)

Application Number Title Priority Date Filing Date
CN97191245A Expired - Lifetime CN1086619C (zh) 1996-09-13 1997-09-09 用于切削加工的刀具及其装配方法

Country Status (9)

Country Link
US (3) US5988953A (zh)
EP (2) EP0874706B1 (zh)
JP (1) JP3875272B2 (zh)
KR (1) KR100522987B1 (zh)
CN (1) CN1086619C (zh)
DE (2) DE69726835T2 (zh)
HK (1) HK1017297A1 (zh)
SE (1) SE511429C2 (zh)
WO (1) WO1998010881A1 (zh)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100455390C (zh) * 2004-01-14 2009-01-28 山特维克知识产权股份有限公司 用于除切屑加工的可旋转刀具
CN101927371A (zh) * 2009-06-23 2010-12-29 山特维克知识产权股份有限公司 用于去屑加工的钻削刀具和用于所述钻销刀具的松顶部
CN102413974A (zh) * 2009-03-19 2012-04-11 埃莫克精密工具厂里查德格林普尔有限责任两合公司 模块化钻
CN101801576B (zh) * 2007-09-14 2012-09-12 彗星集团有限公司 具有钻头冠部的钻孔工具
CN101733451B (zh) * 2009-12-07 2012-10-10 株洲钻石切削刀具股份有限公司 可换头硬质合金麻花钻
CN103212735A (zh) * 2012-01-18 2013-07-24 钴碳化钨硬质合金公司 旋转刀具以及用于此类旋转刀具的切削头
CN103328141A (zh) * 2011-01-26 2013-09-25 伊斯卡有限公司 切削刀具
USD798922S1 (en) 2015-10-07 2017-10-03 Kennametal Inc. Cutting head for rotary drill
USD798921S1 (en) 2015-10-07 2017-10-03 Kennametal Inc. Cutting head for modular drill
US9937567B2 (en) 2015-10-07 2018-04-10 Kennametal Inc. Modular drill
US10040132B2 (en) 2015-06-24 2018-08-07 Kennametal Inc. Rotary tool, in particular a drill for such a rotary tool
US10052698B2 (en) 2013-10-15 2018-08-21 Kennametal Inc. Modular carrier tool and tool head
US10058930B2 (en) 2013-04-03 2018-08-28 Kennametal Inc. Tool head for rotary cutting tool and rotary cutting tool including same
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
US10213845B2 (en) 2014-04-08 2019-02-26 Kennametal Inc. Rotary tool, in particular a drill, and a cutting head for said rotary tool
US10537943B2 (en) 2017-03-27 2020-01-21 Kennametal Inc Modular rotary tool and modular tool system
CN110732708A (zh) * 2019-11-12 2020-01-31 苏州沃钛工业技术有限公司 双面限位斜穿锁紧换头钻
US10799958B2 (en) 2017-08-21 2020-10-13 Kennametal Inc. Modular rotary cutting tool
CN112388036A (zh) * 2020-11-05 2021-02-23 成都工具研究所有限公司 一种螺旋压力面组合及其连接方法
CN113103385A (zh) * 2019-12-25 2021-07-13 三星钻石工业株式会社 接合物
US20220118530A1 (en) * 2018-02-02 2022-04-21 J.H. Fletcher & Co. Quick-release coupling for drilling and related methods
US11565356B2 (en) 2017-07-13 2023-01-31 Kennametal Inc. Method for producing a cutting head
US11911830B2 (en) 2019-06-13 2024-02-27 Kennametal India Ltd. Indexable drilling inserts

Families Citing this family (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE511429C2 (sv) 1996-09-13 1999-09-27 Seco Tools Ab Verktyg, skärdel, verktygskropp för skärande bearbetning samt metod för montering av skärdel till verktygskropp
IL120948A0 (en) * 1997-05-29 1997-09-30 Iscar Ltd Cutting tool assembly
DE19748987B4 (de) * 1997-11-06 2007-11-22 Robert Bosch Gmbh Bohrwerkzeug insbesondere für drehschlagendes Bohren von vorzugsweise Gestein
IL125766A (en) * 1998-08-13 2002-12-01 Iscar Ltd The barrel of a tool and a rotating cutting head for placing on it in the form of a self-lining
DE19914170C1 (de) 1999-03-29 2000-03-16 Kennametal Inc Bohrer mit auswechselbarem Schneideinsatz
PT1200222E (pt) * 1999-08-03 2003-08-29 Kennametal Inc Broca com cabeca de roscas substituivel
SE9903685L (sv) 1999-10-14 2001-04-15 Seco Tools Ab Verktyg för roterande skärande bearbetning, verktygsspets samt metod för tillverkning av verktygsspetsen
SE519575C2 (sv) * 2000-04-11 2003-03-18 Sandvik Ab Borrdkär för metallborrning
SE519895C2 (sv) * 2000-07-06 2003-04-22 Sandvik Ab Spets samt roterbart verktyg med utbytbar spets vid verktygets spånavverkande fria ände
DE10042990A1 (de) * 2000-09-01 2002-03-28 Kennametal Inc Rundlauf-Schneidwerkzeug, z. B. Bohrer
US6485235B1 (en) 2001-05-08 2002-11-26 Allied Machine & Engineering Corp. Cutting tool assembly with replaceable cutting head
SE523205C2 (sv) 2001-06-06 2004-04-06 Sandvik Ab Roterbart verktyg med utbytbar skärspets vid verktygets spånavverkande fria ände
EP1273396B1 (de) * 2001-07-06 2009-12-30 Robert Bosch Gmbh Meissel bzw. Hammerbohrer
US20030039523A1 (en) * 2001-07-13 2003-02-27 Kemmer Hartmetallwerkzeuge Gmbh Drilling or boring tool
DE10142560A1 (de) * 2001-08-30 2003-03-20 Hilti Ag Bohrkopf mit einem Schneidelement
US6506003B1 (en) * 2001-10-02 2003-01-14 Kennametal Inc. Cutting tool
DE10207257B4 (de) * 2002-02-21 2021-02-18 Kennametal Inc. Rundlaufschneidwerkzeug mit auswechselbarem Schneideinsatz
US20030176868A1 (en) * 2002-02-22 2003-09-18 Pepper John R. Long bone reaming apparatus and method
US6582164B1 (en) 2002-02-25 2003-06-24 Kennametal Inc. Roller twist drill
DE20205861U1 (de) * 2002-04-03 2002-09-19 TBT Tiefbohrtechnik GmbH, 72581 Dettingen Bohreinrichtung mit einem mehrschneidigen Bohrwerkzeug, insbesondere Tiefbohrwerkzeug
US7004691B2 (en) * 2002-11-15 2006-02-28 Unitac Incorporated Deep hole cutter
DE10311508A1 (de) * 2003-03-15 2004-09-30 Kennametal Inc. Rotierendes Zerspanungswerkzeug
DE10314889A1 (de) * 2003-04-01 2004-10-14 Komet Group Holding Gmbh Werkzeug für Werkzeugmaschinen
US7547166B2 (en) * 2003-11-07 2009-06-16 Allied Machine & Engineering Corp. Spade drill insert having helical margins
US7011478B2 (en) * 2003-11-07 2006-03-14 Allied Machine & Engineering Corp. Spade drill insert having helical margins
US7018145B2 (en) * 2003-11-07 2006-03-28 Allied Machine & Engineering Corp. Spade drill insert having curved cutting edges
US7131799B2 (en) * 2003-12-19 2006-11-07 Allied Machine & Engineering Corp. Cutting insert with helical geometry and holder therefor
SE527653C2 (sv) * 2004-05-05 2006-05-02 Seco Tools Ab Borr försedd med stödlister
IL162147A (en) * 2004-05-24 2008-03-20 Gil Hecht Drill with interchangeable head
US20060015110A1 (en) * 2004-07-15 2006-01-19 Pepper John R Cutting device
IL163679A (en) * 2004-08-23 2009-02-11 Gil Hecht Buy a drill
US7309196B2 (en) * 2004-10-05 2007-12-18 Kennametal Inc. Modular drill
IL164888A (en) * 2004-10-28 2009-07-20 Iscar Ltd Cutting tool and cutting head for it
JP2006167871A (ja) * 2004-12-16 2006-06-29 Sumitomo Electric Hardmetal Corp 刃先交換式ドリル
SE528255C2 (sv) * 2005-05-02 2006-10-03 Sandvik Intellectual Property Verktyg samt lösbar kropp för verktyg för spånavskiljande bearbetning med ås- och rillformade kopplingsmedel
US8637127B2 (en) 2005-06-27 2014-01-28 Kennametal Inc. Composite article with coolant channels and tool fabrication method
JP2007038362A (ja) * 2005-08-04 2007-02-15 Osg Corp 切削工具
US7687156B2 (en) 2005-08-18 2010-03-30 Tdy Industries, Inc. Composite cutting inserts and methods of making the same
ATE512278T1 (de) 2006-04-27 2011-06-15 Tdy Ind Inc Modulare erdbohrmeissel mit fixiertem schneider und modulare erdbohrmeisselkörper mit fixiertem schneider
MX2009003114A (es) 2006-10-25 2009-06-08 Tdy Ind Inc Articulos que tienen resistencia mejorada al agrietamiento termico.
DE102006062429A1 (de) 2006-12-27 2008-07-03 Günther & Co. GmbH Tieflochbohrer mit Stützring und Verfahren zu dessen Herstellung
US20080166194A1 (en) * 2007-01-09 2008-07-10 Durfee Laverne R Drill bit
US20100003094A1 (en) * 2007-01-09 2010-01-07 Irwin Industrial Tool Company Drill bit
US20080181735A1 (en) * 2007-01-25 2008-07-31 Ting Fong Electric & Machinery Co., Ltd. Method for manufacturing drill cutters and structure thereof
IL181295A (en) 2007-02-12 2011-07-31 Iscar Ltd A cutting tool that includes a self-locking release bar head
US7846551B2 (en) 2007-03-16 2010-12-07 Tdy Industries, Inc. Composite articles
CN101284321B (zh) * 2007-04-09 2010-09-29 陈�胜 复合式螺丝攻及其制造方法
DE102007050471A1 (de) * 2007-10-23 2009-04-30 MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG Werkzeug zur spanenden Bearbeitung von Werkstücken
WO2008072840A2 (en) * 2007-11-05 2008-06-19 Taegutec. Ltd. Rotary cutting tool
US8070397B2 (en) * 2008-02-19 2011-12-06 Irwin Industrial Tool Company Self feed bit
SE533652C2 (sv) * 2008-04-14 2010-11-23 Seco Tools Ab Verktyg för roterande skärande bearbetning med utbytbart skärhuvud
SE532280C2 (sv) * 2008-04-14 2009-12-01 Seco Tools Ab Verktyg, verktygskropp och skärhuvud
DE102009018327A1 (de) * 2008-04-25 2009-11-05 Gühring Ohg Drehantreibbares Werkzeug zur spanabtragenden Bearbeitung mit einem Schneidorgan
US8221517B2 (en) 2008-06-02 2012-07-17 TDY Industries, LLC Cemented carbide—metallic alloy composites
US8790439B2 (en) 2008-06-02 2014-07-29 Kennametal Inc. Composite sintered powder metal articles
US8322465B2 (en) 2008-08-22 2012-12-04 TDY Industries, LLC Earth-boring bit parts including hybrid cemented carbides and methods of making the same
US8025112B2 (en) 2008-08-22 2011-09-27 Tdy Industries, Inc. Earth-boring bits and other parts including cemented carbide
DE102009044994A1 (de) 2009-03-18 2010-09-23 Gühring Ohg Schneidwerkzeug mit austauschbarem Schneideinsatz
IL197899A (en) * 2009-04-05 2013-02-28 Iscar Ltd Cutting tool and tool holder for it
US8272816B2 (en) 2009-05-12 2012-09-25 TDY Industries, LLC Composite cemented carbide rotary cutting tools and rotary cutting tool blanks
US20100307640A1 (en) * 2009-06-03 2010-12-09 Durfee La Verne R Cutting edge and cutting tool
SE533850C2 (sv) * 2009-06-23 2011-02-08 Sandvik Intellectual Property Borrverktyg av löstoppstyp
US8308096B2 (en) 2009-07-14 2012-11-13 TDY Industries, LLC Reinforced roll and method of making same
DE102009044995B8 (de) 2009-09-24 2021-07-22 Gühring KG Schneideinsatzträger, Schneideinsatz und drehangetriebenes Schneidwerkzeug
WO2011055372A2 (en) * 2009-11-09 2011-05-12 No Screw Ltd. Cutting tool, cutting tool holder, and a cutting insert therefor
US9643236B2 (en) 2009-11-11 2017-05-09 Landis Solutions Llc Thread rolling die and method of making same
CN102159350B (zh) * 2009-12-08 2014-12-10 Osg株式会社 不重磨式旋转工具
JP4954331B2 (ja) * 2009-12-08 2012-06-13 オーエスジー株式会社 スローアウェイ式回転工具
SE534648C2 (sv) 2010-03-26 2011-11-08 Sandvik Intellectual Property Roterbart verktyg för spånavskiljande bearbetning samt löstopp och grundkropp härför
US8800848B2 (en) 2011-08-31 2014-08-12 Kennametal Inc. Methods of forming wear resistant layers on metallic surfaces
US9016406B2 (en) 2011-09-22 2015-04-28 Kennametal Inc. Cutting inserts for earth-boring bits
USD665431S1 (en) * 2012-02-22 2012-08-14 Hon Hai Precision Industry Co., Ltd. Cutting tool
DE102013201062B4 (de) 2013-01-23 2018-09-13 Kennametal Inc. Bohrspitze
US9120164B2 (en) 2013-04-29 2015-09-01 Iscar, Ltd. Cutting tool having a tool coupling with offset peripheral and central coupling threads and method of assembly thereof
DE102014212714B4 (de) 2014-07-01 2022-02-17 Kennametal Inc. Bohrerkopf
USD756430S1 (en) 2015-02-13 2016-05-17 Taegutec, Ltd. Drill head
JP6620939B2 (ja) * 2016-04-18 2019-12-18 株式会社NejiLaw 切削用工具
JP1568742S (zh) * 2016-09-09 2017-02-06
EP3305448B1 (en) 2016-09-23 2020-11-04 Milwaukee Electric Tool Corporation Hole saw arbor assembly
JP6614541B2 (ja) * 2016-10-07 2019-12-04 住友電工ハードメタル株式会社 回転切削刃用素材及びその製造方法
JP6629990B2 (ja) * 2016-11-15 2020-01-15 住友電工ハードメタル株式会社 切削工具
US11235397B2 (en) 2016-12-16 2022-02-01 Kennametal Inc. Side-activated modular drill
US10730119B2 (en) 2017-01-06 2020-08-04 Milwaukee Electric Tool Corporation Hole saw
USD973733S1 (en) 2017-08-15 2022-12-27 Milwaukee Electric Tool Corporation Hole saw
USD874899S1 (en) * 2018-05-14 2020-02-11 Fu-Hsing Lin Drill tool
DE102019116160A1 (de) 2018-06-20 2019-12-24 Kennametal Inc. Seitlich geschlossener modularer Bohrer mit federunterstütztem Auswurf
US11471952B2 (en) 2020-03-19 2022-10-18 Kennametal Inc. Cutting tool having replaceable cutting head and method of securing a replaceable cutting head
US11813679B2 (en) 2021-02-10 2023-11-14 Taegutec Ltd. Insert holder and cutting tool assembly including the same
US11883888B2 (en) 2021-06-28 2024-01-30 Kennametal Inc. Modular drill with enhanced bump-off capability
JP1715992S (ja) * 2021-08-17 2022-05-27 切削工具
DE102022106206A1 (de) 2022-03-16 2023-09-21 Gühring KG Schneidwerkzeug mit Schneidkopf und Schneidkopfmitnehmer
WO2023175004A1 (de) * 2022-03-16 2023-09-21 Gühring KG Schneidwerkzeug mit schneidkopf und schneidkopfmitnehmer

Family Cites Families (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US260314A (en) 1882-06-27 parks
DE367010C (de) * 1923-01-15 Georg Samuel Dipl Ing Spiralbohrer mit schwalbenschwanzfoermig eingesetztem Kopf aus Schnellstahl
US215744A (en) * 1879-05-27 Improvement in augers
DE94340C (de) * 1896-09-27 1897-10-16 Quergetheilter Spiralbohrer mit auswechselbarem Spitzentheil
US756339A (en) * 1903-11-14 1904-04-05 William R Down Composite drill.
US932071A (en) * 1908-12-10 1909-08-24 Arthur Haendler Spiral drill.
US993395A (en) 1909-02-16 1911-05-30 Sidney Newbold Drill.
US1413280A (en) * 1921-04-28 1922-04-18 Eclipse Interchangeable Counte Locking device for boring or other tools
US1461548A (en) 1921-05-05 1923-07-10 Claude A West Metal-working tool
DE384720C (de) * 1921-11-11 1923-11-08 Georg Samuel Dipl Ing Befestigung von Schnellstahlkoepfen in Bohrern
US1664528A (en) 1925-11-05 1928-04-03 Clarence E Reed Rotary drill bit of the flat-blade type
US1884601A (en) 1930-07-31 1932-10-25 Witt Charles W De Detachable drill bit
US2092060A (en) 1936-06-17 1937-09-07 Gairing Tool Company Boring and milling tool
US2259611A (en) * 1941-03-19 1941-10-21 George M Burger Drill
US2367458A (en) 1943-07-10 1945-01-16 Coplen George Drill bit
US2726872A (en) 1953-04-23 1955-12-13 Onsrud Cutter Mfg Company Rotary tool shank and chuck
US2935906A (en) * 1957-07-01 1960-05-10 Andreasson Rudolf William Oil tube drill
US3053118A (en) * 1960-04-29 1962-09-11 Lavallee & Ide Inc Method of manufacturing reamers
US3359837A (en) * 1965-01-26 1967-12-26 Detroit Reamer & Tool Company Rotary tool construction
AT286064B (de) * 1968-01-04 1970-11-25 Hawera Hartmetall Werkzeugfarb Spiralbohrer
DE2246965A1 (de) * 1972-09-25 1974-04-11 Hawera Probst Kg Hartmetall Spiralbohrer
US4160616A (en) 1977-10-03 1979-07-10 Winblad Michael E Drill containing minimum cutting material
DE3306209C2 (de) * 1983-02-23 1985-02-28 Iscar Hartmetall GmbH, 7505 Ettlingen Bohrwerkzeug mit auswechselbarem Schneideinsatz
SE447880B (sv) * 1985-05-17 1986-12-22 Santrade Ltd Borr med lostagbar borrspets
US4603046A (en) 1985-08-23 1986-07-29 Charles Of The Ritz Group Ltd. Improved sunscreen or sunblock composition
DE3855151D1 (de) * 1987-10-27 1996-05-02 Geisler Und Kuper Gmbh Diamant Kupplung, insbesondere für Diamantbohrkrone mit Schaftrohr und Rohrgewindeanschluss
DE3872683D1 (de) 1987-12-05 1992-08-13 Hydrostress Ag Kupplungseinrichtung fuer hohlfraeser zur beton- und gesteinsbearbeitung.
SE461024B (sv) * 1988-06-23 1989-12-18 Sandvik Ab Borr
US5338135A (en) 1991-04-11 1994-08-16 Sumitomo Electric Industries, Ltd. Drill and lock screw employed for fastening the same
DE4214528A1 (de) 1991-05-22 1992-11-26 Komet Stahlhalter Werkzeug Bohrwerkzeug
SE507842C2 (sv) 1992-09-24 1998-07-20 Sandvik Ab Borr
DE4239311C2 (de) 1992-11-23 1996-04-18 Guehring Joerg Dr Bohrer, insbesondere Spitzbohrwerkzeug mit austauschbarem Schneideinsatz
CZ262895A3 (en) 1993-04-14 1996-02-14 Zettl Gmbh Cnc Prazisions Und Milling tool
US5399051A (en) * 1993-08-02 1995-03-21 Aken; Douglas G. Interchangeable head boring or driving apparatus
DE4435857A1 (de) 1994-10-07 1996-04-11 Kennametal Hertel Ag Bohrer mit einem Bohrspitzenteil
DE19605157A1 (de) * 1995-03-03 1996-09-05 Komet Stahlhalter Werkzeug Bohrwerkzeug
IL113698A (en) 1995-05-11 1998-12-06 Iscar Ltd Cutting tool assembly
DE19543233A1 (de) 1995-11-07 1997-05-15 Johne & Co Praezisionswerkzeug Bohrwerkzeug mit auswechselbarer Spitze
SE511429C2 (sv) 1996-09-13 1999-09-27 Seco Tools Ab Verktyg, skärdel, verktygskropp för skärande bearbetning samt metod för montering av skärdel till verktygskropp
IL120948A0 (en) 1997-05-29 1997-09-30 Iscar Ltd Cutting tool assembly

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100455390C (zh) * 2004-01-14 2009-01-28 山特维克知识产权股份有限公司 用于除切屑加工的可旋转刀具
CN101801576B (zh) * 2007-09-14 2012-09-12 彗星集团有限公司 具有钻头冠部的钻孔工具
CN102413974B (zh) * 2009-03-19 2014-06-18 埃莫克精密工具厂里查德格林普尔有限责任两合公司 模块化钻
CN102413974A (zh) * 2009-03-19 2012-04-11 埃莫克精密工具厂里查德格林普尔有限责任两合公司 模块化钻
CN101927371A (zh) * 2009-06-23 2010-12-29 山特维克知识产权股份有限公司 用于去屑加工的钻削刀具和用于所述钻销刀具的松顶部
CN101927371B (zh) * 2009-06-23 2014-11-05 山特维克知识产权股份有限公司 用于去屑加工的钻削刀具和用于所述钻削刀具的松顶部
CN101733451B (zh) * 2009-12-07 2012-10-10 株洲钻石切削刀具股份有限公司 可换头硬质合金麻花钻
CN103328141A (zh) * 2011-01-26 2013-09-25 伊斯卡有限公司 切削刀具
CN103328141B (zh) * 2011-01-26 2016-06-15 伊斯卡有限公司 切削刀具
CN103212735A (zh) * 2012-01-18 2013-07-24 钴碳化钨硬质合金公司 旋转刀具以及用于此类旋转刀具的切削头
CN103212735B (zh) * 2012-01-18 2017-04-26 钴碳化钨硬质合金公司 旋转刀具以及用于此类旋转刀具的切削头
US10058930B2 (en) 2013-04-03 2018-08-28 Kennametal Inc. Tool head for rotary cutting tool and rotary cutting tool including same
US10052698B2 (en) 2013-10-15 2018-08-21 Kennametal Inc. Modular carrier tool and tool head
US10213845B2 (en) 2014-04-08 2019-02-26 Kennametal Inc. Rotary tool, in particular a drill, and a cutting head for said rotary tool
US10040132B2 (en) 2015-06-24 2018-08-07 Kennametal Inc. Rotary tool, in particular a drill for such a rotary tool
US9937567B2 (en) 2015-10-07 2018-04-10 Kennametal Inc. Modular drill
USD798921S1 (en) 2015-10-07 2017-10-03 Kennametal Inc. Cutting head for modular drill
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
USD798922S1 (en) 2015-10-07 2017-10-03 Kennametal Inc. Cutting head for rotary drill
US10537943B2 (en) 2017-03-27 2020-01-21 Kennametal Inc Modular rotary tool and modular tool system
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
US20220118530A1 (en) * 2018-02-02 2022-04-21 J.H. Fletcher & Co. Quick-release coupling for drilling and related methods
US11911830B2 (en) 2019-06-13 2024-02-27 Kennametal India Ltd. Indexable drilling inserts
CN110732708A (zh) * 2019-11-12 2020-01-31 苏州沃钛工业技术有限公司 双面限位斜穿锁紧换头钻
CN110732708B (zh) * 2019-11-12 2024-05-07 苏州沃钛工业技术有限公司 双面限位斜穿锁紧换头钻
CN113103385A (zh) * 2019-12-25 2021-07-13 三星钻石工业株式会社 接合物
CN113103385B (zh) * 2019-12-25 2024-06-07 三星钻石工业株式会社 接合物
CN112388036A (zh) * 2020-11-05 2021-02-23 成都工具研究所有限公司 一种螺旋压力面组合及其连接方法

Also Published As

Publication number Publication date
US5971673A (en) 1999-10-26
CN1086619C (zh) 2002-06-26
DE69734937T2 (de) 2006-09-07
JP2000500076A (ja) 2000-01-11
KR19990067512A (ko) 1999-08-25
EP1013367B1 (en) 2005-12-21
EP0874706B1 (en) 2003-12-17
EP1013367A2 (en) 2000-06-28
DE69734937D1 (de) 2006-01-26
USRE40297E1 (en) 2008-05-06
JP3875272B2 (ja) 2007-01-31
EP0874706A1 (en) 1998-11-04
SE511429C2 (sv) 1999-09-27
SE9603325D0 (sv) 1996-09-13
DE69726835D1 (de) 2004-01-29
HK1017297A1 (en) 1999-11-19
US20010033780A1 (en) 2001-10-25
US5988953A (en) 1999-11-23
EP1013367A3 (en) 2003-07-09
DE69726835T2 (de) 2004-10-07
SE9603325L (sv) 1998-03-14
WO1998010881A1 (en) 1998-03-19
KR100522987B1 (ko) 2006-01-27

Similar Documents

Publication Publication Date Title
CN1086619C (zh) 用于切削加工的刀具及其装配方法
US6551035B1 (en) Tool for rotary chip removal, a tool tip and a method for manufacturing a tool tip
EP2368657B1 (en) A rotatable tool for chip removing machining as well as a cutting insert and a basic body therefor
JP3822576B2 (ja) 回転切削加工用工具及び工具本体
US7625161B1 (en) Rotary cutting tool assembly and cutting insert and tool shank therefor
EP0935508B1 (en) Tool for chip removing machining
CN100528434C (zh) 钻头和具有导引构件的钻尖
CN1092553C (zh) 切削加工用刀具和刀头
EP1296791B1 (en) Rotatable tool having a replaceable tip at the chip removing free end of the tool
CN102216010B (zh) 可调节的可转位钻头和模块化系统以及夹持器
US8517644B2 (en) Adjustable indexable drill and modular system and holder
IL182078A (en) System for attaching a cutting element to a cutting tool
US9004827B2 (en) Adjustable indexable drill and modular system and holder
KR101081786B1 (ko) 회전 절삭 기계 가공용 밀링 커터
WO2008014367A1 (en) Cutting tool with replaceable tip
EP2862656A1 (en) A guide pad and a cutter head for a cutting tool
CN1102146A (zh) 铣刀刀盘
US5921720A (en) Ball nose cutting tool with center mounted tool bits
JPS5817692Y2 (ja) 深穴用ドリル
WO2014150002A1 (en) Adjustable indexable drill

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20020626

CX01 Expiry of patent term