JPH09108937A - High speed cutting broaching tool - Google Patents
High speed cutting broaching toolInfo
- Publication number
- JPH09108937A JPH09108937A JP29778895A JP29778895A JPH09108937A JP H09108937 A JPH09108937 A JP H09108937A JP 29778895 A JP29778895 A JP 29778895A JP 29778895 A JP29778895 A JP 29778895A JP H09108937 A JPH09108937 A JP H09108937A
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- high speed
- tool
- cutting edge
- broaching tool
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本願発明は、加工物の内面加工ま
たは、外面加工において工作物を所定形状に切削加工す
るのに用いられ、特に切削速度１０ｍ／ｍｉｎ以上の高
速ブローチ加工に用いられるブローチ工具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for cutting a work into a predetermined shape in the inner surface processing or the outer surface processing of a workpiece, and particularly for a high speed broaching for a cutting speed of 10 m / min or more. Regarding tools.
【０００２】[0002]
【従来の技術】従来より、高速切削用のブローチ工具と
して専用のブローチ工具はなく、汎用的な、すなわち切
削速度５ｍ／ｍｉｎ前後で用いるブローチ工具の中で本
願用途に使用していた。特に、その中で高速切削に適用
できるブローチ工具としては、特開昭６３−２２２１６
号に開示されているようにＴｉＮ、ＴｉＣＮ等の硬質被
膜を各切刃の側面、または、側面とすくい面を除く表面
にコーティングを施した例がある。また、特開昭６０−
１４６６１８号に開示されているように、硬質材料製の
同一形状の多数のチップをブローチ本体に長手方向に設
けられた溝に配列し、該溝の底面から突出チップのねじ
孔にボルトをねじ込んで各チップを本体に固定したスロ
ーアウェイ式のブローチ工具がある。2. Description of the Related Art Conventionally, there is no dedicated broaching tool as a broaching tool for high-speed cutting, and it has been used for general purpose, that is, a broaching tool used at a cutting speed of about 5 m / min for this application. In particular, as a broaching tool applicable to high speed cutting among them, Japanese Patent Laid-Open No. 63-22216
There is an example in which a hard coating such as TiN or TiCN is coated on the side surface of each cutting edge, or on the surface excluding the side surface and the rake surface, as disclosed in No. Also, Japanese Patent Application Laid-Open
As disclosed in Japanese Patent No. 146618, a large number of chips made of a hard material and having the same shape are arranged in a groove provided in a longitudinal direction of a broach body, and a bolt is screwed into a screw hole of a protruding chip from a bottom surface of the groove. There is a throw-away type broach tool that fixes each tip to the main body.
【０００３】[0003]
【発明が解決しようとする問題点】しかしながら、これ
らブローチ工具は汎用途的なものであり、本願用途に示
す高速切削においてチッピングを発生し易く、かつアブ
レシブな摩耗により寿命が短くなっていた。また、高速
切削において、切り屑のカールの状態が正常ではなくな
り、チップポケットに収容できなくなり、工具寿命だけ
でなく、加工面においても悪影響を及ぼすといった問題
があった。However, these broaching tools are general purpose tools, and chipping is likely to occur in high speed cutting as shown in the application of the present application, and the tool life is shortened due to abrasive wear. Further, in high-speed cutting, there is a problem that the curl state of the chips becomes abnormal and the chips cannot be stored in the chip pocket, which adversely affects not only the tool life but also the machining surface.
【０００４】[0004]
【本発明の目的】本願発明は、上記の問題を解決するた
めになされたものであり、切削速度１０ｍ／ｍｉｎ以上
の高速ブローチ加工に用いるブローチ工具を提供しよう
とするものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a broaching tool used for high speed broaching at a cutting speed of 10 m / min or more.
【０００５】[0005]
【問題を解決するための手段】本願発明は、上記の目的
を達成するために、切削速度１０ｍ／ｍｉｎ以上の高速
切削用ブローチ工具において、仕上げ刃以外の切れ刃に
おける前刃との切削段差を０．０２〜０．０６ｍｍと
し、該切れ刃のすくい角を１８〜２２゜に設定し、刃底
の丸み半径を２．０〜２．５ｍｍにしたものである。更
に、少なくとも切れ刃部の工具材質に粉末高速度工具
鋼、または超微粒子超硬合金を用い、更にそれらに硬質
被膜を被覆したものである。In order to achieve the above object, the present invention provides a broaching tool for high speed cutting having a cutting speed of 10 m / min or more, in which a cutting step between a cutting edge other than a finishing blade and a leading edge is used. The cutting radius is 0.02 to 0.06 mm, the rake angle of the cutting edge is set to 18 to 22 °, and the rounded radius of the blade bottom is set to 2.0 to 2.5 mm. Further, powder high speed tool steel or ultrafine particle cemented carbide is used as the material of the tool of at least the cutting edge portion, and a hard coating is further coated on them.
【０００６】[0006]
【作用】仕上げ刃以外の切れ刃における前刃との切削段
差を０．０２〜０．０６ｍｍとし、該切れ刃のすくい角
を１８〜２２゜に設定し、刃底の丸みの半径を２．０〜
２．５ｍｍにしたことにより、切削速度１０ｍ／ｍｉｎ
以上の高速切削においても、切り屑処理が良好となり、
ブローチ工具の長寿命化、加工面の高精度化が図れた。
また、少なくとも切れ刃部の工具材質に粉末高速度工具
鋼、または超微粒子超硬合金を用いることにより、ブロ
ーチ工具の耐熱性および耐摩耗性が向上し、より高速化
および長寿命化が可能となった。さらに、硬質被膜をコ
ーティングすることにより、耐摩耗性および耐チッピン
グ性が向上し、さらなる長寿命化および高精度加工化が
可能となった。以下、詳細を実施例において述べる。The cutting step with respect to the cutting edge other than the finishing blade is 0.02 to 0.06 mm, the rake angle of the cutting edge is set to 18 to 22 °, and the radius of the roundness of the cutting edge is set to 2. 0 to
Cutting speed of 10m / min due to 2.5mm
Even in the above high-speed cutting, chip processing becomes good,
The life of the broach tool was extended and the precision of the machined surface was improved.
Also, by using powder high-speed tool steel or ultrafine particle cemented carbide as the tool material of at least the cutting edge portion, the heat resistance and wear resistance of the broach tool are improved, enabling higher speed and longer life. became. Furthermore, by coating with a hard coating, wear resistance and chipping resistance are improved, and it has become possible to further extend the service life and achieve high-precision machining. Details will be described below in Examples.
【０００７】[0007]
【実施例】本願発明の１実施例を図１に示す。サーフェ
ィスブローチ形状のものであり、工具材質に粉末高速度
工具鋼を使用し、ＴｉＮコーティングを施したものであ
る。ここで、切削段差を０．０２ｍｍ、すくい角を１８
゜、刃底の丸みを半径２．０ｍｍにそれぞれ設定してい
る。上記実施例のブローチ工具を本発明品１とし、切削
段差、すくい角、刃底の丸みをそれぞれ変化させ、本発
明品２および比較品１〜４を製作した。これらのブロー
チ工具により、被削材に硬さＨＲＣ３０のステンレス鋼
を切削速度１２ｍ／ｍｉｎの高速切削を行った結果を表
１に示す。FIG. 1 shows an embodiment of the present invention. It has a surface broach shape, and uses powder high speed tool steel as the tool material and is TiN coated. Here, the cutting step is 0.02 mm and the rake angle is 18
And the radius of the blade bottom is set to 2.0 mm. Inventive product 2 and comparative products 1 to 4 were manufactured by using the broaching tool of the above-described embodiment as the product 1 of the present invention and changing the cutting step, the rake angle, and the roundness of the blade bottom. Table 1 shows the results of high-speed cutting of the work material with stainless steel having a hardness of HRC30 at a cutting speed of 12 m / min using these broach tools.
【０００８】[0008]
【表１】 [Table 1]
【０００９】比較品１〜４は、切り屑のカール状態、切
り屑除去性、加工面面粗さ、工具刃先損耗状態のうち、
少なくても一項目は問題があったのに対し、本発明品
は、切り屑のカール状態、切り屑除去性、加工面面粗
さ、工具刃先損耗状態すべてにおいて、良好であった。Comparative products 1 to 4 are among the curled state of chips, chip removability, surface roughness of machined surface and worn state of tool edge,
Although at least one item had a problem, the product of the present invention was good in all of the curl state of chips, chip removability, machined surface roughness, and tool edge wear state.
【００１０】[0010]
【発明の効果】以上のように本発明によれば、切削速度
１０ｍ／ｍｉｎ以上の高速ブローチ加工が可能となっ
た。As described above, according to the present invention, high speed broaching with a cutting speed of 10 m / min or more is possible.
【図面の簡単な説明】[Brief description of the drawings]
【図１】 図１は、本発明品の１実施例であり、その側
面図を示す。FIG. 1 is a side view showing one embodiment of the product of the present invention.
１ 本体 ２ 切れ刃 ３ 刃底 ｔ 切削段差 θ すくい角 Ｒ 刃底の丸み 1 Main body 2 Cutting edge 3 Blade bottom t Cutting step θ Rake angle R Roundness of blade bottom
Claims (3)
切削段差を０．０２〜０．０６ｍｍとし、該切れ刃のす
くい角を１８〜２２゜に設定し、刃底の丸み半径を２．
０〜２．５ｍｍにしたことを特徴とする高速切削用ブロ
ーチ工具。1. A cutting step other than the finishing blade with the front blade is set to 0.02 to 0.06 mm, the rake angle of the cutting edge is set to 18 to 22 °, and the rounded radius of the cutting edge is set to 2 mm. ．
A broaching tool for high-speed cutting characterized by having a length of 0 to 2.5 mm.
において、少なくとも切れ刃部の工具材質に粉末高速度
工具鋼、または超微粒子超硬合金を用いたことを特徴と
する高速切削用ブローチ工具。2. A broaching tool for high speed cutting according to claim 1, characterized in that powder high speed tool steel or ultrafine grained cemented carbide is used as a material for at least the cutting edge portion. .
工具において、硬質被膜をコーティングしたことを特徴
とする高速切削用ブローチ工具。3. The broaching tool for high speed cutting according to claim 1, wherein a hard coating is coated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29778895A JP3794739B2 (en) | 1995-10-20 | 1995-10-20 | Stainless steel broaching tool for high speed cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29778895A JP3794739B2 (en) | 1995-10-20 | 1995-10-20 | Stainless steel broaching tool for high speed cutting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09108937A true JPH09108937A (en) | 1997-04-28 |
| JP3794739B2 JP3794739B2 (en) | 2006-07-12 |
Family
ID=17851185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29778895A Expired - Fee Related JP3794739B2 (en) | 1995-10-20 | 1995-10-20 | Stainless steel broaching tool for high speed cutting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3794739B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001157910A (en) * | 1999-12-02 | 2001-06-12 | Nachi Fujikoshi Corp | High-speed broaching method with high accuracy |
-
1995
- 1995-10-20 JP JP29778895A patent/JP3794739B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001157910A (en) * | 1999-12-02 | 2001-06-12 | Nachi Fujikoshi Corp | High-speed broaching method with high accuracy |
| JP4582729B2 (en) * | 1999-12-02 | 2010-11-17 | 株式会社不二越 | High-speed and high-precision broaching method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3794739B2 (en) | 2006-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103764326B (en) | Multiflute end mill | |
| US5322394A (en) | Highly stiff end mill | |
| JP5614511B2 (en) | Ball end mill and insert | |
| US20060045639A1 (en) | Multiple-axis cutting toroidal end mill | |
| JP5088678B2 (en) | Long neck radius end mill | |
| US11103929B2 (en) | Turning insert | |
| JP2005111651A (en) | Tip, milling cutter, and machining method using the same | |
| US4214846A (en) | Heavy duty insert | |
| CN113695652B (en) | Indexable cutting insert and indexable cutting tool thereof | |
| JPH07299634A (en) | End mill | |
| KR0148220B1 (en) | Electrodeposition reamer tool | |
| JP6179165B2 (en) | Radius end mill | |
| JP2017132025A (en) | Cutting tool | |
| JPH09108937A (en) | High speed cutting broaching tool | |
| US11059110B2 (en) | Mirror finishing method and mirror finishing tool | |
| JP6212863B2 (en) | Radius end mill | |
| JPH06335816A (en) | Minimum diameter end mill | |
| JP2013013962A (en) | Cbn end mill | |
| CN108136521B (en) | Cutting insert and cutting tool | |
| CN114472944B (en) | Finishing insert for reducing tool wear | |
| JP4448386B2 (en) | Small-diameter ball end mill | |
| JP2003285218A (en) | High-efficiency machining end mill | |
| JP2001293609A (en) | Finishing ball end mill | |
| JPH0790410B2 (en) | Cutting tool with small relief | |
| JP2005028561A (en) | High-speed cutting tool for finishing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20050831 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20050916 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060313 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060317 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Effective date: 20060407 Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20060411 |
|
| R150 | Certificate of patent (=grant) or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 4 Free format text: PAYMENT UNTIL: 20100421 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100421 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100421 Year of fee payment: 4 |
|
| R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
| R370 | Written measure of declining of transfer procedure |
Free format text: JAPANESE INTERMEDIATE CODE: R370 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 4 Free format text: PAYMENT UNTIL: 20100421 |
|
| LAPS | Cancellation because of no payment of annual fees |