JP2565479Y2 - Throw-away tips - Google Patents
Throw-away tipsInfo
- Publication number
- JP2565479Y2 JP2565479Y2 JP1990027866U JP2786690U JP2565479Y2 JP 2565479 Y2 JP2565479 Y2 JP 2565479Y2 JP 1990027866 U JP1990027866 U JP 1990027866U JP 2786690 U JP2786690 U JP 2786690U JP 2565479 Y2 JP2565479 Y2 JP 2565479Y2
- Authority
- JP
- Japan
- Prior art keywords
- cutting edge
- chip
- chip breaker
- chips
- transverse 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 - 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、鋼や鋳鉄等の被削材に、溝入れ加工や倣
い加工を行うための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 for performing grooving or copying on a work material such as steel or cast iron.
［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７図ないし第９図に示
すものが知られている。[Prior Art] Conventionally, as this type of throw-away chip (hereinafter abbreviated as chip), for example, those shown in FIGS. 7 to 9 are known.
これらの図に示すチツプ１は、超硬合金を略直方体状
に形成してなるもので、その上面２の両端側にすくい面
３・３が形成され、側面４・４の両端側に横逃げ面５・
５が形成されるとともに、前逃げ面とされる両端面６・
６と上記すくい面３との稜線部に前切刃７・７が形成さ
れ、上記すくい面３と、横逃げ面との稜線部に横切刃８
…が形成されている。また、チツプ１の下面９は、後述
する工具ホルダのチツプ取付座に確実に取り付けられる
ように略Ｖ字状をなす凸面に形成されている。そして、
すくい面３の中央部には該すくい面３から突出するチツ
プブレーカ10が形成されている。The chip 1 shown in these figures is made of a cemented carbide in a substantially rectangular parallelepiped shape, and has rake faces 3.3 formed on both ends of an upper surface 2 thereof, and lateral escapes formed on both ends of the side faces 4. Face 5
5 are formed, and both end faces 6.
A front cutting edge 7.7 is formed at the ridge between the rake face 6 and the rake face 3, and a horizontal cutting edge 8 is formed at the ridge between the rake face 3 and the lateral flank.
... are formed. The lower surface 9 of the chip 1 is formed in a substantially V-shaped convex surface so as to be securely mounted on a chip mounting seat of a tool holder described later. And
A chip breaker 10 protruding from the rake face 3 is formed at the center of the rake face 3.
このように構成されたチツプ１は、第10図に示すよう
に、略角柱状をなす工具ホルダ11の先端部のチツプ取付
座（図示略）に記載され、この後、上面２の中央部がク
ランプ機構12で工具下面に押し込まれることにより、そ
の前切刃７が工具前方へ突出した状態で工具ホルダ11に
着脱自在に装着される。As shown in FIG. 10, the chip 1 configured as described above is described on a chip mounting seat (not shown) at the tip of a tool holder 11 having a substantially prismatic shape. By being pushed into the lower surface of the tool by the clamp mechanism 12, the front cutting edge 7 is detachably mounted on the tool holder 11 in a state of protruding forward of the tool.
そして、以上のようにチツプ１が装着された後、第10
図に示すように工具ホルダ11が被削材Ｗの径方向中心側
に送り出されるとともに、被削材Ｗが軸線回りに回転せ
しめられることにより、前切刃７が被削材Ｗに切り込ま
れて被削材Ｗに溝部13が形成される。また、第11図に示
すように、チツプ１が被削材Ｗの径方向へ所定量切り込
まれた状態から工具ホルダ11が被削材Ｗの軸線方向に送
り出されることにより、溝部側壁13aが横切刃８で削ら
れて溝部13が拡大される。After the chip 1 is mounted as described above, the tenth
As shown in the figure, the tool holder 11 is sent out toward the center in the radial direction of the work material W, and the work material W is rotated around the axis so that the front cutting edge 7 is cut into the work material W. Thus, a groove 13 is formed in the work material W. Further, as shown in FIG. 11, the tool holder 11 is fed in the axial direction of the work material W from a state where the chip 1 is cut in the radial direction of the work material W by a predetermined amount, so that the groove side wall 13a is formed. The groove 13 is cut by the transverse cutting edge 8 and the groove 13 is enlarged.
ここで、上記加工時においては、工具ホルダ11を被削
材Ｗの径方向あるいは軸線方向のいずれに送り出す場合
でも、前切刃７又は横切刃８で切屑14が生成され、これ
ら切屑14はカールしつつ工具ホルダ11の送り方向と逆方
向へ成長する。しかしながら、上記チツプ１のすくい面
３の中央部にはチツプブレーカ10が設けられているた
め、上記切屑14はカールする段階で細かく分断されて排
出される。従って、上記チツプ１によれば、溝入れ加工
や溝拡大加工を行う限り、切屑14の噛み込み等を防止し
て円滑な溝加工を行い得る。Here, in the above-mentioned machining, chips 14 are generated by the front cutting edge 7 or the horizontal cutting edge 8 regardless of whether the tool holder 11 is fed in the radial direction or the axial direction of the workpiece W, and these chips 14 It grows in the direction opposite to the feed direction of the tool holder 11 while curling. However, since the chip breaker 10 is provided at the center of the rake face 3 of the chip 1, the chips 14 are finely divided and discharged at the stage of curling. Therefore, according to the chip 1, as long as the grooving process or the groove enlarging process is performed, the chip 14 can be prevented from being caught and smooth groove processing can be performed.
また、第13図ないし第15図に示すチツプ16は、上述し
たチツプ１のチツプブレーカ10の変形例として実開昭59
−116106号に示されたものである。この例では、すくい
面３に、前切刃７に連なる凹溝状の第１のチツプブレー
カ17が形成されるとともに、前切刃７及び横切刃８が接
するコーナ部の近傍に、すくい面３から突出する第２の
チツプブレーカ18が形成され、前切刃７で生成された切
屑が第１のチツプブレーカ17に沿ってカールして分断さ
れ、他方、横切刃８で生成された切屑が第２のチツプブ
レーカ18に衝突して分断されるようになっている。A chip 16 shown in FIGS. 13 to 15 is a modified example of the chip breaker 10 of the chip 1 described above.
No. 116116. In this example, a first grooved chip breaker 17 connected to the front cutting edge 7 is formed on the rake face 3, and a rake face is formed near the corner where the front cutting edge 7 and the horizontal cutting edge 8 come into contact. A second chip breaker 18 protruding from the third chip 3 is formed, and chips generated by the front cutting edge 7 are curled and separated along the first chip breaker 17, while chips generated by the horizontal cutting edge 8 are formed. Collides with the second chip breaker 18 and is cut off.
［考案が解決しようとする課題］ ところで、上述した従来のチツプ１で溝加工を行う場
合、第12図に示すように溝部13の側壁13aを傾斜面状に
形成すべく、加工終了時に工具ホルダ11を被削材Ｗの径
方向に対して斜めに引き上げてチツプ１の横切刃８で溝
部13の側壁13aを切削することがある。[Problem to be Solved by the Invention] By the way, when the groove is formed by the above-mentioned conventional chip 1, a tool holder is formed at the end of the processing so as to form the side wall 13a of the groove 13 as an inclined surface as shown in FIG. In some cases, the side wall 13a of the groove 13 is cut by the transverse cutting edge 8 of the chip 1 by raising the workpiece 11 obliquely with respect to the radial direction of the workpiece W.
このような引き上げ加工を行う場合、横切刃８の切込
量が上述した第10図、第11図に示す溝加工時の前切刃７
や横切刃８の切込量よりも小さくなることから、横切刃
８で生成される切屑15は、上述の切屑14に比して相当に
薄く弾性に富むものとなる。その一方、上記チツプブレ
ーカ10は、比較的厚く脆性が大きい切屑14に対して有効
に働くようにその高さ、壁面形状あるいは切刃７、８か
らの距離等の形状寸法が定められている。When such a lifting process is performed, the cutting depth of the horizontal cutting edge 8 is set to be equal to that of the front cutting edge 7 shown in FIGS.
Since the cutting amount becomes smaller than the cutting amount of the horizontal cutting edge 8, the chips 15 generated by the horizontal cutting edge 8 are considerably thinner and richer in elasticity than the aforementioned chips 14. On the other hand, the chip breaker 10 has a height, a wall shape, and a shape and a size such as a distance from the cutting blades 7 and 8 so as to effectively work on the chip 14 which is relatively thick and brittle.
このため、上記引き上げ加工時においては、生成され
る切屑15に対してチツプブレーカ10が有効に働かず、横
切刃８と溝部側壁13aとの間に切屑15が噛み込まれて加
工面の損傷や横切刃８の欠損等が生じることさえあっ
た。For this reason, at the time of the above-mentioned pulling processing, the chip breaker 10 does not effectively act on the generated chips 15, and the chips 15 are caught between the transverse cutting edge 8 and the groove side wall 13 a to damage the processing surface. In some cases, the transverse cutting edge 8 may be lost.
一方、上述した第13図ないし第15図に示すチツプ16に
おいては、第２のチツプブレーカ18が横切刃８の近傍に
位置しているので、上述の引き上げ加工時に生成される
切屑15に対しては比較的効果的である。しかしながら、
逆に溝拡大加工を行う際には、横切刃８から生成される
切屑14に対してチツププレーカ18が過度に働き過ぎてか
えって切屑詰まり等の弊害が生じる欠点があった。On the other hand, in the chip 16 shown in FIGS. 13 to 15 described above, since the second chip breaker 18 is located near the transverse cutting edge 8, the chip 15 generated at the time of the above-described pulling processing is removed. Is relatively effective. However,
Conversely, when performing the groove enlarging process, there is a disadvantage that the chip breaker 18 works excessively with respect to the chips 14 generated from the horizontal cutting blades 8 and adversely causes clogging of the chips.
この考案は、このような背景の下になされたもので、
上述の溝入れ加工、溝拡大加工及び引き上げ加工のいず
れの場合でも切屑を細かく分断して円滑に排出し得るチ
ツプを提供することを目的とする。This idea was made in such a background,
It is an object of the present invention to provide a chip capable of finely cutting chips and smoothly discharging chips in any of the above-described grooving, groove enlarging, and lifting.
［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、すくい面に、
前切刃に面する第１の起立壁と横切刃に面する第２の起
立壁とを有する第１のチツプブレーカを形成し、この第
１のチツプブレーカの上記第２の起立壁よりも上記横切
刃に近くかつ横切刃後端寄りの位置に、上記第１のチツ
プブレーカよりも小さい突起状の第２のチップブレーカ
を形成したものである。[Means for solving the problem] In order to solve the above-mentioned problem, the present invention provides a rake face
A first chipbreaker is formed having a first upstanding wall facing the front cutting edge and a second upstanding wall facing the transverse cutting edge, the first chipbreaker having a first upright wall which is higher than the second upstanding wall of the first upbreaker. A projecting second chip breaker smaller than the first chip breaker is formed at a position close to the transverse cutting edge and near the rear end of the transverse cutting edge.
［作用］ 上記構成によれば、上述した溝入れ加工時に前切刃か
ら生成される切屑は、第１のチツプブレーカの第１の起
立壁に衝突して分断される。また、溝部の引き上げ加工
時に横切刃から生成される切屑は、第１のチツプブレー
カよりも横切刃に近くかつ横切刃の後端寄りに設けられ
た小さな第２のチツプブレーカに衝突して分断される。
さらに、溝拡大加工時に横切刃から生成される切屑は、
小さな第２のチツプブレーカを乗り越え、第１のチツプ
ブレーカの第２の起立壁に衝突して分断される。[Operation] According to the above configuration, chips generated from the front cutting edge during the above-described grooving work collide with the first upright wall of the first chip breaker and are separated. Also, chips generated from the transverse cutting edge during the lifting process of the groove collides with a small second chip breaker provided closer to the transverse cutting edge than the first chip breaker and near the rear end of the transverse cutting edge. Divided.
Furthermore, the chips generated from the transverse cutting edge during groove enlargement processing are:
It breaks over the small second chip breaker and collides with the second upstanding wall of the first chip breaker and is severed.
［実施例］ 以下、第１図ないし第６図を参照して、本考案の一実
施例を説明する。なお、上述した第７図ないし第12図に
示す従来例と同一の構成要素には同一符号を付し、その
説明を省略する。An embodiment of the present invention will be described below with reference to FIGS. 1 to 6. The same components as those in the conventional example shown in FIGS. 7 to 12 are denoted by the same reference numerals, and description thereof will be omitted.
第１図ないし第３図に示すように、本実施例のチツプ
20は、超硬合金を略直方体状に成形してなるもので、上
述した第７図ないし第９図に示す従来のチツプ１と同様
に、その上面２の両端側にすくい面３が、側面４の両端
側に横逃げ面５がそれぞれ形成されるとともに、前逃げ
面とされる両端面６とすくい面３との稜線部に前切刃７
が、すくい面３と横逃げ面５との稜線部に横逃げ面８が
形成されている。As shown in FIG. 1 to FIG.
Numeral 20 is formed by molding a cemented carbide into a substantially rectangular parallelepiped shape. As in the case of the conventional chip 1 shown in FIGS. 4 are formed at both end sides, respectively, and a front cutting edge 7 is formed at a ridge line between the end face 6 and the rake face 3 which are front flank faces.
However, a lateral flank 8 is formed at the ridge line between the rake face 3 and the lateral flank 5.
そして、上記すくい面３の中央部には、該すくい面３
から突出する第１のチツプブレーカ21が形成されてい
る。この第１のチツプブレーカ21は、前切刃７に面する
第１の起立壁22と、横切刃８に面する第２の起立壁23と
を有してなるものである。これら第１、第２の起立壁2
2、23の上下方向の高さh1は、被削材の材質や切削条件
等に応じて適宜定められる。The rake face 3 is provided at the center of the rake face 3.
A first chip breaker 21 projecting from the first chip breaker 21 is formed. The first chip breaker 21 has a first upright wall 22 facing the front cutting edge 7 and a second upstanding wall 23 facing the horizontal cutting edge 8. These first and second standing walls 2
Vertical height h 1 of 2, 23 is determined appropriately according to such material and cutting conditions of the workpiece.
また、上記第１のチツプブレーカ21の第２の起立壁23
よりも横切刃８に近くかつ横切刃８の後端側、すなわち
チツプ20の中心側よりの位置には、第１のチツプブレー
カ21よりも小さい第２のチツプブレーカ24…が各横切刃
８に沿って二つづつ合計４個形成されている。これら第
２のチツプブレーカ24は、いずれもすくい面３から略円
錐状に突出する突起状に形成されている。なお、これら
第２のチツプブレーカ24の高さh2は、上記第１のチツプ
ブレーカ21と同様に被削材の材質や切削条件等に応じて
適宜定めて良い。また、第２のチツプブレーカ24の個数
については、必ずしも各横切刃８について２個づつ設け
る必要はなく、横切刃８の長さ等に応じて適宜増減して
も良い。Further, the second upright wall 23 of the first chip breaker 21 is provided.
The second chip breakers 24... Smaller than the first chip breaker 21 are located at a position closer to the transverse cutting edge 8 and at the rear end side of the transverse cutting edge 8, that is, from the center side of the chip 20. A total of four pieces are formed two by two along the blade 8. Each of the second chip breakers 24 is formed in a protruding shape that projects substantially conically from the rake face 3. The height h 2 of the second Chitsupubureka 24 may suitably determined depending on the material and cutting conditions for the first Chitsupubureka 21 similarly to the work material and the like. Further, the number of the second chip breakers 24 does not necessarily need to be two for each transverse cutting edge 8, and may be appropriately increased or decreased according to the length of the transverse cutting edge 8 or the like.
以上のように構成されたチツプ20にあっては、第４図
ないし第６図に示すように、工具ホルダ11の図示せぬチ
ツプ取付座に載置され、その上面２の中央部がクランプ
機構12で押さえ付けられることにより、前切刃７が工具
前方に突出した状態で工具ホルダ11に着脱自在に装着さ
れる。そして、工具ホルダ11の送り動作に伴って前切刃
７あるいは横切刃８が被削材Ｗに切り込まれ、これによ
り被削材Ｗに所定の溝部13が形成される。The tip 20 constructed as described above is placed on a tip mounting seat (not shown) of the tool holder 11, as shown in FIGS. By being pressed by 12, the front cutting blade 7 is detachably mounted on the tool holder 11 in a state where the front cutting blade 7 projects forward of the tool. Then, with the feeding operation of the tool holder 11, the front cutting edge 7 or the horizontal cutting edge 8 is cut into the work material W, whereby a predetermined groove 13 is formed in the work material W.
しかして、以上の溝加工において、第４図に示す溝入
れ加工時に前切刃７で生成される切屑14は、第１のチツ
プブレーカ21の第１の起立壁22に衝突し、該第１の起立
壁22に沿ってカールしつつ分断される。In the above-described grooving, the chips 14 generated by the front cutting edge 7 at the time of the grooving shown in FIG. Is divided while curling along the upright wall 22.
また、第５図に示す溝拡大加工時においては、横切刃
８で生成される切屑14が第１のチツプブレーカ21の第２
の起立壁23に衝突して分断される。この際、チツプ20の
被削材径方向における切り込み深さによっては、横切刃
８で生成される切屑14が上記第２のチツプブレーカ24と
干渉する場合がある。ところが、第２のチツプブレーカ
24が第１のチツプブレーカ21に比して著しく小さく、ま
た横切刃８で生成される切屑14が比較的厚いために、第
２のチツプブレーカ24で切屑14を拘束できず、従って、
切屑14は第２のチツプブレーカ24を乗り越えて第１のチ
ツプブレーカ21まで達し分断される。このため、第２の
チツプブレーカ24の近傍に切屑詰まり等が生じることは
ない。Further, at the time of the groove enlarging processing shown in FIG. 5, the chips 14 generated by the transverse cutting edge 8 are removed by the second chip breaker 21.
And divides by colliding with the upright wall 23. At this time, depending on the cutting depth of the chip 20 in the radial direction of the workpiece, the chips 14 generated by the transverse cutting edge 8 may interfere with the second chip breaker 24. However, the second chip breaker
Since the chip 24 is significantly smaller than the first chip breaker 21 and the chips 14 generated by the transverse cutting edge 8 are relatively thick, the chips 14 cannot be restrained by the second chip breaker 24, and
The chips 14 pass over the second chip breaker 24 and reach the first chip breaker 21 where they are separated. Therefore, chip clogging or the like does not occur near the second chip breaker 24.
そして、第６図に示す溝部13の引き上げ加工の際に
は、横切刃８から比較的薄く脆性が小さい切屑15が生成
されて横切刃８と斜めに交差する方向へ成長しようとす
るが、これら切屑15は横切刃８の近傍に設けられた第２
のチツプブレーカ24に拘束され、その成長が阻害され
る。このため、引き上げ加工時においても切屑15が細か
く分断され、横切刃８に噛み込まれることなく円滑に排
出される。When the groove 13 shown in FIG. 6 is lifted, chips 15 that are relatively thin and less brittle are generated from the transverse cutting edge 8 and tend to grow in a direction obliquely intersecting the transverse cutting edge 8. , These chips 15 are provided on the second side provided near the horizontal cutting blade 8.
Is restricted by the chip breaker 24, and its growth is inhibited. Therefore, the chips 15 are finely divided even during the lifting process, and are smoothly discharged without being bitten by the horizontal cutting blades 8.
なお、以上の実施例においては、特にチツプ20の両端
部に前切刃７及び横切刃８を設けているが、本考案はこ
れに限るものではなく、一端側にのみ切刃７、８が設け
られたものであっても同様の効果を奏し得る。In the above embodiment, the front cutting edge 7 and the horizontal cutting edge 8 are provided at both ends of the chip 20, but the present invention is not limited to this, and the cutting edges 7, 8 are provided only at one end. The same effect can be obtained even if the device is provided with.
［考案の効果］ 以上説明したように、この考案によれば、すくい面上
に、前切刃に面する第１の起立壁と横切刃に面する第２
の起立壁とを有する第１のチツプブレーカを形成し、こ
の第１のチツプブレーカよりも横切刃に近くかつ横切刃
後端寄りの位置に、第１のチップブレーカよりも小さい
突起状の第２のチップブレーカを設けたため、前切刃に
よって被削材を径方向へ切削する溝入れ加工を行う場
合、横切刃によって被削材を軸線方向へ切削する溝拡大
加工を行う場合及び横切刃によって被削材に引き上げ加
工を行う場合のいずれの場合でも、前切刃あるいは横切
刃で生成される切屑を確実に分断して、切屑の噛み込み
による加工面損傷や切刃欠損を未然に防止できるという
優れた効果を奏する。[Effects of the Invention] As described above, according to the invention, the first standing wall facing the front cutting edge and the second standing wall facing the horizontal cutting edge are provided on the rake face.
A first chip breaker having a raised wall having a protruding shape smaller than the first chip breaker at a position closer to the transverse cutting edge than the first chip breaker and near the rear end of the transverse cutting edge. Since the second chip breaker is provided, when performing grooving processing for cutting the work material in the radial direction with the front cutting edge, when performing the groove enlarging processing for cutting the work material in the axial direction with the horizontal cutting blade, and when performing the horizontal cutting. In any case where the workpiece is lifted by the cutting edge, the chips generated by the front cutting edge or the horizontal cutting edge are surely divided to prevent damage to the machined surface and chipping defects due to chip entrapment. It has an excellent effect that it can be prevented before it happens.
第１図ないし第６図は本考案の一実施例を示す図で、第
１図はチツプの平面図、第２図はチツプの側面図、第３
図はチツプの正面図、第４図は溝入れ加工時の状態を示
す図、第５図は溝の拡大加工時の状態を示す図、第６図
は溝の引き上げ加工時の状態を示す図、 第７図ないし第12図は従来例を示す図で、第７図はチツ
プの平面図、第８図はチツプの側面図、第９図はチツプ
の正面図、第10図は溝入れ加工時の状態を示す図、第11
図は溝の拡大加工時の状態を示す図、第12図は溝の引き
上げ加工時の状態を示す図、 第13図ないし第15図は他の従来例を示す図で、第13図は
チツプの平面図、第14図はチツプの側面図、第15図はチ
ツプの正面図である。 ２……上面、３……すくい面、４……側面、５……横逃
げ面、６……端面（前逃げ面）、７……前切刃、８……
横切刃、９……下面（着座面）、11……工具ホルダ、20
……チツプ、21……第１のチツプブレーカ、22……第１
の起立壁、23……第２の起立壁、24……第２のチツプブ
レーカ。1 to 6 show an embodiment of the present invention. FIG. 1 is a plan view of a chip, FIG. 2 is a side view of the chip, and FIG.
FIG. 4 is a front view of the chip, FIG. 4 is a view showing a state at the time of grooving, FIG. 5 is a view showing a state at the time of enlarging the groove, and FIG. 7 to 12 show a conventional example, FIG. 7 is a plan view of the chip, FIG. 8 is a side view of the chip, FIG. 9 is a front view of the chip, and FIG. Diagram showing the state of the time, eleventh
FIG. 12 is a diagram showing a state when the groove is enlarged, FIG. 12 is a diagram showing a state when the groove is pulled up, FIGS. 13 to 15 are diagrams showing another conventional example, and FIG. 13 is a chip. 14 is a side view of the chip, and FIG. 15 is a front view of the chip. 2 ... top surface, 3 ... rake face, 4 ... side face, 5 ... side flank face, 6 ... end face (front flank face), 7 ... front cutting edge, 8 ...
Horizontal cutting edge, 9 ... Bottom surface (seating surface), 11 ... Tool holder, 20
...... Chip, 21 ... First chip breaker, 22 ... First
The upstanding wall, 23 ... The second upstanding wall, 24 ... The second chip breaker.
Claims (1)
のチップ取付座に密着する着座面とされるとともに、す
くい面とされる上面と前逃げ面とされる端面との稜線部
に前切刃が、横逃げ面とされる側面と上記上面との稜線
部に横切刃が形成されてなるスローアウェイチップにお
いて、 上記すくい面に、上記前切刃に面する第１の起立壁と上
記横切刃に面する第２の起立壁とを有する第１のチップ
ブレーカを形成し、この第１のチップブレーカの上記第
２の起立壁よりも上記横切刃に近くかつ横切刃後端寄り
の位置に、上記第１のチップブレーカよりも小さい突起
状の第２のチップブレーカを形成したことを特徴とする
スローアウェイチップ。1. A substantially rectangular parallelepiped shape, a lower surface of which is a seating surface which is in close contact with a chip mounting seat of a tool holder, and a ridge line between an upper surface which is a rake surface and an end surface which is a front flank is formed. In a throw-away chip in which a cutting edge is formed at a ridge line between a side surface which is a lateral flank and the upper surface, a first upright wall facing the front cutting edge is provided on the rake face. Forming a first chip breaker having a second upright wall facing the transverse cutting edge, the first chip breaker being closer to the transverse cutting edge than the second upstanding wall and after the transverse cutting edge; A throw-away chip, wherein a projecting second chip breaker smaller than the first chip breaker is formed at a position near an end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990027866U JP2565479Y2 (en) | 1990-03-19 | 1990-03-19 | Throw-away tips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990027866U JP2565479Y2 (en) | 1990-03-19 | 1990-03-19 | Throw-away tips |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03120305U JPH03120305U (en) | 1991-12-11 |
| JP2565479Y2 true JP2565479Y2 (en) | 1998-03-18 |
Family
ID=31530699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990027866U Expired - Fee Related JP2565479Y2 (en) | 1990-03-19 | 1990-03-19 | Throw-away tips |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2565479Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6059041B2 (en) * | 2013-02-28 | 2017-01-11 | 京セラ株式会社 | Cutting insert, cutting tool, and method of manufacturing a cut product using the same |
| US9314851B2 (en) * | 2013-05-21 | 2016-04-19 | Iscar, Ltd. | Cutting insert having a rearwardly offset cutting edge and cutting tool |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6253901U (en) * | 1985-09-25 | 1987-04-03 | ||
| IL84078A (en) * | 1987-10-02 | 1990-09-17 | Iscar Ltd | Cutting insert |
-
1990
- 1990-03-19 JP JP1990027866U patent/JP2565479Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03120305U (en) | 1991-12-11 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |