JP2000052108A - Very high pressure cutting tool excellent in high load heavy cutting performance - Google Patents
Very high pressure cutting tool excellent in high load heavy cutting performanceInfo
- Publication number
- JP2000052108A JP2000052108A JP10221293A JP22129398A JP2000052108A JP 2000052108 A JP2000052108 A JP 2000052108A JP 10221293 A JP10221293 A JP 10221293A JP 22129398 A JP22129398 A JP 22129398A JP 2000052108 A JP2000052108 A JP 2000052108A
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- JP
- Japan
- Prior art keywords
- cutting
- powder
- high pressure
- load heavy
- brazing
- 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.)
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、Ａｕ合金ろう材
を介して、ダイヤモンド基またはｃＢＮ基超高圧焼結体
からなる切刃片を、炭化タングステンを主成分として含
有する炭化タングステン基超硬合金で構成された切削工
具体の切刃片ろう付け部に直接ろう付けした高負荷重切
削性能に優れた超高圧切削工具に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tungsten carbide-based cemented carbide containing tungsten carbide as a main component, comprising a cutting piece made of a diamond-based or cBN-based ultrahigh-pressure sintered body via an Au alloy brazing material. The present invention relates to an ultra-high pressure cutting tool excellent in high load heavy cutting performance brazed directly to a brazing portion of a cutting edge of a cutting tool body composed of:
【０００２】[0002]
【従来の技術】従来、ダイヤモンド基またはｃＢＮ基超
高圧焼結体からなる切刃片を、炭化タングステンを主成
分として含有する炭化タングステン基超硬合金で構成さ
れた切削工具本体の切刃片ろう付け部に、重量％（以
下、％は重量％を示す）で、例えば、Ｃｕ：２９．７
％、Ｚｎ：２８．１％、Ｎｉ：２．０％を含有し、残り
がＡｇと不可避不純物からなる代表組成を有するＡｇ合
金のろう材した超高圧切削工具が、例えば、板材の断続
切削において、高負荷重切削に利用されていたことが広
く知られている。2. Description of the Related Art Conventionally, a cutting edge piece of a cutting tool body made of a diamond-based or cBN-based ultra-high pressure sintered body and a tungsten carbide-based cemented carbide containing tungsten carbide as a main component is used. In the attachment part, in% by weight (hereinafter,% indicates% by weight), for example, Cu: 29.7
%, Zn: 28.1%, Ni: 2.0%, and a brazing ultrahigh-pressure cutting tool made of an Ag alloy having a typical composition consisting of Ag and unavoidable impurities, for example, in interrupted cutting of a sheet material. It is widely known that it has been used for high-load heavy cutting.
【０００３】[0003]
【発明が解決しようとする課題】一方、近年の切削加工
装置の高性能化はめざましく、かつ切削加工の省力化に
対する要求も強く、これに伴って、例えば、板材の断続
切削において、高負荷重切削加工においても高速化の傾
向にあるが、上記の従来ろう材を使用してろう付けした
切削工具においては、これを高速切削条件で用いると、
切刃層とＷＣ基超硬合金の下地層との接合強度が不十分
であるために、この部分からの剥離が発生し易く、比較
的短時間で使用寿命に至るのが現状である。On the other hand, in recent years, the performance of cutting equipment has been remarkably improved, and there has been a strong demand for labor saving in the cutting work. There is also a tendency to increase the speed in cutting, but in cutting tools brazed using the above-mentioned conventional brazing material, if this is used under high-speed cutting conditions,
Since the bonding strength between the cutting edge layer and the underlayer of the WC-based cemented carbide is insufficient, peeling from this portion is likely to occur, and the service life is currently reached in a relatively short time.
【０００４】[0004]
【課題を解決するための手段】そこで、本発明者等は、
上述の様な観点から、ダイヤモンド基またはｃＢＮ基超
高圧焼結体からなる切刃片をＷＣ基超硬合金の工具本体
の切刃片ろう付け部に、高負荷重切削加工下でも高速切
削加工時において、剥離の生じない強固な接合強度を有
する切削工具を開発すべく研究を行った結果、Ａｕを主
成分とするＡｕ合金ろう材を用いることにより、前記工
具本体と前記切刃片の間には優れたろう付け接合強度が
確保される様になり、したがって、この結果の切削工具
は、これを高負荷重切削加工下の高速切削に用いても前
記切刃片に剥離の発生なく、長期に亘って優れた切削性
能を発揮するという研究結果を得たのである。Means for Solving the Problems Accordingly, the present inventors have
In view of the above, a cutting edge piece made of a diamond-based or cBN-based ultra-high-pressure sintered body is cut into a brazing portion of a tool body made of a WC-based cemented carbide at a high-speed cutting even under heavy load heavy cutting. At the time, as a result of researching to develop a cutting tool having a strong joining strength that does not cause peeling, the use of an Au alloy brazing material containing Au as a main component allows the cutting between the tool body and the cutting blade piece. As a result, the resulting cutting tool can be used for high-speed cutting under high-load heavy-cutting without causing peeling of the cutting edge piece, resulting in a long-term use. The research results show that excellent cutting performance can be achieved over a wide range.
【０００５】この発明は、上記研究結果に基づいてなさ
れたものであって、ダイヤモンド基またはｃＢＮ基超高
圧焼結体材料で構成された切刃片を、重量ｗｔ％で、Ｃ
ｕ：４０〜６０％、 Ｔｉ：０．５〜１０％を含有し、
残りがＡｕと不可避不純物からなる組成を有するＡｕ合
金ろう材を介して、炭化タングステンを主成分として含
有する炭化タングステン基超硬合金で構成された工具本
体の切刃片ろう付け部に直接ろう付けしてなることを特
徴とする高負荷重切削性能に優れた超高圧切削工具、に
特徴を有するものである。The present invention has been made on the basis of the above-mentioned research results, and it has been proposed that a cutting blade made of a diamond-based or cBN-based ultrahigh-pressure sintered material be used in a weight% wt.
u: 40 to 60%, Ti: 0.5 to 10%,
The remainder is directly brazed to a cutting edge piece brazing portion of a tool body made of a tungsten carbide-based cemented carbide containing tungsten carbide as a main component via an Au alloy brazing material having a composition of Au and unavoidable impurities. An ultra-high pressure cutting tool excellent in high load heavy cutting performance, characterized in that:
【０００６】本発明のＡｕ合金ろう材は、従来使用のＡ
ｇ合金ろう材にくらべ、高融点を有するので、その分高
温下でのろう付け条件が得られるため、それだけ接合強
度を高めることが可能となる。その結果上記の如く優れ
たろう材となるのである。また本発明のＡｕ合金ろう材
は、Ｔｉ成分を含有しているため、ダイヤモンド基また
はｃＢＮ基超高圧焼結体と下地超硬合金中のＴｉ成分と
の整合性が良く、その分境界面での密着性に優れたもの
となり、接合強度を向上させる。[0006] The Au alloy brazing material of the present invention is made of a conventional A
Since it has a higher melting point than the g-alloy brazing material, brazing conditions at a high temperature can be obtained accordingly, so that the joining strength can be increased accordingly. As a result, an excellent brazing material as described above is obtained. Further, since the Au alloy brazing material of the present invention contains a Ti component, the diamond-based or cBN-based ultra-high-pressure sintered body has good consistency with the Ti component in the base cemented carbide, and the boundary surface is accordingly reduced. With excellent adhesion, and improve the bonding strength.
【０００７】[0007]
【本発明の実施の形態】以下、本発明の実施の形態につ
いて説明する。まず、工具本体焼結体の原料粉末とし
て、いずれも０．５〜１０μｍの範囲内の所定の平均粒
度を有するＷＣ粉末、ＴａＣ粉末、（Ｔｉ、Ｗ）Ｃ［重
量比で、ＴｉＣ／ＷＣ＝５０／５０］粉末、およびＣo
粉末を用い、これら原料粉末を所定の配合組成に配合
し、ボ−ルミルで７２時間湿式混合し、乾燥した後、１
ｔｏｎ／ｃｍ2の圧力で所定形状の圧粉体にプレス成形
し、これらの圧粉体を、１×１０-3ｔｏｒｒの真空中、
１３５０〜１４５０℃の範囲の所定の温度で、１時間保
持の条件で焼結し、焼結体に機械加工を施すことによ
り、いずれもＷＣ基超硬合金製にして、所定形状チップ
本体を製造した。Embodiments of the present invention will be described below. First, WC powder, TaC powder, and (Ti, W) C each having a predetermined average particle size in a range of 0.5 to 10 μm as a raw material powder of the tool body sintered body [TiC / WC = 50/50] powder, and Co
Using a powder, these raw material powders are blended in a predetermined blending composition, wet-mixed in a ball mill for 72 hours, dried, and dried.
ton / cm 2 at a pressure of 1 to 10 -3 torr.
By sintering at a predetermined temperature in the range of 1350 to 1450 ° C. for 1 hour and maintaining the sintered body, and machining the sintered body, all are made of a WC-based cemented carbide to produce a chip body having a predetermined shape. did.
【０００８】また、切刃片用の原料粉末として、いずれ
も０．５〜５μｍの範囲内の所定の平均粒度を有する純
度９９．９５％のダイヤモンド粉末またはｃＢＮ粉末、
ＴｉＣ粉末、ＴｉＮ粉末、ＴｉＣＮ粉末、ＴｉＢ2粉
末、ＡｌＮ粉末、Ａｌ2Ｏ3粉末およびＣｏ粉末から選ば
れた粉末を用い、これら原料粉末を所定の配合組成に配
合し、ボ−ルミルで所定時間湿式混合し、乾燥した後、
所定の圧力で所定形状の圧粉体にプレス成形し、これら
圧粉体を通常のベルト型超高圧焼結装置に装入し、４〜
６ＧＰａの範囲内の所定の圧力で、１２００〜１４００
℃の範囲内の所定の温度に、３０分間保持の条件で焼結
して、所定の寸法をもったダイヤモンド基焼結材料また
はｃＢＮ基焼結材料からなる焼結体を形成し、これにワ
イヤ−放電加工機を用いて、所定形状のチップ用切刃片
を製造した。Further, as raw material powders for cutting blade pieces, diamond powder or cBN powder having a predetermined average particle size in the range of 0.5 to 5 μm and having a purity of 99.95%,
Using a powder selected from TiC powder, TiN powder, TiCN powder, TiB 2 powder, AlN powder, Al 2 O 3 powder and Co powder, blending these raw material powders into a predetermined composition and using a ball mill for a predetermined time After wet mixing and drying,
Press molding into green compacts of a predetermined shape at a predetermined pressure, and these green compacts are charged into a normal belt-type ultra-high pressure sintering machine,
At a predetermined pressure in the range of 6 GPa, 1200 to 1400
Sintering at a predetermined temperature in a range of 30 ° C. for 30 minutes to form a sintered body made of a diamond-based sintered material or a cBN-based sintered material having a predetermined size, -A cutting edge piece for a chip having a predetermined shape was manufactured using an electric discharge machine.
【０００９】更に、通常の溶解法を用いて、所定の成分
組成をもった合金溶湯を調整し、いずれも通常の条件
で、インゴットに鋳造し、熱間圧延と冷間圧延を施して
一定寸法の本発明切削工具用Ａｕろう材および従来切削
工具用Ａｇろう材を夫々製造した。Further, a molten alloy having a predetermined component composition is prepared by a usual melting method, cast into an ingot under normal conditions, and subjected to hot rolling and cold rolling to obtain a fixed size. Of the present invention and the conventional Ag brazing material for cutting tools were manufactured respectively.
【００１０】次いで、上記の各種切刃片を適当な組み合
わせで、上記の各種工具本体の夫々の切刃片ろう付け部
に、上記Ａｕろう材の夫々を挟んだ状態でセットし、１
×１０-3ｔｏｒｒの真空中、９５０℃、５分間保持の条
件でろう付け接合することにより前記Ａｕろう材を用い
たチップからなる本発明切削工具を製造することが出来
る。Next, the above-mentioned various cutting blade pieces are set in an appropriate combination to the respective cutting-blade-brazing portions of the above-mentioned various tool bodies, with each of the above-mentioned Au brazing materials sandwiched therebetween.
The cutting tool of the present invention comprising a chip using the Au brazing material can be manufactured by brazing at 950 ° C. for 5 minutes in a vacuum of × 10 −3 torr.
【００１１】上述の様にして得られたＡｕろう材を用い
たチップからなる本発明切削工具は優れた高速切削性能
を示す様になる。[0011] The cutting tool of the present invention comprising a tip using the Au brazing material obtained as described above exhibits excellent high-speed cutting performance.
【００１２】次いで、本発明のＡｕ合金ろう材の成分組
成を上記の様に限定した理由について説明する。 （ａ）Ｃｕ Ｃｕ成分には、ろう付け部の破断強度を著しく向上させ
るほか、ろう材の流動性を増して、ろう付け性を向上さ
せる作用があるが、その含有量が４０％未満では、前記
作用に所望の効果が得られず、一方、その含有量が６０
％を越えると、ろう付け部の破断強度に低下傾向が現れ
るようになることから、その含有量を４０〜６０％、好
ましくは４５〜５５％と定めた。Next, the reason why the component composition of the Au alloy brazing material of the present invention is limited as described above will be described. (A) Cu The Cu component has a function of remarkably improving the breaking strength of the brazed portion and increasing the fluidity of the brazing material to improve the brazing property. However, if the content is less than 40%, The desired effect cannot be obtained in the above-mentioned action, while the content is 60%.
%, The breaking strength of the brazed portion tends to decrease, so the content is set to 40 to 60%, preferably 45 to 55%.
【００１３】（ｂ）Ｔｉ Ｔｉ成分には、ダイヤモンド基またはｃＢＮ基焼結材料
で構成された切刃片に対する濡れ性を一段と向上させる
作用があるが、その含有量が０．５％未満では、前記作
用に所望の効果が得られず、一方、その含有量が１０％
を越えると、ろう付け部の強度が低下することから、そ
の含有量を０．５〜１０％、望ましくは、１〜５％と定
めた。(B) Ti The Ti component has an effect of further improving the wettability to the cutting piece made of a diamond-based or cBN-based sintered material. However, if its content is less than 0.5%, The desired effect cannot be obtained in the above-mentioned action, while the content is 10%
If it exceeds, the strength of the brazed portion is reduced. Therefore, the content is determined to be 0.5 to 10%, preferably 1 to 5%.
【００１４】[0014]
【実施例】以下、本発明の実施例について、具体的に説
明する。まず、工具本体を製造する目的で、原料粉末と
して、いずれも表１示す平均粒度を有するＷＣ粉末、Ｔ
ａＣ粉末、（Ｔｉ、Ｗ）Ｃ［重量比で、ＴｉＣ／ＷＣ＝
５０／５０］粉末、およびＣo粉末を用い、これら原料
粉末を同じく表１に示される配合組成に配合し、ボ−ル
ミルで７２時間湿式混合し、乾燥した後、１ｔｏｎ／ｃ
ｍ2の圧力で所定形状の圧粉体にプレス成形し、これら
の圧粉体を、１×１０-3ｔｏｒｒの真空中、表１示す温
度で、１時間保持の条件で焼結し、焼結体に機械加工を
施すことにより、いずれもＷＣ基超硬合金製にして、Ｃ
ＩＳ規格ＴＮＧＡ３３２の形状（厚さ：３．１８ｍｍ×
一辺長さ：１６ｍｍの正三角形）をもったチップ本体Ａ
−１〜Ａ−３を製造した。EXAMPLES Examples of the present invention will be specifically described below. First, for the purpose of manufacturing a tool body, WC powder having an average particle size shown in Table 1 and T
aC powder, (Ti, W) C [by weight ratio, TiC / WC =
50/50] powder and Co powder, these raw material powders were similarly blended in the composition shown in Table 1, wet-mixed in a ball mill for 72 hours, dried, and then dried at 1 ton / c.
The green compact was press-molded into a predetermined shape at a pressure of m 2 , and these green compacts were sintered in a vacuum of 1 × 10 −3 torr at the temperature shown in Table 1 for 1 hour and sintered. By subjecting the consolidated body to machining, all are made of WC-based cemented carbide,
IS standard TNGA332 shape (thickness: 3.18mm x
Chip body A with one side length: 16 mm equilateral triangle)
-1 to A-3 were produced.
【００１５】[0015]
【表１】 [Table 1]
【００１６】また、切刃片を製造する目的で、原料粉末
として、いずれも平均粒度１μｍを有する純度９９．９
５％のｃＢＮ粉末、ＴｉＣ粉末、ＴｉＮ粉末、ＴｉＣＮ
粉末、ＴｉＢ2粉末、ＡｌＮ粉末、Ａｌ2Ｏ3粉末および
Ｃo粉末を用い、これら原料粉末を表２に示される配合
組成に配合し、ボ−ルミルで７２時間湿式混合し、乾燥
した後、３ｔｏｎ／ｃｍ2の圧力で所定形状の圧粉体に
プレス成形し、これら圧粉体を通常のベルト型超高圧焼
結装置に装入し、表２に示す圧力で、同じく表２に示す
温度で、３０分間保持の条件で焼結して、直径：２０ｍ
ｍ×厚さ：１．５ｍｍの寸法をもったｃＢＮ基焼結材料
からなる焼結体を形成し、これにワイヤ−放電加工機を
用いて、一辺の長さが５ｍｍの正三角形状のチップ用切
刃片Ｂ−１〜Ｂ−３を製造した。For the purpose of producing cutting blades, the raw material powders each have a purity of 99.9 having an average particle size of 1 μm.
5% cBN powder, TiC powder, TiN powder, TiCN
Using powder, TiB 2 powder, AlN powder, Al 2 O 3 powder and Co powder, these raw material powders were blended in the composition shown in Table 2, wet-mixed in a ball mill for 72 hours, dried, and dried for 3 tons. / Cm 2 at a pressure of 2 cm / cm 2 and press-molding these compacts into a usual belt-type ultra-high pressure sintering apparatus at the pressure shown in Table 2 and at the temperature shown in Table 2 Sintering for 30 minutes, diameter: 20m
m × thickness: A sintered body made of a cBN-based sintered material having a size of 1.5 mm is formed, and a regular triangular chip having a side length of 5 mm is formed on the sintered body using a wire-electric discharge machine. Cutting blade pieces B-1 to B-3 were manufactured.
【００１７】[0017]
【表２】 [Table 2]
【００１８】また、同様に、切刃片を製造する目的で、
原料粉末として、いずれも平均粒度１μｍを有する純度
９９．９５％のダイヤモンド粉末、ＴｉＣ粉末、ＴｉＮ
粉末、ＴｉＣＮ粉末およびＣｏ粉末を用い、これら原料
粉末を表３に示される配合組成に配合し、ボ−ルミルで
７２時間湿式混合し、乾燥した後、３ｔｏｎ／ｃｍ2の
圧力で所定形状の圧粉体にプレス成形し、これら圧粉体
を通常のベルト型超高圧焼結装置に装入し、表３に示す
圧力で、同じく表３に示す温度で、３０分間保持の条件
で焼結して、直径：２０ｍｍ×厚さ：１．５ｍｍの寸法
をもったダイヤモンド基焼結材料からなる焼結体を形成
し、これにワイヤ−放電加工機を用いて、一辺の長さが
５ｍｍの正三角形状のチップ用切刃片Ｃ−１〜Ｃ−３を
製造した。Similarly, for the purpose of manufacturing a cutting blade piece,
As raw material powders, 99.95% pure diamond powder, TiC powder, and TiN each having an average particle size of 1 μm.
Using powder, TiCN powder and Co powder, these raw material powders were blended in the composition shown in Table 3, wet-mixed for 72 hours with a ball mill, dried, and then pressed to a predetermined shape at a pressure of 3 ton / cm 2. These compacts are charged into a conventional belt-type ultrahigh-pressure sintering apparatus, and sintered at the pressure shown in Table 3 at the same temperature as shown in Table 3 for 30 minutes. Then, a sintered body made of a diamond-based sintered material having a size of diameter: 20 mm × thickness: 1.5 mm was formed, and a positive electrode having a side length of 5 mm was formed on the sintered body using a wire-electric discharge machine. Triangular tip cutting blade pieces C-1 to C-3 were manufactured.
【００１９】[0019]
【表３】 [Table 3]
【００２０】更に、通常の溶解法を用いて、表４に示さ
れる成分組成をもった合金溶湯を調整し、いずれも通常
の条件で、インゴットに鋳造し、熱間圧延と冷間圧延を
施して厚さ：０．３５ｍｍのろう材Ｄ−１〜Ｄ−６、お
よびろう材Ｄ−７を夫々製造した。Further, a molten alloy having the component composition shown in Table 4 was prepared by using a normal melting method, cast into an ingot under normal conditions, and subjected to hot rolling and cold rolling. And brazing materials D-1 to D-6 and D-7 having a thickness of 0.35 mm, respectively.
【００２１】[0021]
【表４】 [Table 4]
【００２２】次いで、上記の各種切刃片Ｂ−１〜３およ
びＣ−１〜３を表５に示される組み合わせで、上記の各
種工具本体Ａ−１〜３の夫々の切刃片ろう付け部に、表
５に示される組み合わせで、ろう材Ｄ−１〜６の夫々を
挟んだ状態でセットし、１×１０-3ｔｏｒｒの真空中、
９５０℃、５分間保持の条件でろう付け接合することに
より本発明切削工具用チップ１〜６（以下、単に本発明
チップ１〜６と言う）からなるフライス加工用の本発明
超高圧切削工具１〜６（以下、単に本発明切削工具１〜
６という）を夫々製造した。Next, the above-mentioned various cutting blade pieces B-1 to 3 and C-1 to 3 are combined as shown in Table 5 to form the respective cutting blade brazing portions of the above-mentioned various tool bodies A-1 to 3 respectively. In a combination shown in Table 5, each of the brazing materials D-1 to D-6 was set in a state of being sandwiched therebetween, and in a vacuum of 1 × 10 −3 torr,
The ultra-high pressure cutting tool 1 of the present invention for milling comprising the cutting tool tips 1 to 6 of the present invention (hereinafter simply referred to as the present chips 1 to 6) by brazing at 950 ° C. for 5 minutes. To 6 (hereinafter simply referred to as cutting tools 1 to 5 of the present invention)
6).
【００２３】[0023]
【表５】 [Table 5]
【００２４】また、比較の目的で、夫々の工具本体Ａ−
１〜３、夫々の切刃片Ｂ−１〜３およびＣ−１〜３を用
意し、Ｃｕ：２９．７％、Ｚｎ：２８．１％、Ｎｉ：
２．０％、Ａｇおよび不可避不純物とするろう材Ｄ−７
を、夫々の工具本体Ａ−１〜３の切刃片ろう付け部に挟
んだ状態で、夫々の切刃片Ｂ−１〜３およびＣ−１〜３
を表６の組み合わせで、上記ろう付けと同じ条件でろう
付け接合することにより、従来切削工具用チップ１〜６
（以下、単に従来チップ１〜６という）からなるフライ
ス加工用の従来超高圧切削工具１〜６（以下、単に従来
切削工具１〜６という）を夫々製造した。For the purpose of comparison, each tool body A-
1-3, each of the cutting pieces B-1 to B-3 and C-1 to 3 are prepared, and Cu: 29.7%, Zn: 28.1%, Ni:
Brazing filler metal D-7 with 2.0%, Ag and unavoidable impurities
Are sandwiched between the cutting edge brazing portions of the tool bodies A-1 to A-3, respectively, and the respective cutting blade pieces B-1 to B-3 and C-1 to C-3.
Are joined under the same conditions as in the above brazing by the combination of Table 6 to obtain the conventional cutting tool tips 1-6.
Conventional ultrahigh-pressure cutting tools 1 to 6 (hereinafter, simply referred to as conventional cutting tools 1 to 6) for milling, each of which is hereinafter simply referred to as conventional chips 1 to 6, were manufactured.
【００２５】[0025]
【表６】 [Table 6]
【００２６】次に、得られた本発明切削工具１〜３およ
び従来切削工具１〜３を用いて、 被削材：ＳＫＤ１１（ＨＲｃ４５） 切削速度：１５０ｍ／ｍｉｎ． 送り：０．２ｍｍ／刃 切り込み：０．３ｍｍ 切削時間：３０分 また、本発明切削工具４〜６および従来切削工具４〜６
を用いて、 被削材：１２％ＳｉＡｌ合金 切削速度：１０００ｍ／ｍｉｎ． 送り：０．２ｍｍ／刃 切り込み：０．５ｍｍ 切削時間：６０分 の条件で夫々高負荷重切削試験を行い、切刃片（切刃
層）における最大摩耗幅を測定した。これらの測定結果
を夫々表５、６に示した。Next, using the obtained cutting tools 1 to 3 of the present invention and the conventional cutting tools 1 to 3, a work material: SKD11 (HRc45), a cutting speed: 150 m / min. Feed: 0.2 mm / tooth Cutting depth: 0.3 mm Cutting time: 30 minutes In addition, the cutting tools 4 to 6 of the present invention and the conventional cutting tools 4 to 6
Work material: 12% SiAl alloy Cutting speed: 1000 m / min. Feed: 0.2 mm / tooth Cutting depth: 0.5 mm Cutting time: 60 minutes Each of the high load heavy cutting tests was performed, and the maximum wear width of the cutting piece (cutting layer) was measured. The results of these measurements are shown in Tables 5 and 6, respectively.
【００２７】[0027]
【発明の効果】本発明実施例と比較のための従来例の板
材による高負荷重切削試験の結果である最大摩耗幅の値
から明らかな様に、本発明の切削工具は、これを高速で
の高負荷重切削に用いても切刃片に剥離の発生なく、長
期に亘って優れた切削性能を発揮するものである。As is clear from the value of the maximum wear width as a result of the high load heavy cutting test using the conventional plate material for comparison with the embodiment of the present invention, the cutting tool of the present invention Even when used for heavy load heavy cutting, the cutting edge piece does not peel off and exhibits excellent cutting performance over a long period of time.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ２２Ｃ 5/02 Ｃ２２Ｃ 5/02 9/00 9/00 30/00 30/00 // Ｂ２３Ｋ 1/00 ３３０ Ｂ２３Ｋ 1/00 ３３０Ｂ 1/19 1/19 Ｂ Ｃ２２Ｃ 26/00 Ｃ２２Ｃ 26/00 Ｚ 29/08 29/08 29/16 29/16 Ｂ ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification symbol FI theme coat ゛ (Reference) C22C 5/02 C22C 5/02 9/00 9/00 30/00 30/00 // B23K 1/00 330 B23K 1/00 330B 1/19 1/19 B C22C 26/00 C22C 26/00 Z 29/08 29/08 29/16 29/16 B
Claims (1)
体材料で構成された切刃片を、重量ｗｔ％で、 Ｃｕ：４０〜６０％、 Ｔｉ：０．５〜１０％ を含有し、残りがＡｕと不可避不純物からなる組成を有
するＡｕ合金ろう材を介して、炭化タングステンを主成
分として含有する炭化タングステン基超硬合金で構成さ
れた工具本体の切刃片ろう付け部に直接ろう付けしてな
ることを特徴とする高負荷重重切削性能に優れた超高圧
切削工具。1. A cutting blade made of a diamond-based or cBN-based ultrahigh-pressure sintered material containing 40% to 60% of Cu and 0.5% to 10% of Ti by weight wt%, Is directly brazed to the cutting edge piece brazing portion of a tool body made of a tungsten carbide-based cemented carbide containing tungsten carbide as a main component via an Au alloy brazing material having a composition of Au and unavoidable impurities. An ultra-high pressure cutting tool with excellent high-load, heavy-duty cutting performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10221293A JP2000052108A (en) | 1998-08-05 | 1998-08-05 | Very high pressure cutting tool excellent in high load heavy cutting performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10221293A JP2000052108A (en) | 1998-08-05 | 1998-08-05 | Very high pressure cutting tool excellent in high load heavy cutting performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000052108A true JP2000052108A (en) | 2000-02-22 |
Family
ID=16764525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10221293A Withdrawn JP2000052108A (en) | 1998-08-05 | 1998-08-05 | Very high pressure cutting tool excellent in high load heavy cutting performance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000052108A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011045955A (en) * | 2009-08-27 | 2011-03-10 | Kyocera Corp | Cutting tool |
| US8449040B2 (en) | 2006-08-11 | 2013-05-28 | David R. Hall | Shank for an attack tool |
| US8454096B2 (en) | 2006-08-11 | 2013-06-04 | Schlumberger Technology Corporation | High-impact resistant tool |
| CN106868375A (en) * | 2017-03-28 | 2017-06-20 | 河南省豫星华晶微钻有限公司 | A kind of nanometer diamond alkene enhancing hard alloy composite material and preparation method thereof |
| CN106929703A (en) * | 2017-03-28 | 2017-07-07 | 河南省豫星华晶微钻有限公司 | A kind of new titanium matrix composite containing nanometer diamond alkene and preparation method thereof |
| CN108544385A (en) * | 2018-03-05 | 2018-09-18 | 华侨大学 | Using tungsten carbide as the diamond grinding head of matrix and its method for welding |
-
1998
- 1998-08-05 JP JP10221293A patent/JP2000052108A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8449040B2 (en) | 2006-08-11 | 2013-05-28 | David R. Hall | Shank for an attack tool |
| US8454096B2 (en) | 2006-08-11 | 2013-06-04 | Schlumberger Technology Corporation | High-impact resistant tool |
| JP2011045955A (en) * | 2009-08-27 | 2011-03-10 | Kyocera Corp | Cutting tool |
| CN106868375A (en) * | 2017-03-28 | 2017-06-20 | 河南省豫星华晶微钻有限公司 | A kind of nanometer diamond alkene enhancing hard alloy composite material and preparation method thereof |
| CN106929703A (en) * | 2017-03-28 | 2017-07-07 | 河南省豫星华晶微钻有限公司 | A kind of new titanium matrix composite containing nanometer diamond alkene and preparation method thereof |
| CN108544385A (en) * | 2018-03-05 | 2018-09-18 | 华侨大学 | Using tungsten carbide as the diamond grinding head of matrix and its method for welding |
| CN108544385B (en) * | 2018-03-05 | 2020-06-26 | 华侨大学 | Diamond grinding head with tungsten carbide as substrate and brazing method thereof |
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