序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 硬质旋转刀具 CN200780102089.0 2007-12-27 CN101909796A 2010-12-08 下田阳一朗; 福田斡夫
由硬质合金制成的硬质尖端(20)包括切削刃部分(21)和支承部分(22)。在硬质尖端制造过程中,分别制造作为切削刃部分(21)的预烧结体的切削刃部分中间体、以及作为支承部分(22)的完全烧结体的支承部分中间体。然后在支承部分中间体的前端部分插入切削刃部分中间体的插入孔内的状态下进行完全烧结。在完全烧结时,粉末材料中的钴颗粒转化成液相,并发生烧结和收缩。此时,由于支承部分中间体已完全烧结,所以仅切削刃部分中间体收缩。因此,支承部分中间体的前端部分受到切削刃部分中间体的挤压。切削刃部分中间体和支承部分中间体的边界部分内的钴颗粒也被烧结。因此形成其中切削刃部分(21)和支承部分(22)牢固结合的硬质尖端(20)。
2 Sintered body and cutting tool including the same US15504464 2016-04-20 US09988315B2 2018-06-05 Akito Ishii; Takashi Harada; Katsumi Okamura; Satoru Kukino
A sintered body of the present invention is a sintered body including a first material and cubic boron nitride. The first material is partially-stabilized ZrO2 including 5 to 90 volume % of Al2O3 dispersed in crystal grain boundaries or crystal grains of partially-stabilized ZrO2.
3 SINTERED COMPACT AND CUTTING TOOL US15327214 2016-02-24 US20170197886A1 2017-07-13 Mayu Danda; Katsumi Okamura; Satoru Kukino
A sintered compact has a first material, a second material, and a third material. The first material is cubic boron nitride. The second material is a compound including zirconium. The third material is an aluminum oxide and the aluminum oxide includes a fine-particle aluminum oxide. The sintered compact has a first region in which not less than 5 volume % and not more than 50 volume % of the fine-particle aluminum oxide is dispersed in the second material. On arbitrary straight lines in the first region, an average value of continuous distances occupied by the fine-particle aluminum oxide is not more than 0.08 μm and a standard deviation of the continuous distances occupied by the fine-particle aluminum oxide is not more than 0.1 μm.
4 Drill and a Production Method for a Drill US13601089 2012-08-31 US20130089384A1 2013-04-11 Arno Glaser; Steven Moseley
A drill includes a drill bit, an intermediate part, and a shaft. The drill bit is made from a sintered carbon-containing hard metal. The intermediate part is made from steel and arranged along an axis between the drill bit and the shaft. An activity of carbon in the steel of the intermediate part is greater at a temperature ranging from 1100° C. to 1450° C. than an activity of carbon in the sintered hard metal at the temperature.
5 SINTERED BODY AND CUTTING TOOL INCLUDING THE SAME US15504464 2016-04-20 US20170233295A1 2017-08-17 Akito Ishii; Takashi Harada; Katsumi Okamura; Satoru Kukino
A sintered body of the present invention is a sintered body including a first material and cubic boron nitride. The first material is partially-stabilized ZrO2 including 5 to 90 volume % of Al2O3 dispersed in crystal grain boundaries or crystal grains of partially-stabilized ZrO2.
6 SINTERED COMPACT AND CUTTING TOOL US15324182 2016-01-26 US20170197885A1 2017-07-13 Katsumi Okamura; Mayu Danda; Satoru Kukino
A sintered compact according to the present invention includes: a first material that is cubic boron nitride; a second material that is an oxide of zirconium; and a third material that is an oxide of aluminum, the second material including cubic ZrO2 and ZrO, the third material including α-Al2O3, and the sintered compact satisfying the following relation: 0.9≦Izro2(111)/Ial(110)≦30; and 0.3≦Izro(111)/Ial(110)≦3, where Ial(110), Izro2(111), and Izro(111) respectively represent X-ray diffraction intensities of a (110) plane of the α-Al2O3, a (111) plane of the cubic ZrO2, and a (111) plane of the ZrO.
7 Carbide rotary tool US12810394 2007-12-27 US08333132B2 2012-12-18 Youichiroh Shimoda; Mikio Fukuda
A cutting edge portion intermediate form that is a pre-sintered body of the cutting edge portion and a supporting portion intermediate form that is a fully sintered body of the supporting portion are manufactured separately. Full sintering is then performed where front end portion of the supporting portion intermediate form is inserted into an insertion hole of the cutting edge portion intermediate form. During sintering, cobalt particles in powdered materials are converted into a liquid phase, and contracting occurs. Because the supporting portion intermediate form has already been fully sintered, only the cutting edge portion intermediate form contracts. The front end portion of the supporting portion intermediate form is squeezed by the cutting edge portion intermediate form. The carbide tip is therefore created in which the cutting edge portion and the supporting portion are strongly bonded.
8 Milling cutter and cartridge therefor US351486 1989-05-15 US4993890A 1991-02-19 Tommy S. Tukala; Per Nilsson; Lars-Gunnar Wallstrom
The invention provides a milling cutter for machining metal workpieces and a cartridge therefor. The milling cutter comprises a plurality of peripheral recesses for the receipt of insert-equipped cartridges. One of the walls of said recess is provided by two arms integral with the milling cutter body that each by means of a screw is arranged to clamp the cartridge against one wall in said recess. The cartridge is provided with two bores having suitable clearance for the receipt of said screws.
9 Throw for milling-away tip and milling cutter using the same JP16376995 1995-06-29 JP2751873B2 1998-05-18 MIZUTANI MASANORI
10 Sintered compact and cutting tool US15327214 2016-02-24 US09988314B2 2018-06-05 Mayu Danda; Katsumi Okamura; Satoru Kukino
A sintered compact has a first material, a second material, and a third material. The first material is cubic boron nitride. The second material is a compound including zirconium. The third material is an aluminum oxide and the aluminum oxide includes a fine-particle aluminum oxide. The sintered compact has a first region in which not less than 5 volume % and not more than 50 volume % of the fine-particle aluminum oxide is dispersed in the second material. On arbitrary straight lines in the first region, an average value of continuous distances occupied by the fine-particle aluminum oxide is not more than 0.08 μm and a standard deviation of the continuous distances occupied by the fine-particle aluminum oxide is not more than 0.1 μm.
11 Sintered compact and cutting tool US15324182 2016-01-26 US09856175B2 2018-01-02 Katsumi Okamura; Mayu Danda; Satoru Kukino
A sintered compact according to the present invention includes: a first material that is cubic boron nitride; a second material that is an oxide of zirconium; and a third material that is an oxide of aluminum, the second material including cubic ZrO2 and ZrO, the third material including α-Al2O3, and the sintered compact satisfying the following relation: 0.9≦Izro2(111)/Ial(110)≦30; and 0.3≦Izro(111)/Ial(110)≦3, where Ial(110), Izro2(111), and Izro(111) respectively represent X-ray diffraction intensities of a (110) plane of the α-Al2O3, a (111) plane of the cubic ZrO2, and a (111) plane of the ZrO.
12 Drill and a production method for a drill US13601089 2012-08-31 US09114462B2 2015-08-25 Arno Glaser; Steven Moseley
A drill includes a drill bit, an intermediate part, and a shaft. The drill bit is made from a sintered carbon-containing hard metal. The intermediate part is made from steel and arranged along an axis between the drill bit and the shaft. An activity of carbon in the steel of the intermediate part is greater at a temperature ranging from 1100° C. to 1450° C. than an activity of carbon in the sintered hard metal at the temperature.
13 CARBIDE ROTARY TOOL US12810394 2007-12-27 US20100290845A1 2010-11-18 Youichiroh Shimoda; Mikio Fukuda
A cutting edge portion intermediate form that is a pre-sintered body of the cutting edge portion and a supporting portion intermediate form that is a fully sintered body of the supporting portion are manufactured separately. Full sintering is then performed where front end portion of the supporting portion intermediate form is inserted into an insertion hole of the cutting edge portion intermediate form. During sintering, cobalt particles in powdered materials are converted into a liquid phase, and contracting occurs. Because the supporting portion intermediate form has already been fully sintered, only the cutting edge portion intermediate form contracts. The front end portion of the supporting portion intermediate form is squeezed by the cutting edge portion intermediate form. The carbide tip is therefore created in which the cutting edge portion and the supporting portion are strongly bonded.
14 Indexable insert for milling and milling cutter employing the same US527107 1995-09-12 US5707185A 1998-01-13 Masanori Mizutani
An indexable insert for milling includes a metal base made of cemented carbide, and a cutting edge consisting of a sintered CBN compact and a flat drag type cutting edge which are brazed to the metal base or bonded thereto by integral sintering. A subcutting edge angle (.beta.), a negative land angle (.theta.) and a negative land width (L) are set at 30.degree. to 60.degree., 30.degree. to 45.degree. and 0.05 to 0.40 mm respectively, while the subcutting edge has a straight shape. Due to this structure, the indexable insert has excellent cutting performance particularly in face milling of parts which are made of gray cast iron, and the tool life can be extended.
15 焼結体および切削工具 JP2017521711 2016-02-24 JPWO2016194416A1 2018-04-19 段田 麻佑; 岡村 克己; 久木野 暁
焼結体は、第1材料と第2材料と第3材料とを有する。第1材料は、立方晶窒化素である。第2材料は、ジルコニウムを含む化合物である。第3材料は、アルミニウム酸化物であり、アルミニウム酸化物は、微細なアルミニウム酸化物を含む。焼結体は、微細なアルミニウム酸化物が第2材料中に5体積%以上50体積%以下分散してなる第1領域を有する。第1領域における任意の直線上において、微細なアルミニウム酸化物が占める連続する距離の平均値が0.08μm以下であり、且つ、微細なアルミニウム酸化物が占める連続する距離の標準偏差が0.1μm以下である。
16 焼結体およびそれを含む切削工具 JP2017514149 2016-04-20 JPWO2016171155A1 2018-02-15 石井 顕人; 原田 高志; 岡村 克己; 久木野 暁
本発明の焼結体は、第1材料と立方晶窒化ホウ素とを含むものであって、該第1材料は、5〜90体積%のAl2O3が結晶粒界または結晶粒内に分散した部分安定化ZrO2である。
17 Cart Riddji type Milling JP65279595 1995-06-29 JPH0827U 1996-01-19 エス.ツカラ トミー; ニルソン ペル; バルスト リョーム ラルス−グンナー
(57)【要約】 【目的】 インサートのクランプ性能の向上と、インサートの半径方向位置調節を容易に且つ高精度に行うことが出来るカートリッヂ式フライスの提供。 【構成】 フライス本体がインサート装備カートリッヂ(23)を受容する複数の外周上の凹所(11)を有し、各凹所(11)の1方の壁には本体と一体成形の2
本のアーム(15)が配設されており、両アームは非ネジ孔(25,26)を夫々有し、凹所の両壁の間に挿置した非ネジ孔を有するカートリッヂを該1方の凹所壁の外側からボルト(29)をアームとカートリッヂの非ネジ孔に通して他方の凹所壁に配設したネジ孔(19)に螺結するようにした。
18 Schaftfräswerkzeug und Verfahren zu dessen Herstellung EP04011232.8 2004-05-12 EP1479468A3 2006-05-03 Galli, Oliver; Kocher, Georg

Ein Schaftfräswerkzeug (1) besitzt mindestens eine am Umfang des Werkzeuggrundkörpers (2) befindliche Schneide (3) und einen vor dieser angeordneten Spanraum (4). Der Werkzeuggrundkörper (2) besteht aus einem pulvermetallurgischen und/oder keramischen Ausgangsmaterial und die Schneide (3) ist aus einem Hartmetall gebildet. Jede Schneide (3) besteht aus mehreren Schneidplatten (5) und an dem Werkzeuggrundkörper (2) sind Plattensitze (6) ausgebildet, an denen die Schneidplatten (5) aufgenommen und stoffschlüssig verbunden sind.

19 Indexable insert for milling and milling cutter emplyoing the same EP95114667.9 1995-09-18 EP0703032B1 1999-04-07 Mizutani, Masanori, c/o Itami Works of Sumitomo
20 Milling cutter and cartridge therefor EP89850170.5 1989-05-23 EP0347397A2 1989-12-20 Tukala, Tommy S.; Nilsson, Per; Wallström, Lars-Gunnar

The invention provides a milling cutter for machining metal workpieces and a cartridge therefor. The milling cutter comprises a plurality of peripheral recesses (11) for the receipt of insert-equipped cartridges (23). One of the walls of said recess is provided by two arms (15) integral with the milling cutter body that each by means of a screw (29) is arranged to clamp the cartridge against one wall in said recess. The cartridge is provided with two bores having suitable clearance for the receipt of said screws (29).

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