JPH0679542A - Manufacture of cutting tool nade by compositely covering hard layer and metallic layer - Google Patents
Manufacture of cutting tool nade by compositely covering hard layer and metallic layerInfo
- Publication number
- JPH0679542A JPH0679542A JP25215392A JP25215392A JPH0679542A JP H0679542 A JPH0679542 A JP H0679542A JP 25215392 A JP25215392 A JP 25215392A JP 25215392 A JP25215392 A JP 25215392A JP H0679542 A JPH0679542 A JP H0679542A
- Authority
- JP
- Japan
- Prior art keywords
- cutting tool
- hard layer
- layer
- coated cutting
- metal
- 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
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、硬質層および金属層
を複合被覆してなる切削工具の製造方法に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a cutting tool having a hard layer and a metal layer coated together.
【０００２】[0002]
【従来の技術】従来、ＷＣ基超硬合金を基体とし、その
表面にＴｉＣ、ＴｉＮ、ＴｉＣＮを被覆し、その上にＡ
ｌ2 Ｏ3 を被覆し、さらにその上にＴｉ、Ｚｒ、Ｈｆ、
Ｖ、Ｎｂ、Ｔａ、Ｃｒ、Ｍｏ、Ｗ、Ｆｅ、Ｃｏ、Ｎｉか
らなる群のうちのいずれかからなる１種の金属または前
記金属の２種以上からなる合金を化学蒸着法（以下、Ｃ
ＶＤ法という）、物理蒸着法（以下、ＰＶＤ法とい
う）、無電解メッキ法などにより被覆し、硬質層および
金属層を複合被覆してなる切削工具を製造する方法は、
例えば、特開昭５２−１００３０９号公報にも記載され
ており知られている。2. Description of the Related Art Conventionally, a WC-based cemented carbide is used as a substrate, the surface of which is coated with TiC, TiN, and TiCN, and then A
l 2 O 3 and then Ti, Zr, Hf,
One metal selected from the group consisting of V, Nb, Ta, Cr, Mo, W, Fe, Co, and Ni or an alloy composed of two or more of the above metals is chemically vapor deposited (hereinafter, referred to as C).
VD method), physical vapor deposition method (hereinafter referred to as PVD method), electroless plating method and the like, the method of manufacturing a cutting tool formed by composite coating hard layer and metal layer,
For example, it is described in JP-A No. 52-100309 and is known.
【０００３】[0003]
【発明が解決しようとする課題】しかし、（ａ） 前記
金属または合金をＣＶＤ法で被覆した場合、下地の硬質
被覆層中の非金属成分が拡散し、低級炭化物を作りやす
く、かかる低級炭化物が生成した硬質被覆層は、耐摩耗
性が低下する、（ｂ） 前記金属または合金をＰＶＤ法
で被覆した場合、高真空中で被覆が行われるので、被覆
後、被覆層が酸化を起こして脆化し、断続切削を行った
場合に耐欠損性が低下する、（ｃ） 前記金属または合
金を無電解メッキ法で被覆した場合、下地の硬質被覆層
に対する密着性が不十分であるので耐欠損性の十分な向
上が見られない、などの課題があった。However, (a) when the above metal or alloy is coated by the CVD method, the non-metal component in the underlying hard coating layer diffuses to easily form a lower carbide. The generated hard coating layer has a reduced wear resistance. (B) When the metal or alloy is coated by the PVD method, the coating is performed in a high vacuum. Therefore, after coating, the coating layer is oxidized and brittle. And the fracture resistance is reduced when intermittent cutting is performed. There was a problem such as not being able to improve sufficiently.
【０００４】[0004]
【課題を解決するための手段】そこで、本発明者らは、
厳しい断続切削を行っても欠損を起こしにくく、強度お
よび耐摩耗性に優れた硬質層被覆切削工具を開発すべく
研究を行った結果、ＷＣ基超硬合金またはＴｉＣＮ基サ
ーメット基体の表面に、ＣＶＤ法またはＰＶＤ法により
ＴｉＣ、ＴｉＮ、ＴｉＣＮ、ＴｉＣＯ、ＴｉＣＮＯ、Ａ
ｌ2 Ｏ3 の内の１種または２種以上からなる硬質層（以
下、硬質層という）を被覆して得られた硬質層被覆切削
工具に、Ｃｏ、Ｎｉ、Ｆｅの内の１種の金属または前記
金属の２種以上からなる合金の金属球（以下、金属球と
いう）をショットブラストすると、硬質層被覆切削工具
の表面にＣｏ、Ｎｉ、Ｆｅの内の１種の金属または前記
金属の２種以上からなる合金の被覆層が形成され、前記
従来法のＣＶＤ法、ＰＶＤ法、無電解メッキ法などによ
り金属または合金を硬質層被覆切削工具の表面に被覆す
るよりも強度および耐摩耗性が向上するという知見を得
たのである。Therefore, the present inventors have
As a result of research to develop a hard layer-coated cutting tool that is resistant to chipping even when severely interrupted cutting, and has excellent strength and wear resistance, the results show that CVD is applied to the surface of WC-based cemented carbide or TiCN-based cermet substrates. Method, PVD method or TiC, TiN, TiCN, TiCO, TiCNO, A
A hard layer-coated cutting tool obtained by coating a hard layer made of one or more of l 2 O 3 (hereinafter referred to as hard layer), and a metal of one of Co, Ni, and Fe. Alternatively, when a metal sphere of an alloy composed of two or more of the above metals (hereinafter referred to as a metal sphere) is shot blasted, one of Co, Ni, and Fe or two of the above metals is formed on the surface of the hard layer-coated cutting tool. A coating layer of an alloy composed of at least one kind is formed, and the strength and wear resistance are higher than those of coating the surface of a hard layer-coated cutting tool with a metal or an alloy by the conventional CVD method, PVD method, electroless plating method or the like. We have obtained the knowledge that it will improve.
【０００５】この発明は、かかる知見に基づいて成され
たものであって、（１） ＷＣ基超硬合金を基体とし、
その表面に硬質層を被覆してなる硬質層被覆切削工具
に、Ｃｏ、Ｎｉ、Ｆｅの内の１種の金属または前記金属
の２種以上からなる合金の金属球をショットブラストす
る硬質層および金属層を複合被覆してなる切削工具の製
造方法、および、（２） ＴｉＣＮ基サーメットを基体
とし、その表面に硬質層を被覆してなる硬質層被覆切削
工具に、Ｃｏ、Ｎｉ、Ｆｅの内の１種の金属または前記
金属の２種以上からなる合金の金属球をショットブラス
トする硬質層および金属層を複合被覆してなる切削工具
の製造方法、に特徴を有するものである。The present invention was made on the basis of such findings, and (1) uses a WC-based cemented carbide as a base,
A hard layer and a metal for shot blasting a metal ball of a metal selected from Co, Ni, and Fe or an alloy composed of two or more of the above metals to a hard layer-coated cutting tool whose surface is coated with a hard layer. A method for producing a cutting tool having a composite coating of layers, and (2) a hard layer-coated cutting tool having a TiCN-based cermet as a substrate and a hard layer coated on the surface of CoCN. The present invention is characterized by a method for producing a cutting tool, which comprises composite coating a hard layer and a metal layer, which are shot-blasted with metal spheres of one kind of metal or an alloy of two or more kinds of the metals.
【０００６】[0006]
【実施例】つぎに、この発明の被覆切削工具の製造方法
を実施例に基づいて具体的に説明する。EXAMPLES Next, a method of manufacturing a coated cutting tool according to the present invention will be specifically described based on examples.
【０００７】実施例１ ＩＳＯ規格ＳＮＭＧ１２０４０８の形状を有し、表１に
示される配合組成の圧粉体を焼結して得られた通常のＷ
Ｃ基超硬合金（以下、超硬合金という）Ａ〜Ｃを用意し
た。Example 1 A normal W obtained by sintering a green compact having the shape of ISO standard SNMG120408 and having the composition shown in Table 1 was used.
C-based cemented carbide (hereinafter referred to as cemented carbide) A to C were prepared.
【０００８】[0008]
【表１】 [Table 1]
【０００９】表１に示される超硬合金Ａ〜Ｃを基体と
し、その表面に通常のＣＶＤ法により、表２に示される
硬質層を形成し、被覆切削工具ａ〜ｆを作製した。Cemented carbides A to C shown in Table 1 were used as substrates, and hard layers shown in Table 2 were formed on the surface of the substrates by ordinary CVD method to produce coated cutting tools a to f.
【００１０】[0010]
【表２】 [Table 2]
【００１１】この被覆切削工具ａ〜ｆに、直径：０．３
ｍｍの各種金属球を投射速度：６０ｍ／分で６０秒投射
のショットブラストを施すことにより表３に示される成
分組成の各種金属層を形成し、本発明製造法１〜６によ
る複合被覆切削工具を作製した。The coated cutting tools a to f had a diameter of 0.3.
Various metal layers having the component compositions shown in Table 3 are formed by subjecting various metal spheres of mm to a shot speed of 60 seconds at a projection speed of 60 m / min, and the composite coated cutting tool according to the manufacturing methods 1 to 6 of the present invention. Was produced.
【００１２】従来例１ 実施例１で作製した被覆切削工具ａ〜ｆに通常の無電解
メッキ法により表３〜表４に示される成分の各種金属層
を形成し、従来製造法１〜６による複合被覆切削工具を
作製した。Conventional Example 1 Various metal layers having the components shown in Tables 3 to 4 were formed on the coated cutting tools a to f prepared in Example 1 by a normal electroless plating method, and the conventional manufacturing methods 1 to 6 were used. A composite coated cutting tool was made.
【００１３】従来例２ 実施例１で作製した被覆切削工具ａ〜ｆに通常のＰＶＤ
法により表４に示される成分の各種金属層を形成し、従
来製造法７〜１２による複合被覆切削工具を作製した。Conventional Example 2 The coated cutting tools a to f prepared in Example 1 were made of ordinary PVD.
Various metal layers having the components shown in Table 4 were formed by the method, and composite coated cutting tools according to the conventional manufacturing methods 7 to 12 were produced.
【００１４】前記本発明製造法１〜６により得られた複
合被覆切削工具、従来製造法１〜６により得られた複合
被覆切削工具および従来製造法７〜１２により得られた
複合被覆切削工具を用い、 被削材：ＳＣＭ４４０（硬さＨB ２４０）丸棒 切削速度：２００ｍ／ｍｉｎ、 送り：０．３ｍｍ／ｒｅｖ．、 切込み：１．０ｍｍ、 切削時間：３０ｍｉｎ． 切削油：なし の条件で連続切削試験を行い、複合被覆切削工具の逃げ
面摩耗幅を測定し、耐摩耗性を評価した。The composite coated cutting tools obtained by the above-mentioned production methods 1 to 6 of the present invention, the composite coated cutting tools obtained by the conventional production methods 1 to 6 and the composite coated cutting tools obtained by the conventional production methods 7 to 12 are prepared. Work material: SCM440 (hardness HB 240) round bar Cutting speed: 200 m / min, feed: 0.3 mm / rev. , Depth of cut: 1.0 mm, cutting time: 30 min. A continuous cutting test was performed under the condition of no cutting oil: the flank wear width of the composite coated cutting tool was measured to evaluate the wear resistance.
【００１５】さらに、 被削材：ＳＮＣＭ４３９（硬さＨB ２４０）角材 切削速度：１００ｍ／ｍｉｎ、 送り：０．３ｍｍ／ｒｅｖ．、 切込み：１．５ｍｍ、 切削油：なし の条件で断続切削試験を行い、複合被覆切削工具の切刃
が欠損するまでの切削時間を測定し、耐欠損性を評価し
た。これらの測定結果を表３および表４に示す。Work material: SNCM439 (hardness HB 240) square material Cutting speed: 100 m / min, Feed: 0.3 mm / rev. An intermittent cutting test was performed under the following conditions: depth of cut: 1.5 mm, cutting oil: none, and the cutting time until the cutting edge of the composite coated cutting tool was broken was measured to evaluate fracture resistance. The results of these measurements are shown in Tables 3 and 4.
【００１６】[0016]
【表３】 [Table 3]
【００１７】[0017]
【表４】 [Table 4]
【００１８】表３および表４に示される結果から、本発
明製造法１〜６により得られた複合被覆切削工具は、従
来製造法１〜１２により得られた複合被覆切削工具に比
べて、特に耐欠損性に優れていることが分かる。From the results shown in Tables 3 and 4, the composite coated cutting tools obtained by the production methods 1 to 6 of the present invention are particularly superior to the composite coated cutting tools obtained by the conventional production methods 1 to 12. It can be seen that the chipping resistance is excellent.
【００１９】実施例２ ＩＳＯ規格ＳＮＭＧ１２０４０８の形状を有し、表５に
示される配合組成の圧粉体を焼結して得られた通常のＴ
ｉＣＮ基サーメット（以下、サーメットという）Ｄ〜Ｅ
を用意した。Example 2 A normal T obtained by sintering a green compact having the shape of ISO standard SNMG120408 and having the composition shown in Table 5 was used.
iCN group cermet (hereinafter referred to as cermet) D to E
Prepared.
【００２０】[0020]
【表５】 [Table 5]
【００２１】表５に示されるサーメットＤ〜Ｅを基体と
し、その表面に通常のＣＶＤ法により、表６に示される
硬質層を形成し、被覆切削工具ｇ〜ｊを作製した。Cermets D to E shown in Table 5 were used as substrates, and hard layers shown in Table 6 were formed on the surface of the substrates by a normal CVD method to produce coated cutting tools g to j.
【００２２】[0022]
【表６】 [Table 6]
【００２３】この被覆切削工具ｇ〜ｊに、直径：０．３
ｍｍの各種金属球を投射速度：６０ｍ／分で７０秒投射
のショットブラストを施すことにより表７に示される成
分組成の各種金属層を形成し、本発明製造法７〜１０に
よる複合被覆切削工具を作製した。The coated cutting tools g to j had a diameter of 0.3.
Various metal layers having the component compositions shown in Table 7 are formed by subjecting various metal spheres of mm to shot blasting at a projection speed of 60 m / min for 70 seconds, and the composite coated cutting tool according to the manufacturing methods 7 to 10 of the present invention. Was produced.
【００２４】従来例３ 実施例２で作製した被覆切削工具ｇ〜ｊに通常の無電解
メッキ法により表７に示される成分の各種金属層を形成
し、従来製造法１３〜１６による複合被覆切削工具を作
製した。Conventional Example 3 Various metal layers having the components shown in Table 7 were formed on the coated cutting tools g to j produced in Example 2 by the usual electroless plating method, and the composite coated cutting according to the conventional production methods 13 to 16 was performed. A tool was made.
【００２５】従来例４ 実施例２で作製した被覆切削工具ｇ〜ｊに通常のＰＶＤ
法により表８に示される成分の各種金属層を形成し、従
来製造法１７〜２０による複合被覆切削工具を作製し
た。Conventional Example 4 The coated cutting tools g to j produced in Example 2 were made of ordinary PVD.
By forming various metal layers of the components shown in Table 8 by the method, the composite coated cutting tool according to the conventional manufacturing methods 17 to 20 was manufactured.
【００２６】前記本発明製造法７〜１０により得られた
複合被覆切削工具、従来製造法１３〜１６により得られ
た複合被覆切削工具および従来製造法１７〜２０により
得られた複合被覆切削工具を用い、 被削材：ＳＣＭ４４０（硬さＨB ２２０）丸棒 切削速度：２００ｍ／ｍｉｎ、 送り：０．２ｍｍ／ｒｅｖ．、 切込み：１．０ｍｍ、 切削時間：３０ｍｉｎ． 切削油：なし の条件で連続切削試験を行い、複合被覆切削工具の逃げ
面摩耗幅を測定し、耐摩耗性を評価した。The composite coated cutting tools obtained by the production methods 7 to 10 of the present invention, the composite coated cutting tools obtained by the conventional production methods 13 to 16 and the composite coated cutting tools obtained by the conventional production methods 17 to 20 are prepared. Work material: SCM440 (hardness HB 220) round bar Cutting speed: 200 m / min, feed: 0.2 mm / rev. , Depth of cut: 1.0 mm, cutting time: 30 min. A continuous cutting test was performed under the condition of no cutting oil: the flank wear width of the composite coated cutting tool was measured to evaluate the wear resistance.
【００２７】さらに、 被削材：ＳＣＭ４３９（硬さＨB ２２０）溝付き丸棒 切削速度：２００ｍ／ｍｉｎ、 送り：０．２ｍｍ／ｒｅｖ．、 切込み：１．０ｍｍ、 切削油：なし の条件で断続切削試験を行い、複合被覆切削工具の切刃
が欠損するまでの切削時間を測定し、耐欠損性を評価し
た。これらの測定結果を表７〜表８に示す。Work material: SCM439 (hardness HB 220) grooved round bar Cutting speed: 200 m / min, Feed: 0.2 mm / rev. An intermittent cutting test was performed under the following conditions: depth of cut: 1.0 mm, cutting oil: none, and the cutting time until the cutting edge of the composite coated cutting tool was broken was measured to evaluate the breakage resistance. The measurement results are shown in Tables 7 to 8.
【００２８】[0028]
【表７】 [Table 7]
【００２９】[0029]
【表８】 [Table 8]
【００３０】表７および表８に示される結果から、本発
明製造法７〜１０により得られた複合被覆切削工具は、
従来製造法１３〜２０により得られた複合被覆切削工具
に比べて、特に耐欠損性に優れていることが分かる。From the results shown in Tables 7 and 8, the composite coated cutting tools obtained by the production methods 7 to 10 of the present invention are:
It can be seen that the composite coated cutting tool obtained by the conventional manufacturing methods 13 to 20 is particularly excellent in fracture resistance.
【００３１】[0031]
【発明の効果】したがって、この発明の硬質層および金
属層を複合被覆してなる切削工具の製造方法によると、
耐摩耗性を低下させることなく従来よりも耐欠損性を大
幅に向上させた表面被覆切削工具を製造することがで
き、産業上優れた効果を奏するものである。Therefore, according to the method for producing a cutting tool comprising the hard layer and the metal layer, which are compositely coated, according to the present invention,
It is possible to manufacture a surface-coated cutting tool whose fracture resistance is significantly improved as compared with conventional ones without lowering wear resistance, and which has an excellent industrial effect.
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【手続補正書】[Procedure amendment]
【提出日】平成４年１０月７日[Submission date] October 7, 1992
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１１[Correction target item name] 0011
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１１】この被覆切削工具ａ〜ｆに、直径：０．３
ｍｍの各種金属球を投射速度：６０ｍ／秒で６０秒投射
のショットブラストを施すことにより表３に示される成
分組成の各種金属層を形成し、本発明製造法１〜６によ
る複合被覆切削工具を作製した。The coated cutting tools a to f had a diameter of 0.3.
Various metal layers having the component compositions shown in Table 3 are formed by subjecting various metal spheres of mm to shot blasting with a projection speed of 60 m / sec for 60 seconds, and a composite coated cutting tool according to the production methods 1 to 6 of the present invention. Was produced.
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２３[Name of item to be corrected] 0023
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００２３】この被覆切削工具ｇ〜ｊに、直径：０．３
ｍｍの各種金属球を投射速度：６０ｍ／秒で７０秒投射
のショットブラストを施すことにより表７に示される成
分組成の各種金属層を形成し、本発明製造法７〜１０に
よる複合被覆切削工具を作製した。The coated cutting tools g to j had a diameter of 0.3.
Various metal layers having the component compositions shown in Table 7 are formed by subjecting various metal spheres of mm to shot blasting at a projection speed of 60 m / sec for 70 seconds to form a composite coated cutting tool according to the production methods 7 to 10 of the present invention. Was produced.
フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ２３Ｃ 28/00 Ｂ Continuation of front page (51) Int.Cl. 5 Identification number Office reference number FI technical display area C23C 28/00 B
Claims (2)
ＴｉＣ、ＴｉＮ、ＴｉＣＮ、ＴｉＣＯ、ＴｉＣＮＯ、Ａ
ｌ2 Ｏ3 の内の１種または２種以上からなる硬質層（以
下、硬質層という）を被覆してなる硬質層被覆切削工具
に、Ｃｏ、Ｎｉ、Ｆｅの内の１種の金属または前記金属
の２種以上からなる合金の金属球をショットブラストす
ることを特徴とする硬質層および金属層を複合被覆して
なる切削工具の製造方法。1. A WC-based cemented carbide substrate as a substrate, on the surface of which TiC, TiN, TiCN, TiCO, TiCNO, A
A hard layer-coated cutting tool formed by coating a hard layer (hereinafter referred to as a hard layer) made of one or more of 1 2 O 3 and one metal selected from Co, Ni, and Fe, or the above. A method for producing a cutting tool, which comprises composite coating a hard layer and a metal layer, comprising shot-blasting a metal ball of an alloy composed of two or more kinds of metals.
表面に硬質層を被覆してなる硬質層被覆切削工具に、Ｃ
ｏ、Ｎｉ、Ｆｅの内の１種の金属または前記金属の２種
以上からなる合金の金属球をショットブラストすること
を特徴とする硬質層および金属層を複合被覆してなる切
削工具の製造方法。2. A hard-layer-coated cutting tool comprising a TiCN-based cermet as a substrate, the surface of which is coated with a hard layer.
Shot blasting a metal sphere of one kind of metal selected from o, Ni, and Fe or an alloy of two or more kinds of the above metals, and a method for manufacturing a cutting tool comprising a hard coating and a metal coating .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25215392A JPH0679542A (en) | 1992-08-27 | 1992-08-27 | Manufacture of cutting tool nade by compositely covering hard layer and metallic layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25215392A JPH0679542A (en) | 1992-08-27 | 1992-08-27 | Manufacture of cutting tool nade by compositely covering hard layer and metallic layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0679542A true JPH0679542A (en) | 1994-03-22 |
Family
ID=17233224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25215392A Pending JPH0679542A (en) | 1992-08-27 | 1992-08-27 | Manufacture of cutting tool nade by compositely covering hard layer and metallic layer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0679542A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07328810A (en) * | 1994-05-31 | 1995-12-19 | Mitsubishi Materials Corp | Surface covered tungsten carbide radical cemented carbide cutting tool having hard overlayer superior in interlayer adhesion performance |
| JP2008521630A (en) * | 2004-12-02 | 2008-06-26 | セラティチット オーストリア ゲゼルシャフト ミット ベシュレンクテル ハフツング | Machining tools |
| CN102328278A (en) * | 2011-07-01 | 2012-01-25 | 云南钛业股份有限公司 | Method for removing scale through shot blasting on titanium and titanium alloy strip coils |
-
1992
- 1992-08-27 JP JP25215392A patent/JPH0679542A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07328810A (en) * | 1994-05-31 | 1995-12-19 | Mitsubishi Materials Corp | Surface covered tungsten carbide radical cemented carbide cutting tool having hard overlayer superior in interlayer adhesion performance |
| JP2008521630A (en) * | 2004-12-02 | 2008-06-26 | セラティチット オーストリア ゲゼルシャフト ミット ベシュレンクテル ハフツング | Machining tools |
| USRE45154E1 (en) | 2004-12-02 | 2014-09-23 | Ceratizit Austria Gesellschaft Mbh | Tool for machining |
| CN102328278A (en) * | 2011-07-01 | 2012-01-25 | 云南钛业股份有限公司 | Method for removing scale through shot blasting on titanium and titanium alloy strip coils |
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