JPH04141312A - Rotary tool - Google Patents
Rotary toolInfo
- Publication number
- JPH04141312A JPH04141312A JP26275490A JP26275490A JPH04141312A JP H04141312 A JPH04141312 A JP H04141312A JP 26275490 A JP26275490 A JP 26275490A JP 26275490 A JP26275490 A JP 26275490A JP H04141312 A JPH04141312 A JP H04141312A
- Authority
- JP
- Japan
- Prior art keywords
- hard
- hard layer
- sintered body
- layer
- twist
- 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
Links
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 238000005219 brazing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
- B23C5/1081—Shank-type cutters, i.e. with an integral shaft with permanently fixed cutting inserts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、ダイヤモンドや立方晶窒化ホウ素（ＣＢＮ
）等を主成分とする硬質焼結体で切刃を形成した回転工
具に関するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention is applicable to diamond and cubic boron nitride (CBN).
), etc. The invention relates to a rotary tool whose cutting edge is formed of a hard sintered body mainly composed of.
従来、この種の切刃に用いられる硬質焼結体は、第５図
及び第６図に示すように、ダイヤモンド又はＣＢＳから
成る硬質層２２と、超硬合金から成る支持層２３とによ
り、平板状の素材として形成されており、工具本体２０
に設けた座面に支持層２３を接地させた状態で、その支
持層と座面をロウ付けすることにより工具本体２０に固
着されている。Conventionally, the hard sintered body used for this type of cutting blade has been made into a flat plate by a hard layer 22 made of diamond or CBS and a support layer 23 made of cemented carbide, as shown in FIGS. The tool body 20 is formed as a shaped material.
The support layer 23 is fixed to the tool body 20 by brazing the support layer and the seat surface with the support layer 23 grounded to the seat surface provided on the tool body 20.
しかしながら、上記のように平板状の硬質焼結体２１を
そのまま工具本体２０に取付けてエンドミルやリーマな
どの回転工具の切刃として用いた場合、焼結体の形状に
より切刃の形状が限定されてしまい、切れ味の良い設計
ができない問題がある。However, when the flat hard sintered body 21 is directly attached to the tool body 20 and used as a cutting blade of a rotary tool such as an end mill or a reamer as described above, the shape of the cutting blade is limited depending on the shape of the sintered body. Therefore, there is a problem in that it is not possible to create a design with good sharpness.
すなわち、板状の硬質焼結体を工具の軸線に合わせて取
付けたり、或いは、すくい角をつけるために若干傾斜を
つけて取付けた構造では、切刃にねじれがなく大きなす
くい角をもたせることができないため、切れ味の大幅な
向上が図れない不具合がある。In other words, if the plate-shaped hard sintered body is mounted along the axis of the tool or slightly inclined to create a rake angle, it is not possible to create a large rake angle without twisting the cutting edge. Therefore, there is a problem in that the sharpness cannot be significantly improved.
方、焼結体の硬質層２２のすくい面にねじれ加工を施し
てすくい角をもたせる方法も考えられるが、軸方向に長
い切刃にすくい角をつけるには、硬質層に十分な厚みが
必要になる。しかし、従来の硬質層の厚めは１ｍｍ前後
でしかなく、この厚めの範囲内で切刃にり−トをつけて
も、小さなすくい角しか形成できない欠点がある。On the other hand, it is also possible to twist the rake face of the hard layer 22 of the sintered body to give it a rake angle, but in order to give a rake angle to a long cutting edge in the axial direction, the hard layer needs to have a sufficient thickness. become. However, the thickness of the conventional hard layer is only around 1 mm, and even if the cutting edge is made with a groove within this thick range, there is a drawback that only a small rake angle can be formed.
なお、硬質層の厚みを大きくすれば、その厚のに応して
ずくい角を大きくとることができるが、第６圓のように
硬質層２２と支持層２３を回転方向に重ねて配置する構
造では、硬質層２２を厚くすると必然的に支持層２３の
厚めが薄くなり、硬質焼結体と工具本体の固着力が低下
する欠点がある。し７たがって、支持層２３をあまり薄
くすることができず、硬質層２２の有効な厚みを大きく
できない問題がある。Incidentally, if the thickness of the hard layer is increased, the rake angle can be increased accordingly, but the hard layer 22 and the support layer 23 are arranged to overlap in the rotation direction as in the sixth circle. In terms of structure, if the hard layer 22 is made thicker, the supporting layer 23 will inevitably become thinner, which has the drawback of reducing the adhesion between the hard sintered body and the tool body. Therefore, there is a problem that the support layer 23 cannot be made very thin and the effective thickness of the hard layer 22 cannot be increased.
この発明は、上記の問題を解決し、硬質焼結体に対して
大きな角度でねしれるねしれ刃を形成できるようにした
構造を提供することを１」的とじている。The object of the present invention is to solve the above-mentioned problems and to provide a structure that can form a twisted edge that twists at a large angle with respect to a hard sintered body.
上記の課題を解決するため、この発明は、工具本体に円
周方向にねじれるねじれ溝を形成し、そのねじれ溝に、
支持層を内周側に硬質層を外周側に配置して硬質焼結体
を固着し、この硬質層にねじれｉｉＪに沿うねじれ刃を
形成したのである。In order to solve the above problems, the present invention forms a twisted groove that twists in the circumferential direction in the tool body, and in the twisted groove,
The hard sintered body was fixed by arranging the support layer on the inner circumferential side and the hard layer on the outer circumferential side, and a twisted edge along the torsion iiJ was formed in this hard layer.
上記構成の回転工具を形成するには、先ず、硬質層から
支持層に向かってねしれ溝に沿うように硬質焼結体を切
り取り、硬質層が連続した状態で均一・な厚ののねしれ
状焼結体を形成する。To form a rotary tool with the above configuration, first, the hard sintered body is cut out along the welt groove from the hard layer to the support layer, and the welded body is made to have a uniform thickness with the hard layer continuous. A shaped sintered body is formed.
次に、その焼結体を、硬質層が外側に向くように工具本
体のねじれｉＭに取付け、内側の支持層と工具本体をロ
ウ付して固着し、ついで、硬質層の上面をねじれ加工し
てずくい面を形成し、そのすくい而と硬質層の側面との
間にねじれ刃を形成する。Next, the sintered body is attached to the torsion iM of the tool body so that the hard layer faces outward, the inner support layer and the tool body are fixed by brazing, and then the upper surface of the hard layer is twisted. A scooped surface is formed, and a twisted edge is formed between the scooped surface and the side surface of the hard layer.
上記の構造では、ねじれ溝に沿って均一な厚みでねしれ
る硬質層を形成できるので、長い切刃長さでもその全体
にわたって大きなすくい角でねじれる切刃を形成するこ
とができる。With the above structure, it is possible to form a hard layer that twists with a uniform thickness along the helical groove, so even if the cutting edge is long, it is possible to form a cutting edge that twists at a large rake angle over its entire length.
以下、この発明の実施例を添イ１図面に基づいて説明す
る。Embodiments of the present invention will be described below with reference to the accompanying drawings.
第１図及び第２図に示すように、工具本体１は、合金鋼
などの鋼材を円筒状に形成したものが用いられ、その先
端に、端部から軸方向に延びる複数条の切粉排出用切欠
き２．２が形成されている。As shown in FIGS. 1 and 2, the tool body 1 is made of a steel material such as alloy steel and is formed into a cylindrical shape. A cutout 2.2 is formed.
この切欠き２．２の底面には、先端から軸方向側乙、叫
ｉすかって円周方向にねじれるねしれ溝３．３が形成さ
れており、ごのねしれ溝３．３に硬質焼結体４が接地さ
れるようになっている。On the bottom surface of this notch 2.2, a twisted groove 3.3 is formed that twists in the circumferential direction from the tip to the axial side. The body 4 is grounded.
十記二り具本体１に装着される硬質焼結体４↓よ、ダイ
ヤモンド又はＣＢＮの硬質層５と、超硬合金から成る支
持層６を同時焼結により一体成形させて形成され、全体
として上記ねしれ溝３の形状に沿うよ・うにねじれた仮
相に形成されている。The hard sintered body 4 ↓ attached to the jig main body 1 is formed by integrally molding a hard layer 5 of diamond or CBN and a support layer 6 made of cemented carbide by simultaneous sintering, and as a whole. It is formed in a twisted pseudo-phase along the shape of the helical groove 3.
この硬質焼結体４は、支持層６が内周側に硬質１閃５が
外周側になるように配置して工具本体１のねじれ溝３に
接地され、支持層６とねしれ溝３をロウ付けして固着さ
れる。This hard sintered body 4 is grounded in the helical groove 3 of the tool body 1 with the support layer 6 disposed on the inner periphery side and the hard sinter 5 on the outer periphery side, and the support layer 6 and the helical groove 3 are arranged on the outer periphery side. It is fixed by brazing.
また、り（周側に向く硬質層５の十曲には、大きなすく
い角をもってねしれるすくい面７が形成されており、こ
のすくい面７と側面との境界部にねじれ刃８が形成され
ている。In addition, a rake face 7 that twists with a large rake angle is formed on the ten curves of the hard layer 5 facing the circumferential side, and a twisted edge 8 is formed at the boundary between this rake face 7 and the side surface. ing.
上記のねじれ刃８を形成するねしれ角度は、１０°〜６
０°の範囲で設定するのが望ましい。すなわら、ねじれ
角度は１０°以］二でないと、接触抵抗を滅らずという
ねしれ刃としての性能が十分に発揮できず、逆に６０°
以」二では、ねしれが大きすぎて顕著な効果がです、ま
た厚い硬質層が必要になるのでコスＩ・アップにつなが
る不具合がある。The helix angle forming the above-mentioned twisted blade 8 is 10° to 6
It is desirable to set it in the range of 0°. In other words, the helix angle must be 10° or more, otherwise the performance of the helix blade, which maintains the contact resistance, cannot be fully demonstrated;
In the second case, the twist is too large and the effect is not noticeable, and a thick hard layer is required, which leads to an increase in cost.
次に、上記硬質焼結体４を素材から切り出す方法につい
て説明する。Next, a method of cutting out the hard sintered body 4 from the material will be explained.
第３図（ａ）は、硬質焼結体を切り出す方法を概念的に
示すために工具の軸断面からのた側面回であり、第３図
（１））はその平面図、第３図（Ｃ）は正面図を示して
いる。Fig. 3(a) is a side view of the tool taken from the axial section to conceptually show the method of cutting out a hard sintered body, Fig. 3(1)) is a plan view thereof, and Fig. 3(1)) C) shows a front view.
この場合、第５図及び第６図に示す従来の構造では、平
板状の焼結体の素材から、第３図（ａ）において切刃断
面を示すへの範囲内に硬質層と支持層が上下に積み重な
るように切り出すのであるが、これでは、必然的に切刃
として有効に利用できる硬質層の厚みが小さくなるため
に、その硬質層上に大きなすくい角を形成することがで
きない。In this case, in the conventional structure shown in FIGS. 5 and 6, a hard layer and a support layer are formed within the range from the flat plate-shaped sintered material to the cross section of the cutting blade shown in FIG. 3(a). They are cut out so that they are stacked one on top of the other, but this inevitably reduces the thickness of the hard layer that can be effectively used as a cutting edge, making it impossible to form a large rake angle on the hard layer.
これに対して、この発明の構造では、平板状の焼結体の
素材８を、工具本体１に対して円柱状の硬質焼結体の一
部分と考えるものであり、支持層６が内側に硬質層５が
外側にくるように配置した状態で、ワイヤカット等の手
段により硬質層５からねじれ溝３に沿うようにリード切
断する。これにより、全長にわたり均一な幅でねじれる
硬質焼結体４を切り出すことができる。On the other hand, in the structure of the present invention, the flat plate-shaped sintered material 8 is considered to be a part of the cylindrical hard sintered body with respect to the tool body 1, and the support layer 6 is made of hard material on the inside. With the layer 5 placed on the outside, the leads are cut from the hard layer 5 along the twisted grooves 3 by means such as wire cutting. Thereby, it is possible to cut out a hard sintered body 4 that is twisted with a uniform width over the entire length.
この切り出したねじれ状の焼結体４を、工具本体１のね
じれ溝３に取付けて、支持層６とねじれ溝３をロウ付け
により固着し、ついで、工具外径１０に沿うように焼結
体の横２番の部分を削除した後、外側に配置された硬質
層５のすくい面７にねじれ加工を施して、ねじれ刃３を
形成する。The cut out twisted sintered body 4 is attached to the twisted groove 3 of the tool body 1, the support layer 6 and the twisted groove 3 are fixed by brazing, and then the sintered body is placed along the tool outer diameter 10. After removing the second horizontal part, the rake face 7 of the outer hard layer 5 is twisted to form the twisted edge 3.
このように硬質層５がねしれ形状に切り出され、かつ軸
方向全長にわたり均一な幅で形成されているので、切刃
長を大きくした場合でも切刃全体にわたって大きな角度
でねしれるねじれ刃を形成することができる。Since the hard layer 5 is cut out in a twisted shape and has a uniform width over the entire length in the axial direction, even when the cutting edge length is increased, the twisted edge can be twisted at a large angle over the entire cutting edge. can be formed.
ところで、第３図（ａ）に示すように、硬質層と支持層
を平行に成形した素材９では、工具外径１０と交差する
（ａ）の部分で硬質層５がとぎれ、切刃長さがその部分
で制限されることになるが、これは、第４図に示すよう
に硬質層５と支持層６の境界面１１を工具外径１０に沿
った円弧面で形成すれば解決することができる。すなわ
ち、上記の構造では、切り出し線が境界面に平行になる
ので、長い寸法でも有効に均一な厚みでねしれた硬質焼
結体を製造することができる。なお、第４図の（ａ）（
ｂ） （Ｃ）は、それぞれ素材から切り出した状態の硬
質焼結体を示す側面図、平面図、正面図である。By the way, as shown in FIG. 3(a), in the material 9 in which the hard layer and the support layer are formed in parallel, the hard layer 5 is broken at the part (a) that intersects the tool outer diameter 10, and the cutting edge length is However, this can be solved by forming the interface 11 between the hard layer 5 and the support layer 6 into an arcuate surface along the tool outer diameter 10, as shown in FIG. I can do it. That is, in the above structure, since the cutting line is parallel to the boundary surface, it is possible to effectively produce a twisted hard sintered body with a uniform thickness even in long dimensions. In addition, (a) in Figure 4 (
b) (C) is a side view, a top view, and a front view showing a hard sintered body cut out from a raw material, respectively.
また、この発明の構造では、第２図に示すように硬質層
５が均一な幅でねじれた形状に成形されるため、切刃と
して有効に利用できる幅を大きくとることができる。こ
のため、第５図に示すように硬質層が平板状に形成され
、しかもねじれ刃のリードを硬質層の厚みだけで吸収し
なければならない従来の構造に比べて、同一の刃長で同
じ角度でねしれるねしれ刃を形成する場合、本発明の構
造の方が硬質層の厚みを薄く設定することができる。Further, in the structure of the present invention, as shown in FIG. 2, the hard layer 5 is formed into a twisted shape with a uniform width, so that the width that can be effectively used as a cutting edge can be increased. For this reason, compared to the conventional structure in which the hard layer is formed into a flat plate shape as shown in Figure 5, and the lead of the twisted blade must be absorbed only by the thickness of the hard layer, the blade length is the same and the angle is the same. When forming a twisted blade that bends, the structure of the present invention allows the thickness of the hard layer to be set thinner.
実際に、直径１５＋ｎｏ＋のエンドミルに対して、硬質
層の厚みが２ｍｍの硬質焼結体を用いて刃長１５ＩＩＩ
Ｉ１１の切刃を形成した場合、本発明の構造ではねじれ
角度３０°のねじれ刃を形成することができたが、従来
の構造では、２°〜５°のすくい角度の傾斜刃しか形成
することができなかった。Actually, for an end mill with a diameter of 15+no+, a hard sintered body with a hard layer thickness of 2 mm was used to reduce the blade length to 15
When forming a cutting edge of I11, the structure of the present invention could form a twisted edge with a helix angle of 30°, but with the conventional structure, only an inclined edge with a rake angle of 2° to 5° could be formed. I couldn't do it.
また、本発明のねじれ刃エンドミルと、従来の２°〜５
６傾斜刃のエンドミルとで、アルミダイキャストの被削
材を周速３００ｍ／ｍｉｎ、半径方向の切込み０．２ｍ
ｍ、軸方向の切込み１３ｍｍ、送り０．２ｍ＋ｎ／ｒｅ
νの加工条件で切削を行なった。その結果、従来の傾斜
刃エンドミルでは、ビビリが発生し、切削音も大きく、
面粗さも不良（Ｒｍａｘ １２μ）であった。これに対
して、ねじれ刃のエンドミルでは、同一条件でビビリが
無く、切削音も小さくて安定した切削状態が得られ、面
粗ざも良好（Ｒｍａｘ ４μ）で美しい仕上精度を得る
ことができた。In addition, the twisted blade end mill of the present invention and the conventional 2° to 5°
With a 6-slanted blade end mill, the aluminum die-cast workpiece can be cut at a circumferential speed of 300 m/min and a radial depth of cut of 0.2 m.
m, axial depth of cut 13mm, feed 0.2m+n/re
Cutting was performed under the machining conditions of ν. As a result, conventional slanted-blade end mills generate chatter and loud cutting noise.
The surface roughness was also poor (Rmax 12μ). On the other hand, with the twisted blade end mill, there was no chatter under the same conditions, the cutting noise was low, stable cutting conditions were obtained, and the surface roughness was also good (Rmax 4 μ) and beautiful finishing accuracy could be obtained. .
以上のように、この発明は、硬質焼結体の硬質層を外周
側に配置し、かつそれをねじれ状に形成したので、長い
切刃長にわたって均一な厚みの硬質層を形成することが
でき、大きなすくい角でねじれるねじれ刃を有効に形成
することができる。As described above, in this invention, the hard layer of the hard sintered body is arranged on the outer peripheral side and is formed in a twisted shape, so that it is possible to form a hard layer with a uniform thickness over a long cutting edge length. , it is possible to effectively form a twisted edge with a large rake angle.
したがって、この発明の構造を用いれば、硬質焼結体に
大きな角度でねじれるねじれ刃を付与することができ、
高い耐摩耗性と良好な切れ味とを両立させた回転工具を
提供できる効果がある。Therefore, by using the structure of this invention, it is possible to give a hard sintered body a twisted edge that twists at a large angle,
This has the effect of providing a rotating tool that has both high wear resistance and good sharpness.
第１図は実施例の回転工具を示す正面図、第２図はその
斜視図、第３図（ａｌは硬質焼結体の切り出し方法を示
す側面図、第３図（ｂ）はその平面図、第３図（Ｃ）は
同じく正面図、第４図（ａ）は切り出した状態の硬質焼
結体を示す側面図、第４図（ｂ）はその平面図、第４図
（Ｃ）は同しく正面図、第５図は従来例を示す正面図、
第６図はその側面図である。
１・・・・・・工具本体、 ３・・・・・・ねじ
れ溝、４・・・・・・硬質焼結体、 ５・・・・・・
硬質層、６・・・・・・支持層、 ７・・・・
・・ずくい面、８・・・・・ねじれ刃、 ＩＯ・
・・・・・工具外径、１■・・・・・・境界面。
特許出願人 住友電気工業株式会社
同Fig. 1 is a front view showing the rotary tool of the embodiment, Fig. 2 is a perspective view thereof, Fig. 3 (al is a side view showing a method of cutting out a hard sintered body, and Fig. 3(b) is a plan view thereof. , FIG. 3(C) is a front view, FIG. 4(a) is a side view showing the hard sintered body in a cut-out state, FIG. 4(b) is a plan view thereof, and FIG. 4(C) is a front view. Similarly, it is a front view, and FIG. 5 is a front view showing a conventional example.
FIG. 6 is a side view thereof. 1... Tool body, 3... Twisted groove, 4... Hard sintered body, 5...
Hard layer, 6...Support layer, 7...
...Zukui-men, 8...Twisted blade, IO-
...Tool outer diameter, 1■ ...Boundary surface. Patent applicant: Sumitomo Electric Industries, Ltd.
Claims (2)
硬質焼結体を筒状の工具本体に取付け、その焼結体に切
刃を形成した回転工具において、上記工具本体に円周方
向にねじれるねじれ溝を形成し、そのねじれ溝に、支持
層を内周側に硬質層を外周側に配置して上記硬質焼結体
を固着し、この硬質層にねじれ溝に沿うねじれ刃を形成
したことを特徴とする回転工具。(1) A rotary tool in which a hard sintered body integrally molded with a hard layer and a support layer for holding it is attached to a cylindrical tool body, and a cutting edge is formed on the sintered body. A torsion groove that twists in the direction is formed, and the hard sintered body is fixed to the torsion groove by arranging a support layer on the inner circumferential side and a hard layer on the outer circumferential side, and a twisted blade along the torsional groove is formed on this hard layer. A rotary tool characterized by a formed shape.
外径形状に沿う形状で形成したことを特徴とする請求項
（１）に記載の回転工具。(2) The rotary tool according to claim 1, wherein the boundary between the hard layer of the hard sintered body and the support layer is formed in a shape that follows the outer diameter of the tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2262754A JP3033166B2 (en) | 1990-09-28 | 1990-09-28 | Rotary tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2262754A JP3033166B2 (en) | 1990-09-28 | 1990-09-28 | Rotary tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04141312A true JPH04141312A (en) | 1992-05-14 |
| JP3033166B2 JP3033166B2 (en) | 2000-04-17 |
Family
ID=17380127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2262754A Expired - Fee Related JP3033166B2 (en) | 1990-09-28 | 1990-09-28 | Rotary tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3033166B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0695596A1 (en) * | 1994-07-06 | 1996-02-07 | Sumitomo Electric Industries, Ltd. | Rotary cutting tool and method of manufacturing the same |
| JP2004344984A (en) * | 2003-05-20 | 2004-12-09 | Tungaloy Corp | End mill |
| DE102005020513B3 (en) * | 2005-04-29 | 2006-09-14 | Näpflin, Schleiftechnik AG | One-piece shaft milling tool for machining sides and edges of boards has a further cure of cutter running parallel to longitudinal axis of milling head in its central region |
| CN109227062A (en) * | 2018-09-21 | 2019-01-18 | 上海名古屋精密工具股份有限公司 | A kind of production method of cylindrical cuts cutter |
-
1990
- 1990-09-28 JP JP2262754A patent/JP3033166B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0695596A1 (en) * | 1994-07-06 | 1996-02-07 | Sumitomo Electric Industries, Ltd. | Rotary cutting tool and method of manufacturing the same |
| US5807032A (en) * | 1994-07-06 | 1998-09-15 | Sumitomo Electric Industries, Ltd. | Rotary cutting tool and method of manufacturing the same |
| JP2004344984A (en) * | 2003-05-20 | 2004-12-09 | Tungaloy Corp | End mill |
| DE102005020513B3 (en) * | 2005-04-29 | 2006-09-14 | Näpflin, Schleiftechnik AG | One-piece shaft milling tool for machining sides and edges of boards has a further cure of cutter running parallel to longitudinal axis of milling head in its central region |
| CN109227062A (en) * | 2018-09-21 | 2019-01-18 | 上海名古屋精密工具股份有限公司 | A kind of production method of cylindrical cuts cutter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3033166B2 (en) | 2000-04-17 |
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