JPH05285708A - Joined throw away tip and its manufacture - Google Patents
Joined throw away tip and its manufactureInfo
- Publication number
- JPH05285708A JPH05285708A JP9042792A JP9042792A JPH05285708A JP H05285708 A JPH05285708 A JP H05285708A JP 9042792 A JP9042792 A JP 9042792A JP 9042792 A JP9042792 A JP 9042792A JP H05285708 A JPH05285708 A JP H05285708A
- Authority
- JP
- Japan
- Prior art keywords
- double
- throw
- sided
- away tip
- positive
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
- B23B27/141—Specially shaped plate-like cutting inserts, i.e. length greater or equal to width, width greater than or equal to thickness
- B23B27/145—Specially shaped plate-like cutting inserts, i.e. length greater or equal to width, width greater than or equal to thickness characterised by having a special shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/36—Other features of cutting inserts not covered by B23B2200/04 - B23B2200/32
- B23B2200/3681—Split inserts, i.e. comprising two or more sections roughly equal in size and having similar or dissimilar cutting geometries
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、超硬合金やサ−メット
よりなるスローアウェイチップであって、該スローアウ
ェイチップの上下両面がポジティブになっているものや
ポジティブで両面の位相がずれている複雑形状のスロー
アウェイチップに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a throw-away tip made of cemented carbide or cermet, in which the upper and lower surfaces of the throw-away tip are positive, or the phases of both sides are positive and the phases are deviated. The present invention relates to a throwaway tip with a complicated shape.
【0002】[0002]
【従来の技術】超硬合金やサ−メットは、難研削性、難
加工性の材料であって、その加工には高価な研削砥石と
長時間を要す。従って、超硬合金工具や部品を製造する
場合には、原料粉末にワックス等のバインダーを添加
し、できるだけ完成品形状に近い金型により型押しし焼
結を行なう。しかし金型で完成品形状に近い形を型押す
るためには形状的に制限が有り、少なくとも型押後の型
押体を排出できる形状に限られる。これ以上更に完成品
形状に近づけるためには型押体を一旦脱ワックスのため
の加熱処理を行なった後、成型加工を行ない焼結する。
通常その後研削加工して完成品となる。2. Description of the Related Art Cemented carbide and cermet are materials that are difficult to grind and hard to work, and their processing requires an expensive grinding wheel and a long time. Therefore, when manufacturing a cemented carbide tool or a part, a binder such as wax is added to the raw material powder, and the die is pressed and sintered by a die that is as close as possible to the shape of the finished product. However, in order to emboss a shape close to the shape of a finished product with a die, there is a limit in shape, and at least it is limited to a shape capable of discharging the embossed body after embossing. In order to further approach the shape of the finished product, the embossed body is once subjected to a heat treatment for dewaxing, and then molded and sintered.
Usually, the finished product is then ground.
【0003】しかしながら、脱ワックスした状態の型押
体は強度が低いので、その取扱および加工には細心の注
意が必要である。通常は人手により着脱および加工す
る。通常の形状の製品の製造と、複雑形状な製品との大
きな相違は、前記の成型加工の要否にある。一方では、
複雑形状部品を作製する方法としては、射出成型のよう
な方法もあるが、本願のような両面ポジティブタイプの
製品の場合、金型からの取出しを容易にするための金型
構造が複雑になり、かつ、射出成型時の湯道の跡や金型
の合わせ目の跡が残るなどの問題点があった。However, the dewaxed embossed body has a low strength, and therefore, it must be handled with care and processed with great care. Usually, it is attached and detached and processed manually. The major difference between the production of a product having a normal shape and a product having a complicated shape lies in the necessity of the above-mentioned molding process. on the one hand,
There is a method such as injection molding as a method of manufacturing a complex shaped part, but in the case of a double-sided positive type product like the present application, the mold structure for easy removal from the mold becomes complicated. In addition, there were problems such as the trace of the runway during injection molding and the trace of the seam of the mold.
【0004】このような従来技術によって、本願のスロ
ーアウェイチップを作製する場合、通常以下のようにし
て作製されていた。上下両面がポジティブなスローアウ
ェイチップや上下両面の位相がずれているような複雑形
状の超硬合金製品を得るためには、脱ワックス後成型加
工によって、最終形状に近い形にする。上下両面がポジ
ティブでかつ、位相が同じ形状を有するスローアウェイ
チップを製造するためには、ネガタイプの形状に型押し
し、脱ワックス後、成型砥石で側面をV字状に成型し、
しかる後に焼結する。位相がずれている四角形状のスロ
ーアウェイチップにおいては、両サイドから8ヶ所の成
型が必要であった。成型に時間と人手を要するので、ど
うしても複雑形状の超硬合金製品は単純形状のものに比
較すると1.5倍〜2倍程度高価なものとなり、用途が
限定されたり、製造数量に制限を受けるため、用途は限
定されていた。When the throw-away tip of the present application is manufactured by such a conventional technique, it is usually manufactured as follows. In order to obtain a throw-away tip with positive upper and lower surfaces and a cemented carbide product with a complicated shape in which the upper and lower surfaces are out of phase, a shape close to the final shape is obtained by molding after dewaxing. In order to manufacture a throw-away tip having positive and negative upper and lower surfaces and the same phase, the negative shape is stamped, the wax is dewaxed, and the side surface is molded into a V shape with a molding grindstone.
After that, it is sintered. In the case of the square throw-away tip, which is out of phase, it was necessary to mold eight locations from both sides. Since it takes time and manpower to mold, cemented carbide products with complicated shapes are about 1.5 to 2 times more expensive than simple shapes, their applications are limited, and the production quantity is limited. Therefore, its use was limited.
【0005】また、金型によって型押しした焼結後の製
品の寸法精度は狙い値に対して最大50μm(以下全長
10mmに対して)程度のバラツキであるのに対して、
成型による場合の寸法精度は200μm程度までのバラ
ツキが有る。従って、成型による場合の寸法精度は、極
めて悪く、焼結後の全面の研摩加工は不可欠なものであ
った。また不等辺形状のものは、さらに成型加工が困難
になりNC制御による成型加工を必要とするか、または
特殊な成型用砥石を使用するので、大量生産できない製
品の1つであった。Further, the dimensional accuracy of the product after being pressed by the metal mold after the sintering has a variation of about 50 μm at the maximum with respect to the target value (hereinafter, for the total length of 10 mm),
In the case of molding, the dimensional accuracy varies up to about 200 μm. Therefore, the dimensional accuracy in the case of molding is extremely poor, and polishing of the entire surface after sintering was indispensable. Further, the unequal-sided shape is one of the products that cannot be mass-produced because the molding process becomes more difficult and the molding process by NC control is required or a special molding grindstone is used.
【0006】[0006]
【発明が解決しようとする課題】本発明は、上下面がそ
れぞれポジティブになっている上下側面使用可能なスロ
ーアウェイチップや、ミーリング加工などに使用可能な
上下面で位相がずれているスローアウェイチップを安価
に提供するものである。さらに本発明は、前記の成型工
程を必要としない複雑形状のスローアウェイチップの製
造方法を提供するものである。DISCLOSURE OF THE INVENTION The present invention is directed to a throw-away tip that can be used for the upper and lower side surfaces, in which the upper and lower surfaces are positive, and a throw-away tip that can be used for milling and the like and has a phase difference between the upper and lower surfaces. Is provided at a low price. Further, the present invention provides a method for manufacturing a throw-away tip having a complicated shape that does not require the above-mentioned molding step.
【0007】[0007]
【課題を解決するための手段】本願は、超硬合金または
サ−メットからなる両面ポジティブまたは両面位相ズレ
ポジティブチップにおいて、2個の円錐台状または角錐
台状の型押体または焼結体を重ね合わせて接合してなる
接合スローアウェイチップである。前記した金型によっ
て型押しした製品の寸法精度は大変高いので、全面が焼
結肌としても使用可能であるが、より精度の高いスロー
アウェイチップが必要なときには、上下面、外周部、逃
げ面の一部を研磨することによって、その目的を達成す
ることができる。前記したような成形による寸法精度
は、通常のスローアウェイチップのサイズでは狙い値に
対するバラツキは200μm程度までであるのに対し
て、金型によって型押される場合は、最大50μmの精
度が得られる。従って、本願で得られたスローアウェイ
チップでは、研磨することなく、焼結肌を有するまま
で、スローアウェイチップとして利用することができ
る。DISCLOSURE OF THE INVENTION In the present invention, in a double-sided positive or double-sided phase shift positive chip made of cemented carbide or cermet, two frustoconical or truncated pyramidal embossed bodies or sintered bodies are used. It is a bonded throw-away chip that is made by stacking and bonding. The dimensional accuracy of the product stamped by the above-mentioned mold is very high, so the entire surface can be used as a sintered surface, but when a more accurate throw-away tip is required, the upper and lower surfaces, the outer peripheral portion, the flank surface The object can be achieved by polishing a part of the. With respect to the dimensional accuracy due to the molding as described above, the variation with respect to the target value is up to about 200 μm in the size of the normal throw-away tip, while the maximum accuracy of 50 μm is obtained when the die is pressed by the die. Therefore, the throw-away tip obtained in the present application can be used as a throw-away tip without polishing and having a sintered surface.
【0008】また、本願では型押体を重ね合わせて焼結
と接合を同時に行うことができる。この場合は焼結と接
合を同時に行うので、安価に本願のスローアウェイチッ
プを得ることができる。当然のことながら、焼結体をま
ず作製し、その後接合することもできる。重ね合わせる
型押体または焼結体は同一形状であることが望ましい。
その理由は、1つの金型で上下の型押体または焼結体を
得ることができるためである。また、本願は超硬合金ま
たはサ−メットからなる両面ポジティブ、または両面位
相ズレポジティブにおいて、原料粉末を型押成型し、該
型押体が少なくとも1組の突起と凹所をそれぞれ嵌合せ
しめて重ね合わせ焼結する接合スローアウェイチップの
製造方法を提供するものである。ここにおいて、前記の
型押体をまず焼結し、しかる後に接合しても、本願の効
果を得ることができる。Further, in the present application, it is possible to stack the embossed bodies and simultaneously perform sintering and joining. In this case, since the sintering and the bonding are performed at the same time, the throw-away tip of the present invention can be obtained at low cost. As a matter of course, the sintered body may be first produced and then joined. It is desirable that the embossed bodies or the sintered bodies to be superposed have the same shape.
The reason is that the upper and lower embossed bodies or sintered bodies can be obtained with one die. Further, in the present application, in a double-sided positive or double-sided phase shift positive made of cemented carbide or cermet, a raw material powder is embossed and molded, and the embossed body is fitted with at least one set of projections and recesses, and is overlaid. Provided is a method of manufacturing a bonded throw-away tip that is sintered together. Here, the effects of the present application can be obtained even if the embossed body is first sintered and then joined.
【0009】本願をさらに詳細に説明すると、第1図に
示すようなポジティブタイプの切刃を上下両面に有する
スローアウェイチップを提供するものである。さらに別
の形状としては、第2図に示すように上、下面の切刃が
一定の角度でずれている。いわゆる上下面で位相のズレ
ているスローアウェイチップを提供するものである。こ
のようなスローアウェイチップは、例えば第3図に示す
ような形状の型押体5をまず作製する。すなわち、角錐
台形状の底面側、即ち面積の小さい側の同心円上に、突
起3および凹所4を形成せしめる。このとき、突起3と
凹所4は、相互に嵌合する寸法にしておく。More specifically, the present invention provides a throw-away tip having positive type cutting blades on both upper and lower surfaces as shown in FIG. As another shape, as shown in FIG. 2, the cutting edges on the upper and lower surfaces are displaced at a constant angle. It provides a so-called throw-away tip that is out of phase with what is called the top and bottom. For such a throw-away tip, the embossing body 5 having a shape as shown in FIG. 3 is first produced. That is, the projections 3 and the recesses 4 are formed on the bottom surface of the truncated pyramid shape, that is, on the concentric circle on the side having a small area. At this time, the projection 3 and the recess 4 are dimensioned so as to fit with each other.
【0010】次に、2つの型押体を重ね合わせ凹所4と
突起3を嵌合せしめて重ね合わせ焼結する。突起と凹所
は金型で形成されるので、その形状や寸法精度は極めて
高い。従って、重ね合わせたものにおいても、寸法精度
の高い組み合わせ体が得られる。また、突起3と凹所4
の位置を第4図に示すように、中心線に対してαの角度
を設けたときには、これを上下に重ね合わせたときには
位相のズレたスローアウェイチップを製作することがで
きる。突起3と凹所4の役割は、その他に、1度重ね合
わせると相互の位置のズレが起こりにくくなるので、取
扱いが容易になるだけでなく、焼結炉中での振動や、ま
た真空焼結するときの脱気時の衝撃によっても相互のズ
レが発生しないという効果も有する。Next, the two embossed bodies are superposed and the recesses 4 and the projections 3 are fitted to each other and superposed and sintered. Since the protrusion and the recess are formed by a mold, their shape and dimensional accuracy are extremely high. Therefore, a combined body having high dimensional accuracy can be obtained even in the case of overlapping. Also, the protrusion 3 and the recess 4
As shown in FIG. 4, when an angle of α is provided with respect to the center line, a throw-away tip with a phase shift can be manufactured when these are stacked vertically. In addition to the roles of the projection 3 and the recess 4, when they are overlapped once, the mutual positional deviations are less likely to occur, so that they are not only easy to handle, but also vibration in a sintering furnace and vacuum baking are performed. There is also an effect that mutual displacement does not occur even when shocked when degassing when binding.
【0011】本願の突起3と凹所4は、特に制限がある
わけではないが、相互に嵌合するためには、クリアラン
スとしては20μm程度あればよい。またその形状は多
角形状であっても円柱状であってもよい。第5図や、第
6図に示すような形状であっても本願の目的を達成する
ことができる。但し、第6図に示すような形状の場合、
左右の動きを防止することができない欠点がある。本願
発明は、超硬合金や、いわゆるサ−メットと言われてい
る、TiC,TiNを含む合金においても利用すること
ができる。The projection 3 and the recess 4 of the present application are not particularly limited, but a clearance of about 20 μm is sufficient for fitting them to each other. The shape may be polygonal or cylindrical. The object of the present application can be achieved even with the shapes shown in FIG. 5 and FIG. However, in the case of the shape shown in FIG.
There is a drawback in that it cannot prevent lateral movement. The present invention can also be applied to cemented carbide and so-called cermet alloys containing TiC and TiN.
【0012】しかしながら、それらの合金の種類によっ
ては、接合が容易でない成分を含有するものもある。こ
のような場合には、接合面の界面に接合を促進するため
に、超硬合金組成粉末や、バインダー成分であるNiや
Coの粉末を塗布することで、焼結時の拡散接合を容易
にすることができる。またより確実な接合を行うために
は、接合時に、前記の重ね合わせ組立体の上に焼結時
に、その組合わせ体が変形しない程度の重しを載せる
と、一層確実、強固な接合が得られる。However, some alloys contain components that are not easily joined. In such a case, in order to promote bonding at the interface of the bonding surfaces, a cemented carbide composition powder or Ni or Co powder as a binder component is applied to facilitate diffusion bonding during sintering. can do. Further, in order to perform more reliable joining, a more reliable and firm joining can be obtained by placing a weight on the above-mentioned superposed assembly at the time of sintering to such an extent that the combination does not deform during the joining. Be done.
【0013】超硬合金は、一般の金属に比較すると脆い
材料ということができる。このような脆い材料において
は、ノッチ状の亀裂や欠陥は破壊の起点となるために、
衝撃の激しい工具の分野では使用できないとされてい
た。また超硬合金同志の接合についても、種々の技術が
開発されているが、このような接合技術をスローアウェ
イチップに応用しようという発想はなかった。本発明者
等は、このような従来の常識に挑戦することによって、
本発明をなすに至ったものである。Cemented carbide can be said to be a brittle material compared to ordinary metals. In such brittle materials, notch-like cracks and defects are the starting point of fracture, so
It was said that it could not be used in the field of high impact tools. Also, various techniques have been developed for joining cemented carbides, but there was no idea to apply such joining technique to the throw-away tip. The present inventors, by challenging such conventional wisdom,
The present invention has been completed.
【0014】接合面端部の断面を顕微鏡観察すると、ノ
ッチ状の切り欠けができることが多い。この理由は型押
体のエッチ部は金型の寿命等を考慮して、面取りをして
あるため、面とり部が第7図に示すような切欠き部を形
成する。通常用途の場合には、この程度の切欠きは、実
用上問題にならない。また本願は、2コーナー両面使い
のスローアウェイチップや、中心部に穴のあるネジ止め
タイプのスローアウェイチップにも利用できることは言
うまでもない。When a cross section of the end portion of the joint surface is observed with a microscope, a notch-shaped notch is often formed. The reason for this is that the etched portion of the embossing body is chamfered in consideration of the life of the die and the like, so the chamfered portion forms a notch as shown in FIG. In the case of normal use, such a notch does not pose a practical problem. Needless to say, the present application can also be applied to a throw-away tip that uses two corners on both sides and a screw-fastening tip that has a hole in the center.
【0015】[0015]
【作用】少なくとも、1組の突起と凹所を有する成型体
または焼結体を重ね合わせて、凹所と突起を嵌合せしめ
ることによって、寸法精度の高いスローアウェイチップ
を提供するものである。また位相ズレのスローアウェイ
チップの場合でもズレ角は、前記した突起と凹所の位置
関係で定まるので、同一の金型を用いて同じスローアウ
ェイチップを大量に生産することができる。このとき、
所要時間の長い成型加工する必要がない。一方では金型
で押したままの型押体を重ね合わせて接合するので、焼
結体自体の寸法精度が高く、外周研磨加工の一部または
全部を省略することができる。The present invention provides a throw-away tip with high dimensional accuracy by stacking at least one set of a molded body or a sintered body having a projection and a recess and fitting the recess and the projection together. Further, even in the case of a phase-away throw-away tip, the shift angle is determined by the positional relationship between the projection and the recess described above, so that the same throw-away tip can be mass-produced using the same die. At this time,
There is no need for molding that takes a long time. On the other hand, since the die-pressed bodies that are still pressed by the die are overlapped and joined together, the dimensional accuracy of the sintered body itself is high, and part or all of the outer peripheral polishing process can be omitted.
【0016】本願の別の特徴は、両面ポジスローアウェ
イチップで特にノーズアールを有するものや不等辺形状
のチップを作製する場合は、量産性、コストを考えると
実質的には成型加工では実施不能であった。従って、ノ
ーズアールや不等辺形状を形成するには、焼結後研削加
工によらざるを得なかったのであるが、本願では、あら
かじめ金型でこれらの形状を形成できるようにしておけ
ば、通常のスローアウェイチップと同様大変容易に製作
することが可能な点である。このようにして得られた本
願のスローアウェイチップは使用される条件によってさ
らに研磨することができる。本願で得られたスローアウ
ェイチップにおいては、上下面、V溝面およびノーズア
ール部を必要に応じて研磨することができる。Another feature of the present application is that, in the case of producing a double-sided positive throw-away tip having a particularly nose radius or a tip of an isosceles shape, it is practically impossible to carry out by molding in consideration of mass productivity and cost. Met. Therefore, in order to form a nose radius or an isosceles shape, it had no choice but to use grinding after sintering. However, in the present application, if these shapes can be formed in advance with a mold, It is possible to manufacture it very easily as with the throw-away tip. The throw-away tip of the present invention thus obtained can be further polished depending on the conditions used. In the throw-away tip obtained in the present application, the upper and lower surfaces, the V groove surface and the nose radius portion can be polished as necessary.
【0017】[0017]
【実施例】WC−10%Coからなる混合粉末を、第3
図に示す形状に金型で型押しした。このとき、突起部の
径は2.98mm、高さは0.49mmであった。一方
凹所の径は3mm、高さは0.5mmであった。位相の
ズレ角αは8゜であった。得られた型押体2個をそれぞ
れの突起と凹所が嵌合するように重ね合わせた。この組
合せ体の上にカーボン板を重りとして載せて真空中14
00℃で1時間焼結した。このようにして得られたWG
G51は、側面焼結体のままで旋削用スローアウェイチ
ップとして使用できた。一方同じWGG51を従来の成
型加工を用いる方法で作成した。このときのWGG51
を1個作るのに要する費用を、従来方法を100とした
とき、本発明の方法で製造したときには、75の割合で
あった。EXAMPLE A mixed powder of WC-10% Co
The die was pressed into the shape shown in the figure. At this time, the diameter of the protrusion was 2.98 mm and the height was 0.49 mm. On the other hand, the recess had a diameter of 3 mm and a height of 0.5 mm. The phase shift angle α was 8 °. The two embossing bodies thus obtained were superposed so that the respective projections and recesses fit into each other. Place a carbon plate as a weight on top of this combination and put it in a vacuum.
Sintered at 00 ° C. for 1 hour. WG thus obtained
G51 could be used as a throw-away insert for turning, as it was as a side sintered body. On the other hand, the same WGG51 was created by a method using a conventional molding process. WGG51 at this time
The cost required to make one was 75 when the conventional method was set to 100 and manufactured by the method of the present invention.
【0018】本願で得た製品の接合面を観察したとこ
ろ、焼結体中央部では接合界面を示すような特異な組織
を見出すことはできなかった。一方その端部では、第7
図に示すような金型の面とり部に対応する部分では切り
欠き状になっていた。しかしながら、従来方法で作成し
たスローアウェイチップと本願で得たスローアウェイチ
ップは、性能の差異は認められなかった。When the joint surface of the product obtained in the present application was observed, it was not possible to find a peculiar structure showing a joint interface in the central portion of the sintered body. On the other hand, at its end,
The portion corresponding to the chamfered portion of the mold as shown in the figure had a notch shape. However, no difference in performance was observed between the throw-away tip prepared by the conventional method and the throw-away tip obtained in the present application.
【0019】[0019]
【発明の効果】以上、詳細に説明したように、本発明
は、粉末合金の型押体が互いに接触して焼結されると、
その接触面で互いに構成成分が拡散され、あたかも同一
型押体であるような接合が形成される。従って、従来金
型では製作不能とされていた両面ポジスローアウェイチ
ップ及び位相ズレにより両面の刃先干渉を防止する位相
ズレスローアウェイチップを安価に量産するのに効果が
ある。As described above in detail, according to the present invention, when the embossed bodies of the powder alloy come into contact with each other and are sintered,
At the contact surface, the constituent components are diffused into each other to form a bond as if they were the same embossed body. Therefore, it is effective to mass-produce the double-sided positive throw-away tip and the phase-shiftable low-away tip that prevent the interference of the cutting edges on both sides due to the phase shift, which were conventionally impossible to manufacture with a die, at low cost.
【図1】本発明で得られた、両面ポジティブのスローア
ウェイチップを示す。1 shows a double-sided positive throw-away tip obtained according to the present invention.
【図2】本願発明で得られた位相ズレの両面ポジティブ
チップである。FIG. 2 is a phase shift double-sided positive chip obtained by the present invention.
【図3】本願発明で得られる型押体であって、4角錐台
の形状をしており、突起と凹所を有している。FIG. 3 is an embossing body obtained by the present invention, which has the shape of a truncated pyramid and has protrusions and recesses.
【図4】第3図で得た型押体の正面図であって、中心線
に対して突起部と凹所部の中心線を結んだ線がαの角度
を有している。FIG. 4 is a front view of the embossing body obtained in FIG. 3, in which the line connecting the center lines of the protrusion and the recess has an angle α with respect to the center line.
【図5】本願の型押体の実施例である。FIG. 5 is an example of the embossing body of the present application.
【図6】図5に同じ。FIG. 6 is the same as FIG.
【図7】第1図の両面ポジティブスローアウェイチップ
のA−A断面の接合部端面の状態を示す図である。FIG. 7 is a view showing a state of an end face of a joint portion in a cross section AA of the double-sided positive throw-away tip of FIG.
【図8】第2図に示す位相ズレのスローアウェイチップ
のB−B断面の接合部端面の状態を示す図面である。8 is a drawing showing a state of a joint end face in a BB cross section of the phase-shifting throw-away tip shown in FIG. 2;
1:両面ポジティブスローアウェイチップ上側 2:両面ポジティブスローアウェイチップ下側 3:突起 4:凹所 5:型押体 6:接合部 1: Double-sided positive throw-away tip upper side 2: Double-sided positive throw-away tip lower side 3: Protrusion 4: Recess 5: Embossed body 6: Joined part
Claims (4)
ポジティブまたは、両面位相ズレポジティブチップにお
いて、2個の円錐台状または角錐台状の型押体または焼
結体を重ね合わせて接合してなることを特徴とする接合
スローアウェイチップ。1. A double-sided positive or double-sided phase shift positive chip made of cemented carbide or cermet, in which two frustoconical or truncated pyramidal embossed bodies or sintered bodies are superposed and joined. Joining throw-away tip that is characterized by.
研磨仕上であることを特徴とする請求項1記載の接合ス
ローアウェイチップ。2. The bonded throw-away tip according to claim 1, wherein at least the flank side has a sintered surface or a partially polished finish.
ポジティブ、または、両面位相ズレポジティブチップに
おいて、原料粉末を型押成型し、該型押体が少なくとも
1組の突起と凹所を有し、該型押体2個を前記の突起と
凹所をそれぞれ嵌合せしめて重ね合わせ、焼結すること
を特徴とする接合スローアウェイチップの製造方法。3. A double-sided positive or double-sided phase shift positive chip made of cemented carbide or cermet, wherein the raw material powder is embossed and the embossed body has at least one set of protrusions and recesses. A method for manufacturing a bonded throw-away tip, comprising: stacking two of the embossed bodies with the projections and the recesses fitted to each other and stacking them together, and sintering.
ポジティブ、または、両面位相ズレポジティブチップに
おいて、原料粉末を型押成型し、該型押体が少なくとも
1組の突起と凹所を有し、型押体を焼結した後、該型押
体2個を前記の突起と凹所をそれぞれ嵌合せしめて重ね
合わせ、拡散接合することを特徴とする接合スローアウ
ェイチップの製造方法。4. A double-sided positive or double-sided phase shift positive chip made of cemented carbide or cermet, wherein the raw material powder is embossed and the embossed body has at least one set of protrusions and recesses. A method for manufacturing a bonded throw-away chip, comprising sintering the embossed body, stacking the two embossed bodies with the projections and the recesses fitted to each other, and then performing diffusion bonding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9042792A JPH05285708A (en) | 1992-04-10 | 1992-04-10 | Joined throw away tip and its manufacture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9042792A JPH05285708A (en) | 1992-04-10 | 1992-04-10 | Joined throw away tip and its manufacture |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH05285708A true JPH05285708A (en) | 1993-11-02 |
Family
ID=13998310
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9042792A Pending JPH05285708A (en) | 1992-04-10 | 1992-04-10 | Joined throw away tip and its manufacture |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH05285708A (en) |
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