JPH0644566Y2 - Cutting tip for grooving - Google Patents
Cutting tip for groovingInfo
- Publication number
- JPH0644566Y2 JPH0644566Y2 JP15063087U JP15063087U JPH0644566Y2 JP H0644566 Y2 JPH0644566 Y2 JP H0644566Y2 JP 15063087 U JP15063087 U JP 15063087U JP 15063087 U JP15063087 U JP 15063087U JP H0644566 Y2 JPH0644566 Y2 JP H0644566Y2
- Authority
- JP
- Japan
- Prior art keywords
- tip
- cutting edge
- breaker
- grooving
- cutting
- 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.)
- Expired - Lifetime
Links
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、柱状ワークの外周若しくは内周に周溝を形成
する為の溝入れ加工用切削チップに関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a grooving cutting tip for forming a circumferential groove on an outer circumference or an inner circumference of a columnar work.
（従来の技術） 柱状ワークの外周若しくは内周に周溝を形成するには、
通常、ワーク周体の所定位置にホルダーの先端に取着し
た切削チップの切刃をワークのスラスト方向に沿うよう
あてがい、ワークを軸回転させながら該切刃部分の作用
により切削加工がなされる。この時、切刃部分からは薄
帯状の切屑が逐次発生するが、該切屑が直状に延びて来
るとチップやホルダーに絡み作業性が著しく減退すると
共に作業者が傷付いたりする危険も生じる。その為、チ
ップ先端部に所謂ブレーカー面を形成し、切屑をカール
させたり或いはゼンマイ状にするよう工夫がなされてい
る。(Prior Art) To form a circumferential groove on the outer or inner circumference of a columnar work,
Usually, a cutting edge of a cutting tip attached to a tip of a holder is applied to a predetermined position of a work peripheral body along the thrust direction of the work, and cutting work is performed by the action of the cutting edge portion while axially rotating the work. At this time, thin strips of chips are successively generated from the cutting edge portion, but if the chips extend straightly, the chips and the holder are entangled and workability is significantly reduced, and there is a risk that the worker is injured. . For this reason, a so-called breaker surface is formed at the tip of the chip so as to curl the chips or form a spiral spring.
斯かるブレーカー面としては、ほぼ以下の３通りの形成
態様が実用化されている。即ち、チップの上面から先
端切刃にかけて降段部（立上り部）を介して平坦状に形
成され、切刃から切屑がこの平坦なブレーカー面を経て
降段部に達し、ここでゼンマイ状に巻回されるようにし
たもの、上記に於けるブレーカー面の中央部を凹ま
せ切屑を幅方向に彎曲せしめると共に上記同様降段部で
ゼンマイ状に巻回せしめるようにしたもの、ブレーカ
ー面上略中央の切刃部に隣接した位置に突起を形成し、
この突起により切屑を発生と同時にゼンマイ状に巻回せ
しめるようにしたもの、等である。As such a breaker surface, the following three types of formation modes are practically used. That is, the chip is formed flat from the upper surface to the tip cutting edge through the descending step (rising edge), and the chips reach the descending step through the flat breaker surface and are wound in a spiral shape here. Those that are turned, those in which the central part of the breaker surface in the above is dented and the chips are bent in the width direction, and at the same time the winding part is wound in a spiral shape at the descending step, approximately the center on the breaker surface Form a protrusion at a position adjacent to the cutting edge of
The projections allow chips to be wound and wound in a spiral shape at the same time.
（考案が解決しようとする問題点） 然し乍ら、上記態様のブレーカー面を有する切削チップ
は夫々に以下のような問題点を内包していた。即ち、
の場合、切刃と降段部とに間隔がある為、ゼンマイ状の
巻回が十分になされずしかも切屑がチップと同幅で発生
する為ワークの加工面等と干渉し合いこれも作業性低下
の原因となる、亦、幅広の溝を加工する為にチップを所
謂横走り操作させる場合、或いは仕上げ加工する場合
（幅狭の切屑が発生する）に切屑が直状に発生する為チ
ップやホルダーに絡んでしまう、の場合、通常の溝入
れ加工では切屑が幅狭に彎曲され且つゼンマイ状に巻回
されるが、横走り加工や仕上げ加工の際に上記同様切屑
が絡み付く、の場合、横走りの際のゼンマイ状の巻回
は充分になされるが、通常の溝入れ加工時或いは仕上げ
加工時にはやはり上記同様絡み付き易い、・・・等であ
る。(Problems to be Solved by the Invention) However, the cutting chips having the breaker surface of the above-described aspect each have the following problems. That is,
In the case of, since there is a gap between the cutting edge and the descending part, the spiral winding is not sufficient, and chips are generated with the same width as the tip, so they interfere with the work surface of the work and the like When chips are operated in a lateral direction to machine wide grooves that cause deterioration, chips are generated straight when the chips are processed laterally (finish chips are generated). In the case of being entangled with the holder, chips are curved in a narrow width and wound in a spiral shape in the normal grooving process, but in the case of chips entangled in the same way as above when laterally running or finishing, Although the mainspring-like winding is sufficiently performed during lateral running, it is still likely to be entangled as in the above during normal grooving or finishing.
（考案の目的） 本考案は、上記問題点を一掃すべくなされたものであ
り、通常の溝入れ加工、横走り加工更には仕上げ加工に
於いても切屑が確実且つ速やかにゼンマイ状に巻回され
或いは破断され、チップやホルダーに絡み付くことがな
く、作業性が飛躍的に向上する新規な溝入れ加工用切削
チップを提供せんとするものである。(Purpose of the Invention) The present invention has been made to eliminate the above-mentioned problems, and the chips are reliably and promptly wound into a spiral shape even in normal grooving, lateral running, and finishing. It is intended to provide a novel cutting tip for grooving that does not get entangled or broken and is not entangled with a tip or a holder and the workability is dramatically improved.
（問題点を解決する為の手段） 上記目的を達成する為の本考案の構成を添付の実施例図
に基づき説明する。第１図は本考案チップの一例を示す
斜視図、第２図は同平面図、第３図（Ａ）は第２図のII
I−III線断面図、第３図（Ｂ）及び第４図は第２図のIV
−IV線断面図、第５図は第２図のＶ−Ｖ線若しくはＶ′
−Ｖ′線矢視図、第６図は第２図のVI−VI線断面図、第
７図は同実施例の使用状態の斜視図、第８図は同平面
図、第９図は第８図IX線部の拡大図である。即ち、本考
案の溝入れ加工用切削チップは、ホルダー１の先端に縦
長に取着される角柱状切削チップ２であって、該チップ
２の先端側上面の三周縁に前端の切刃部分４及び後内方
に向かう一対の横の切刃部分４が形成され、これら切刃
部分４の内側には残りの先端上面に対し凹状にブレーカ
ー面３が形成されると共に、上記ブレーカー面３内に
は、ブレーカー突起５、５が、チップ先端の二隅部31、
31の近傍を含み、後内方に向かってハ字状で形成されて
いることを特徴とする。(Means for Solving Problems) A configuration of the present invention for achieving the above object will be described with reference to the accompanying drawings. FIG. 1 is a perspective view showing an example of the chip of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 (A) is II of FIG.
A sectional view taken along the line I-III, FIG. 3 (B) and FIG. 4 are IV in FIG.
Fig. 5 is a sectional view taken along the line IV, and Fig. 5 is the line VV or V'of Fig. 2.
-V 'line view, FIG. 6 is a sectional view taken along line VI-VI of FIG. 2, FIG. 7 is a perspective view of the embodiment in use, FIG. 8 is the same plan view, and FIG. 8 is an enlarged view of the line IX portion. That is, the grooving cutting tip of the present invention is a prismatic cutting tip 2 which is vertically attached to the tip of the holder 1, and the cutting edge portion 4 at the front end is formed on the three peripheral edges of the tip-side upper surface. And a pair of lateral cutting edge portions 4 directed inwardly rearward are formed, and inside the cutting edge portions 4, a breaker surface 3 is formed in a concave shape with respect to the remaining upper surface of the tip, and inside the breaker surface 3. The breaker protrusions 5 and 5 are the two corners 31 of the tip of the chip.
It is characterized in that it is formed in a V shape toward the rear inward, including the vicinity of 31.
また、上記ブレーカー面３の後側には、上面に向かう立
上り部32が連続し、また、前述ブレーカー突起５、５
は、先端二隅部31、31の近傍、即ち隣接する切刃部分４
・・・の交差部分より少許中央寄りの部位を含み、この
部位より後内方に向かってハ字状で隆起状に突設される
ものであって、さらにこれら突起５、５は第２図乃至第
４図に示す如く横の切刃部分４と突起５、５との間の間
隔をd2とし、前端切刃部分４の刃渡りをＤとした場合、 d2＝0.05〜0.2×Ｄ の関係に設定することが望ましい。因みに、d2が0.05D
未満の場合、発生した切屑はそのまま突起５、５の表面
に沿って延びるだけで、ゼンマイ状に巻回し難く、一方
0.2Dを超えると緻密なゼンマイ状になり難い。この突起
５、５の平面形状は、図例の如き略長円状の他に三角形
或いは四角形も採用可能である。Further, on the rear side of the breaker surface 3, a rising portion 32 extending toward the upper surface is continuous, and the breaker protrusions 5, 5 are provided.
Is near the tip two corners 31, 31, that is, the adjacent cutting edge portion 4
The portion including a portion closer to the center than the intersection portion of ... Departs from this portion in a rearward and inward direction in the shape of a hump, and these protrusions 5 and 5 are further formed as shown in FIG. As shown in FIG. 4, when the distance between the horizontal cutting edge portion 4 and the projections 5 and 5 is d 2 and the blade crossing of the front end cutting edge portion 4 is D, d 2 = 0.05 to 0.2 × D It is desirable to set the relationship. By the way, d 2 is 0.05D
If it is less than, the generated chips simply extend along the surfaces of the protrusions 5 and 5 and are difficult to wind in a spiral shape.
If it exceeds 0.2D, it will be difficult to form a fine spring. The planar shape of the protrusions 5 and 5 may be a triangular shape or a quadrangular shape in addition to the substantially oval shape as shown in the figure.
亦、該突起５、５の高さを切刃部分４の上縁より0.1〜
0.5mm位突出するようにすれば、上記ゼンマイ状の巻回
或いは破断乃至折断が確実になし得る。Further, the height of the protrusions 5 and 5 should be 0.1 to 0.1 mm from the upper edge of the cutting edge portion 4.
If it is projected by about 0.5 mm, the spiral winding or breakage or breakage can be surely achieved.
（作用） 上記構成の切削チップ２を用いて円柱状ワーク表面に溝
入れ加工する要領を説明する。先ず、第７図に示す如く
ホルダー１の先端保持部11に切刃部分４が前方に突出す
るようチップ２を固定止具12により挟装固定し、第８図
の如くワーク７の被加工部位に切刃部分４をあてがいワ
ークを軸回転させる。このワーク７の回転に伴い、上記
切刃部分４によりワーク７表面は掘削され、周溝71が形
成され、同時に掘削部からは逐次切屑72が発生する。該
切屑72は、第３図（Ｂ）に示す如く、左右の突起５、５
に当たりここで幅方向に彎曲されて幅狭となると共に、
第３図（Ａ）に示す如く長手方向では前記立上り部32に
当たって曲成され、緻密なゼンマイ状に巻回され、或い
はその曲成応力により破断乃至折断される。更に、仕上
げ加工（不図示）は主に隣接する切刃部分４、４の交差
部分により加工するが、この時発生する幅狭で薄い切屑
も、突起５が前記隅部31、31の近傍位置を含んでいるの
で、上記同様突起５の作用によりゼンマイ状に巻回すさ
れ或いは破断乃至折断される。(Operation) A procedure for grooving the surface of a cylindrical work by using the cutting tip 2 having the above configuration will be described. First, as shown in FIG. 7, the tip 2 is clamped and fixed to the tip holding portion 11 of the holder 1 by the fixing stopper 12 so that the cutting edge portion 4 projects forward, and as shown in FIG. Apply the cutting edge part 4 to and rotate the workpiece. With the rotation of the work 7, the cutting edge portion 4 excavates the surface of the work 7 to form a circumferential groove 71, and at the same time, chips 72 are successively generated from the excavation portion. The chips 72 are, as shown in FIG.
It is bent here in the width direction and becomes narrower,
As shown in FIG. 3 (A), it is bent in the longitudinal direction by hitting the rising portion 32, wound in a fine spiral shape, or broken or broken by the bending stress. Further, finish processing (not shown) is mainly performed by the intersection of the adjacent cutting edge portions 4 and 4, but the narrow and thin chips generated at this time have the projections 5 located near the corners 31 and 31. Since it includes the above, it is wound or broken or broken in a spiral shape by the action of the protrusion 5 as described above.
（実施例） 次に実施例について述べる。図の切削チップ２は前後両
端に同態様で形成された切刃部分４・・・を有する前後
互換使用可能な所謂２コーナーチップを示す。従って後
端部にも上記同様のブレーカー面３及びブレーカー突起
５、５が形成されている。各ブレーカー面3,3は中央に
向かって緩やかに凹んだ凹曲面30、30とされ、該凹曲面
30、30と前記立上り部32との境界部に突起５、５と略等
距離に第２のブレーカー突起６が突設されている。この
第２のブレーカー突設６は、前述の如く第１のブレーカ
ー突起５、５の作用を受けて彎曲され幅狭となりながら
延びる切屑72が凹曲面30に沿って進行した後立上り部32
に至る前にこれに当たり、更に巻回を助長するものであ
り、立上り部32を経た切屑72はこれにより一層緻密なゼ
ンマイ状となり、その結果負荷された曲成応力によりゼ
ンマイ状で破断乃至切断され適宜落下する。このように
発生する切屑72は、立上り部32上で逐次落下するので、
チップ２やホルダー１に絡むことなく極めて円滑な切削
加工作業が約束される。尚、ブレーカー突設５、５は、
図の如く長円形でハ字状に配置されており、これにより
上記の如く通常の溝入れ加工、横走り加工或いは仕上げ
加工に於いても等しく機能することが確実に保証される
のであり、望ましく採用される。また、該突設５、５は
平面視して繭型に視覚されるが、これは凹曲面30に沿っ
て形成されているからである。(Example) Next, an example will be described. The cutting tip 2 shown in the figure is a so-called two-corner tip which can be used interchangeably in the front and rear direction and has cutting edge portions 4 ... Therefore, the breaker surface 3 and the breaker protrusions 5, 5 similar to the above are also formed on the rear end portion. Each breaker surface 3, 3 is a concave curved surface 30, 30 that is gently concave toward the center.
A second breaker protrusion 6 is provided at a boundary portion between the rising portions 32 and 30 and 30 at substantially the same distance as the protrusions 5 and 5. As described above, the second breaker protrusion 6 is bent after receiving the action of the first breaker protrusions 5 and 5, and the chips 72 extending while being narrowed are advanced along the concave curved surface 30.
Before this, it is to promote further winding, and the chips 72 that have passed through the rising portions 32 become a more dense spiral spring, and as a result are broken or cut in a spiral spiral shape due to the bending stress applied. Fall appropriately. The chips 72 thus generated sequentially fall on the rising portion 32,
An extremely smooth cutting work is guaranteed without getting entangled with the chip 2 or the holder 1. The breaker protrusions 5 and 5 are
As shown in the figure, they are arranged in an oval shape in a C shape, which surely ensures that they function equally in the usual grooving, lateral running or finishing as described above. Adopted. Further, the protrusions 5 and 5 are viewed as a cocoon type in a plan view because they are formed along the concave curved surface 30.
亦、本実施例では、左右両側部の切刃部分４、４は、チ
ップ２の軸線に対し同じ逃げ角（約５°）αで形成さ
れ、且つその逃げ長さl1、l2は左右で違えてある。そし
てこの逃げ長さl1、l2の形成態様はチップ２の両端部で
互いに対角（軸対称）関係に配置されている（第２図及
び第５図参照）。斯かるチップ２は、第７図乃至第９図
に示す如くホルダー１の片面に沿い、且つ長い方の逃げ
長さl1に対応する切刃部分４が該片面側に位置するよう
取着固定される。従って、前後端いずれを前側にしても
同様の取着状態となり、またこのl1に対応する切刃部分
４はホルダー１の側部に悄々突出することになり、この
状態で例えば第８図及び第９図に示す異径ワーク７の大
径部73の端壁部731に沿って小径部74の周体に溝入れ加
工する場合、端壁部731とホルダー１との間にクリアラ
ンスｔを生じ、その結果ホルダー１とワーク７とが干渉
せず端壁部731の深さに制限されずに上記溝入れ加工が
なされる。従来このような異径ワークに２コーナーチッ
プにより溝入れ加工する場合、その深さに制限があった
為、先端切刃を斜めにしたものが用いられていた。しか
し、加工精度が低い為に結局１コーナーチップを使わざ
るを得ないのが実情であったが、本実施例の場合、上記
の如き逃げ長さl1、l2の態様を採用することにより端壁
部731の深さに制限されず精度の高い溝入れ加工が可能
となる。In this embodiment, the cutting edge portions 4 and 4 on both the left and right sides are formed with the same clearance angle (about 5 °) α with respect to the axis of the tip 2 and the clearance lengths l 1 and l 2 are left and right. It is wrong. The escape lengths l 1 and l 2 are formed in a diagonal (axisymmetric) relationship at both ends of the chip 2 (see FIGS. 2 and 5). The tip 2 is attached and fixed along one surface of the holder 1 as shown in FIGS. 7 to 9, and the cutting edge portion 4 corresponding to the longer escape length l 1 is located on the one surface side. To be done. Therefore, the same attachment state will be obtained regardless of which of the front and rear ends is the front side, and the cutting edge portion 4 corresponding to this l 1 will be vigorously projected to the side portion of the holder 1. In this state, for example, FIG. And when grooving the peripheral body of the small diameter portion 74 along the end wall portion 731 of the large diameter portion 73 of the different diameter work 7 shown in FIG. 9, a clearance t is provided between the end wall portion 731 and the holder 1. As a result, the holder 1 and the work 7 do not interfere with each other, and the grooving is performed without being limited to the depth of the end wall portion 731. Conventionally, when grooving a workpiece with such a different diameter by using a two-corner tip, the depth of the grooving is limited, so that the tip cutting edge is inclined. However, in reality, it is necessary to use the one-corner chip because of the low processing accuracy. However, in the case of this embodiment, by adopting the mode of the escape lengths l 1 and l 2 as described above, Highly accurate grooving is possible without being limited by the depth of the end wall portion 731.
更に、本実施例では、チップ２の上面及び下面に長手方
向に沿って同形の山形突条21、22が形成され、一方ホル
ダー１の狭装保持部11には該山形突条21、22に符号する
形状の凹溝111、112が形成されている。これら山形突条
21、22及び凹溝111、112の長手方向よりの嵌合一体化に
よりチップ２の安定保持がなされる。従来、チップの加
工上これら凹凸嵌合関係が逆になされていたが、チップ
中央部の肉厚が薄くなる為切削加工時の衝撃によりこの
部分に割れが生じることが間々あったが、本実施例では
第６図に示す如くチップ１の中央部の高さ方向の厚みが
大となるのでこのような懸念が一掃される。Further, in this embodiment, the mountain-shaped protrusions 21 and 22 of the same shape are formed on the upper surface and the lower surface of the chip 2 along the longitudinal direction, while the narrow-shaped holding portion 11 of the holder 1 has the mountain-shaped protrusions 21 and 22. Recessed grooves 111 and 112 having the same shape as the reference numerals are formed. These Yamagata ridges
The chips 2 are stably retained by fitting and integrating the grooves 21 and 22 and the grooves 111 and 112 in the longitudinal direction. Conventionally, these concave and convex fitting relations were reversed in the processing of the chip, but since the thickness of the center part of the chip was thin, there were often cracks in this part due to the impact during cutting processing. In the example, as shown in FIG. 6, the thickness of the central portion of the chip 1 in the height direction becomes large, so such a concern is eliminated.
尚、上記実施例では、２コーナーチップでの適用例を示
したがこれに限定されず１コーナーチップにも採用可能
であることは云うまでもない。亦、上記実施例ではワー
ク外周の溝入れ加工について述べたが、これに限定され
ず内周溝の溝入れ加工についても同様に適用できること
は云うまでもない。その他本考案を逸脱しない限り他の
変更が可能であることは当然である。In the above embodiment, the example of application in the two-corner chip is shown, but it is needless to say that the present invention is not limited to this and can be applied to the one-corner chip. In the above embodiment, the grooving of the outer circumference of the work has been described, but the present invention is not limited to this, and it goes without saying that the same can be applied to the grooving of the inner circumference. Of course, other modifications can be made without departing from the invention.
（考案の効果） 叙上の如く、本考案の溝入れ加工用切削チップは、ブレ
ーカー面の先端２隅部近傍にブレーカー突起が形成され
ているから、切刃部分の切削作用により発生する切屑は
この突起により幅方向に彎曲され幅狭となり、更にブレ
ーカー面の後側に連続する立上り部でゼンマイ状に巻回
され或いは破断乃至切断され、チップやホルダーに絡み
付くことなく円滑な切削作業が約束される。また、幅広
の溝入れ加工をする為チップを横走り操作する場合でも
側部の切刃部分に近傍して上記突起が存するから該突起
の作用により発生切屑は逐次ゼンマイ状に巻回され或い
は破断乃至切断され、更に仕上げ加工の場合にも同様の
効果が得られる。このように本考案のチップは従来のチ
ップの欠点を一掃するもので、これ一つで通常の溝入れ
加工から仕上げ加工まで多様な加工を極めて円滑になし
得、その有用性は頗る大である。(Effect of the Invention) As described above, in the grooving cutting tip of the present invention, since the breaker protrusions are formed near the two corners of the tip of the breaker surface, the chips generated by the cutting action of the cutting edge portion are not generated. The protrusion bends in the width direction to make it narrower, and is wound or broken or cut in a spiral shape at the continuous rising part on the rear side of the breaker surface, ensuring smooth cutting work without getting entangled with the chip or holder. It In addition, since a wide groove is formed, even when the chip is laterally operated, since the above-mentioned protrusion exists near the side cutting edge portion, the chips generated by the action of the protrusion are successively wound or broken in a spiral shape. The same effect can be obtained in the case of cutting or further finishing. In this way, the tip of the present invention eliminates the drawbacks of the conventional tip, and it is possible to perform various kinds of processing from ordinary grooving processing to finishing processing extremely smoothly, and its usefulness is great. .
第１図は本考案チップの一例を示す斜視図、第２図は同
平面図、第３図（Ａ）は第２図のIII−III線断面図、第
３図（Ｂ）及び第４図は第２図のIV−IV線断面図、第５
図は第２図のＶ−Ｖ線若しくはＶ′−Ｖ′線矢視図、第
６図は第２図のVI−VI線断面図、第７図は同実施例の使
用状態の斜視図、第８図は同平面図、第９図は第８図IX
線部の拡大図である。 （符号の説明） １……ホルダー、２……切削チップ、３……ブレーカー
面 31……隅部、４……切刃部分、５……ブレーカー突起。FIG. 1 is a perspective view showing an example of the chip of the present invention, FIG. 2 is a plan view thereof, FIG. 3 (A) is a sectional view taken along line III-III of FIG. 2, FIG. 3 (B) and FIG. Is a sectional view taken along line IV-IV in FIG.
FIG. 6 is a sectional view taken along the line VV or V'-V 'of FIG. 2, FIG. 6 is a sectional view taken along the line VI-VI of FIG. 2, and FIG. Fig. 8 is the same plan view, and Fig. 9 is Fig. 8 IX.
It is an enlarged view of a line part. (Description of symbols) 1 ... Holder, 2 ... Cutting tip, 3 ... Breaker surface 31 ... Corner, 4 ... Cutting edge portion, 5 ... Breaker protrusion.
Claims (1)
切削チップであって、該チップの先端側上面の三周縁に
前端切刃部分及び後内方に向かう一対の横切刃部分が形
成され、これら切刃部分の内側には残りの先端側上面に
対し凹状にブレーカー面が形成されるとともに、上記ブ
レーカー面内には、ブレーカー突起が、チップ先端の二
隅部近傍を含み、後内方に向かって幅狭となるハ字状で
且つ突起の先端部位と上記横切刃部分との間隔をd2、前
端切刃部分の刃渡りをＤとした場合； d2＝0.05〜0.2×Ｄ となる位置に形成されてなる溝入れ加工用切削チップ。1. A prismatic cutting tip vertically attached to a tip of a holder, wherein a front edge cutting edge portion and a pair of horizontal cutting edge portions extending rearward inward are provided on three peripheral edges of a tip side upper surface of the tip. The inside of these cutting edge portions is formed with a breaker surface in a concave shape with respect to the upper surface of the remaining tip side, and in the breaker surface, breaker protrusions include the vicinity of the two corners of the tip, When the distance between the tip portion of the protrusion and the side cutting edge portion is d 2 and the width of the front cutting edge portion is D, and the blade crossing of the front cutting edge portion is D; d 2 = 0.05 to 0.2 × A grooving cutting tip formed at a position D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15063087U JPH0644566Y2 (en) | 1987-09-30 | 1987-09-30 | Cutting tip for grooving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15063087U JPH0644566Y2 (en) | 1987-09-30 | 1987-09-30 | Cutting tip for grooving |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6456904U JPS6456904U (en) | 1989-04-10 |
| JPH0644566Y2 true JPH0644566Y2 (en) | 1994-11-16 |
Family
ID=31423945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15063087U Expired - Lifetime JPH0644566Y2 (en) | 1987-09-30 | 1987-09-30 | Cutting tip for grooving |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0644566Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112007002584B4 (en) * | 2006-10-31 | 2016-05-19 | Kyocera Corp. | Cutting insert, cutting tool and method for machining a workpiece |
| JP6052455B1 (en) * | 2016-04-19 | 2016-12-27 | 株式会社タンガロイ | Cutting inserts and cutting tools |
| JP6066005B1 (en) * | 2016-04-19 | 2017-01-25 | 株式会社タンガロイ | Cutting inserts and cutting tools |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL84078A (en) * | 1987-10-02 | 1990-09-17 | Iscar Ltd | Cutting insert |
| JP5564958B2 (en) * | 2010-01-22 | 2014-08-06 | 三菱マテリアル株式会社 | Replaceable cutting edge grooving tool and end face grooving method |
| JP5589401B2 (en) * | 2010-01-22 | 2014-09-17 | 三菱マテリアル株式会社 | Replaceable cutting edge grooving tool and end face grooving method |
| JP5678431B2 (en) * | 2010-02-05 | 2015-03-04 | 三菱マテリアル株式会社 | Exchangeable grooving tool and peripheral grooving method |
| JP5560748B2 (en) * | 2010-02-05 | 2014-07-30 | 三菱マテリアル株式会社 | Exchangeable grooving tool and peripheral grooving method |
| US9272336B2 (en) * | 2010-09-29 | 2016-03-01 | Kyocera Corporation | Cutting insert, cutting tool, and method of manufacturing machined product using them |
| WO2014017623A1 (en) * | 2012-07-26 | 2014-01-30 | 京セラ株式会社 | Cutting insert and cutting tool, and method for manufacturing cut object using the same |
| JP6936975B2 (en) * | 2018-12-28 | 2021-09-22 | 株式会社タンガロイ | Cutting inserts and cutting tools |
| JP6728428B1 (en) * | 2019-02-28 | 2020-07-22 | 株式会社タンガロイ | Cutting insert and cutting tool |
-
1987
- 1987-09-30 JP JP15063087U patent/JPH0644566Y2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112007002584B4 (en) * | 2006-10-31 | 2016-05-19 | Kyocera Corp. | Cutting insert, cutting tool and method for machining a workpiece |
| JP6052455B1 (en) * | 2016-04-19 | 2016-12-27 | 株式会社タンガロイ | Cutting inserts and cutting tools |
| JP6066005B1 (en) * | 2016-04-19 | 2017-01-25 | 株式会社タンガロイ | Cutting inserts and cutting tools |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6456904U (en) | 1989-04-10 |
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