JPH0386403A - Surface coated throw away tip - Google Patents
Surface coated throw away tipInfo
- Publication number
- JPH0386403A JPH0386403A JP22242889A JP22242889A JPH0386403A JP H0386403 A JPH0386403 A JP H0386403A JP 22242889 A JP22242889 A JP 22242889A JP 22242889 A JP22242889 A JP 22242889A JP H0386403 A JPH0386403 A JP H0386403A
- Authority
- JP
- Japan
- Prior art keywords
- chamfering
- rake face
- amount
- face
- cutting edge
- 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
Links
- 238000005520 cutting process Methods 0.000 claims abstract description 44
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- 239000002356 single layer Substances 0.000 claims abstract description 3
- 238000005229 chemical vapour deposition Methods 0.000 claims description 10
- 239000011195 cermet Substances 0.000 claims description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 238000005234 chemical deposition Methods 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 101100008046 Caenorhabditis elegans cut-2 gene Proteins 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、炭素鋼、合金鋼、鋳物等の加工に優れる表面
被覆スローアウェイチップに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a surface-coated indexable insert that is excellent in machining carbon steel, alloy steel, cast metals, and the like.
現在、炭素鋼、合金鋼、鋳物等の旋削加工には、ＷＣ基
超硬合金又はサーメツト製のスローアウェイチップが使
用されている。ＷＣ基超硬合金又は、サーメットは、脆
性材料であるためスローアウェイチップの切刃に面取り
を施し切刃にチッピング。Currently, indexable inserts made of WC-based cemented carbide or cermet are used for turning carbon steel, alloy steel, castings, etc. Since WC-based cemented carbide or cermet is a brittle material, the cutting edge of the indexable insert is chamfered and chipped.
欠は等を防止するためにすくい面方向の面取り巾は、０
．０５＋ｍｍ以上少なくとも０．０３ｍ＋＋＋必要であ
る。To prevent chipping, etc., the chamfer width in the direction of the rake face is set to 0.
．． 05+mm or more and at least 0.03m+++ are required.
切削寿命を向上させる目的で化学蒸着法（以下ＣＶＤ法
という）ＴｉＣ，ＴｉＮ、ＡＱ、○１等を表面被覆した
スローアウェイチップが市販されているが、ＣＶＤ法で
は、切刃部に脱炭層が生じ。Indexable inserts whose surfaces are coated with chemical vapor deposition (hereinafter referred to as CVD) TiC, TiN, AQ, ○1, etc. are available for the purpose of improving cutting life. However, with the CVD method, a decarburized layer is formed on the cutting edge. Arise.
加工時のチッピング欠けを防止するため、表面被覆しな
いスローアウェイチップよりも刃部面取量を大きくする
必要がある。To prevent chipping and chipping during machining, the amount of chamfer on the cutting edge must be larger than that of indexable inserts with no surface coating.
しかしながら、大きくすることより、切削抵抗が増加し
切れ味が悪くなりどうしても、ｗＲ続切削、高速切削に
は適しない。However, increasing the size increases cutting resistance and deteriorates sharpness, making it unsuitable for continuous wR cutting and high-speed cutting.
従来のＣＶＤ法で、スローアウェイチップの切刃部の脱
炭層を低減させる方法として、ＷＣ基超硬合金又サーメ
ット余分な遊離カーボンを残存させること、又ＣＶＤの
ガスカーボンポテンシャルを上げることが考えられる。Possible ways to reduce the decarburized layer on the cutting edge of indexable inserts in conventional CVD methods include leaving excess free carbon in WC-based cemented carbide or cermet, and increasing the gas carbon potential of CVD. .
前者は、耐塑性変形性が弱くなり、切削中型性変形によ
り刃部がダレる傾向にある。In the former case, the plastic deformation resistance becomes weak, and the blade tends to sag due to deformation during cutting.
後者は、ＣＶＤ炉内の膜厚均一性が劣り、どうしても表
面被覆時炉中セツティング領域が限定され、生産性が著
しく悪くなる。ＷＣ基超硬合金又はサーメットにおいて
、切削領域、用途の拡大にはその切刃部の面取量を表面
被覆しない面取量と同じにし、切削寿命向上させる必要
がある。In the latter case, the uniformity of the film thickness within the CVD furnace is poor, and the setting area in the furnace during surface coating is inevitably limited, resulting in a significant decrease in productivity. In order to expand the cutting range and applications of WC-based cemented carbide or cermet, it is necessary to make the amount of chamfering on the cutting edge the same as the amount of chamfering without surface coating to improve the cutting life.
以上の点より本発明は、表面被覆しないＷＣ基超硬合金
又はサーメットの面取量及び断面形状に着目し５表面被
覆しても切削性の安定化を計り、切削寿命（特に耐摩耗
性）を向上させたものである。From the above points, the present invention focuses on the chamfer amount and cross-sectional shape of WC-based cemented carbide or cermet that is not surface coated, and aims to stabilize machinability even if the surface is coated, and improve cutting life (especially wear resistance). It is an improved version.
従って本発明は、ＷＣ基超硬合金又はサーメットの切刃
を有するスローアウェイチップにおいて、すくい面と逃
げ面の交差する切刃部分を曲面状に面取りして、すくい
面方向の面取量を逃げ面方向の面取量の１〜４倍にして
、すくい面方向の面取中が０．０３〜０．１開であるス
ローアウェイチップの表面に有機ＣＮ化合物を用いた化
学蒸着法で生成したＴｉＣＮ及び／又はＴｉＮ、Ａｌ２
Ｏ．を０．５〜２０μｍ１層又は、多層被覆したことを
特徴とする表面被覆スローアウェイチップである。Therefore, in an indexable insert having a cutting edge made of WC-based cemented carbide or cermet, the cutting edge portion where the rake face and flank face intersect is chamfered into a curved shape to reduce the amount of chamfering in the direction of the rake face. The amount of chamfering in the face direction is 1 to 4 times the chamfering amount in the face direction, and the chamfering amount in the rake face direction is 0.03 to 0.1.It is produced by chemical vapor deposition using an organic CN compound on the surface of the indexable chip. TiCN and/or TiN, Al2
O. This is a surface-coated indexable chip characterized by being coated with a single layer or multiple layers of 0.5 to 20 μm.
以下に数値限定した理由を実施例にもとすき説明する。The reason for the numerical limitations will be explained below using examples.
（実施例上）面取量
第工図にスローアウェイチップの切刃に直角な断面図を
示す。第２，３図にすくい面方向の面取量と逃げ面方向
の面取量を変化させた切削時の摩耗量の傾向及びチッピ
ングの状況を示す。(Example 1) Chamfer amount The sectional view perpendicular to the cutting edge of the indexable insert is shown in the construction drawing. Figures 2 and 3 show trends in the amount of wear and chipping during cutting when the amount of chamfering in the direction of the rake face and the amount of chamfering in the flank direction were changed.
面取りはダイヤモンドまたは炭化珪素等の硬質物質を介
在したブラシを用い、スローアウェイチップの刃部を面
取りする。ブラシの中心で刃部の位置を変えることによ
り面取量をコントロールすることが可能である。For chamfering, use a brush interposed with a hard material such as diamond or silicon carbide to chamfer the cutting edge of the indexable tip. It is possible to control the amount of chamfering by changing the position of the blade at the center of the brush.
第２図は被削材として５０Ｍ４４０ （Ｈ８３７〜４０
）を以下の切削緒言で実施した結果である。Figure 2 shows 50M440 (H837~40
) was carried out with the following cutting introduction.
切削速度 １８０＋＋＋／ｗｉｎ
送り ０．３ｍｍ／ｒｅｖ
切り込み ２旧
チップ ＣＮＭＧ１２０４０８ （ブレーカ−有
）膜厚 ＴｉＣＮ ５層ｍ−ＴｉＮ１ｊ＋ｍ第３
図は被削材として５０Ｍ４４０ （Ｈ８３７〜４０）４
つ溝入りを使用し、以下の切削緒言で実施した結果であ
る。Cutting speed 180+++/win Feed 0.3mm/rev Depth of cut 2 old tip CNMG120408 (with breaker) Film thickness TiCN 5 layers m-TiN1j+m 3rd
The figure shows 50M440 (H837-40) 4 as the work material.
This is the result of using a two-groove tool with the following cutting instructions.
切削速度 １５０＋ａ／ｗｉｎ
送り ０．５ｍｍ／ｒｅｖ
切り込み ２．Ｏａｖ＋
チップ ＣＮＭＧＩ２０４０ｇ （ブレーカ−有
）膜厚 ＴｉＣＮ ５）ｍ−ＴｉＮＩＪｍ第２図
、第３図より、すくい面方向の面取量を逃げ面方向の面
取量の１層２倍に行なったときには、切削時に逃げ面が
異常に摩耗し、又切削抵抗が大きくなり切削に供しえな
い。又４倍では、切削時、切刃部にチッピングが生じ、
切刃部が均一に摩耗しないで、局部的に摩耗する現象が
みられる。よってすくい面方向の面取量を逃げ面方向の
１〜３倍に限定した。さらに、すくい面方向の面取中は
、０．０４〜０．１ｍｍにすれば、切削性能がより安定
する。Cutting speed 150+a/win Feed 0.5mm/rev Depth of cut 2. Oav+ Chip CNMGI2040g (With breaker) Film thickness TiCN 5) m-TiNIJmFrom Figures 2 and 3, when the amount of chamfering in the direction of the rake face is made twice the amount of chamfering in the direction of the flank face, The flank surface wears abnormally during cutting, and the cutting resistance becomes too large to be used for cutting. Also, at 4x, chipping occurs on the cutting edge during cutting,
There is a phenomenon in which the cutting edge does not wear uniformly and wears locally. Therefore, the amount of chamfering in the direction of the rake face was limited to 1 to 3 times the amount of chamfering in the direction of the flank face. Furthermore, during chamfering in the direction of the rake face, if the chamfer is set to 0.04 to 0.1 mm, the cutting performance will be more stable.
（実施例２）膜厚
第１表に（実施例１）で説明した様々な面取量を有する
スローアウェイチップに、有機ＣＮ化合物を用いた化学
蒸着法で生成したＴｉＣＮ及び、通常の化学蒸着法で被
覆したＴｉＮ及びＡｌ１，０．を１層又は多層被覆し、
そのスローアウェイチップについて、膜厚、第３図と同
様な切削諸元で切削した場合の結果を示す。(Example 2) TiCN produced by chemical vapor deposition using an organic CN compound and TiCN produced by chemical vapor deposition using an organic CN compound and ordinary chemical vapor deposition TiN and Al1,0. coated with one layer or multiple layers,
The results of cutting the indexable tip with the same film thickness and cutting specifications as in FIG. 3 are shown.
第３図より本発明は、従来のＣＶＤ法による製品９に比
べ１５倍程度耐衝撃性が勝れる。またそのため、面取量
をその用途に応じて変えることが可能となった。As can be seen from FIG. 3, the impact resistance of the present invention is about 15 times higher than that of product 9 produced by the conventional CVD method. Additionally, it has become possible to change the amount of chamfering depending on the application.
また、膜厚０．５μω以下では被覆した効果が余り得ら
れず、２０μｍ以上では被覆がハクリするため０．５〜
２０＃Ｉ１１に限定した。In addition, if the film thickness is less than 0.5μω, the coating effect will not be obtained much, and if it is more than 20μω, the coating will peel off, so 0.5~
It was limited to 20#I11.
ＷＣ基超硬合金又は、サーメットの切刃を有するスロー
アウェイチップにおいて、すくい面と逃げ面の交差する
切刃部分を曲面状に面取りして。In an indexable insert having a cutting edge made of WC-based cemented carbide or cermet, the cutting edge portion where the rake face and flank face intersect is chamfered into a curved shape.
すくい面方向の面取量を逃げ面方向の面取量の１〜３倍
にして、すくい面方向の面取量が ０．０４〜０．１ｍ
ｍであるスローアウェイチップの表面に有機ＣＮ化合物
を用いた化学蒸着法で生成したＴｉＣＮ及び／又はＴｉ
Ｎ、Ａｌ１．０１を０．５〜２０ｐｍ１層又は多層被覆
することにより、切削加工時の切刃の耐摩耗性、耐欠損
性を大巾に向上し切削工具として好適なものである。The amount of chamfering in the direction of the rake face is 1 to 3 times the amount of chamfering in the direction of the flank face, and the amount of chamfering in the direction of the rake face is 0.04 to 0.1m.
TiCN and/or Ti produced by chemical vapor deposition using an organic CN compound on the surface of the indexable chip
By coating N and Al1.01 in one layer or multiple layers with a thickness of 0.5 to 20 pm, the wear resistance and chipping resistance of the cutting edge during cutting are greatly improved, making it suitable as a cutting tool.
第１図にスローアウェイチップの切刃に直角な断面図を
、第２図にすくい面方向の面取量と逃げ面方向の面取量
を変化させた切削時の摩耗量の傾向を示し、第３図にす
くい面方向の面取量と逃げ面方向の面取量を変化させた
切削時のチッピングの状況を示す。Fig. 1 shows a cross-sectional view perpendicular to the cutting edge of the indexable insert, and Fig. 2 shows the tendency of the amount of wear during cutting when the amount of chamfering in the direction of the rake face and the amount of chamfering in the flank direction were changed. FIG. 3 shows the state of chipping during cutting when the amount of chamfering in the direction of the rake face and the amount of chamfering in the flank direction were varied.
Claims (1)
アウェイチップにおいて、すくい面と逃げ面の交差する
切刃部分を曲面状に面取りして、すくい面方向の面取量
を逃げ面方向の面取量の１〜３倍にして、すくい面方向
の面取量が０．０４〜０．１ｍｍであるスローアウェイ
チップの表面に有機ＣＮ化合物を用いた化学蒸着法で生
成したＴｉＣＮ及び又はＴｉＮ、Ａｌ＿２Ｏ＿３を０．
５〜２０μｍ１層又は多層被覆したことを特徴とする表
面被覆スローアウェイチップ。In indexable inserts with cutting edges made of WC-based cemented carbide or cermet, the cutting edge portion where the rake face and flank face intersect is chamfered into a curved shape, and the amount of chamfering in the rake face direction is equal to the face in the flank direction. TiCN and/or TiN produced by a chemical vapor deposition method using an organic CN compound on the surface of an indexable tip with a chamfer amount of 0.04 to 0.1 mm in the rake face direction, which is 1 to 3 times the amount taken off, Al_2O_3 to 0.
A surface-coated throw-away chip characterized by being coated with a single layer or multiple layers of 5 to 20 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22242889A JPH0386403A (en) | 1989-08-29 | 1989-08-29 | Surface coated throw away tip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22242889A JPH0386403A (en) | 1989-08-29 | 1989-08-29 | Surface coated throw away tip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0386403A true JPH0386403A (en) | 1991-04-11 |
Family
ID=16782242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22242889A Pending JPH0386403A (en) | 1989-08-29 | 1989-08-29 | Surface coated throw away tip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0386403A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004255507A (en) * | 2003-02-25 | 2004-09-16 | Kyocera Corp | Cutting tool with sensor, and manufacturing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59219122A (en) * | 1983-05-27 | 1984-12-10 | Sumitomo Electric Ind Ltd | Covered sintered hard alloy tool and manufacturing method thereof |
| JPS63103072A (en) * | 1986-10-17 | 1988-05-07 | Hitachi Tool Eng Ltd | Surface coated sintered hard alloy |
| JPS63156623A (en) * | 1986-12-16 | 1988-06-29 | Hitachi Tool Eng Ltd | Coated cemented carbide tool |
| JPS6438601A (en) * | 1987-08-03 | 1989-02-08 | Mitsubishi Cable Ind Ltd | Automatic detecting and measuring apparatus for third rail |
| JPH01104773A (en) * | 1987-10-14 | 1989-04-21 | Sumitomo Electric Ind Ltd | Coated cutting tool |
-
1989
- 1989-08-29 JP JP22242889A patent/JPH0386403A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59219122A (en) * | 1983-05-27 | 1984-12-10 | Sumitomo Electric Ind Ltd | Covered sintered hard alloy tool and manufacturing method thereof |
| JPS63103072A (en) * | 1986-10-17 | 1988-05-07 | Hitachi Tool Eng Ltd | Surface coated sintered hard alloy |
| JPS63156623A (en) * | 1986-12-16 | 1988-06-29 | Hitachi Tool Eng Ltd | Coated cemented carbide tool |
| JPS6438601A (en) * | 1987-08-03 | 1989-02-08 | Mitsubishi Cable Ind Ltd | Automatic detecting and measuring apparatus for third rail |
| JPH01104773A (en) * | 1987-10-14 | 1989-04-21 | Sumitomo Electric Ind Ltd | Coated cutting tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004255507A (en) * | 2003-02-25 | 2004-09-16 | Kyocera Corp | Cutting tool with sensor, and manufacturing method thereof |
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