JPS6357114A - Throwaway tip - Google Patents

Throwaway tip

Info

Publication number
JPS6357114A
JPS6357114A JP12081386A JP12081386A JPS6357114A JP S6357114 A JPS6357114 A JP S6357114A JP 12081386 A JP12081386 A JP 12081386A JP 12081386 A JP12081386 A JP 12081386A JP S6357114 A JPS6357114 A JP S6357114A
Authority
JP
Japan
Prior art keywords
cutting edge
cutting
curved
side face
tip
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.)
Pending
Application number
JP12081386A
Other languages
Japanese (ja)
Inventor
Toshiaki Hosoi
細井 俊明
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Priority to JP12081386A priority Critical patent/JPS6357114A/en
Publication of JPS6357114A publication Critical patent/JPS6357114A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To discharge chips smoothly as well as to aim at improvement in machinability, by forming a pair of curved cutting edges and cutting faces in a symmetrical setup in platelike throwaway tips having the sides almost paralleled with each other and forming each peripheral edge part into a circular curved surface. CONSTITUTION:A throwaway tip 2 is provided with a first side face 41 and a second side face 42 paralleled with each other, and a peripheral edge part is formed by a pair of circular first curved surfaces 51 and second curved surfaces 52. And, a second cutting edge 7 is formed in an intersection line of the first curved surface 51 and the first side face 41, and a first cutting edge 6 being curved so as to be reached to the second side face 42 from the first side face 41 and coming to a cutting edge starting end 60 at the second side face 42 is formed in one end of this second cutting edge. Next, a cutting face of the second cutting edge 7 is constituted of the first side face 41, while a cutting face 8 of the first cutting edge 6 is constituted so as to form a part of a conical surface where a cross part of the second curved surface 52 and the first side face 41 comes to an apex 80. With this constitution, discharge of chips is carried out without hindrance.

Description

【発明の詳細な説明】[Detailed description of the invention]

(産業上の利用分野) この発明はエンドミル等のフライスに用いられるスロー
アウェイチップの改良に関するbのである。 (従来技術) 従来、ボールエンドミルに用いられるス[]−7ウエイ
ブーツブとして、板状の角形のチップに切刃を形成した
ものが知られており、このブツブの切屑排出性を向−ト
させるものとして、例えば特公昭59 ”’ 2172
 %) ’i公報に示されるものが提案されている。こ
れ(よ平板状のチップの縁部に一対の曲面を形成し、こ
の曲面と両側面との交線に切刃を形成させ、さらに切刃
先端部イ・1近のすくい而の下側にシャンクに対する取
(Industrial Application Field) This invention relates to improvement of indexable inserts used in milling cutters such as end mills. (Prior art) Conventionally, as a 7-way boot tab used in a ball end mill, a plate-shaped square tip with a cutting edge formed thereon has been known. For example, Special Publication No. 59 ''' 2172
%) The one shown in 'i publication is proposed. This (a pair of curved surfaces is formed on the edge of the plate-shaped tip, a cutting edge is formed at the intersection line of this curved surface and both side surfaces, and the lower side of the scoop near the tip of the cutting edge A. Mounting on the shank

【プσ口を形成さUたものである。 この構成では、切削的に切刃から−[成された切!古が
1くい面に沿つ【伸びた1)、取付は而に当ることにな
り、このため切屑の猪出竹が阻害され、このため優れた
切削性が発揮されないという欠員がある。 (発明の目的) この発明はこのような従来の欠点を解消するためになさ
れたものであり、切刃から生成された切屑がすくい面に
沿って伸びるのが阻害されることがなく、スムーズに排
出され、したがって優れた切削性が発揮されるスロー7
ウエイチツプを提供するものである。 (発明の構成) この発明は、亙いにほぼ平↑jな第1および第2側面を
有4る板状のヂツゾであって、ぞの周縁部は一対の円弧
状の第1および第2曲面によって形成されて)よぽ対称
な形状に形成され、1−2第1曲面と第1側面との交線
に第2切刃が形成され、この第2切刃の一端部には第1
側面から第2側面にするように湾曲しかつ第2側面部で
切刃始端部となる第1切刃が形成されて第11;IJ刃
と第2切刃とで全体的になめらかに連続した切刃が形成
され、第2切刃のすくい面は第1側面で構成され、第1
切刃のすくい面1.1第1切刃が底部となり第2曲1m
と第1側面との交差部がIfi点となるほぼ内鑵形の一
部をなすように構成され、さらに上記第1および第2切
刃と同一形状の切刃が上記第1および第2切刃と対称の
位置に第1側面と第2曲面とによって形成されているも
のである。 上記構成では、第1切刃から生成した切屑はくの伸び出
しが阻害されることなくブツブポケットに導かれ、排出
されるために、切屑のIA出がスムーズになされ、した
がって優れた切削性が発揮される。 〈実施例) 第1図および第5図において、ボールエンドミルのシャ
ンク1の先端部にはスロー7ウエイチツプ2が、その中
央部に形成されたn通人20を通して図示しない取付は
ボルトにより着脱可能に取付けられている。このスロー
アウェイチップ2の取付は部には切i占排出部となるチ
ツIポケット3がシャンク1の先端部に形成されている
。 上記スローアウェイチップ2は、第2図〜第5図に示づ
ように、nいにほぼ下行な第1側面41および第2側面
42をhする板状のチップであって、その周縁部は一対
の円弧状の第1曲面51および第2曲面52によって形
成されてほぼ対称な形状に形成され、上記第1曲面51
と第1側面41との交線に第2切刃7が形成され、この
第2切刃7の一端部には第1 ft1ll而41から第
2側面42に至るように湾曲しかつ第2側面部42で切
刃始端部60となる第1切刃6が形成されて第1切刃6
と第2切刃7とで全体的になめらかに連続した切刃が形
成されている。 第2切刃7のすくい面は第1側面41で構成され、また
第1切刃6のすくい而8は第1切刃6が底部となり第2
曲面52と第1側面41との交差部が頂点80となるほ
ぼ円錐形の一部をなすように構成されている。十記第1
切刃6および第2切刃7と同一形状の切刃が上記第1切
刃6および第2切刃7と対称の位置に第1側面41と第
2曲面52とによって形成されている。すむわら第1切
刃6と第2切刃7とがnいに対称に一対形成され、これ
らはすくい而8および逃げ面9も同様に形成されている
。また第1切刃6のほぼ全体およびそれに連続Jる第2
切刃7の一部に亘って逃げ面9が形成され、この逃げ面
9は第1曲面51を、平面形状で第1切刃6に接する半
円形に平坦に形成することによって構成されている。 上記第1曲面51と、これと貫通穴20に対して対称形
状の第2曲面52とは、第1図における形状を一定の曲
率゛ト径の円弧形状にするのではなく、チップ2をシャ
ンク1に取付けた状態で切刃による回転軌跡が球面を描
くような形状に形成することが好ましい。チップ2自体
とじ一部の形状を一定の曲率半径のものにすると、チッ
プ2がシ(・ンク1に対して多少傾斜して取付けられる
こと、J3よび切刃がドリルの回転中心からの放射線上
に位置しないことのために、加工穴の形状が球面の一部
を形成しなくなり、所定の形状の加工をするためには補
正加■が必要となるからである。 また第2切刃7のドリル外周面(加工穴の内面)に相当
16部分は、図示のように湾曲して形成してちよいが、
ドリルの軸線方向に直線に形成してもよい。したがって
この明細書でいう円弧状の第1および第2曲面、および
第1切刃と第2切刃とで全体的になめらかに連続した切
刃を形成するとは、このような一部に直線部を有する場
合をも含む概念である。 このような形状のスローアウェイチップ2が、シャンク
1の先端部に形成された凹部に嵌入されて、取付はボル
トによりる脱可催に固定され、また180°回転させて
取付けることによって一対の第1切刃6および第2切刃
7が交互に使用される。取イ」け状態ではすくい而8の
側端部がシャンク1の軸中心線15と正面形状(第1図
)で傾斜し、かつL記頂点80が軸中心′015土に位
置し、第1切刃6が軸中心より外周側に位置するように
取付けられている。またこの状態では、他方の第1切刃
6はシャンク1の外周面より内側に位置して被剛材と干
渉しないようにしている。またスローアウェイチップ2
の取付【ノ状態では、第1切刃6により生成され、すく
い而8に沿って伸びる切屑の移動が得】止されるないよ
うにデツプポケット3が形成されている。 第6図および第7図(よボールエンドミルのシャンク1
に対して上記とほば同様の形状のスローアウェイチップ
29およびスローアウェイ式の補助チップ10を取付け
た例を示し、補助チップ10には中心部を除き切刃11
が形成されている。21はス「l−アウェイチップ29
をシャンク1に着脱可能に取付ける取付4Jボルトであ
る。ス[l−アウェイチップ29には上記ス[]−アウ
ェイブップ2と同様に第1切刃6、第2切刃7およびす
くい而8、逃げ面9が形成されているが、すくい而8の
シャンク中心部はやや突出して形成され、イの側端面が
シャンク1の凹部に当接してス[l−7ウエイチツプ2
つの位置決めがなされるようにしている。このようなす
くい面8の形状も、この明細、■でいう(よぼ円錐形の
概念に含むしのである。 このようにスローアウェイチップ2はシャンク1に対し
て1個のみ取付けて、いわゆる1枚月として用いてもよ
く、あるいは補助切刃とともに用いて、いわゆる2枚刃
として用いてもよい。 (発明の効果) 以上説明したように、この発明は平板状のスローアウェ
イチップに一対の対称配置の曲lf2切刃を形成してそ
のすくい面を切屑の排出が支障なりf′□Jわれるよう
にしたものであり、第1切刃から生成した切屑はその伸
び出しが阻害されることなくチップポケットに導かれ、
排出されるために、切屑の研出がスムーズに4工され、
したがって優れた切削性が発揮されるものである。
[This is the one that forms the opening. In this configuration, the cutting edge is cut by - [cut! If the old part is along the 1 pile surface (extended 1), the installation will be in the middle of the day, and this will hinder the growth of the chips, and therefore there is a vacancy in which excellent cutting performance cannot be achieved. (Purpose of the Invention) This invention was made in order to eliminate such conventional drawbacks, and allows the chips generated from the cutting edge to spread smoothly along the rake face without being hindered. Throw 7 that is ejected and therefore exhibits excellent cutting performance
It provides way tips. (Structure of the Invention) The present invention provides a four plate-shaped tsuzo having substantially flat first and second side surfaces, the peripheral edge of which has a pair of arc-shaped first and second side surfaces. A second cutting edge is formed at the intersection line of the first curved surface and the first side surface, and a first cutting edge is formed at one end of the second cutting edge.
The first cutting edge is curved from the side surface to the second side surface, and the first cutting edge, which is the starting end of the cutting edge, is formed at the second side surface, and the IJ blade and the second cutting edge are smoothly continuous as a whole. A cutting edge is formed, the rake face of the second cutting edge is configured with the first side surface, and the rake face of the second cutting edge is configured with the first side surface.
Rake face of the cutting blade 1.1 The first cutting blade is the bottom and the second curve is 1 m.
and the first side face form a part of a substantially internal chisel shape, and the first and second cutting blades have the same shape as the first and second cutting blades. It is formed by a first side surface and a second curved surface at a position symmetrical to the blade. In the above configuration, the chips generated from the first cutting edge are guided to the pocket and discharged without being hindered, so that the chips are smoothly discharged at IA, and therefore excellent cutting performance is exhibited. be done. <Example> In Figs. 1 and 5, a throw 7-way tip 2 is attached to the tip of the shank 1 of a ball end mill, and can be attached and detached with a bolt (not shown) through an n-way tip 20 formed in the center of the tip. installed. When attaching the throw-away tip 2, a pocket 3 is formed at the tip of the shank 1 to serve as a dispensing section. As shown in FIGS. 2 to 5, the throw-away chip 2 is a plate-shaped chip with a first side surface 41 and a second side surface 42 that are substantially downward. It is formed by a pair of arc-shaped first curved surface 51 and second curved surface 52 to have a substantially symmetrical shape, and the first curved surface 51
A second cutting edge 7 is formed at the intersection line between the first side surface 41 and the second side surface 41. The first cutting edge 6 that becomes the cutting edge starting end 60 is formed at the portion 42, and the first cutting edge 6
and the second cutting edge 7 form a smoothly continuous cutting edge as a whole. The rake face of the second cutting blade 7 is composed of the first side surface 41, and the rake face 8 of the first cutting blade 6 has the first cutting blade 6 at the bottom and the second side face 41.
The intersection of the curved surface 52 and the first side surface 41 forms a part of a substantially conical shape with an apex 80. 1st book of ten
A cutting edge having the same shape as the cutting edge 6 and the second cutting edge 7 is formed by a first side surface 41 and a second curved surface 52 at a position symmetrical to the first cutting edge 6 and the second cutting edge 7. A first cutting edge 6 and a second cutting edge 7 are formed as a pair symmetrically, and the scoop 8 and flank 9 are similarly formed. In addition, almost the entire first cutting edge 6 and the second cutting edge 6 continuous thereto.
A flank face 9 is formed over a part of the cutting blade 7, and this flank face 9 is constructed by forming the first curved surface 51 into a flat semicircular shape that contacts the first cutting blade 6 in a planar shape. . The first curved surface 51 and the second curved surface 52, which is symmetrical with respect to the through hole 20, do not have the shape shown in FIG. It is preferable to form the cutting blade into a shape such that the rotation locus of the cutting blade draws a spherical surface when the cutting blade is attached to the cutting blade. If the tip 2 itself is shaped with a constant radius of curvature, the tip 2 will be installed at a slight angle to the sink 1, and J3 and the cutting edge will be placed on the radiation from the center of rotation of the drill. This is because the shape of the machined hole does not form part of a spherical surface because the second cutting edge 7 is not located at the second cutting edge 7. The 16 portions corresponding to the outer peripheral surface of the drill (inner surface of the machined hole) may be formed curved as shown in the figure.
It may be formed straight in the axial direction of the drill. Therefore, in this specification, when the first and second arc-shaped curved surfaces and the first cutting edge and the second cutting edge form a smoothly continuous cutting edge as a whole, it means that there is a straight part in such a part. This concept also includes cases where the The indexable tip 2 having such a shape is fitted into a recess formed at the tip of the shank 1, and is removably fixed with a bolt. The first cutting edge 6 and the second cutting edge 7 are used alternately. In the open state, the side end of the scoop 8 is inclined with respect to the axis center line 15 of the shank 1 in the front shape (Fig. 1), and the apex 80 indicated by L is located at the axis center '015, The cutting blade 6 is mounted so as to be located on the outer peripheral side from the center of the shaft. In this state, the other first cutting edge 6 is located inside the outer peripheral surface of the shank 1 so as not to interfere with the rigid material. Also throw away chip 2
The depth pocket 3 is formed so that the movement of chips generated by the first cutting edge 6 and extending along the scoop 8 is not stopped. Figures 6 and 7 (shank 1 of ball end mill)
An example is shown in which a throw-away tip 29 and a throw-away type auxiliary tip 10 having almost the same shape as above are attached to the auxiliary tip 10, except for the center part.
is formed. 21 is ``l-away tip 29
This is a 4J bolt that is removably attached to the shank 1. The s[l-away tip 29 has a first cutting edge 6, a second cutting edge 7, a scoop 8, and a flank 9 formed in the same way as the s[]-away tip 2, but the shank of the scoop 8 The center part is formed to protrude slightly, and the side end surface of A comes into contact with the recessed part of the shank 1, so that the tip 2
positioning. The shape of the rake face 8 is also included in the concept of a nearly conical shape as referred to in (■) in this specification. In this way, only one indexable tip 2 is attached to the shank 1, so that it is It may be used as a blade, or it may be used with an auxiliary cutting edge to form a so-called two-blade blade. (Effects of the Invention) As explained above, this invention provides a flat indexable insert with a pair of symmetrically arranged blades. The curved lf2 cutting edge is formed so that its rake surface is f'□J, which hinders the discharge of chips, and the chips generated from the first cutting edge are not hindered from elongating and are Guided by the pocket,
In order to be discharged, the chips are polished smoothly,
Therefore, excellent machinability is exhibited.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの発明の実施例を示Jシャンクへの取付は状
態の正向図、第2図はそのスローアウェイチップの左側
面図、第3図の第1図の■−■線断面図、第4図はその
すくい面の側端面方向に児た底面図、第5図は第1図の
軸線方向先端祝用、第6図はこの発明の別の実施例を示
1正面図、第7図はその軸線方向先端祝用である。 1・・・シャンク、2,29・・・チップ、3・・・チ
ップポケット、6・・・第1切刃、7・・・第2切刃、
8・・・づくい面、41・・・第1111I1面、42
・・・第2側面、51・・・第1曲面、52・・・第2
曲面。 特許出願人     細 月 俊 明 代 理 人     弁理士 小谷悦司同      
 弁理士 Lぐ1111間       弁理士 根谷
康人 第  6  図 第  7  図 手続ネili J]已四) (自発) 昭和61年7J1  /  +1 1、事件の表示 昭和61年特y(願第120813号 2、発明の名称 ス「l−アウ]、イブツブ 3、補正をする名 事件との関係  特許出願・人 氏名      細づ」俊明 4、代理人 住所 大阪市西区西本町1丁[110M3号新松岡ビル 5、補j″L;命令のt’l付 ”1 q Hn i″     401.。 6、補1[の対象 明細錫の発明の詳細な説明の欄 7、補正の内容 明細書第5頁第16行[構成されている。、1のつぎに
以下の記載を挿入する。[ここにいうほぼ内鑵形とは、
円錐体類似の形状をいい、これは円錐体の頂点に近付く
ほど横断面形状で曲率が大きくなる形状のみならず、横
断面形状で曲率が一定のものをも含む概念で・ある。図
面(第1図、第4図および第5図)ではずくい面8の横
断面形状は、円錐底部の形状が第1切刃6の形状として
現れ、頂点80の近傍の横断面形状は曲率がそれより大
きいように見えるが、両者間は一定の曲率であってもよ
く、この場合も作用効果は同一である。1手続補正W(
方式) %式% 2、発明の名称 スローアウェイチップ 3、補正をする者 事件との関係  特許出願人 名  称   細片 俊明 44代理人 5、補正命令の日付 昭和62年 9月22日 6、補正の対象 7、補正の内容 明細内筒9頁第14行の[第3図の」を[第3図は1と
補正する。
Fig. 1 shows an embodiment of the present invention. Fig. 2 is a left side view of the indexable tip, and Fig. 3 is a sectional view taken along the line ■-■ of Fig. 1 in Fig. 1. , FIG. 4 is a bottom view taken in the direction of the side end surface of the rake face, FIG. 5 is a view showing the tip in the axial direction of FIG. 1, and FIG. Figure 7 shows the axial tip. 1... Shank, 2, 29... Chip, 3... Chip pocket, 6... First cutting edge, 7... Second cutting edge,
8...Zukui side, 41...1111I1 side, 42
... second side surface, 51 ... first curved surface, 52 ... second surface
curved surface. Patent applicant: Toshi Hosotsuki, Ryohito Akiyo, patent attorney: Etsushi Kotani
Patent Attorney Lg1111 Patent Attorney Yasuto Neya No. 6 Figure 7 Procedure Neili J] 已 4) (Voluntary) July 1, 1985 J1 / +1 1, Indication of Cases 1985 Special Y (Application No. 120813) 2. Name of the invention S "l-au", Ibtsubu 3. Relationship with famous case to be amended Patent application/Name: Toshiaki 4. Agent address: 1-chome Nishihonmachi, Nishi-ku, Osaka [No. 110M3 Shin Matsuoka Building] 5. Supplement j″L; Instruction t’l “1 q Hn i” 401.. 6. Supplement 1 [Detailed explanation of the subject matter tin invention column 7, Description of contents of amendment, page 5 Line 16 [Constructed., Insert the following description after 1.
It refers to a shape similar to a cone, and this concept includes not only shapes whose cross-sectional shape has a curvature that increases as it approaches the apex of the cone, but also shapes whose cross-sectional shape has a constant curvature. In the drawings (FIGS. 1, 4, and 5), the cross-sectional shape of the cutting face 8 shows the shape of the conical bottom as the shape of the first cutting edge 6, and the cross-sectional shape near the apex 80 has a curvature. appears to be larger than that, but there may be a constant curvature between the two, and the effect is the same in this case as well. 1 Procedural Amendment W (
Method) % formula % 2. Name of the invention Throwaway chip 3. Relationship with the case of the person making the amendment Patent applicant name Name Strip Toshiaki 44 Agent 5. Date of amendment order September 22, 1986 6. Amendment Object 7, correction details Inner cylinder page 9, line 14, ``in Figure 3'' is corrected to ``1 in Figure 3''.

Claims (1)

【特許請求の範囲】[Claims] 1、互いにほぼ平行な第1および第2側面を有する板状
のチップであって、その周縁部は一対の円弧状の第1お
よび第2曲面によって形成されてほぼ対称な形状に形成
され、上記第1曲面と第1側面との交線に第2切刃が形
成され、この第2切刃の一端部には第1側面から第2側
面に至るように湾曲しかつ第2側面部で切刃始端部とな
る第1切刃が形成されて第1切刃と第2切刃とで全体的
になめらかに連続した切刃が形成され、第2切刃のすく
い面は第1側面で構成され、第1切刃のすくい面は第1
切刃が底部となり第2曲面と第1側面との交差部が頂点
となるほぼ円錐形の一部をなすように構成され、さらに
上記第1および第2切刃と同一形状の切刃が上記第1お
よび第2切刃と対称の位置に第1側面と第2曲面とによ
って形成されていることを特徴とするスローアウェイチ
ップ。
1. A plate-shaped chip having first and second side surfaces substantially parallel to each other, the peripheral edge of which is formed into a substantially symmetrical shape by a pair of arc-shaped first and second curved surfaces, and the above-mentioned A second cutting edge is formed at the intersection line of the first curved surface and the first side surface, and one end of the second cutting blade is curved from the first side surface to the second side surface and is cut at the second side surface. A first cutting edge, which is the starting end of the blade, is formed, and the first cutting edge and the second cutting edge form a smoothly continuous cutting edge as a whole, and the rake face of the second cutting edge is composed of the first side surface. and the rake face of the first cutting edge is the first
The cutting edge is configured to form a part of a substantially conical shape with the bottom being the intersection of the second curved surface and the first side surface being the apex, and the cutting edge having the same shape as the first and second cutting edges. A throw-away tip, characterized in that it is formed by a first side surface and a second curved surface at positions symmetrical to the first and second cutting edges.
JP12081386A 1986-05-26 1986-05-26 Throwaway tip Pending JPS6357114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12081386A JPS6357114A (en) 1986-05-26 1986-05-26 Throwaway tip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12081386A JPS6357114A (en) 1986-05-26 1986-05-26 Throwaway tip

Publications (1)

Publication Number Publication Date
JPS6357114A true JPS6357114A (en) 1988-03-11

Family

ID=14795610

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12081386A Pending JPS6357114A (en) 1986-05-26 1986-05-26 Throwaway tip

Country Status (1)

Country Link
JP (1) JPS6357114A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4834591A (en) * 1987-03-04 1989-05-30 Mitsubishi Kinzoku Kabushiki Kaisha Indexable cutter insert
US4898499A (en) * 1987-03-04 1990-02-06 Mitsubishi Kinzoku Kabushiki Kaisha Ball end mill
US5017055A (en) * 1987-03-04 1991-05-21 Mitsubishi Kinzoku Kabushiki Kaisha Indexable cutter insert

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5921725A (en) * 1982-07-21 1984-02-03 Toyoda Autom Loom Works Ltd False twist nozzle for bind spinning
JPS61219511A (en) * 1985-03-27 1986-09-29 Toshiaki Hosoi Throwaway tip

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5921725A (en) * 1982-07-21 1984-02-03 Toyoda Autom Loom Works Ltd False twist nozzle for bind spinning
JPS61219511A (en) * 1985-03-27 1986-09-29 Toshiaki Hosoi Throwaway tip

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4834591A (en) * 1987-03-04 1989-05-30 Mitsubishi Kinzoku Kabushiki Kaisha Indexable cutter insert
US4898499A (en) * 1987-03-04 1990-02-06 Mitsubishi Kinzoku Kabushiki Kaisha Ball end mill
US5017055A (en) * 1987-03-04 1991-05-21 Mitsubishi Kinzoku Kabushiki Kaisha Indexable cutter insert

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