JPS6347067A - Cutting tool and manufacture therefor - Google Patents
Cutting tool and manufacture thereforInfo
- Publication number
- JPS6347067A JPS6347067A JP18890086A JP18890086A JPS6347067A JP S6347067 A JPS6347067 A JP S6347067A JP 18890086 A JP18890086 A JP 18890086A JP 18890086 A JP18890086 A JP 18890086A JP S6347067 A JPS6347067 A JP S6347067A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- welding
- sintered body
- abrasive grains
- base 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
- 238000004519 manufacturing process Methods 0.000 title claims 2
- 238000005520 cutting process Methods 0.000 title description 3
- 239000002184 metal Substances 0.000 claims abstract description 33
- 229910052751 metal Inorganic materials 0.000 claims abstract description 33
- 238000003466 welding Methods 0.000 claims abstract description 25
- 239000006061 abrasive grain Substances 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 4
- 239000010432 diamond Substances 0.000 claims abstract description 4
- 239000010953 base metal Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 abstract description 8
- 229910052742 iron Inorganic materials 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 abstract description 6
- 239000000654 additive Substances 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 abstract description 2
- 229910000905 alloy phase Inorganic materials 0.000 abstract 1
- 230000000452 restraining effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（］）産業上の利用分野
本発明は研削工具、特にダイヤモンド、ＣＢＮ等の超硬
質砥粒を用いた切断砥石等の改良に関する。。DETAILED DESCRIPTION OF THE INVENTION (]) Industrial Application Field The present invention relates to improvements in grinding tools, particularly cutting wheels using ultra-hard abrasive grains such as diamond and CBN. .
（２）従来技術
一般に研削工具は刃先となるチップと台金が一体に接合
されて形成される。超硬質砥粒を結合してなるチップ所
謂超硬質砥粒層は、台金に鑞付は或は電気溶接されてい
る。(2) Prior Art Generally, a grinding tool is formed by integrally joining a tip serving as a cutting edge and a base metal. The so-called ultra-hard abrasive grain layer, which is a chip formed by bonding ultra-hard abrasive grains, is brazed or electrically welded to the base metal.
（３）発明が解決しようとする問題点
電気抵抗溶接は作業が簡単で、溶接強度も高く好ましい
。然し所要の強度を保持し研削効率の良い工具を得るに
は、台金と結合材の組合せ、特に結合材の組成の選択が
難しく、また台金えの部分焼入の発生や溶接部分の脆弱
化が起り易く、未だ完全なものは得られていない。(3) Problems to be Solved by the Invention Electric resistance welding is preferable because it is easy to work and has high welding strength. However, in order to obtain a tool that maintains the required strength and has good grinding efficiency, it is difficult to select the combination of the base metal and the bonding material, especially the composition of the bonding material, and it is difficult to select the combination of the base metal and the bonding material. It is easy for this to occur, and a perfect product has not yet been obtained.
（４）問題点を解決するための手段
台金はカーボン量０．２％以上の鋼材になると溶接後に
部分焼入組織が生しクラッカが入りやすい。(4) Means for solving the problem If the base metal is a steel material with a carbon content of 0.2% or more, a partially quenched structure will form after welding and cracks will easily form.
また結合材はＦｅに比し、ＣｏにＣｕ、 Ｗ、 Ｃｕ−
３ｎ等を添加すると研削性が向−ヒし、所要の強度も保
持されるが、溶接により台金と結合材との接合面に台金
層を形成するためかその部分が脆弱化する欠点がある。In addition, the binding materials are Co, Cu, W, and Cu- compared to Fe.
Addition of 3n, etc. improves the grindability and maintains the required strength, but there is a drawback that the base metal layer is formed on the joint surface between the base metal and the bonding material by welding, which makes that part brittle. be.
本発明はこの点に着目し、脆弱化防止のため種々の実験
を行った結果、ＮｉまたはＦｅの金属層を台金と結合材
の間に介在させることにより所期の目的を達することが
出来たものである。The present invention focused on this point, and as a result of conducting various experiments to prevent brittleness, it was possible to achieve the desired purpose by interposing a Ni or Fe metal layer between the base metal and the bonding material. It is something that
即ちこの特定の金属層の介在により、台金の焼入状態の
緩和と、台金と結合材との脆弱台金相の発生を防止し、
また結合材自体の組成範囲の選択幅を拡げることが出来
たものである。That is, the presence of this specific metal layer relaxes the hardened state of the base metal and prevents the formation of a brittle base metal phase between the base metal and the binder,
Furthermore, the selection range of the composition range of the binder itself can be expanded.
更に、この金属層を形成するための手段として、介在せ
しめる金属状片の形状を予め縦波形成は横屈曲状等の波
状に形成しておくことにより、在来の溶接法より簡易に
電気抵抗溶接が行ない得ることも創案した。Furthermore, as a means for forming this metal layer, the shape of the metal piece to be interposed is formed in advance into a wavy shape such as a longitudinal waveform or a transversely bent shape, thereby making it easier to reduce the electrical resistance than with conventional welding methods. He also invented what welding can do.
（５）実施例
第１図において、１は鋼製の台金で、２はダイヤモンド
、ＣＢＮ等の超硬質砥粒を結合した金属焼結体である。(5) Embodiment In FIG. 1, 1 is a base metal made of steel, and 2 is a metal sintered body bonded with ultra-hard abrasive grains such as diamond or CBN.
１と２はＮｉまたはＦｅの金属層３を介して一体に溶接
されている。1 and 2 are welded together via a metal layer 3 of Ni or Fe.
ＮｉまたはＦｅには、支障の生じない範囲で不純物や添
加物があっても勿論差し支えない。Of course, Ni or Fe may contain impurities or additives as long as they do not cause any trouble.
この溶接に際しては、Ｎｉ等の金属材を第２図ＡＢの３
′、或は第３図ＡＢの３＃の様に波状条片として、■、
２間に置き、圧接通電して行なう。During this welding, the metal material such as Ni should be
', or as a wavy strip like 3# in Figure 3 AB, ■,
Place it between 2 and apply pressure contact current.
斯くすればこの波状により抵抗加熱溶着が順調に進み、
例えば従来の如く焼結体側乃至は台金側の接合面を鋸歯
状に加工して電気抵抗を高める手数が省かれ、脆弱台金
相の発生を抑制される効果も期待される。In this way, resistance heating welding will proceed smoothly due to this wave pattern.
For example, it is possible to eliminate the need to increase electrical resistance by machining the bonding surface on the sintered body side or the base metal side into a sawtooth shape as in the past, and it is also expected to have the effect of suppressing the formation of a brittle base metal phase.
第１表は本発明の実施例並びに比較例を示すもので、台
金１に８４５Ｃを用い、結合すべき金属焼結体の組織並
びに、金属フィラーの有無、種類により、溶接品質に大
きな差があることを示すものである。Table 1 shows examples and comparative examples of the present invention. 845C is used as the base metal 1, and there is a large difference in welding quality depending on the structure of the metal sintered bodies to be joined and the presence or absence of metal filler and the type. It shows that something is true.
表中Ｂｚは６７％Ｃｕ ３３％（重量％、表中の％も同
様）のブロンズを示し、同表のフィラーの項中の金属の
％表示は、焼結体組成中の添加金属量を示す。In the table, Bz indicates 67% Cu 33% (weight%, % in the table is the same) bronze, and the percentage of metal in the filler section of the same table indicates the amount of added metal in the sintered body composition. .
同表により、Ｎｉを介在させた場合数も溶接品質が向上
し、また焼結体として好ましい２種以」二の金属成分よ
りなる場合、Ｎｉを介在させると添加金属を増加させる
ことが出来ることが明かである。According to the same table, the welding quality improves even when Ni is present, and when the sintered body is composed of two or more metal components, the amount of added metal can be increased when Ni is present. is clear.
第４図はＮｉ ９０％Ｃｕ １０％の金属焼結体と３４
５Ｃの台金の溶接において、０．２＋＋ｍのＮｉ条片を
用いた場合と用いない場合の溶接強度の差を示す図表で
ある。Figure 4 shows a metal sintered body of 90% Ni and 10% Cu.
2 is a chart showing the difference in welding strength when a 0.2++m Ni strip is used and when a 0.2++m Ni strip is not used in welding a 5C base metal.
（６）効果
実施例によっても明らかな様に、鋼製台金と超硬質砥粒
の金属焼結体との溶接が、ＮｉまたはＦｅの金属層を介
して行なわれることにより、溶接品質が向上し、しかも
金属焼結体の組成範囲が拡大され且溶接も容易に行うこ
とが出来る。(6) As is clear from the effect examples, the welding quality is improved by welding the steel base metal and the ultra-hard abrasive metal sintered body through a Ni or Fe metal layer. Moreover, the composition range of the metal sintered body is expanded and welding can be easily performed.
第１図は本発明工具を説明する部分側面図、第２図ＡＢ
、第３図ＡＢは本発明における溶接方法を示す説明図、
第４図は本発明の実施例と比較例の溶接強度を示す図表
である。
図中１は台金、２は金属焼結体、３は金属層を示す。Fig. 1 is a partial side view illustrating the tool of the present invention, Fig. 2 AB
, FIG. 3AB is an explanatory diagram showing the welding method in the present invention,
FIG. 4 is a chart showing the welding strengths of Examples of the present invention and Comparative Examples. In the figure, 1 indicates a base metal, 2 indicates a metal sintered body, and 3 indicates a metal layer.
Claims (5)
、Ｎ＿ｉまたはＦ＿ｅを主体とする金属層を介して溶接
されてなることを特徴とする研削工具。(1) A grinding tool characterized in that a steel base metal and a metal sintered body bonding ultra-hard abrasive grains are welded via a metal layer mainly composed of N_i or F_e.
なる特許請求の範囲第１項記載の工具。(2) The tool according to claim 1, wherein the ultra-hard abrasive grains are diamond grains or CBN grains.
項または第２項記載の工具。(3) The welding is electric resistance welding.
The tool described in Section 1 or Section 2.
ｎの１種以上によって形成されてなる特許請求の範囲第
１項、第２項または第３項記載の工具。(4) Metal sintered bodies are C_o, N_i, C_u, W, S_
The tool according to claim 1, 2 or 3, which is formed of one or more types of n.
属焼結体との間に、Ｎ＿ｉまたはＦ＿ｅを主体とする波
状金属条片を置き、台金と焼結体を該条片を介して多数
ヶ所接触する様圧押し、通電せしめて両者間を電気抵抗
溶接することを特徴とする研削工具の製造方法。(5) A wavy metal strip mainly made of N_i or F_e is placed between the steel base metal to be welded and the metal sintered body to which the ultra-hard abrasive grains are bonded, and the base metal and the sintered body are connected. A method for manufacturing a grinding tool, characterized by pressing the strip so that the strips come into contact with each other at multiple locations, applying electricity to weld the two together by electrical resistance welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18890086A JPS6347067A (en) | 1986-08-11 | 1986-08-11 | Cutting tool and manufacture therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18890086A JPS6347067A (en) | 1986-08-11 | 1986-08-11 | Cutting tool and manufacture therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6347067A true JPS6347067A (en) | 1988-02-27 |
Family
ID=16231846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18890086A Pending JPS6347067A (en) | 1986-08-11 | 1986-08-11 | Cutting tool and manufacture therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6347067A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000024549A3 (en) * | 1998-10-23 | 2002-10-03 | Norton Co | Stiffly bonded thin abrasive wheel |
| JP2013018118A (en) * | 2008-01-22 | 2013-01-31 | Saint-Gobain Abrasives Inc | Circular saw blade with elliptical gullets |
| CN103317449A (en) * | 2013-06-18 | 2013-09-25 | 天津腾达集团有限公司 | Grinding tool |
-
1986
- 1986-08-11 JP JP18890086A patent/JPS6347067A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000024549A3 (en) * | 1998-10-23 | 2002-10-03 | Norton Co | Stiffly bonded thin abrasive wheel |
| JP2013018118A (en) * | 2008-01-22 | 2013-01-31 | Saint-Gobain Abrasives Inc | Circular saw blade with elliptical gullets |
| CN103317449A (en) * | 2013-06-18 | 2013-09-25 | 天津腾达集团有限公司 | Grinding tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0448586B2 (en) | ||
| US6173886B1 (en) | Method for joining dissimilar metals or alloys | |
| US2474643A (en) | Method of brazing cemented carbides to steel | |
| US5161335A (en) | Abrasive body | |
| EP0163914B1 (en) | Method for welding cutter segments | |
| US3549337A (en) | Method of securing dense,metal-bonded refractory nitride bodies to steel | |
| US4139140A (en) | Method for producing an electrical contact element | |
| US3667099A (en) | Method of securing dense, metal-bonded refractory nitride bodies to steel and product | |
| JPS6347067A (en) | Cutting tool and manufacture therefor | |
| JPS5865588A (en) | Production of joined sintered hard alloy | |
| EP0299740B1 (en) | Method of brazing | |
| JPS61257777A (en) | Cutter segment associated with ferro base layer | |
| JPH0569337A (en) | Cutting tool | |
| JP4851029B2 (en) | Super abrasive tool with sintered super abrasive tip | |
| JPH0346268B2 (en) | ||
| JPH10166275A (en) | Superabrasive grain tool and substrate bond therefor | |
| JPS60259306A (en) | Composite tool and preparation thereof | |
| JPS6054362B2 (en) | Composite sintered tool | |
| JPS5938491A (en) | Composite sintered tool and production thereof | |
| JPH035073A (en) | Method for joining cemented carbide and steel and joined body thereof | |
| JPH0285307A (en) | Method for joining ferrous material | |
| JPS6012642Y2 (en) | Cutting tools | |
| JPH11294058A (en) | Brazed cutting tool excellent in bonding strength | |
| JPH04210382A (en) | Rotary cutter | |
| JPH0422961Y2 (en) |