JP2000042809A - Cutting insert - Google Patents

Cutting insert

Info

Publication number
JP2000042809A
JP2000042809A JP10217718A JP21771898A JP2000042809A JP 2000042809 A JP2000042809 A JP 2000042809A JP 10217718 A JP10217718 A JP 10217718A JP 21771898 A JP21771898 A JP 21771898A JP 2000042809 A JP2000042809 A JP 2000042809A
Authority
JP
Japan
Prior art keywords
cutting
cutting edge
honing
valley
cutting insert
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
JP10217718A
Other languages
Japanese (ja)
Inventor
Toshiya Ichimura
敏也 市村
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.)
Kyocera Corp
Original Assignee
Kyocera Corp
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 Kyocera Corp filed Critical Kyocera Corp
Priority to JP10217718A priority Critical patent/JP2000042809A/en
Publication of JP2000042809A publication Critical patent/JP2000042809A/en
Pending legal-status Critical Current

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  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a cutting insert having excellent sharpness, stable chip curls and high performance in copy machining, depth of cut fluctuation machining or the like of ductile material. SOLUTION: Concerning this cutting insert 10 composed by forming a wave- shaped cutting edge 3c having a crest part and a trough part on either of an upper and lower ridgelines of a board-like body, R-honing and C-face 32b are formed on the wave-shaped cutting edge 3c, and the R-honing is formed so that it will become narrower gradually from the crest part 31 to the trough part 32, and the C-face (inclined plane) 32b is formed so that it will become narrower gradually from the trough part 32 to the crest part 31. Besides, a tilt angle of the C-face 32b prepared for the trough part 32 is defined in the range of 10 deg.-60 deg., and a radius of curvature of the R-honing of the crest part 31 is defined in the range of 0.05-0.12 mm.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、金属等を切削加工
する切刃を構成する切削インサートに関するもので、特
に、延性の大きい冷間鋳造部品等の倣い加工や、段部を
有するシャフトの外周加工など、切り込み変動加工に適
した切削インサートに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting insert for forming a cutting edge for cutting a metal or the like, and more particularly, to copying of a cold-cast component having high ductility, and an outer periphery of a shaft having a step portion. The present invention relates to a cutting insert that is suitable for cutting and variable machining such as machining.

【0002】[0002]

【従来の技術】従来より、切削インサートには、切削中
に生じる切屑を切削作業の妨げにならないように、切屑
を適切な長さ、大きさで分断したり、渦巻き状にカール
させるなどするため、ノーズ部のすくい面にブレーカ溝
を備えたタイプのものが用いられてきた。
2. Description of the Related Art Conventionally, cutting inserts have been used to cut chips into appropriate lengths and sizes or to curl them in a spiral shape so that chips generated during cutting do not hinder the cutting operation. A type having a breaker groove on a rake face of a nose portion has been used.

【0003】しかしながら、上記延性の大きい冷間鋳造
部品等の倣い加工や、段部を有するシャフトの外周加工
など、切り込み変動加工においては、ノーズのすくい面
に設けたブレーカ溝や突起だけでは切屑処理が不十分で
あることがしばしばあった。
[0003] However, in the variation processing of the notch such as the copying of the above-mentioned highly ductile cold-cast component or the outer periphery of a shaft having a stepped portion, the chip processing is performed only by the breaker groove or projection provided on the rake face of the nose. Was often inadequate.

【0004】特に、図6に示すシャフトSの加工形態例
を示す如く、段部の隅部位にR面が残っていて、水平方
向から垂直方向に或いはその反対方向に加工方向を変化
させる壁当たり加工Aや倣い加工Bや切り込み変動加工
Cなどは一時的に切り込み量が増大する。このため、切
屑処理能力を越えて切削加工を行うという結果になるた
めであった。さらに、同図に示す段差引上げ加工Dのよ
うな場合は、切屑が横切刃に沿って引き上げられるの
で、ノーズ部のブレーカ溝の効果が非常に小さくなって
しまう等の問題点があった。
In particular, as shown in a working example of the shaft S shown in FIG. 6, an R-plane remains at the corner of the step and changes the working direction from the horizontal direction to the vertical direction or the opposite direction. In the processing A, the copying B, the cutting variation processing C, and the like, the cutting amount temporarily increases. For this reason, the result is that the cutting processing is performed beyond the chip processing capacity. Further, in the case of the step-raising process D shown in the figure, since the chips are pulled up along the horizontal cutting edge, there is a problem that the effect of the breaker groove in the nose portion becomes extremely small.

【0005】此のように切屑が延出してしまうと、工作
機械の回転センターに絡みつき作業を中断させたり、或
いは、刃先に絡みついて切刃欠損の原因になるなど、重
大なる問題を引き起こしていた。
[0005] When the chips are extended as described above, serious problems are caused, such as entanglement with the rotating center of the machine tool, interrupting the work, or tangling with the cutting edge, causing the cutting edge to be broken. .

【0006】そこで、実開平2−53302号公報や実
開平2−66905号公報や実開平4−63303号に
記載される如く、切刃を上下方向の起伏を有する波状と
し、上記A〜Dのような形態の加工でも、横切刃部分で
切屑処理可能とする切削インサートが提案されている。
Therefore, as described in Japanese Utility Model Application Laid-Open No. 2-53302, Japanese Utility Model Application Laid-Open No. 2-66905, and Japanese Utility Model Application Laid-Open No. 4-63303, the cutting blade has a wavy shape having undulations in the vertical direction. A cutting insert capable of processing chips at the transverse cutting edge portion even in such a form of processing has been proposed.

【0007】なお、これらの切削インサートについて
は、ランドを設けており、このランドの端稜線に強度維
持のためのホーニングを施した実施例が記載されてい
る。
[0007] In these cutting inserts, a land is provided, and an example in which honing for maintaining strength is provided on an end ridge line of the land is described.

【0008】[0008]

【発明が解決しようとする課題】しかしながら上記従来
技術では、波状の切刃の谷部も山部も略均一にランドと
ホーニングが形成されており、そのため刃先の強度が不
十分で、切刃に欠損を生じやすかった。
However, in the above prior art, lands and honings are formed substantially uniformly at both the valleys and peaks of the corrugated cutting blade, so that the strength of the cutting edge is insufficient, and the cutting edge is insufficient. It was prone to defects.

【0009】このような従来技術の問題点に鑑み、本発
明は延性材料の倣い加工や切れ込み変動加工等におい
て、切れ味が良い上に切屑のカールが安定した高性能の
切削インサートを提供することを課題とする。
In view of the above-mentioned problems of the prior art, the present invention provides a high-performance cutting insert that has good sharpness and stable chip curl in profiling of ductile material and cutting variation processing. Make it an issue.

【0010】[0010]

【課題を解決するための手段】上記課題を解決するため
本発明は、板状体の上下いずれかの稜線に山部と谷部を
有する波状の切刃を備えてなる切削インサートにおい
て、上記波状の切刃にRホーニングと斜平面(以下、C
面と称する)とを設けるとともに、該Rホーニングは山
部から谷部にかけて漸次幅狭とし、上記C面は谷部から
山部にかけて漸次幅狭とする。
SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a cutting insert comprising a wavy cutting edge having a peak and a valley at one of upper and lower ridges of a plate-like body. R honing and inclined plane (hereinafter C
And the R honing is gradually narrowed from the peak to the valley, and the C surface is gradually narrowed from the valley to the peak.

【0011】さらに、前記谷部に備えるC面の傾斜角度
を10°〜60°の範囲とし、山部のRホーニングの曲
率半径を0.05〜0.12mmの範囲とすればよい。
Further, the inclination angle of the C plane provided in the valley may be in the range of 10 ° to 60 °, and the radius of curvature of the R honing of the peak may be in the range of 0.05 to 0.12 mm.

【0012】[0012]

【作用】上記の如く構成する本発明の切削インサート
は、板状体の上下いずれかの稜線に山部と谷部を有する
波状の切刃を設けたもので、これは、例えばシャフト外
周の加工の際、垂直上方向への引き加工等の場合に、切
屑をカールさせる作用がある。そして、上記波状の切刃
の谷部にRホーニングを端稜線に施したC面を設けるこ
とによる作用として、切れ味を向上せしめ且つ、切屑の
カールが安定させることができる。
The cutting insert according to the present invention having the above-mentioned structure is provided with a wavy cutting edge having a peak and a valley at one of the upper and lower ridges of the plate-like body. In this case, there is an effect of curling chips in the case of a drawing process or the like in a vertical upward direction. As a function of providing a C-plane with R-horned end ridges at the valleys of the wavy cutting edges, the sharpness can be improved and the curl of the chips can be stabilized.

【0013】また、上記波状の切刃の谷部に外稜に主と
してC面を設けるとともに、山部に主としてRホーニン
グを施した構成による作用としては、山部の機械的強度
を大きくして欠損が起こり難くし、且つ、谷部にC面の
形態を残るので切れ味が犠牲とならない。
The effect of the configuration in which the C-plane is mainly provided at the outer ridge at the valley of the wavy cutting blade and the R-honing is mainly performed at the ridge is that the mechanical strength of the ridge is increased and the And the sharpness is not sacrificed because the C-plane form remains in the valleys.

【0014】[0014]

【発明の実施の形態】以下、本発明の実施形態を図に基
づいて説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

【0015】図1乃至図3に本実施形態の切削インサー
ト10の外観形状を示し、この切削インサート10の全
体形状はノーズ部4の刃先角度が比較的小さい菱形形状
をなし、すくい面1と逃げ面2の稜辺に切刃3が形成さ
れている。また、ノーズ部4には、切刃3に連続してブ
レーカ溝6、そして該ブレーカ溝6の中央部位には座り
面7に連続するブレーカ突起8が形成されている。
FIGS. 1 to 3 show the external shape of the cutting insert 10 of the present embodiment. The overall shape of the cutting insert 10 is a rhombus shape in which the nose portion 4 has a relatively small cutting edge angle, and the rake face 1 and the relief A cutting edge 3 is formed on a ridge of the surface 2. In the nose portion 4, a breaker groove 6 is formed continuously with the cutting blade 3, and a breaker projection 8 is formed at a central portion of the breaker groove 6 and is connected to a seating surface 7.

【0016】図1に示すように、ノーズ部4は湾曲状の
先端切刃3aの両側に直線状の横切刃3bを備えてい
る。また、横切刃3bの後方の切刃は、上下方向に湾曲
する波状切刃3cとし、この波状切刃3cの山部31と
谷部32のそれぞれに連なるすくい面の最高部位と最低
部位には、平面カット31a、32aが施されいる。
As shown in FIG. 1, the nose portion 4 has a straight cutting edge 3b on both sides of a curved tip cutting edge 3a. The cutting edge behind the horizontal cutting edge 3b is a wavy cutting edge 3c curved in the vertical direction. The wavy cutting edge 3c has the highest and lowest rake faces connected to the peaks 31 and the valleys 32, respectively. Has plane cuts 31a and 32a.

【0017】図4、図5はそれぞれ図1のX−X線断面
図、Y−Y線断面図である。図4に示すように、波状切
刃3cの山部31は、Rホーニング31bのみを施した
構成であり、他方、谷部32は、Rホーニングを端稜線
に施したC面32bを設けた構成となっている。すなわ
ち、上記波状切刃3cはRホーニング31bとC面32
bとを備えるとともに、該Rホーニング31bは山部3
1から谷部32にかけて漸次幅狭で、他方、上記C面3
2bは谷部32から山部31にかけて漸次幅狭となって
いる。
FIGS. 4 and 5 are a sectional view taken along the line XX and a line YY of FIG. 1, respectively. As shown in FIG. 4, the peak 31 of the wavy cutting edge 3c has a configuration in which only the R honing 31b is applied, while the valley 32 has a C surface 32b in which the R honing is applied to the end ridge line. It has become. That is, the wavy cutting edge 3c is formed by the R honing 31b and the C surface 32.
b, and the R honing 31b is
1 to the valley 32 gradually narrower, while the C surface 3
2b is gradually narrowed from the valley 32 to the peak 31.

【0018】上記の如く構成する切削インサート10
は、板状体の上下いずれかの稜線に山部31と谷部32
を有する波状切刃3cを設けたもので、これは、例えば
シャフト外周の加工の際、垂直上方向への引き加工等の
場合に、切屑をカールさせる作用がある。そして、上記
波状切刃3cの谷部32にRホーニングを端稜線に施し
たC面32bを設けることによる作用として、切れ味を
向上せしめ且つ、切屑のカールが安定させることができ
る。
Cutting insert 10 constructed as described above
Is a peak 31 and a valley 32 on either the upper or lower ridge line of the plate-like body.
This has a function of curling chips in the case of, for example, vertical upward drawing in the processing of the outer periphery of the shaft. As a function of providing the C face 32b with the R horned end ridge line in the valley portion 32 of the wavy cutting edge 3c, the sharpness can be improved and the curl of the chip can be stabilized.

【0019】さらに、上記波状切刃3cの山部31にR
ホーニング31bのみを施した構成による作用として
は、山部31の機械的強度を大きくして欠損が起こり難
くし、且つ、谷部32にC面+Rホーニングの形態の切
刃3cを残るので切れ味は十分鋭く、従って、切削抵抗
も小さい。
Further, the peak 31 of the wavy cutting edge 3c is
The effect of the configuration in which only the honing 31b is applied is that the mechanical strength of the peak portion 31 is increased to make it difficult for defects to occur, and the cutting edge 3c in the form of the C surface + R honing remains in the valley portion 32, so that the sharpness is reduced. It is sharp enough and therefore has low cutting forces.

【0020】尚、前記谷部32に備えるC面32bの傾
斜角度は10°〜60°の範囲が好ましく、山部31の
Rホーニング31bの曲率半径R1としては0.05〜
0.12mmの範囲が好ましい。上記傾斜角度が10°
未満の場合、或いは、曲率半径R1が0.05mm未満
の場合はいずれも刃先強度が低く、欠損し易くなる恐れ
がある。他方、上記傾斜角度が60°を超える場合、或
いは、曲率半径R1が0.12mmを超える場合はいず
れも、切れ味が鈍り、切削抵抗が増す傾向となるととも
に、切屑の排出方向が安定せず切屑が延びやすくなると
いう恐れがある。
The inclination angle of the C-plane 32b provided in the valley 32 is preferably in the range of 10 ° to 60 °, and the radius of curvature R1 of the R honing 31b of the peak 31 is 0.05 to 0.05.
A range of 0.12 mm is preferred. The inclination angle is 10 °
If the radius is less than 0.05 mm, or if the radius of curvature R1 is less than 0.05 mm, the strength of the cutting edge is low, and there is a possibility that the blade may be easily broken. On the other hand, when the inclination angle exceeds 60 ° or when the radius of curvature R1 exceeds 0.12 mm, the sharpness becomes dull and the cutting resistance tends to increase, and the chip discharge direction is not stable. May be easily extended.

【0021】また、横切刃3bは、すくい角を5°以上
と大きくなし、加えて、図2に示すように横切刃3bを
ノーズ最先端Dから離れる方向に下り角度β=4°〜8
°で形成したことにより、R加工や倣い加工など、切り
込み変動が起こり易い種類の加工において、切り込み量
が多くて流れやすい切屑でも、横切刃部分でらせん状に
確実にカールさせる。すなわち、引きの加工や、押しの
加工でも流れ易い巾広の切屑はブレーカ突起8を越えよ
うとするよりも、ワークから離れていく方向でブレーカ
突起8に沿って斜めに流れ、その結果、切屑の流れがス
ムーズであるとともに、らせん状にカールされて切断さ
れ易く、かつ切削抵抗も小さい。したがって、上記切削
インサート10は、引きの加工においても押しの加工に
おいても切屑がブレーカ突起8に確実に当たり、カール
して安定的に排出され、さらに、段部の隅部位を加工す
る際など急激に切り込み量が変化する場合などでも、良
好に切屑を処理する。
The rake angle of the transverse cutting edge 3b is not so large as 5 ° or more, and in addition, as shown in FIG. 8
By forming in degrees, in a type of processing in which cutting variation is likely to occur, such as R processing or copying processing, even a chip having a large cutting amount and flowing easily can be surely curled spirally at the horizontal cutting edge portion. That is, wide chips that are likely to flow even in pulling or pushing work flow obliquely along the breaker protrusion 8 in a direction away from the work rather than trying to cross the breaker protrusion 8, and as a result, the chip Is smooth, is easily curled in a spiral shape, and is easily cut, and the cutting resistance is small. Therefore, in the cutting insert 10, the chip reliably hits the breaker projection 8 in both the pulling process and the pressing process, and the chip is curled and stably discharged. Even when the cutting amount changes, chips are satisfactorily processed.

【0022】上記横切刃3bのすくい角が5°より小さ
い場合、切屑がブレーカ突起8を乗り越えやすくなる恐
れがある。なお、15°を越えると、バリの発生の恐れ
がある。また、この横切刃3bのすくい角は、ノーズ最
先端のすくい角よりも大きいことが好ましい。これは、
ノーズ最先端のすくい角よりも小さい場合には切屑がワ
ークから離れる方向に流れ難くなるためである。また、
横切刃3bの前記下り角β°が4°未満の場合、或いは
8°より大きい場合、切屑処理が悪くなる恐れがある。
If the rake angle of the horizontal cutting edge 3b is smaller than 5 °, there is a possibility that chips easily get over the breaker projections 8. If the angle exceeds 15 °, burrs may be generated. The rake angle of the transverse cutting edge 3b is preferably larger than the rake angle at the tip of the nose. this is,
If the nose angle is smaller than the leading edge of the nose, chips are less likely to flow away from the workpiece. Also,
If the downward angle β ° of the transverse cutting edge 3b is less than 4 ° or greater than 8 °, there is a possibility that chip processing may be deteriorated.

【0023】以上、本発明の実施形態を具体的に例示し
たが、本発明は、この実施形態に限定されるものでな
く、発明の目的を逸脱しない限り、任意の形態とするこ
とができることは言うまでもない。
Although the embodiment of the present invention has been specifically described above, the present invention is not limited to this embodiment, and may take an arbitrary form without departing from the object of the invention. Needless to say.

【0024】実施例 上記図1乃至4に示す切削インサート10において、横
切刃3bのすくい角、傾斜角β、波状切刃3cの谷部3
2を構成するC面の傾斜角と山部31を構成するRホー
ニング31bの曲率半径R1をそれぞれ表1に示すよう
になし、以下の条件で加工試験を行った。
Embodiment In the cutting insert 10 shown in FIGS. 1 to 4, the rake angle and the inclination angle β of the transverse cutting edge 3b, the valley 3 of the wavy cutting edge 3c.
Table 1 shows the inclination angle of the C-plane that constitutes No. 2 and the radius of curvature R1 of the R honing 31b that constitutes the peak portion 31. A machining test was performed under the following conditions.

【0025】[0025]

【表1】 [Table 1]

【0026】切削条件 V=150m/min d=1mm f=0.3mm/rev 被削材:インタミディエイトシャフト(SCM420H) 、SCM4
15( φ48) 工具形状:DNMG150408GF ホルダー形状:PDJNR2525M−15 切削液:無 工具材種:京セラ■製 TN60材種およびKX039
材種 加工態様: (1)冷間鍛造品(SCM420H) による横送り切削処理 (2)SCM415および冷間鍛造品(SCM420H) による壁当た
り切削処理 これらの加工において、切削抵抗の大小、刃先欠損の有
無、切屑処理性について肉眼で評価した。これらの結果
を表1に示す。
Cutting conditions V = 150 m / min d = 1 mm f = 0.3 mm / rev Work material: intermediate shaft (SCM420H), SCM4
15 (φ48) Tool shape: DNMG150408GF Holder shape: PDJNR2525M-15 Cutting fluid: None Tool grade: TN60 grade and KX039 made by Kyocera Corporation
Grade Machining mode: (1) Cross feed cutting with cold forged product (SCM420H) (2) Wall contact cutting with SCM415 and cold forged product (SCM420H) The presence or absence and the chip disposability were visually evaluated. Table 1 shows the results.

【0027】表1から明らかなように、本発明実施例品
である、試料No.2〜4、7〜10は切削抵抗が小さ
く、刃先欠損もなく良好であった。これに対して、波状
切刃3cの谷部32を構成するC面の傾斜角が10°未
満の試料No.1、該傾斜角が60°よりも大きい試料
No.5は刃先欠損が発生してしまった。また、波状切
刃3cの山部31を構成するRホーニング31bの曲率
半径R1が0.05mmよりも小さい試料No.1、及
び該曲率半径R1が0.12より大きい試料No.10
は、切削抵抗も大きく、また、切屑がつまり気味になる
という不具合があった。
As is clear from Table 1, the sample of the present invention, Sample No. Samples Nos. 2 to 4 and 7 to 10 were small in cutting resistance and good without any edge loss. On the other hand, the sample No. in which the inclination angle of the C-plane constituting the valley 32 of the wavy cutting edge 3c is less than 10 °. Sample No. 1 in which the tilt angle was larger than 60 °. In No. 5, the edge was chipped. In addition, the sample No. 1 in which the radius of curvature R1 of the R honing 31b constituting the peak portion 31 of the wavy cutting edge 3c is smaller than 0.05 mm. Sample No. 1 having a radius of curvature R1 larger than 0.12. 10
However, there was a problem that the cutting resistance was large and the chips were slightly clogged.

【0028】[0028]

【発明の効果】叙上のように本発明によれば、板状体の
上下いずれかの稜線に山部と谷部を有する波状の切刃を
設けたので、例えばシャフト外周の加工の際、垂直上方
向への引き加工の場合に、切屑をカールさせることがで
き、そして、上記波状の切刃の谷部に外稜にRホーニン
グを施したC面を設けたので、切れ味を向上せしめ且
つ、切屑のカールが安定させることができる。
As described above, according to the present invention, a wavy cutting edge having a peak and a valley is provided on one of the upper and lower ridges of the plate-like body. In the case of drawing in the vertical upward direction, chips can be curled, and a C-face with R-honed outer ridges is provided at the valleys of the wavy cutting blades, thereby improving sharpness and The chip curl can be stabilized.

【0029】また、上記波状の切刃の谷部に外稜に主と
してC面を設けるとともに、山部に主としてRホーニン
グを施した構成により、山部の機械的強度を大きくして
欠損が起こり難くし、且つ、谷部にC面の形態を残るの
で切れ味が犠牲とならない。
Also, the valleys of the wavy cutting blades are provided with a C-plane mainly at the outer ridges and the ridges are mainly R-honed, so that the mechanical strength of the ridges is increased, so that defects are less likely to occur. In addition, since the form of the C-plane remains in the valley, sharpness is not sacrificed.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明一実施形態の切削インサートの斜視図で
ある。
FIG. 1 is a perspective view of a cutting insert according to an embodiment of the present invention.

【図2】図1の切削インサートの上面図である。FIG. 2 is a top view of the cutting insert of FIG.

【図3】図1の切削インサートの側面図である。FIG. 3 is a side view of the cutting insert of FIG. 1;

【図4】図1のX−X線断面図である。FIG. 4 is a sectional view taken along line XX of FIG. 1;

【図5】図1のY−Y線断面図である。FIG. 5 is a sectional view taken along line YY of FIG. 1;

【図6】種々の切削加工形態を示す説明図である。FIG. 6 is an explanatory view showing various cutting forms.

【符号の説明】[Explanation of symbols]

1 すくい面 2 逃げ面 3 切刃 3a 先端切刃 3b 横切刃 3c 波状切刃 4 ノーズ部 6 ブレーカ溝 7 座り面 8 ブレーカ突起 31 山部 32 谷部 31a、31b 平面カット 31b Rホーニング 32b C面 R1 曲率半径 Reference Signs List 1 rake face 2 flank 3 cutting edge 3a tip cutting edge 3b horizontal cutting edge 3c wavy cutting edge 4 nose portion 6 breaker groove 7 seating surface 8 breaker projection 31 mountain portion 32 valley portion 31a, 31b plane cut 31b R honing 32b C surface R1 radius of curvature

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】板状体の上下いずれかの稜線に山部と谷部
を有する波状の切刃を備えてなる切削インサートであっ
て、上記波状の切刃にRホーニングと斜平面とを備える
とともに、該Rホーニングは山部から谷部にかけて漸次
幅狭となり、上記斜平面は谷部から山部にかけて漸次幅
狭となることを特徴とする切削インサート。
1. A cutting insert comprising a wavy cutting edge having a peak and a valley on one of upper and lower ridges of a plate-like body, wherein the wavy cutting blade comprises an R honing and an inclined plane. The cutting insert, wherein the R honing becomes gradually narrower from the peak to the valley, and the inclined plane becomes gradually narrower from the valley to the peak.
【請求項2】前記谷部に備える斜平面の傾斜角度を10
°〜60°の範囲とし、山部のRホーニングの曲率半径
を0.05〜0.12mmの範囲としたことを特徴とす
る請求項1記載の切削インサート。
2. An inclination angle of an inclined plane provided in the valley portion is set to 10
The cutting insert according to claim 1, wherein the radius of curvature of the R-honing of the peak is in a range of 0.05 to 0.12 mm.
JP10217718A 1998-07-31 1998-07-31 Cutting insert Pending JP2000042809A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10217718A JP2000042809A (en) 1998-07-31 1998-07-31 Cutting insert

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10217718A JP2000042809A (en) 1998-07-31 1998-07-31 Cutting insert

Publications (1)

Publication Number Publication Date
JP2000042809A true JP2000042809A (en) 2000-02-15

Family

ID=16708658

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10217718A Pending JP2000042809A (en) 1998-07-31 1998-07-31 Cutting insert

Country Status (1)

Country Link
JP (1) JP2000042809A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007007736A (en) * 2005-06-28 2007-01-18 Tungaloy Corp Throwaway chip
CN114951720A (en) * 2021-02-26 2022-08-30 株式会社泰珂洛 Cutting insert
DE102015105050B4 (en) 2014-04-07 2022-12-01 Kennametal India Ltd. Cutting insert with improved chip breaking performance

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007007736A (en) * 2005-06-28 2007-01-18 Tungaloy Corp Throwaway chip
DE102015105050B4 (en) 2014-04-07 2022-12-01 Kennametal India Ltd. Cutting insert with improved chip breaking performance
CN114951720A (en) * 2021-02-26 2022-08-30 株式会社泰珂洛 Cutting insert
CN114951720B (en) * 2021-02-26 2023-12-01 株式会社泰珂洛 Cutting insert

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