JP2556373Y2 - Throw-away tips - Google Patents
Throw-away tipsInfo
- Publication number
- JP2556373Y2 JP2556373Y2 JP1990026843U JP2684390U JP2556373Y2 JP 2556373 Y2 JP2556373 Y2 JP 2556373Y2 JP 1990026843 U JP1990026843 U JP 1990026843U JP 2684390 U JP2684390 U JP 2684390U JP 2556373 Y2 JP2556373 Y2 JP 2556373Y2
- Authority
- JP
- Japan
- Prior art keywords
- cutting edge
- chip
- tool
- sub
- polygonal
- 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 - Fee Related
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］ この考案は、被削材に直角溝を加工する際に用いて好
適なスローアウエイチツプに関する。[Detailed description of the invention] [Industrial application field] The invention relates to a throw-away chip suitable for use in machining a right-angle groove in a work material.
［従来の技術］ 従来、この種のスローアウエイチツプ（以下、チツプ
と略称する。）として、例えば第８図ないし第10図に示
すものが知られている。[Prior Art] Conventionally, as this kind of throw-away chip (hereinafter abbreviated as chip), for example, those shown in FIGS. 8 to 10 are known.
これらの図に示すチツプは、略正方形平板状をなし、
その多角形面１、２の中心部にボルト孔３が形成される
とともに、各外形側面４…の一方の側にチツプ内方に陥
没するブレーカ溝状のすくい面５…が、他方の側に正面
逃げ面６…が形成され、隣接する外形側面４のすくい面
５と正面逃げ面６との稜線部に主切刃７…が形成され、
上記すくい面５と多角形面１、２との稜線部に副切刃８
…が形成されてなるものである。The chips shown in these figures have a substantially square plate shape,
A bolt hole 3 is formed at the center of the polygonal surfaces 1 and 2, and a breaker groove-shaped rake surface 5 ... which is depressed inward into the chip is formed on one side of each outer side surface 4 ... on the other side. A front flank 6 is formed, and a main cutting edge 7 is formed at a ridge portion between the rake face 5 and the front flank 6 of the adjacent outer side surface 4.
An auxiliary cutting edge 8 is provided at the ridge between the rake face 5 and the polygonal faces 1 and 2.
Are formed.
ここで第10図に詳細に示すように、上記すくい面５
は、主切刃７に連なるランド９と、このランド９からチ
ツプ内方に向かって平坦に傾斜する傾斜面10と、この傾
斜面10から正面逃げ面６に向かって延びるブレーカ面11
とから構成されている。そして、上記副切刃８は、上記
傾斜面10と多角形面１、２との稜線部に形成されてい
る。Here, as shown in detail in FIG.
Is a land 9 connected to the main cutting edge 7, an inclined surface 10 inclined flat from the land 9 toward the inside of the chip, and a breaker surface 11 extending from the inclined surface 10 toward the front flank 6.
It is composed of The sub-cutting edge 8 is formed at the ridge between the inclined surface 10 and the polygonal surfaces 1 and 2.
このように構成されたチツプ12にあっては、第11図及
び第12図に示すように、その多角形面１、２のいずれか
一方が、円板状をなす工具本体13のチツプ取付座14に工
具の両側から交互に密着せしめられることによって工具
周方向に千鳥状に配置され、ボルト15で締め付けられて
工具本体13と一体化される。これにより、チツプ12の主
切刃７及び副切刃８がそれぞれ工具外周及び側方に所定
量突出し、主切刃７に所定の径方向すくい角PR及び軸方
向すくい角ARが与えられる。この状態でチツプ12は工具
本体13とともに工具周方向に回転せしめられて被削材の
溝加工に供される。In the chip 12 configured as described above, as shown in FIGS. 11 and 12, one of the polygonal surfaces 1 and 2 has a chip mounting seat of a disk-shaped tool body 13. The tool is alternately brought into close contact with the tool from both sides, so that the tool is arranged in a staggered manner in the circumferential direction of the tool, and is fastened with bolts 15 to be integrated with the tool body 13. As a result, the main cutting edge 7 and the sub cutting edge 8 of the chip 12 protrude by a predetermined amount toward the outer periphery and the side of the tool, respectively, and the main cutting edge 7 is given a predetermined radial rake angle PR and an axial rake angle AR. In this state, the chip 12 is rotated together with the tool body 13 in the circumferential direction of the tool, and is used for groove machining of the work material.
ところで、上述のチツプ12を工具本体13に装着する場
合、第11図及び第13図に示すように、工具側方に面する
多角形面１、２は主切刃７の外端Ｐを頂点として工具幅
方向中心側へ所定の逃げ角α1、α2で傾けられて外周逃
げ面とされる。これは、主切刃７及び副切刃８によって
被削材に削成される溝部と側壁と多角形面１、２及び正
面逃げ面６との間の摩擦を回避して、チツプ寿命の向上
及び切削抵抗の低減を図るためである。When the above-mentioned chip 12 is mounted on the tool body 13, the polygonal surfaces 1 and 2 facing the tool side face the outer end P of the main cutting edge 7 as shown in FIGS. Are inclined at predetermined clearance angles α 1 and α 2 toward the center side in the tool width direction to form an outer peripheral flank. This avoids friction between the side walls and the polygonal surfaces 1 and 2 and the front flank 6 by the main cutting edge 7 and the sub-cutting edge 8, thereby improving the chip life. And for reducing the cutting resistance.
［考案が解決しようとする課題］ しかしながら、上述のごとくチツプを傾斜させて取り
付けた場合、副切刃８は、主切刃７の外端Ｐから工具径
方向中心側に向かうに従って工具幅方向中心側に漸次後
退する。このため、被削材に削成される溝部の幅が変化
する等の加工精度の劣化が生じ、また切刃強度が劣化し
てチツプ欠損が生じ易くなるという欠点があった。[Problem to be Solved by the Invention] However, when the tip is mounted with an inclination as described above, the sub-cutting edge 8 moves from the outer end P of the main cutting edge 7 toward the center in the tool radial direction in the center in the tool width direction. Retreat gradually to the side. For this reason, there has been a defect that machining accuracy is deteriorated, such as a change in the width of a groove portion to be cut in the work material, and a cutting edge strength is deteriorated, and chip defects are likely to occur.
このような欠点を解消するには、チツプ多角形面１、
２の逃げ角α1、α2を小さくして副切刃８の逃げを小さ
くすれば良いが、この場合には主切刃７によって削成さ
れる被削材溝部の側壁と多角形面１、２及び正面逃げ面
６との干渉量が増加するため、これら多角形面１、２等
の摩耗が促進されてチツプ寿命が低下するという新たな
問題が生じる。In order to eliminate such disadvantages, the chip polygon surface 1,
The clearance angles α 1 and α 2 of the second cutting edge 2 may be reduced to reduce the clearance of the sub cutting edge 8. In this case, the side wall of the work material groove portion cut by the main cutting edge 7 and the polygonal surface 1 Since the interference amount with the front flank 6 increases, wear of the polygonal surfaces 1, 2 and the like is promoted, and a new problem that the chip life is shortened occurs.
この考案は、このような背景の下になされたもので、
外周逃げ面及び正面逃げ面の摩耗を回避しつつ従来より
も溝加工精度及び切刃強度を向上させることができるチ
ツプを提供することを目的とする。This idea was made in such a background,
An object of the present invention is to provide a chip capable of improving groove machining accuracy and cutting edge strength as compared with the conventional one while avoiding wear of the outer peripheral flank and the front flank.
［課題を解決するための手段］ 上記課題を解決するためにこの考案は、チツプ周囲の
外形側面の稜線部に主切刃が形成され、この主切刃に連
なるすくい面と多角形面との稜線部に副切刃が形成され
てなるチツプであって、上記すくい面のうち副切刃に連
なる部分が、該副切刃が延びる方向に湾曲する凸曲面状
に形成されてなるものである。[Means for Solving the Problems] In order to solve the above problems, the present invention is directed to a method in which a main cutting edge is formed on a ridge portion of an outer peripheral side surface around a chip, and a rake face and a polygonal face connected to the main cutting edge are formed. A chip in which a sub-cutting edge is formed in a ridge portion, wherein a portion of the rake face connected to the sub-cutting edge is formed in a convex curved surface curved in a direction in which the sub-cutting edge extends. .
［作用］ 上記構成によれば、副切刃がすくい面に沿って凸曲線
状に湾曲するため、チツプを工具本体に装着する際に、
工具側方を向く多角形面を従来と同様に主切刃の端部を
頂点として工具幅方向中心側に傾斜させた場合、副切
刃、主切刃の端部から工具径方向中心側に向かうに従っ
て工具側方に突出する凸曲線を描きつつ工具幅方向中心
側に漸次後退する。このため、副切刃の逃げ角が従来よ
りも減少し、切刃強度が向上するとともに被削材に削成
される溝部の加工精度も向上する。[Operation] According to the above configuration, since the sub cutting edge curves in a convex curve along the rake face, when the chip is mounted on the tool body,
When the polygonal surface facing the tool side is inclined toward the center in the tool width direction with the end of the main cutting edge as the vertex as in the past, the sub cutting edge and the end of the main cutting edge move toward the center in the tool radial direction from the end of the main cutting edge. The tool gradually retreats toward the center in the tool width direction while drawing a convex curve protruding toward the tool side as it goes. For this reason, the clearance angle of the sub-cutting edge is smaller than before, the cutting edge strength is improved, and the machining accuracy of the groove cut in the work material is also improved.
［実施例］ 以下、第１図ないし第７図を参照して、本考案の一実
施例を説明する。An embodiment of the present invention will be described below with reference to FIGS. 1 to 7.
第１図及び第２図に示すように、本実施例のチツプ
は、超硬合金を素材として全体を略正方形平板状に形成
してなるものである。このチツプの多角形面21、22は互
いに平行をなし、その中心部には当該チツプを貫くボル
ト孔23が形成されている。As shown in FIG. 1 and FIG. 2, the chip of the present embodiment is made of a cemented carbide material as a whole and formed in a substantially square plate shape. The polygonal surfaces 21 and 22 of this chip are parallel to each other, and a bolt hole 23 is formed in the center of the chip so as to penetrate the chip.
また、チツプの外形側面24…は、当該チツプの内部に
向けて陥没するブレーカ溝状のすくい面25a〜25dと、多
角形面21、22と直交する平面に形成された正面逃げ面26
a〜26dとから構成されている。そして、隣接する２つの
外形側面24の稜線部にはそれぞれ主切刃27〜30が形成さ
れている。Further, the outer side surfaces 24 of the chips are provided with breaker groove-shaped rake surfaces 25a to 25d which are depressed toward the inside of the chips, and front flank surfaces 26 formed in a plane orthogonal to the polygon surfaces 21 and 22.
a to 26d. The main cutting edges 27 to 30 are formed on the ridges of the two adjacent outer side surfaces 24, respectively.
ここで、第１図及び第３図に示すように、各すくい面
25a〜25dは、上記主切刃27〜30に沿ってチツプ幅方向に
延びるランド31と、このランド31の後端から正面逃げ面
26a〜26dに向かって連続する第１〜第３曲面32〜34とか
ら構成されている。Here, as shown in FIGS. 1 and 3, each rake face
25a to 25d are lands 31 extending in the chip width direction along the main cutting edges 27 to 30, and a front flank from the rear end of the lands 31.
It comprises first to third curved surfaces 32 to 34 that are continuous toward 26a to 26d.
第１曲面32は、ランド31の後端から離間するに従って
円弧状に膨らみつつチツプ内方に傾斜する凸曲面状に形
成されている。また、第２曲面33は、第１曲面32の後端
から離間するに従ってチツプ内方へ円弧状に陥没する凹
曲面状に形成され、さらに第３曲面34は、第２曲面33の
後端から上記逃げ面26a〜26dに向かって円弧状に延びる
凹曲面状に形成されている。そして、上記多角形面21、
22と上記第１曲面32との稜線部には副切刃35…が形成さ
れている。すなわち、上記第１曲面32は、この副切刃35
が延びる方向に沿って膨らむように湾曲する凸曲面状に
形成されることとなり、従って、その稜線部に形成され
る当該副切刃35も、上記多角形面21、22側から見て第３
図に示すように、主切刃27〜30側から離間するに従い円
弧状に膨らみつつチツプ内方に傾斜する凸曲線状に形成
されることとなる。The first curved surface 32 is formed in a convex curved shape in which the first curved surface 32 is swelled in an arc shape as the distance from the rear end of the land 31 increases and is inclined inwardly of the chip. The second curved surface 33 is formed in a concave curved surface in which the second curved surface 33 is depressed in an arc shape inward as the distance from the rear end of the first curved surface 32 increases. It is formed in a concave curved surface shape extending in an arc toward the flank surfaces 26a to 26d. And the polygon surface 21,
Sub cutting edges 35 are formed at the ridge line between the first curved surface 32 and the second curved surface 32. That is, the first curved surface 32 is
Is formed to have a convex curved surface curved so as to bulge along the direction in which the second cutting edge 35 extends from the polygonal surface 21, 22 side.
As shown in the figure, as the distance from the main cutting blades 27 to 30 increases, it is formed in a convex curve shape which inflates in an arc shape and inclines inwardly of the chip.
一方、第１図及び第２図に示すように、上記正面逃げ
面26a〜26dと多角形面21、22との稜線部には逃げ面26a
〜26d及び多角形面21、22に対してほぼ45°で傾斜する
切欠面36…が形成されている。これら切欠面36は、切削
時における正面逃げ面26a〜26dと被削材との干渉を最小
限に止どめて逃げ面26a〜26dの摩耗を抑制する等のため
に設けられたもので、その一端が上記すくい面25a〜25d
の第３曲面34の底部に達する一方で、他端側は上記主切
刃27〜30から適当な距離を隔てた位置で逃げ面26a〜26d
と円弧面を介して滑らかに連続し、切刃強度を不当に劣
化させることがないように配慮がされている。On the other hand, as shown in FIGS. 1 and 2, a flank 26a is formed at the ridge between the front flank 26a to 26d and the polygonal surfaces 21 and 22.
26d and cutout surfaces 36 inclined at approximately 45 ° with respect to the polygonal surfaces 21 and 22 are formed. These notched surfaces 36 are provided for minimizing interference between the front flank surfaces 26a to 26d and the work material during cutting and suppressing wear of the flank surfaces 26a to 26d, and the like. One end is the rake face 25a-25d
While reaching the bottom of the third curved surface 34, while the other end is located at a suitable distance from the main cutting edges 27 to 30 and has a clearance surface 26a to 26d.
And smooth through the arc surface, so that the strength of the cutting edge is not unduly degraded.
次に以上のように構成されたチツプの作用を説明す
る。Next, the operation of the chip configured as described above will be described.
第４図ないし第６図に示すように、本実施例のチツプ
40は、円板状の工具本体41の外周縁部に設けられたチツ
プ取付座42に工具の両側から交互に装着されてボルト43
で締め付けられることにより、工具周方向に千鳥状に配
置される（図では一のチツプのみ示す）。As shown in FIG. 4 to FIG.
The bolts 43 are alternately mounted from both sides of the tool on chip mounting seats 42 provided on the outer peripheral edge of a disk-shaped tool body 41.
, They are arranged in a staggered manner in the tool circumferential direction (only one chip is shown in the figure).
この際、チツプ40の多角形面21、22のいずれか一方は
チツプ取付座の底面42aに密着せしめられ、また、隣接
する二つの外形側面24はチツプ取付座42の拘束面42b、4
2cに密着せしめられる。これにより、チツプ40が所定位
置に位置決めされ、工具外周に突出する主切刃27に所定
の径方向すくい角RR及び軸方向すくい角ARが与えられ
る。また、工具側方を向く多角形面21、22は上述した従
来のチツプと同様に主切刃27の外端Ｐを頂点として工具
幅方向中心側へ所定の逃げ角α1、α2で傾けられて外周
逃げ面とされる。At this time, one of the polygonal surfaces 21 and 22 of the chip 40 is brought into close contact with the bottom surface 42a of the chip mounting seat, and two adjacent external side surfaces 24 are restrained surfaces 42b and 4 of the chip mounting seat 42.
Closely attached to 2c. Thus, the chip 40 is positioned at a predetermined position, and a predetermined radial rake angle RR and a predetermined axial rake angle AR are given to the main cutting edge 27 protruding from the outer periphery of the tool. The polygonal surfaces 21 and 22 facing the tool are inclined at predetermined clearance angles α 1 and α 2 toward the center in the tool width direction with the outer end P of the main cutting edge 27 as the apex, similarly to the above-described conventional chip. To form an outer peripheral flank.
ここで、本実施例のチツプ40においては、すくい面25
a〜25dのうちで凸曲形状をなす第１曲面32と多角形面2
1、22との稜線部に副切刃35が形成されているため、第
７図に示すように、チツプ40を傾けた状態において、副
切刃35は、主切刃27の外端Ｐから工具径方向中心側に向
かうに従って、工具側方に突出する凸曲線を描きつつ工
具幅方向中心側に漸次後退する。従って、工具本体装着
時に外周逃げ面とされるチツプ多角形面21、22の逃げ角
α1、α2を従来と同一に設定しても、副切刃35の工具幅
方向への後退量は従来の場合（第７図に二点鎖線で示
す）よりも小さくなる。このため、本実施例のチツプに
よれば、主切刃２に連なる多角形面21、22及び正面逃げ
面26bの摩耗を回避しつつ被削材Ｗの溝加工精度を向上
させることができ、さらには切刃強度も向上する。Here, in the chip 40 of this embodiment, the rake face 25
The first curved surface 32 and the polygonal surface 2 forming a convex curved shape among a to 25d
Since the sub-cutting edge 35 is formed at the ridge line between the main cutting edge 27 and the main cutting edge 27, as shown in FIG. As it moves toward the center in the tool radial direction, it gradually retreats toward the center in the tool width direction while drawing a convex curve protruding to the side of the tool. Therefore, even if the clearance angles α 1 and α 2 of the chip polygonal surfaces 21 and 22 which are used as the outer peripheral flank when the tool body is mounted are set to be the same as those in the related art, the retreat amount of the sub-cutting edge 35 in the tool width direction is not increased. It becomes smaller than the conventional case (shown by a two-dot chain line in FIG. 7). For this reason, according to the tip of this embodiment, it is possible to improve the groove machining accuracy of the work material W while avoiding wear of the polygonal surfaces 21 and 22 and the front flank 26b connected to the main cutting edge 2, Further, the cutting edge strength is also improved.
なお、本実施例のチツプ40は、特に４つのコーナー部
にそれぞれ主切刃27〜30が設けられ、主切刃27、29が使
用される際には多角形面22がチツプ取付座42への着座面
とされ、他方主切刃28、30が使用される際には多角形面
21が着座面とされるものであるが、本考案はこのような
両面使用のものに限らず、例えば主切刃が一のコーナー
部にのみ形成されたものであっても当然に適用し得るも
のである。The chip 40 of this embodiment is provided with main cutting edges 27 to 30 at the four corners, respectively, and when the main cutting edges 27 and 29 are used, the polygonal surface 22 is connected to the chip mounting seat 42. The main cutting edge 28, 30 is used when the polygonal surface is used.
Although 21 is a seating surface, the present invention is not limited to such a double-sided use, and can be naturally applied even if the main cutting edge is formed only at one corner portion, for example. Things.
また、チツプ形状も正方形平板状に限らず、三角形平
板状等種々変形可能である。Also, the chip shape is not limited to a square flat plate shape, but may be variously modified, such as a triangular flat plate shape.
さらに、上記実施例では特にチツプを工具本体の外周
部に装着する例について説明したが、本考案はこれに限
るものではなく、例えば円環状をなす工具本体の内周側
にチツプを装着する場合でも同様の効果を奏するもので
ある。Furthermore, in the above-described embodiment, an example in which the chip is mounted on the outer peripheral portion of the tool body is particularly described. However, the present invention is not limited to this. For example, when the chip is mounted on the inner peripheral side of the annular tool body. However, the same effect can be obtained.
［考案の効果］ 以上説明したように、この考案においては、副切刃が
すくい面に沿って凸曲線を描くため、チツプの多角形面
を工具本体に対して特定方向へ傾けて装着した場合に副
切刃に与えられる工具幅方向への逃げが従来よりも減少
する。このため、本考案のチツプによれば、工具装着時
に外周逃げ面とされる多角形面と、主切刃に連なる正面
逃げ面の摩耗を回避しつつ被削材に削成される溝部の加
工精度を向上させることができ、さらには切刃強度も向
上するという優れた効果を奏する。[Effects of the Invention] As described above, in the present invention, since the sub-cutting edge draws a convex curve along the rake face, when the polygonal surface of the chip is mounted in a specific direction with respect to the tool main body. Thus, the escape in the tool width direction given to the sub cutting edge is reduced as compared with the conventional case. For this reason, according to the chip of the present invention, the machining of the groove formed in the work material while avoiding wear of the polygonal surface which is the outer peripheral flank when the tool is mounted and the front flank connected to the main cutting edge. It is possible to improve the accuracy, and furthermore, it is possible to obtain an excellent effect that the strength of the cutting edge is also improved.
第１図ないし第３図は本考案の一実施例を示す図で、第
１図はチツプの正面図、第２図は側面図、第３図はチツ
プの刃先部分の拡大図、 第４図は第１図に示すチツプを工具本体に装着した状態
を示す図、第５図は第４図の上方からの矢視図、第６図
は第４図の左方からの矢視図、第７図は第４図における
チツプ刃先部分の拡大図、 第８図ないし第10図は従来例のチツプを示す図で、第８
図は正面図、第９図は側面図、第10図は刃先部分の拡大
図、 第11図ないし第13図は従来例のチツプを工具本体に装着
した状態を示す図で、第11図は側面図、第12図は平面
図、第13図は刃先部分の拡大図である。 21・22……多角形面、24……外形側面、25a・25b・25c
・25d……すくい面、26a・26b・26c・26d……正面逃げ
面、27・28・29・30……主切刃、35……副切刃、41……
工具本体、42……チツプ取付座。1 to 3 are views showing an embodiment of the present invention. FIG. 1 is a front view of the chip, FIG. 2 is a side view, FIG. 3 is an enlarged view of the tip of the chip, FIG. FIG. 5 is a view showing a state in which the chip shown in FIG. 1 is mounted on the tool body, FIG. 5 is a view from above in FIG. 4, FIG. 6 is a view from left in FIG. FIG. 7 is an enlarged view of the tip of the tip in FIG. 4, and FIGS. 8 to 10 are views showing a conventional tip.
Fig. 9 is a front view, Fig. 9 is a side view, Fig. 10 is an enlarged view of a cutting edge portion, Figs. 11 to 13 are views showing a state in which a conventional chip is mounted on a tool body, and Fig. 11 is FIG. 12 is a side view, FIG. 12 is a plan view, and FIG. 13 is an enlarged view of a cutting edge portion. 21 ・ 22 …… Polygon surface, 24 …… Outside surface, 25a ・ 25b ・ 25c
・ 25d …… Rake face, 26a ・ 26b ・ 26c ・ 26d …… Front flank face, 27 ・ 28 ・ 29 ・ 30 …… Main cutting edge, 35 …… Sub cutting edge, 41 ……
Tool body, 42 ... Chip mounting seat.
Claims (1)
れか一方が円板状をなす工具本体の側面周縁部のチップ
取付座に密着される着座面とされ、他方が外周逃げ面と
されるとともに、隣接する二つの外形側面の一方にブレ
ーカ溝状のすくい面が形成され、他方の側面が正面逃げ
面とされ、これらすくい面と正面逃げ面との稜線部に主
切刃が、上記外周逃げ面とされる側の多角形面と上記す
くい面との稜線部に副切刃が各々形成されてなるスロー
アウェイチップにおいて、 上記すくい面の上記副切刃に連なる部分を、該副切刃が
延びる方向に湾曲する凸曲面状に形成したことを特徴と
するスローアウェイチップ。1. A polygonal flat plate, one of the polygonal surfaces of which is a seating surface which is in close contact with a chip mounting seat on a side edge of a disk-shaped tool body, and the other is an outer peripheral flank. At the same time, a breaker groove-shaped rake face is formed on one of two adjacent outer side faces, and the other side is a front flank, and a main cutting edge is provided at a ridge line between the rake face and the front flank. In a throwaway tip in which a sub-cutting edge is formed at a ridge portion of the polygonal surface and the rake surface on the side to be the outer peripheral flank, a portion connected to the sub-cutting edge of the rake face, A throwaway tip formed in a convex curved shape curved in a direction in which a sub cutting edge extends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990026843U JP2556373Y2 (en) | 1990-03-16 | 1990-03-16 | Throw-away tips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990026843U JP2556373Y2 (en) | 1990-03-16 | 1990-03-16 | Throw-away tips |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03117503U JPH03117503U (en) | 1991-12-04 |
| JP2556373Y2 true JP2556373Y2 (en) | 1997-12-03 |
Family
ID=31529722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990026843U Expired - Fee Related JP2556373Y2 (en) | 1990-03-16 | 1990-03-16 | Throw-away tips |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2556373Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2722122B1 (en) * | 2011-06-17 | 2020-10-14 | Tungaloy Corporation | Cutting insert and rotary cutting tool |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4870970A (en) * | 1971-12-28 | 1973-09-26 | ||
| JPS60157120U (en) * | 1984-03-28 | 1985-10-19 | 三菱マテリアル株式会社 | Polygonal throw-away tip |
-
1990
- 1990-03-16 JP JP1990026843U patent/JP2556373Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03117503U (en) | 1991-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2587549B2 (en) | Milling cutting inserts | |
| JP2580376B2 (en) | Outer rotary milling cutter | |
| KR100430868B1 (en) | A cutting insert with a rounded corner | |
| US5718540A (en) | Cutting insert having cutting edges formed with sloping lateral portions | |
| JP3166022B2 (en) | Indexable insert and method of manufacturing the same | |
| KR20010053502A (en) | A tangential cutting insert | |
| JPH09207007A (en) | Throw-away chip with honing | |
| JP4243087B2 (en) | Throw away tip and rotary tool using the same | |
| JPH04115521U (en) | milling tool | |
| JPH07246505A (en) | Throw away chip and cutting tool | |
| JPH07237027A (en) | Throwaway tip and cutting tool | |
| US5921723A (en) | Cutting insert and cutting tool assembly | |
| JPH09174323A (en) | Throw-away tip and throw-away type cutter | |
| JP2556373Y2 (en) | Throw-away tips | |
| JPH10138033A (en) | Throw away tip | |
| JP3185518B2 (en) | Indexable inserts and cutters | |
| JP2567787Y2 (en) | Throw-away tips | |
| JP3314512B2 (en) | Indexable tip | |
| JPH0871834A (en) | Throw away tip | |
| JPH031137Y2 (en) | ||
| JP2556374Y2 (en) | Throw-away tips | |
| JPH0857709A (en) | Throw-away tip | |
| JPS61214909A (en) | Throw away tip | |
| JPH088014Y2 (en) | Throw-away tip | |
| JP2543718Y2 (en) | Throw-away tips |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |