JPH04149076A - Tool with brazed superhard body and its production - Google Patents
Tool with brazed superhard body and its productionInfo
- Publication number
- JPH04149076A JPH04149076A JP27005590A JP27005590A JPH04149076A JP H04149076 A JPH04149076 A JP H04149076A JP 27005590 A JP27005590 A JP 27005590A JP 27005590 A JP27005590 A JP 27005590A JP H04149076 A JPH04149076 A JP H04149076A
- Authority
- JP
- Japan
- Prior art keywords
- brazing
- ultra
- hard object
- brazing material
- alloy
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 238000005219 brazing Methods 0.000 claims abstract description 133
- 229910052751 metal Inorganic materials 0.000 claims abstract description 60
- 239000002184 metal Substances 0.000 claims abstract description 60
- 239000010432 diamond Substances 0.000 claims abstract description 35
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 34
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 28
- 239000000956 alloy Substances 0.000 claims abstract description 28
- 239000013078 crystal Substances 0.000 claims abstract description 26
- 229910052582 BN Inorganic materials 0.000 claims abstract description 19
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 19
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 13
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 11
- 239000010953 base metal Substances 0.000 claims abstract description 11
- 239000012808 vapor phase Substances 0.000 claims abstract description 7
- 229910052709 silver Inorganic materials 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 59
- 238000000034 method Methods 0.000 claims description 9
- 238000001308 synthesis method Methods 0.000 claims 3
- 239000000945 filler Substances 0.000 abstract description 30
- 229910052796 boron Inorganic materials 0.000 abstract description 10
- 229910052737 gold Inorganic materials 0.000 abstract description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract 1
- 238000010189 synthetic method Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 23
- 238000009792 diffusion process Methods 0.000 description 23
- 150000002739 metals Chemical class 0.000 description 13
- 229910000679 solder Inorganic materials 0.000 description 13
- 239000002245 particle Substances 0.000 description 12
- 239000000843 powder Substances 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000011888 foil Substances 0.000 description 5
- 229910052721 tungsten Inorganic materials 0.000 description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- 229910001374 Invar Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- -1 cemented carbide Inorganic materials 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Ceramic Products (AREA)
Abstract
Description
【発明の詳細な説明】
Ｃ産業上の利用分野〕
本発明は超硬質物体、例えば単結晶ダイヤモンド、ＣＶ
Ｄ法による多結晶ダイヤモンド、立方晶窒化硼素（ＣＢ
Ｎ）焼結体あるいは単結晶立方晶窒化硼素などを合金に
接合するろう材、超硬質物体ろう付け工具およびその製
造方法に関する。[Detailed Description of the Invention] C. Industrial Application Field] The present invention is applicable to ultra-hard objects such as single crystal diamond, CV
Polycrystalline diamond, cubic boron nitride (CB) by D method
N) It relates to a brazing material for joining a sintered body or single crystal cubic boron nitride to an alloy, a tool for brazing an ultra-hard object, and a method for manufacturing the same.
天然の単結晶ダイヤモンド、気相合成法による多結晶ダ
イヤモンド膜、多結晶焼結ダイヤモンド、立方晶窒化硼
素焼結体、単結晶立方晶窒化硼素なとの超硬質物体は、
耐摩耗性および被削材との耐溶着性に優れており、工具
や耐摩耗性部品として用いられている。これら超硬質物
体を工具として用いる場合は、切り刃となる部分にこの
超硬質物体を用い、これを高剛性で靭性に優れた超硬合
金等の合金にろう付けする。Ultra-hard objects such as natural single crystal diamond, polycrystalline diamond film produced by vapor phase synthesis, polycrystalline sintered diamond, cubic boron nitride sintered body, and single crystal cubic boron nitride are
It has excellent wear resistance and welding resistance with work materials, and is used as tools and wear-resistant parts. When these ultra-hard objects are used as tools, the ultra-hard objects are used for the part that will become the cutting edge, and are brazed to an alloy such as cemented carbide that has high rigidity and excellent toughness.
この超硬質物体の合金への接合には、従来からΔＵろう
またはＡｇろうか用いられ、さらにこのろう付け層の強
度を向トしなり熱膨張差による応力を緩和するため、活
性金属を添加したり種々の金属層を介在させたりしてい
る。例えば、特開昭６３−３００８０３号公報では、接
合部のＡｕろうと八ｇろうの間にダイヤモンドと似通っ
た熱膨張係数を有するＷ、Ｍｏ、Ｗ Ｃ−Ｍ ｏ合金か
らなる金属音を介在させており、特開昭６１−４６０３
号公銀ては、Ａｇろうの上に活性金属であるＴａ、Ｔｉ
、Ｚｒを２〜３０％含有させたＡｕろうを介在させて単
結晶ダイヤモンドを鉄基Ｃｏ−Ｎ１焼結合金にろう付け
しており、特開昭６２−１４８１０４号公報では、Ａｇ
ろうとＴａを含有させたＡｕろうの間にＷ−Ｃｕ焼結合
金を介在させて単結晶ダイヤモンドを超硬合金にろう付
けしている。Conventionally, ΔU brazing or Ag brazing has been used to join this ultra-hard object to the alloy, and active metals have been added to increase the strength of this brazing layer and alleviate stress caused by differences in thermal expansion. In some cases, various metal layers are interposed. For example, in Japanese Patent Application Laid-Open No. 63-300803, a metal ring made of W, Mo, or W C-Mo alloy having a coefficient of thermal expansion similar to that of diamond is interposed between the Au solder and the 8G solder at the joint. JP-A No. 61-4603
In the case of the No. 1 public bank, active metals such as Ta and Ti are applied on top of the Ag solder.
, a single-crystal diamond is brazed to an iron-based Co-N1 sintered alloy using an Au solder containing 2 to 30% Zr.
Single-crystal diamond is brazed to cemented carbide by interposing a W--Cu sintered alloy between the solder and the Ta-containing Au solder.
また、超硬質物体の台金への接合には、Ｎｉろうか用い
られ、この場合も接合強度を増すためろう材にＢ、Ｓｉ
、Ｐ等か添加されている。例えば、特開昭６１−１９３
７７０号公報では、Ｂを２〜３０％含有させたＣＯを含
有するＮ１ろうを用い、超硬合金にダイヤモンド焼結体
を接合しており、特開平１−３０８８８３号公報ては、
Ｃｒを含有するＮｉろうとＰｄおよびＣｒを含有するＮ
１ろうに３％Ｂを添加したものを用い、ダイヤモンド粒
子成形体を超硬合金に接合しており、米国特許第３８９
４６７３号では、Ｃｒを含有するＮ１ろうに１０％以下
のＢ、ＳｉまたはＰを添加し、ダイヤモンド粒子を鋼材
に接合している。Additionally, Ni solder is used to join ultra-hard objects to the base metal, and in this case too, B and Si are added to the brazing material to increase the joint strength.
, P, etc. are added. For example, JP-A-61-193
In Japanese Patent No. 770, a diamond sintered body is bonded to a cemented carbide using an N1 solder containing CO containing 2 to 30% B, and in Japanese Patent Application Laid-open No. 1-308883,
Cr-containing Ni wax and Pd and Cr-containing N
A diamond particle molded body is bonded to a cemented carbide using a wax containing 3% B, and US Pat. No. 389
In No. 4673, 10% or less of B, Si, or P is added to N1 solder containing Cr, and diamond particles are bonded to the steel material.
しかしながら、前記の超硬質物体の合金へのろう接合に
おいて、ΔＵろうまたはＡｇろうによるろう付けては接
合部の強度か充分でなく、Ｔａ、Ｔ１、Ｚｒ、Ｈｆ等の
活性金属の拡散により接合部の強度を向上する場合にお
いても、これら活性金属の拡散か充分に行われずに、活
性金属を構成元素とする金属間化合物が形成され、ろう
付け部の延性か低下して脆くなるという問題点がある。However, in brazing the ultra-hard objects to alloys, brazing with ΔU brazing or Ag brazing does not provide sufficient strength of the joint, and the diffusion of active metals such as Ta, T1, Zr, Hf, etc. Even when improving the strength of brazed parts, the problem is that these active metals do not diffuse sufficiently and intermetallic compounds containing active metals as constituent elements are formed, reducing the ductility of the brazed part and making it brittle. be.
また、Ｂ成分を含有する前記Ｎｉろうにおいては、Ｂ成
分の過剰な拡散により、超硬質物体の結合相形成成分あ
るいはろう材構成成分とＢか脆い化合物を形成し、接合
部の強度か却って劣化する。In addition, in the Ni solder containing the B component, excessive diffusion of the B component causes B to form a brittle compound with the binder phase forming component of the ultra-hard object or the brazing material component, and the strength of the joint actually deteriorates. do.
本発明は、天然の単結晶ダイヤモンド、気相合成法によ
る多結晶ダイヤモンド膜、多結晶焼結ダイヤモンド、立
方晶窒化硼素焼結体、単結晶立方晶窒化硼素なとの超硬
質物体を、合金にろう接合に関する前記の如き問題点を
解決するためになされたものであって、接合部の強度を
向上させるために添加されたＡ１、Ｔｉ、Ｚｒ、Ｓｔ等
の活性金属の拡散を増長すると共にＢ成分の過剰な拡散
を防止して、接合強度の優れた超硬質物体用ろう材料、
超硬質物体ろう付け工具および超硬質物体ろう付け工具
の製造方法を提供することを目的とする。The present invention produces an alloy of ultra-hard objects such as natural single crystal diamond, polycrystalline diamond film produced by vapor phase synthesis, polycrystalline sintered diamond, cubic boron nitride sintered body, and single crystal cubic boron nitride. This was done to solve the above-mentioned problems regarding solder joints, and it increases the diffusion of active metals such as A1, Ti, Zr, and St, which are added to improve the strength of the joint, and also increases the diffusion of active metals such as B. A brazing material for ultra-hard objects that prevents excessive diffusion of components and has excellent bonding strength.
An object of the present invention is to provide a tool for brazing an ultra-hard object and a method for manufacturing the tool for brazing an ultra-hard object.
発明者等は、前記の問題点を解決するため、活性金属で
あるＡ１、Ｔｉ５Ｚｒ、Ｓｉ等の拡散を向上する手段に
ついて鋭意研究を重ねた。その結果、これら活性金属と
同時にＢを添加すると、拡散速度か著しく早められるこ
とを、新たに知見した。さらに、Ｂ成分および活性金属
であるＡ１、ＴＩ、Ｚｒ、Ｓｉ等の過剰な拡散を防止す
るためには、両側をＡｇまたはＡｕろう材層で覆うこと
か有効であることを知見し、本発明を完成した。In order to solve the above-mentioned problems, the inventors have conducted intensive research on means for improving the diffusion of active metals such as A1, Ti5Zr, and Si. As a result, we newly discovered that when B is added simultaneously with these active metals, the diffusion rate can be significantly accelerated. Furthermore, in order to prevent excessive diffusion of component B and active metals such as A1, TI, Zr, Si, etc., it was found that it is effective to cover both sides with a layer of Ag or Au brazing material, and the present invention completed.
本発明の超硬質物体用ろう材料は、超硬質物体と台金と
を接合する際に、前記超硬質物体および前記台金との間
にＡｇろう材層またはＡｕろう材層を介在させてろう付
けする中間ろう材であって、Ｂと、Ｔｉ、Ａｌ、Ｚｒお
よびＳｉのうちから選ばれる１種または２種以上と、Ａ
ｇろう合金またはＡｕろう合金とから成ることを要旨と
する。The brazing material for an ultra-hard object of the present invention is provided by interposing an Ag brazing material layer or an Au brazing material layer between the ultra-hard object and the base metal when joining the super-hard object and the base metal. An intermediate brazing filler metal to be attached, comprising B, one or more selected from Ti, Al, Zr and Si, and A.
The gist is that it consists of a brazing alloy or an Au brazing alloy.
本発明の超硬質物体ろう付け工具は、Ｂと、Ｔｉ、Ａｌ
、ＺｒおよびＳｉのうぢから選ばれる１種または２種以
上と、Ａｇろう合金またはＡｕろう合金とから成る中間
ろう材を用い、前記中間ろう材と超硬質物体および合金
との間にＡｇろう材層またはＡｕろう材層を介在させて
ろう付けしたことを要旨とする。The ultra-hard object brazing tool of the present invention comprises B, Ti, and Al.
, Zr, and Si, and an Ag brazing alloy or an Au brazing alloy. The gist is that brazing is performed with a metal layer or an Au brazing material layer interposed.
本発明の超硬質物体ろう付け工具の製造方法は、２層の
Ａｇろう材層またはＡｕろう材層の間に、Ｂと、Ｔｉ５
Ａｌ、ＺｒおよびＳｉのうちから選ばれる１種または２
種以上と、Ａｇろう合金またはＡｕろう合金とから成る
中間ろう材層を形成し、前記３層からなるろう材を超硬
質物体および合金との間に介在させてろう付けすること
を要旨とする。In the method for manufacturing a tool for brazing ultra-hard objects of the present invention, B and Ti5
One or two selected from Al, Zr and Si
The gist of the invention is to form an intermediate brazing material layer consisting of an Ag brazing alloy or an Au brazing alloy, and to interpose the brazing material made of the three layers between the ultra-hard object and the alloy for brazing. .
本発明か適用される超硬質物体は、天然の単結晶ダイヤ
モンド、気相合成法による多結晶ダイヤモンド膜、多結
晶焼結ダイヤモンド、立方晶窒化硼素焼結体、単結晶立
方晶窒化硼素なとである。The ultra-hard objects to which the present invention is applied include natural single crystal diamond, polycrystalline diamond film produced by vapor phase synthesis, polycrystalline sintered diamond, cubic boron nitride sintered body, and single crystal cubic boron nitride. be.
また、台金には鋼、モリブデン金属、タングステン金属
、超硬合金、Ｉｎｖａｒ金属のほが、鉄基の焼結合金な
とを用いることかできる。Further, the base metal may be made of steel, molybdenum metal, tungsten metal, cemented carbide, Invar metal, or iron-based sintered alloy.
中間ろう材層を形成するＢと、Ｔｉ５Ａｌ、Ｚｒおよび
Ｓｉのうちから選ばれる１種または２種以上の成分は、
各々の単体である必要はなく、化合物であっても構わな
い。また、Ａｇろう合金またはＡｌろう合金とは、合金
化される必要はなく、混合物の状態でも良い。B forming the intermediate brazing filler metal layer and one or more components selected from Ti5Al, Zr and Si are:
It does not have to be each single substance, and may be a compound. Furthermore, it is not necessary to form an alloy with the Ag brazing alloy or the Al brazing alloy, and a mixture may be used.
なお、超硬質物体かＣＢＮ焼結体または単結晶ＣＢＮで
ある場合は、中間ろう材層をＡｇろう材層またはＡｕろ
う材層で挟んだ３層構造でも、中間ろう材層だけの１層
構造てもいずれても良シｘ０というのは、超硬質物体か
ＣＢＮ焼結体または単結晶ＣＮＢである場合は、Ｂ、Ｔ
ｉ、Ａｌ、Ｚｒ等の過剰拡散はダイヤモンド等の場合に
比較して敏感でないためである。しかし、Ｂ成分の過剰
添加は避けなければならない。In addition, if the ultra-hard object is a CBN sintered body or single crystal CBN, even if it has a three-layer structure in which the intermediate brazing material layer is sandwiched between Ag or Au brazing material layers, it may have a one-layer structure with only the intermediate brazing material layer. However, if it is a super hard object, a CBN sintered body, or a single crystal CNB, B, T
This is because excessive diffusion of i, Al, Zr, etc. is less sensitive than in the case of diamond, etc. However, excessive addition of component B must be avoided.
本発明の中間ろう材料は、Ｂと、Ｔｉ、Ａｌ、Ｚｒおよ
びＳｉのうちから選ばれる１種または２種以上の成分を
含有するのて、Ｂ成分によりろう利の融点か低下し拡散
速度を早める効果か生して、Ｔｉ、Ａｌ、ＺｒおよびＳ
ｉをろう材に充分に拡散させて、接合強度を向上した。Since the intermediate brazing material of the present invention contains B and one or more components selected from Ti, Al, Zr, and Si, the B component lowers the melting point of the solder solder and reduces the diffusion rate. Taking advantage of the hastening effect, Ti, Al, Zr and S
The bonding strength was improved by sufficiently diffusing i into the brazing material.
また、この中間ろう材の両側をＡｇろう材層またはＡｕ
ろう材層で挟んだ３層構造としたので、Ｂと、Ｔ１、Ａ
１、ＺｒおよびＳｉのうぢから選ばれる１種または２種
以上の成分か過剰に拡散することか防止され、脆い化合
物層か形成されず、接合部の強度を増加することかでき
た。Also, both sides of this intermediate brazing material are coated with Ag brazing material layer or Au.
Since it has a three-layer structure sandwiched between brazing filler metal layers, B, T1, and A
1. Excessive diffusion of one or more components selected from Zr and Si was prevented, a brittle compound layer was not formed, and the strength of the joint was increased.
本発明の好適な実施例を比較例と併せて説明し本発明の
効果を明らかにする。Preferred embodiments of the present invention will be explained together with comparative examples to clarify the effects of the present invention.
（実施例１）
超硬質物体として直径約２ｍｍの単結晶ダイヤモンドと
、合金としてＩ ６ｍｍＸ ２５ｍｍＸ ２ｍｍの寸法
の金属モリブデンを用意した。一方、中間ろう材として
、平均粒径１．Ｏｆｌｍを有するＡｇ粉末およびＣｕ粉
末と、平均粒径１．５μｍのＺｒＢ２粉末を、発明例１
〜３として第１表に示される配合割合で配合し、これに
存機接着剤を加えてペースト状とした。(Example 1) A single-crystal diamond with a diameter of about 2 mm was prepared as an ultra-hard object, and metal molybdenum with dimensions of I 6 mm x 25 mm x 2 mm was prepared as an alloy. On the other hand, as an intermediate brazing filler metal, the average particle size is 1. Invention Example 1
-3 were blended at the blending ratios shown in Table 1, and the existing adhesive was added thereto to form a paste.
この中間ろう材を、別に用意した５０７１ｍの厚みの２
枚のＡｇろう箔の間に平均５μｍの厚みに塗布して、３
層構造のろう材を調製した。調製した３層構造のろう材
を、前記の単結晶ダイヤモンドと合金である金属モリブ
デンの間に挟み、頁空中で８６０℃の温度で５分間保持
して、ろう付けを行った。This intermediate brazing filler metal was prepared separately in 2 pieces with a thickness of 5071 m.
It was applied to an average thickness of 5 μm between two sheets of Ag wax foil, and 3
A layered brazing filler metal was prepared. The prepared three-layered brazing material was sandwiched between the single crystal diamond and metal molybdenum, which is an alloy, and brazing was performed by holding the brazing material in a page at a temperature of 860° C. for 5 minutes.
なお、比較例１として中間ろう材にＢ、Ｔｉ、Ａ１、Ｚ
ｒおよびＳｉの成分を含まないもの、比較例２として中
間ろう材用いずに１００μｍのＡｇろう箔のみのもの、
比較例３として中間ろう材のみのものについても、発明
例と同し条件で前記の単結晶ダイヤモンドと金属モリブ
デンのろう付すを行った。In addition, as Comparative Example 1, B, Ti, A1, and Z were used as the intermediate brazing filler metal.
one that does not contain R and Si components, one that does not use an intermediate brazing filler metal as Comparative Example 2, and one that only has a 100 μm Ag brazing foil;
As Comparative Example 3, the single crystal diamond and metal molybdenum were brazed under the same conditions as in the invention example using only an intermediate brazing material.
続いて得られた発明例１〜３および比較例１〜３の接合
面の剪断強度を測定したところ、第１表に示すような結
果を得た。Subsequently, the shear strength of the joint surfaces of Inventive Examples 1 to 3 and Comparative Examples 1 to 3 thus obtained was measured, and the results shown in Table 1 were obtained.
（以 下 余 白 ）
第１表に示したように、ＢやＴｉ等の活性金属を含有し
なかった中間ろう材用をいた比較例１は、活性金属の拡
散か充分てないため、剪断強度か５ｋ ｇ ／ ｍ ｒ
ｎ ２ と低く、中間ろう材を用いなかった比較例２も
、接合部の強度か充分てないため、同様に剪断強度か５
ｋｇ／ｍｍ２てあり、中間ろう材のみて接合した比較
例３は、活性金属の過剰拡散により、剪断強度か１２ｋ
ｇ／ｍｍ２と好ましい結果は得られなかった。(Left below) As shown in Table 1, in Comparative Example 1, which used an intermediate brazing filler metal that did not contain active metals such as B and Ti, the shear strength decreased due to insufficient diffusion of active metals. or 5kg/mr
In Comparative Example 2, which had a low n 2 and did not use an intermediate brazing filler metal, the strength of the joint was not sufficient, so the shear strength was similarly low.
kg/mm2, and in Comparative Example 3, which was joined using only the intermediate brazing filler metal, the shear strength decreased to 12k due to excessive diffusion of the active metal.
g/mm2, and a favorable result was not obtained.
これに対して、発明例１〜３は活性金属の拡散か早く、
かつ過剰拡散か防止されたので、剪断強度か２２〜２５
ｋ ｇ／ｍｍ’であって、本発明によって優れた接合
強度か得られることか確認され（実施例２）
超硬質物体として、マイクロ波プラズマＣＶＤ法により
傷付けＳｉ基基土上析出させた約４０μｍの多結晶ダイ
ヤモンド膜と、合金として１６ｍｍＸ ２５ｍｍＸ ４
ｍｍの寸法の鋼材（ＳＳ４１）を用意した。On the other hand, in Invention Examples 1 to 3, the active metal diffused quickly,
And since excessive diffusion was prevented, the shear strength was 22~25
kg/mm', and it was confirmed that excellent bonding strength could be obtained by the present invention (Example 2) As an ultra-hard object, a material of about 40 μm was scratched by microwave plasma CVD and deposited on a Si base substrate. polycrystalline diamond film and alloy as 16mm x 25mm x 4
A steel material (SS41) with a size of mm was prepared.
一方、発明例４〜６の中間ろう材として、平均粒径１０
μｍを有するＡｇ粉末およびＣｕ粉末と、平均粒径１．
３μｍのＢ粉末と、平均粒径０３μｍのＴ１粉末を、第
２表に示される配合割合で配合し、これに有機接着剤を
加えてペースト状とした。On the other hand, as the intermediate brazing filler metal of Invention Examples 4 to 6, the average particle size was 10
Ag powder and Cu powder having an average particle size of 1.
B powder of 3 μm and T1 powder of average particle size of 03 μm were blended in the proportions shown in Table 2, and an organic adhesive was added thereto to form a paste.
この発明例４〜６の中間ろう材を、別に用意した５０μ
ｍの厚みの２枚のＡｇろう箔の間に平均５μｍの厚みに
塗布して、３層構造のろう材を調製した。調製した３層
構造のろう材を、前記の多結晶ダイヤモンド膜と鋼材の
間に挟み、真空中て８６０°Ｃの温度て５分間保持して
、ろう付けを行った。The intermediate brazing filler metals of Examples 4 to 6 of this invention were separately prepared with 50μ
A three-layered brazing material was prepared by applying the material to an average thickness of 5 μm between two Ag brazing foils having a thickness of m. The prepared three-layered brazing filler metal was sandwiched between the polycrystalline diamond film and the steel material, and brazing was performed by holding the brazing material in vacuum at a temperature of 860° C. for 5 minutes.
なお、比較例４として中間ろう材にＴｉを含有するかＢ
成分を含まないもの、比較例５として中間ろう材を用い
ずに１００μｍのＡｇろう箔のみのもの、比較例６とし
て中間ろう材のみのものについても、発明例と同じ条件
で前記のＣＶＤ多結晶ダイヤモンドと鋼材のろう付けを
行った。In addition, as Comparative Example 4, whether Ti is contained in the intermediate brazing filler metal or B
The above-mentioned CVD polycrystalline material containing no component, Comparative Example 5 with only 100 μm Ag brazing foil without intermediate brazing filler metal, and Comparative Example 6 with only intermediate brazing filler metal were processed under the same conditions as the invention example. We brazed diamonds and steel.
ろう付け後に、ＣＶＤ多結晶ダイヤモンド膜からＳｉを
除去し、その多結晶ダイヤモンド面に同様なろう付け条
件で４ｒｎｍ角の鋼材（ＳＳ４＋）をろう付けし、発明
例４〜６および比較例４〜６の接合面の剪断強度を測定
したところ、第２表に示すような結果を得た。After brazing, Si was removed from the CVD polycrystalline diamond film, and a 4 nm square steel material (SS4+) was brazed to the polycrystalline diamond surface under similar brazing conditions to produce Invention Examples 4 to 6 and Comparative Examples 4 to 6. When the shear strength of the bonded surface was measured, the results shown in Table 2 were obtained.
（以 下 余 白 ）
第２表に示したように、Ｂを含有しなかった中間ろう材
を用いた比較例４は、活性金属の拡散か充分てないため
、剪断強度か１２ｋｇ／ｍｍ’ と低く、中間ろう材を
用いなかった比較例５も、接合部の強度か充分てないた
め、同様に剪断強度か８ｋｇ／ｍｍ”であり、中間ろう
材のみて接合した比較例６は、活性金属の過剰拡散によ
り、剪断強度か１３ｋｇ／ｍｍ２と好ましい結果は得ら
れなかった。(Left below) As shown in Table 2, in Comparative Example 4, which used an intermediate brazing filler metal that did not contain B, the shear strength was only 12 kg/mm' due to insufficient diffusion of the active metal. Comparative Example 5, which did not use an intermediate brazing filler metal, also had a shear strength of 8 kg/mm because the strength of the bonded part was not sufficient, and Comparative Example 6, which bonded only with an intermediate brazing filler metal, Due to excessive diffusion, the shear strength was 13 kg/mm2, which was not a favorable result.
これに対して、発明例４〜６は活性金属の拡散か早く、
かつ過剰拡散か防止されたので、剪断強度か２３〜２５
ｋｇ／ｍｍ’であって、超硬質物体かＣＶＤ多結晶ダイ
ヤモンドである場合に、本発明によって優れた接合強度
の得られることが確認された。On the other hand, in Invention Examples 4 to 6, the active metal diffused quickly,
And since excessive diffusion was prevented, the shear strength was 23 to 25.
kg/mm', and it was confirmed that excellent bonding strength can be obtained by the present invention when the object is an ultra-hard object or CVD polycrystalline diamond.
（実施例３）
超硬質物体として直径約０．５ｍｍの単結晶立方晶窒化
硼素と、合金として１６ｍｍＸ ２５ｍｒｎＸ２ｍｍの
寸法の金属タングステンを用意した。(Example 3) Single-crystal cubic boron nitride with a diameter of approximately 0.5 mm was prepared as an ultra-hard object, and metallic tungsten with dimensions of 16 mm x 25 mrn x 2 mm was prepared as an alloy.
一方、中間ろう材として、平均粒径１．０μｍを有する
Ａｕ粉末およびＣｕ粉末と、平均粒径０８μｍのＡ１お
よびＳ１粉末と、平均粒径１．３ｍｍのＢ粉末を、発明
例７〜９として第３表に示される配合割合で配合し、こ
れに有機接着剤を加えてペースト状とした。On the other hand, as intermediate brazing materials, Au powder and Cu powder having an average particle size of 1.0 μm, A1 and S1 powders having an average particle size of 08 μm, and B powder having an average particle size of 1.3 mm are used as Invention Examples 7 to 9. They were blended at the blending ratios shown in Table 3, and an organic adhesive was added thereto to form a paste.
この中間ろう材を、別に用意した５０μｍの厚みの２枚
のＡｕろう箔の間に平均５μｍの厚みに塗布して、３層
構造のろう材を調製した。調製した３層構造のろう材を
、前記の単結晶立方晶窒化硼素と金属タングステンの間
に挟み、真空中で１０５０°Ｃの温度で１０分間保持し
て、ろう付けを行った。This intermediate brazing material was applied to an average thickness of 5 μm between two separately prepared Au brazing foils each having a thickness of 50 μm to prepare a three-layered brazing material. The prepared three-layer brazing material was sandwiched between the single crystal cubic boron nitride and metal tungsten, and brazing was performed by holding the brazing material in vacuum at a temperature of 1050° C. for 10 minutes.
なお、比較例７として中間ろう材にＢ成分を含まないも
のについても発明例と同じ条件で前記の単結晶立方晶窒
化硼素と金属タングステンのろう付けを行った。Note that, as Comparative Example 7, in which the intermediate brazing material did not contain the B component, the single crystal cubic boron nitride and metallic tungsten were brazed under the same conditions as in the invention example.
続いて得られた発明例７〜９および比較例７の接合面の
剪断強度を測定したところ、第３表に示すような結果を
得た。Subsequently, the shear strength of the joint surfaces of Inventive Examples 7 to 9 and Comparative Example 7 was measured, and the results shown in Table 3 were obtained.
（以 下 余 白 ）
第３表に示したように、Ｂを含有しなかった中間ろう材
用いた比較例７は、活性金属の拡散か充分てないため、
剪断強度か１０ ｋｇ／ｍｍ２と低かった。(Left below) As shown in Table 3, in Comparative Example 7, which used an intermediate brazing filler metal that did not contain B, the active metal did not diffuse sufficiently.
The shear strength was as low as 10 kg/mm2.
これに対して、発明例７〜９は活性金属の拡散か早く、
かつ過剰拡散か防止されたので、剪断強度か２２〜２４
ｋｇ／ｍｒｎ’であって、超硬質物体か単結晶立方晶窒
化硼素である場合も、本発明によって優れた接合強度の
得られることか確認された。On the other hand, in Invention Examples 7 to 9, the active metal diffused quickly,
And since excessive diffusion was prevented, the shear strength was 22~24
kg/mrn', and it was confirmed that excellent bonding strength can be obtained by the present invention even when the object is an ultra-hard object or single-crystal cubic boron nitride.
（実施例４）
超硬質物体として直径約４ｍｍのＣＢＮ焼結体と、台金
としてＩ ６ｍｍＸ ２５ｍｍＸ ４ｍｍの寸法のＦｅ
−Ｎｉ系の低熱膨張率合金であるインバー （Ｉｒ＋ｖ
ａｒ）を用意した。一方、中間ろう材として、平均粒径
１．０μｍを存するＡｇ粉末およびＣｕ粉末と、平均粒
径０．８μｍのＡ１およびＳｉ粉末と、平均粒径１．３
ｍｍのＢ粉末を、発明例１０〜１２として第４表に示さ
れる配合割合で配合し、これに有機接着剤を加えてペー
スト状とした。(Example 4) A CBN sintered body with a diameter of about 4 mm as an ultra-hard object and Fe with dimensions of I 6 mm x 25 mm x 4 mm as a base metal.
- Invar (Ir+v
ar) was prepared. On the other hand, as intermediate brazing materials, Ag powder and Cu powder with an average particle size of 1.0 μm, A1 and Si powder with an average particle size of 0.8 μm, and an average particle size of 1.3 μm are used.
mm of B powder was blended as Invention Examples 10 to 12 at the blending ratio shown in Table 4, and an organic adhesive was added thereto to form a paste.
この中間ろう材をインバーの接合面に５μｍの厚みに塗
布し、その上にＣＢＮ焼結体を重ね合わせて、真空中て
８６０°Ｃの温度て５分間保持して、ろう付けを行った
。This intermediate brazing material was applied to a thickness of 5 μm on the bonding surface of Invar, and the CBN sintered body was superimposed thereon and brazed by holding the material at a temperature of 860° C. for 5 minutes in a vacuum.
なお、比較例８として中間ろう材にＢ成分を含まないも
の、比較例９として中間ろう材にＢ成分を過剰に含有す
るものについても発明例と同じ条件で前記のＣＢＮ焼結
体とインバーのろう付けを行った。Furthermore, Comparative Example 8, which does not contain the B component in the intermediate brazing filler metal, and Comparative Example 9, which contains an excessive amount of B component in the intermediate brazing filler metal, were also subjected to the same conditions as the invention example. I did the brazing.
続いて得られた発明例１０〜１２および比較例８〜９の
接合面の剪断強度を測定したところ、第４表に示すよう
な結果を得た。Subsequently, the shear strength of the joint surfaces of Inventive Examples 10 to 12 and Comparative Examples 8 to 9 thus obtained was measured, and the results shown in Table 4 were obtained.
（以 下 余 白 ）
第４表に示したように、Ｂを含有しなかった中間ろう材
を用いた比較例８は、活性金属の拡散か充分でないため
、剪断強度か５ｋｇ／ｍｒｎ２と低かった。また、Ｂを
３０％と過剰に含む比較例９は、活性金属か過剰拡散し
たため、剪断強度か１２ｋｇ／ｍｍ２と好ましい結果は
得られなかった。(Left below) As shown in Table 4, Comparative Example 8, which used an intermediate brazing filler metal that did not contain B, had a low shear strength of 5 kg/mrn2 due to insufficient diffusion of the active metal. . Furthermore, in Comparative Example 9 containing an excessive amount of B (30%), the shear strength was 12 kg/mm2, which was not a favorable result, due to excessive diffusion of the active metal.
これに対して、発明例１０〜１２は活性金属の拡散か早
く、かつ適量のＢを含有するので過剰拡散か防止され、
剪断強度か２０〜２３ ｋ ｇ／ｍｍと向上しており、
超硬質物体かＣＢＮｔ６結体である場合に、本発明によ
って優れた接合強度の得られることか確認された。On the other hand, in Invention Examples 10 to 12, the active metal diffuses quickly and contains an appropriate amount of B, so excessive diffusion is prevented.
The shear strength has improved to 20-23 kg/mm,
It was confirmed that the present invention can provide excellent bonding strength when the object is an ultra-hard object or a CBNt6 aggregate.
本発明の超硬質物体接合用の中間ろう材料、超硬質物体
ろう付け工具および超硬質物体ろう付け工具の製造方法
は、以上説明したように中間ろう材にＢと、Ｔ１、Ａ１
、ＺｒおよびＳｉのうちから選ばれる１種または２種以
上の成分を含有させたので、Ｂ成分によるろう材の融点
を低下させ、拡散速度を早める効果により、Ｔｉ、Ａｌ
、ＺｒおよびＳｉをろう材に充分に拡散させて、接合強
度か向上した。また、この中間ろう材の両側をＡｇろう
材層またはＡｕろう材層で挟んだ３層構造とてろう付け
するものであるため、Ｂと、Ｔｉ、Ａｌ、ＺｒおよびＳ
ｉのうちから選ばれる１種または２ｆ１以上の成分か過
剰に拡散することが防止され、脆い化合物層が形成され
ず、接合部の強度を増加することかできた。As explained above, the intermediate brazing material for joining ultra-hard objects, the ultra-hard object brazing tool, and the manufacturing method of the ultra-hard object brazing tool of the present invention include adding B to the intermediate brazing material, T1, A1
, Zr, and Si, the B component lowers the melting point of the brazing filler metal and accelerates the diffusion rate.
, Zr and Si were sufficiently diffused into the brazing filler metal to improve the bonding strength. In addition, since this intermediate brazing material is brazed with a three-layer structure in which both sides are sandwiched between Ag brazing material layers or Au brazing material layers, B, Ti, Al, Zr, and S
Excessive diffusion of one or more components selected from i or 2f1 was prevented, a brittle compound layer was not formed, and the strength of the joint was increased.
Claims (15)
物体および前記台金との間にＡｇろう材層またはＡｕろ
う材層を介在させてろう付けする中間ろう材であって、 Ｂと、Ｔｉ、Ａｌ、ＺｒおよびＳｉのうちから選ばれる
１種または２種以上と、Ａｇろう合金またはＡｕろう合
金とから成ることを特徴とする超硬質物体用ろう材料。(1) An intermediate brazing material for brazing an ultra-hard object and a base metal by interposing an Ag brazing material layer or an Au brazing material layer between the super-hard object and the base metal, , B, one or more selected from Ti, Al, Zr and Si, and an Ag brazing alloy or an Au brazing alloy.
求の範囲第１項に記載の超硬質物体用ろう材料。(2) The brazing material for an ultra-hard object according to claim 1, wherein the ultra-hard object is a single crystal diamond.
結晶ダイヤモンド膜である特許請求の範囲第１項に記載
の超硬質物体用ろう材料。(3) The brazing material for an ultra-hard object according to claim 1, wherein the ultra-hard object is a polycrystalline diamond film synthesized by a vapor phase synthesis method.
請求の範囲第１項に記載の超硬質物体用ろう材料。(4) The brazing material for an ultra-hard object according to claim 1, wherein the ultra-hard object is a cubic boron nitride sintered body.
請求の範囲第１項に記載の超硬質物体用ろう材料。(5) The brazing material for an ultra-hard object according to claim 1, wherein the ultra-hard object is single-crystal cubic boron nitride.
ばれる１種または２種以上と、Ａｇろう合金またはＡｕ
ろう合金とから成る中間ろう材を用い、前記中間ろう材
と超硬質物体および台金との間にＡｇろう材層またはＡ
ｕろう材層を介在させてろう付けしたことを特徴とする
超硬質物体ろう付け工具。(6) B, one or more selected from Ti, Al, Zr and Si, and Ag brazing alloy or Au
An Ag brazing material layer or an Ag brazing material layer is used between the intermediate brazing material and the ultra-hard object and the base metal.
A tool for brazing an ultra-hard object, characterized in that brazing is performed with a brazing metal layer interposed therebetween.
求の範囲第６項に記載の超硬質物体ろう付け工具。(7) The ultra-hard object brazing tool according to claim 6, wherein the ultra-hard object is a single crystal diamond.
結晶ダイヤモンド膜である特許請求の範囲第６項に記載
の超硬質物体ろう付け工具。(8) The ultra-hard object brazing tool according to claim 6, wherein the ultra-hard object is a polycrystalline diamond film synthesized by a vapor phase synthesis method.
請求の範囲第６項に記載の超硬質物体ろう付け工具。(9) The ultra-hard object brazing tool according to claim 6, wherein the ultra-hard object is a cubic boron nitride sintered body.
許請求の範囲第６項に記載の超硬質物体ろう付け工具。(10) The ultra-hard object brazing tool according to claim 6, wherein the ultra-hard object is single-crystal cubic boron nitride.
、Ｂと、Ｔｉ、Ａｌ、ＺｒおよびＳｉのうちから選ばれ
る１種または２種以上と、Ａｇろう合金またはＡｕろう
合金とから成る中間ろう材層を形成し、前記３層からな
るろう材を超硬質物体および台金との間に介在させてろ
う付けすることを特徴とする超硬質物体ろう付け工具の
製造方法。(11) B, one or more selected from Ti, Al, Zr, and Si, and an Ag brazing alloy or an Au brazing alloy between the two Ag brazing material layers or Au brazing material layers. 1. A method for manufacturing a tool for brazing a super-hard object, comprising: forming an intermediate brazing material layer consisting of the above three layers, and brazing the super-hard object with the brazing material interposed between the super-hard object and the base metal.
請求の範囲第１１項に記載の超硬質物体ろう付け工具の
製造方法。(12) The method for manufacturing an ultra-hard object brazing tool according to claim 11, wherein the ultra-hard object is a single crystal diamond.
多結晶ダイヤモンド膜である特許請求の範囲第１１項に
記載の超硬質物体ろう付け工具の製造方法。(13) The method for manufacturing an ultra-hard object brazing tool according to claim 11, wherein the ultra-hard object is a polycrystalline diamond film synthesized by a vapor phase synthesis method.
許請求の範囲第１１項に記載の超硬質物体ろう付け工具
の製造方法。(14) The method for manufacturing an ultra-hard object brazing tool according to claim 11, wherein the ultra-hard object is a cubic boron nitride sintered body.
許請求の範囲第１１項に記載の超硬質物体ろう付け工具
の製造方法。(15) The method for manufacturing an ultra-hard object brazing tool according to claim 11, wherein the ultra-hard object is single-crystal cubic boron nitride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27005590A JPH04149076A (en) | 1990-10-08 | 1990-10-08 | Tool with brazed superhard body and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27005590A JPH04149076A (en) | 1990-10-08 | 1990-10-08 | Tool with brazed superhard body and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04149076A true JPH04149076A (en) | 1992-05-22 |
Family
ID=17480893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27005590A Pending JPH04149076A (en) | 1990-10-08 | 1990-10-08 | Tool with brazed superhard body and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04149076A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2724924A1 (en) * | 1994-09-27 | 1996-03-29 | Commissariat Energie Atomique | Brazing boron nitride to itself or to refractory metal or alloy |
| US7621974B2 (en) | 2002-07-26 | 2009-11-24 | Mitsubishi Materials Corporation | Bonding structure and bonding method for cemented carbide element and diamond element, cutting tip and cutting element for drilling tool, and drilling tool |
-
1990
- 1990-10-08 JP JP27005590A patent/JPH04149076A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2724924A1 (en) * | 1994-09-27 | 1996-03-29 | Commissariat Energie Atomique | Brazing boron nitride to itself or to refractory metal or alloy |
| US7621974B2 (en) | 2002-07-26 | 2009-11-24 | Mitsubishi Materials Corporation | Bonding structure and bonding method for cemented carbide element and diamond element, cutting tip and cutting element for drilling tool, and drilling tool |
| KR101021461B1 (en) * | 2002-07-26 | 2011-03-16 | 미쓰비시 마테리알 가부시키가이샤 | Bonding structure and bonding method for cemented carbide and diamond element, cutting tip and cutting element for drilling tool, and drilling tool |
| US8147573B2 (en) | 2002-07-26 | 2012-04-03 | Mitsubishi Materials Corporation | Bonding structure and bonding method for cemented carbide element and diamond element, cutting tip and cutting element for drilling tool, and drilling tool |
| US8728184B2 (en) | 2002-07-26 | 2014-05-20 | Mitsubishi Materials Corporation | Bonding structure and bonding method for cemented carbide element and diamond element, cutting tip and cutting element for drilling tool, and drilling tool |
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