JP2798279B2 - End joining structure of material and end joining method - Google Patents
End joining structure of material and end joining methodInfo
- Publication number
- JP2798279B2 JP2798279B2 JP1284268A JP28426889A JP2798279B2 JP 2798279 B2 JP2798279 B2 JP 2798279B2 JP 1284268 A JP1284268 A JP 1284268A JP 28426889 A JP28426889 A JP 28426889A JP 2798279 B2 JP2798279 B2 JP 2798279B2
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- composition
- joining
- metal
- materials
- ceramics
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Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明は、セラミックスやセラミックスと金属のよ
うな異種素材間に連続的に組成を変化させた中間層を配
置した傾斜機能材料などを接合できるようにした材料の
端部接合処理構造及びその端部接合処理方法に関し、既
存の溶接法の適用を可能としたものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention can join functionally graded materials in which an intermediate layer having a continuously changed composition is arranged between different materials such as ceramics and ceramics and metal. With regard to the structure for joining the ends of the material and the method for joining the ends, the existing welding method can be applied.
［従来の技術］ 新規な材料の開発研究が進められており、従来の金属
材料に代わるセラミックスや従来の単純な張り合わせ材
料と異なり、表と裏の性質が全く異なるとともに、表か
ら裏にいくにしたがって徐々に原子・分子レベルでの性
質が連続的に変化する傾斜機能材料を開発されれつつあ
る。[Prior art] New materials are being researched and developed. Unlike ceramics that replace conventional metal materials and conventional simple bonding materials, the properties of the front and back are completely different, and the front and back are required Therefore, functionally graded materials whose properties at the atomic and molecular levels gradually change are being developed.
この傾斜機能材料としては、例えば、宇宙往還機ある
いは核融合炉などで使用する熱応力緩和機能を備えた超
高温材料があり、セラミックスと金属の異種材料間に連
続的に組成を変化させた中間層（傾斜組成制御層）を配
置し、熱膨張をはじめとする物性値や組織を連続的に変
化させ、セラミックスによって耐熱性を与えると同時
に、金属によって熱伝導性及び機械的強度を与えるよう
にしている。さらに、傾斜機能材料は、熱応力緩和機能
だけでなく、組成変化とともにヤング率、熱膨張率、熱
伝導率、電気伝導率などの特性値の変化を制御すること
により、求められる環境に適合した機能性を持たせるこ
とができる。また、傾斜機能材料としては、均一材にお
いて組織に傾斜機能を持たせるようにしたものも考えら
れている。Such functionally graded materials include, for example, ultra-high-temperature materials with a thermal stress relaxation function used in spacecraft and fusion reactors, and intermediate materials in which the composition is continuously changed between different materials of ceramics and metals. A layer (gradient composition control layer) is arranged to continuously change physical properties and structure, including thermal expansion, so that heat resistance is given by ceramics and thermal conductivity and mechanical strength are given by metal. ing. In addition, the functionally graded material is suitable for the required environment by controlling not only the thermal stress relaxation function but also the change of characteristic values such as Young's modulus, coefficient of thermal expansion, thermal conductivity, and electrical conductivity with composition change. Functionality can be provided. Further, as a functionally graded material, a material having a functionally graded structure in a uniform material has been considered.
このようなセラミックスや傾斜機能材料を実用化する
場合には、構造部材などとの接合が必要となり、これら
材料の開発研究と並行して接合法は確立しなければなら
ない技術の一つである。When such ceramics and functionally graded materials are put to practical use, joining with structural members and the like is necessary, and joining methods are one of the techniques that must be established in parallel with the development and research of these materials.
［発明が解決しようとする課題］ ところが、現在の接合技術では、セラミックスなどの
接合のため拡散接合法などがあるが、真空炉を必要とす
るなど大きな材料の接合ができなかったり、宇宙往還機
等の大構造物への接合ができないとういう問題がある。[Problems to be Solved by the Invention] However, in the current joining technology, there is a diffusion joining method for joining ceramics or the like, but it is not possible to join a large material such as a vacuum furnace, or a space shuttle. There is a problem that it cannot be joined to a large structure such as.
特に、傾斜機能材料で、例えば表面をセラミックスと
して表面を金属とした耐熱材料の場合には、裏面につい
ては接合が可能となるが、傾斜機能材料の端部同志の接
合に溶接法が適用できないため、隙間部分の耐熱性が低
下し、傾斜機能材料の持つ特長を最大限利用することが
できないという問題もある。In particular, in the case of a functionally graded material, for example, in the case of a heat-resistant material in which the surface is ceramic and the surface is metal, the back surface can be joined, but the welding method cannot be applied to the joining of the ends of the functionally graded material. Also, there is a problem that the heat resistance of the gap portion is reduced, and the features of the functionally graded material cannot be used to the maximum.
この発明はかかる従来技術の課題に鑑みてなされたも
ので、セラミックや傾斜機能材料等であっても既存の溶
接法によって接合することができる材料の端部接合処理
構造及びその端部接合処理方法を提供しようとするもの
である。SUMMARY OF THE INVENTION The present invention has been made in view of the problems of the related art, and has an end joining structure and a method of joining materials that can be joined by an existing welding method even if the material is ceramic or functionally graded material. It is intended to provide.
［課題を解決するための手段］ 上記課題を解決するため、この発明の材料の端部接合
処理構造は、異種素材間に連続的に組成を変化させた中
間層を配置した傾斜機能材料の当該組成変化方向と交差
する接合端部方向の組成を変化しても最も外側端部が溶
接可能な組成にしてあること特徴とするものである。[Means for Solving the Problems] In order to solve the above-mentioned problems, an edge bonding treatment structure of a material according to the present invention is directed to a functionally graded material in which an intermediate layer having a continuously changed composition is arranged between different materials. Even if the composition in the joining end direction crossing the composition change direction is changed, the outermost end has a composition that enables welding.
また、この発明の材料の端部接合処理方法は、複数の
原料粉末を接合端部方向の組成に傾斜を与えて最外端部
が溶接可能な原料粉末となるように充填成形した後、加
熱焼結するようにしたことを特徴とするものである。Further, in the method for joining the end portions of the material of the present invention, the plurality of raw material powders are filled and formed so that the composition in the joining end direction is inclined so that the outermost end becomes a weldable raw material powder, and then heated. It is characterized by being sintered.
［作 用］ この材料の端部接合処理構造によれば、セラミックス
やセラミックスと金属の傾斜機能材料など溶接ができな
い材料であっても接合端部方向の組成を変化させ、表面
がセラミックスで裏面が金属とされ厚さ方向に組成が傾
斜されている傾斜機能材料の場合には、表裏の厚さ方向
の組成の傾斜化に加え、端部方向にも組成を傾斜化する
ようにして最外端部を金属組成とするようにしており、
この金属組成部分を利用することで溶接による接合を可
能としている。[Operation] According to the edge joining structure of this material, even in the case of materials that cannot be welded, such as ceramics or functionally graded materials of ceramics and metal, the composition in the joining end direction is changed, and the front surface is ceramic and the back surface is ceramic. In the case of a functionally graded material that is metal and has a composition gradient in the thickness direction, in addition to the composition gradient in the thickness direction on the front and back, the composition is also gradient in the edge direction, so that the outermost end The part is made to have a metal composition,
By utilizing this metal composition portion, joining by welding is enabled.
この材料の端部接合処理方法によれば、セラミックス
やセラミックスと金属の傾斜機能材料など溶接ができな
い材料であっても接合端部方向の組成を変化させ、最外
端部を金属組成に処理する場合に、粉末冶金法を利用し
て原料粉末の組成に傾斜を与えるようにして充填成形す
るようにし、この後、加熱焼結することで、例えばセラ
ミックスの場合には、端部方向にのみ組成を傾斜化して
最外端部を金属とするようにし、表面がセラミックスで
裏面が金属とされ厚さ方向に組成が傾斜されている傾斜
機能材料の場合には、表裏の厚さ方向の組成の傾斜化に
加え、端部方向にも組成を傾斜化した最外端部を金属組
成とするようにでき、この金属組成部分を利用すること
で溶接による接合を可能としている。According to this method of joining the ends of materials, even in the case of materials that cannot be welded, such as ceramics or functionally graded materials of ceramics and metal, the composition in the joining end direction is changed, and the outermost end is treated to a metal composition. In this case, the powder metallurgy method is used to fill and mold the composition of the raw material powder so as to give a gradient, and then, by heating and sintering, for example, in the case of ceramics, the composition is only in the end direction. In the case of a functionally graded material in which the outermost end is made of metal and the front surface is made of ceramics and the back surface is made of metal and the composition is inclined in the thickness direction, the composition of the front and back thickness direction is In addition to the inclination, the outermost end, whose composition is also inclined in the end direction, can be made the metal composition, and the joining by welding is enabled by using this metal composition portion.
［実施例］ 以下、この発明の実施例を図面に基づき詳細に説明す
る。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第１図はこの発明の材料の端部接合処理構造の一実施
例にかかり、傾斜機能材料に適用した場合の概略構成図
である。FIG. 1 is a schematic diagram showing an embodiment of a material end joining structure according to the present invention, which is applied to a functionally graded material.
この材料の端部接合処理構造10では、接合対象となる
材料11が傾斜機能材料であり、これまで考えられている
傾斜機能材料は、例えば表面11aがセラミックス12とさ
れ、裏面11bが金属13となっており、これらの中間層
は、組成が表裏方向（厚さ方向）の一次元的に連続して
変化するようになっている。In the end joining structure 10 of this material, the material 11 to be joined is a functionally graded material, and the functionally graded materials that have been considered so far include, for example, the front surface 11a is made of ceramics 12, and the back surface 11b is made of metal 13. The composition of these intermediate layers changes one-dimensionally and continuously in the front and back directions (thickness direction).
このため材料11の裏面11bは金属13であることから構
造材などの金属と簡単に溶接を行なって接合することが
できるが、材料11の端部11cでは、裏面11b付近が金属13
であることから溶接ができるとしても端部11c全体を接
合することができない。For this reason, since the back surface 11b of the material 11 is the metal 13, the back surface 11b of the material 11 can be easily welded and joined to a metal such as a structural material.
Therefore, even if welding can be performed, the entire end 11c cannot be joined.
そこで、この材料11の端部接合処理構造10では、接合
端部方向、すなわち材料11の幅方向Ｘ及び長さ方向Ｙに
ついても組成を中央部から端部11cに向かって連続的に
最外端部が金属13となるように傾斜化している。Therefore, in the end joining structure 10 of the material 11, the composition is continuously changed from the center toward the end 11c in the joining end direction, that is, in the width direction X and the length direction Y of the material 11. The part is inclined so as to be metal 13.
したがって、この材料11では、板厚方向の組成の傾斜
化とともに、表裏面と平行な面方向にも組成が傾斜化さ
れ、二次元的に組成が傾斜化されている。Therefore, in the material 11, the composition is graded in the direction parallel to the front and back surfaces as well as in the plate thickness direction, and the composition is graded two-dimensionally.
このため材料11の端部は金属13が100％となっている
ので、金属の構造材やこの材料11同志で端部11cの溶接
による接合ができる。For this reason, since the metal 13 is 100% at the end of the material 11, the end 11c can be joined by welding the metal structural material and the material 11 together.
次に、第２図に示す材料の端部接合処理構造20では、
接合対象となる材料21を均一組成のセラミックス22とし
た場合である。Next, in the material end bonding structure 20 shown in FIG.
This is a case where the material 21 to be joined is a ceramic 22 having a uniform composition.
このようなセラミックス22だけの材料21の端部21aを
溶接によって接合できるようにするため、接合端部方向
にセラミックス22と金属23とで組成を連続的に変化させ
て傾斜化し、最外端部が金属23となるようにしてある。In order to be able to join such an end 21a of the material 21 composed of only the ceramics 22 by welding, the composition is continuously changed between the ceramics 22 and the metal 23 in the direction of the joining end to be inclined, and the outermost end is formed. Is metal 23.
すなわち、この材料21では、端部方向、長さ方向Ｘに
ついてのみ一次元的に組成が傾斜化されている。That is, in the material 21, the composition is one-dimensionally inclined only in the end direction and the length direction X.
このため材料21の端部21aは金属23が100％となってい
るので、金属の構造材やこの材料21同士で端部21aの溶
接による接合ができる。For this reason, since the metal 23 is 100% in the end 21a of the material 21, the metal 21 and the material 21 can be joined by welding the end 21a.
次に、このように材料11,21の接合端部を金属100％の
組成となるように処理する材料の端部接合処理方法の一
実施例について、第３図に示す工程にしたがって説明す
る。Next, an embodiment of a method of joining the ends of the materials 11 and 21 so as to have a composition of 100% metal will be described with reference to the steps shown in FIG.
この材料の端部接合処理方法は、第１図で説明した傾
斜機能を備えた材料11に適用したものであり、セラミッ
クス12の原料粉末31と、金属13の原料粉末32と、バイン
ダー33とが用意される。This method of joining the ends of the material is applied to the material 11 having the inclination function described in FIG. 1, and the raw material powder 31 of the ceramics 12, the raw material powder 32 of the metal 13, and the binder 33 Be prepared.
そして、２つの原料粉末31,32とバインダー33がそれ
ぞれが組成比調整弁34で組成比が調整され混合ノズル35
で混合されて金型36内に噴射充填される。この混合ノズ
ル35から金型36への原料粉末31,32の充填に際しては、
金型36がＸ−Ｙ方向に移動され、金型36の各部が所定の
２次元的に連続する組成変化となるように傾斜化する。Then, the composition ratio of the two raw material powders 31, 32 and the binder 33 is adjusted by the composition ratio adjustment valve 34, and the mixing nozzle 35
And injected and filled into the mold 36. When filling the raw material powders 31 and 32 into the mold 36 from the mixing nozzle 35,
The mold 36 is moved in the XY directions, and each part of the mold 36 is inclined so as to have a predetermined two-dimensionally continuous composition change.
こうして金型36に原料粉末31,32が充填去れた後、所
定の形状に加圧成形される。After the mold 36 is filled with the raw material powders 31 and 32, it is pressed into a predetermined shape.
最後に、加熱焼結が行われ、傾斜材料が完成する。こ
の加熱焼結に当たっては、均一加熱用の焼結炉とレーザ
ー加熱装置を組合わせた装置などを用い、原料粉末の組
成の傾斜化に合わせて温度勾配（温度傾斜）を付加した
状態で加熱するようにすることでそれぞれの組成の焼結
温度に保持することができる。Finally, heat sintering is performed to complete the gradient material. In this heat sintering, a device is used in which a sintering furnace for uniform heating and a laser heating device are combined, and heating is performed with a temperature gradient (temperature gradient) added in accordance with the gradient of the composition of the raw material powder. By doing so, the sintering temperature of each composition can be maintained.
したがって、傾斜機能材料であっても噴射充填法（混
合ノズルによる原料粉末の充填）と傾斜加熱法（均一加
熱用焼結炉とレーザー加熱装置による加熱）とを組合わ
せるようにすることで、接合端部を金属とした２次元的
傾斜化した材料を簡単に作ることができ、これらの材料
同士や金属の構造材などと既存の溶接法で接合すること
ができる。Therefore, even for a functionally graded material, joining is achieved by combining the injection filling method (filling of raw material powder with a mixing nozzle) and the gradient heating method (heating with a sintering furnace for uniform heating and a laser heating device). It is possible to easily produce a two-dimensionally inclined material having a metal end portion, and to join these materials to each other or to a metal structural material by an existing welding method.
次に、このような材料の端部接合処理が行われた耐熱
用の傾斜機能材料の具体的な応用例について、第４図に
より説明する。Next, a specific application example of the heat-resistant functionally graded material which has been subjected to the end joining process of such a material will be described with reference to FIG.
この傾斜機能材料41は、第１図は説明したように、表
面41aがセラミックス42とされ、裏面41bが金属43とさ
れ、中間層が連続的な組成変化で傾斜化されるととも
に、接合端部41cが金属43となるように２次元的に組成
が傾斜化されている。1, the front surface 41a is made of ceramics 42, the back surface 41b is made of metal 43, and the intermediate layer is graded by a continuous composition change. The composition is two-dimensionally graded so that 41c becomes metal 43.
そして、この傾斜機能材料41をプレートフィン44を介
して金属製の構造材45に接合する場合には、プレートフ
ィン44との接合は傾斜機能材料41の裏面41bの金属43部
分で行なうことができ、既存のろう付けや拡散接合法な
どで接合できる。さらに、傾斜機能材料41の接合端部41
cについても最外端部が金属43となっているので、構造
材46ともレーザー溶接法や電子ビーム溶接法などの既存
の溶接法で簡単に接合することができる。When the functionally graded material 41 is bonded to the metal structural material 45 via the plate fins 44, the bonding with the plate fins 44 can be performed at the metal 43 of the back surface 41b of the functionally graded material 41. It can be joined by existing brazing or diffusion joining methods. Further, the joining end 41 of the functionally graded material 41
Since the outermost end of c is also a metal 43, it can be easily joined to the structural material 46 by an existing welding method such as a laser welding method or an electron beam welding method.
なお、傾斜機能材料41同士の端部41cを接合する場合
にもそれぞれの端部41cが金属43であるので、既存の溶
接法で接合することができる。When joining the end portions 41c of the functionally graded materials 41, the respective end portions 41c are made of the metal 43, so that they can be joined by an existing welding method.
そして、接合端部41c付近はセラミックス42と金属43
の組成が連続的に変化するように傾斜化してあるので、
単純な張り合わせ材のように熱応力などによって剥がれ
るようなことがない。In the vicinity of the joining end 41c, the ceramic 42 and the metal 43
Since the composition is graded to change continuously,
It does not peel off due to thermal stress or the like unlike a simple bonding material.
なお、上記実施例では、混合ノズルによって原料粉末
を充填して成形する場合で説明したが、これに限らず、
他の充填法で組成を傾斜化するようにしたり、組成の変
化が段階的となるが、層状に積層するようにすることも
可能である。Note that, in the above-described embodiment, the case where the raw material powder is filled and molded by the mixing nozzle has been described.
The composition may be graded by another filling method, or the composition may be changed stepwise, but it is also possible to laminate the layers.
また、この発明の要旨を変更しない範囲で各構成要素
に変更を加えても良いことは言うまでもない。Also, it goes without saying that changes may be made to each component without departing from the spirit of the present invention.
［発明の効果］ 以上、実施例とともに具体的に説明したようにこの発
明の材料の端部接合処理構造によれば、セラミックスや
セラミックスと金属の傾斜機能材料など溶接ができない
材料であっても接合端部方向の組成を変化させ、最外端
部を金属組成とするようにしているので、この金属組成
部分を利用することで既存の溶接法による接合が可能と
なった。[Effects of the Invention] As described above in detail with the embodiments, according to the end joining structure of the material of the present invention, even materials that cannot be welded, such as ceramics and functionally gradient materials of ceramics and metal, can be joined. Since the composition in the end direction is changed so that the outermost end is made of a metal composition, joining by the existing welding method becomes possible by using this metal composition portion.
したがって、表面がセラミックスで裏面が金属とされ
厚さ方向に組成が傾斜されている傾斜機能材料等であっ
ても接合端部方向にも組成を傾斜化して最外端部を金属
組成にでき、既存の溶接法による接合ができる。Therefore, even in the case of a functionally graded material or the like in which the front surface is made of ceramics and the back surface is made of metal and the composition of which is inclined in the thickness direction, the composition can also be graded in the direction of the joining end and the outermost end can be made of a metal composition, Joining by existing welding method is possible.
また、この発明の材料の端部接合処理方法によれば、
粉末冶金法を利用して原料粉末の組成に傾斜を与えるよ
うにして充填成形し、この後、加熱焼結するようにした
ので、接合端部方向の組成を変化させ、最外端部を金属
組成とすることが簡単にでき、この金属組成部分を利用
することで既存の溶接法による接合が可能となった。Also, according to the method for bonding the ends of the material of the present invention,
The powder metallurgy method was used to fill and mold the raw material powder so as to give a gradient to the composition, and then heat sintering.The composition in the joining end direction was changed, and the outermost end was made of metal. The composition can be easily made, and by using this metal composition portion, joining by the existing welding method has become possible.
したがって、例えばセラミックスやセラミックスと金
属の傾斜機能材料など溶接ができない材料であっても接
合端部方向の組成を変化させ、最外周端部を金属組成に
処理することができ、既存の溶接法による接合できる。Therefore, even for materials that cannot be welded, such as ceramics or functionally graded materials of ceramics and metals, the composition in the joint end direction can be changed, and the outermost end can be treated to a metal composition. Can be joined.
第１図はこの発明の材料の端部接合処理構造の一実施例
にかかり、傾斜機能材料に適用した場合の概略構成図で
ある。 第２図はこの発明の材料の端部接合処理構造の一実施例
にかかり、セラミックスに適用した場合の概略構成図で
ある。 第３図はこの発明の材料の端部接合処理方法の一実施例
にかかり、傾斜機能材料に適用した場合の概略工程図で
ある。 第４図はこの発明により材料の端部に接合処理を施した
場合の具体的な接合例の説明図である。 10,20:材料の端部接合処理構造、11,21:材料、11a:表
面、11b:裏面、11c,21a:接合端部、12,22:セラミック
ス、13,23:金属、 31:原料粉末（セラミックス）、32:原料粉末（金属）、
33:バインダー、34:組成比調整弁、35:混合ノズル、36:
金型、 41:傾斜機能材料、42:セラミックス、43:金属、44:プレ
ートフィン、45,46:構造材（金属）。FIG. 1 is a schematic diagram showing an embodiment of a material end joining structure according to the present invention, which is applied to a functionally graded material. FIG. 2 is a schematic structural view of an embodiment of a material end joining structure according to the present invention, which is applied to ceramics. FIG. 3 is a schematic process diagram showing an embodiment of a method for bonding an end portion of a material according to the present invention, which is applied to a functionally gradient material. FIG. 4 is an explanatory view of a specific joining example in a case where a joining process is performed on an end portion of a material according to the present invention. 10,20: Material end joining structure, 11, 21: Material, 11a: Front surface, 11b: Back surface, 11c, 21a: Joining end, 12, 22: Ceramics, 13, 23: Metal, 31: Raw material powder (Ceramics), 32: Raw material powder (metal),
33: binder, 34: composition ratio adjustment valve, 35: mixing nozzle, 36:
Mold, 41: functionally graded material, 42: ceramics, 43: metal, 44: plate fin, 45, 46: structural material (metal).
───────────────────────────────────────────────────── フロントページの続き (72)発明者 渡辺 龍三 宮城県仙台市青葉区荒巻字青葉（番地な し） 東北大学工学部材料加工学科 (72)発明者 川崎 亮 宮城県仙台市青葉区荒巻字青葉（番地な し） 東北大学工学部材料加工学科 (72)発明者 新野 正之 宮城県仙台市若林区南小泉１―３―７ (72)発明者 結城 正弘 神奈川県横浜市磯子区新中原町１番地 石川島播磨重工業株式会社技術研究所内 (72)発明者 村山 敏一 神奈川県横浜市磯子区新中原町１番地 石川島播磨重工業株式会社技術研究所内 (72)発明者 入沢 敏夫 神奈川県横浜市磯子区新中原町１番地 石川島播磨重工業株式会社技術研究所内 (56)参考文献 特開 平１−152284（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) B22F 7/00 - 7/08 C04B 37/00 - 37/04──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Ryuzo Watanabe Aoba-maki Aoba, Aoba-ku, Aoba-ku, Sendai City, Miyagi Prefecture (72) Department of Materials Processing, Faculty of Engineering, Tohoku University (72) Inventor Ryo Kawasaki Aoba-maki Aoba, Aoba-ku, Aoba-ku, Miyagi Prefecture (No address) Department of Materials Processing, Faculty of Engineering, Tohoku University (72) Inventor Masayuki Shinno 1-3-7, Minamikoizumi, Wakabayashi-ku, Sendai, Miyagi Prefecture (72) Inventor Masahiro Yuki 1 Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Kanagawa Ishikawajima Harima Heavy Industries Co., Ltd. (72) Inventor Toshikazu Murayama 1 Kanagawa Prefecture, Yokohama-shi Isogo-ku, Shin-Nakahara-cho Ishikawajima Harima Heavy Industries Co., Ltd. (72) Inventor Toshio Irisawa, Kanagawa Prefecture Isogo-ku, Shin-Nakahara-cho, Yokohama-shi No. 1 Ishikawajima-Harima Heavy Industries, Ltd. Technical Research Institute (56) References JP-A-1-152284 (JP, A) (58) Survey The field (Int.Cl. 6, DB name) B22F 7/00 - 7/08 C04B 37/00 - 37/04
Claims (2)
間層を配置した傾斜機能材料の当該組成変化方向と交差
する接合端部方向の組成を変化して最も外側端部が溶接
可能な組成にしてあること特徴とする材料の端部接合処
理構造。1. An outermost end of a functionally graded material in which an intermediate layer having a continuously changed composition is arranged between different kinds of materials can be welded by changing a composition in a joining end direction crossing the composition changing direction. An end joining structure for a material, characterized in that the material has an appropriate composition.
斜を与えて最外端部が溶接可能な原料粉末となるように
充填成形した後、加熱焼結するようにしたことを特徴と
する材料の端部接合処理方法。2. The method according to claim 1, wherein a plurality of raw material powders are filled and molded so that the composition of the plurality of raw material powders is inclined in the direction of the joining end so that the outermost end becomes a weldable raw material powder, and then heat-sintered. End joining method of the material to be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1284268A JP2798279B2 (en) | 1989-10-31 | 1989-10-31 | End joining structure of material and end joining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1284268A JP2798279B2 (en) | 1989-10-31 | 1989-10-31 | End joining structure of material and end joining method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03146607A JPH03146607A (en) | 1991-06-21 |
| JP2798279B2 true JP2798279B2 (en) | 1998-09-17 |
Family
ID=17676330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1284268A Expired - Lifetime JP2798279B2 (en) | 1989-10-31 | 1989-10-31 | End joining structure of material and end joining method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2798279B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015094720A1 (en) * | 2013-12-20 | 2015-06-25 | United Technologies Corporation | Gradient sintered metal preform |
| JP6687887B2 (en) * | 2016-02-18 | 2020-04-28 | セイコーエプソン株式会社 | Ceramic parts and three-dimensional manufacturing method of ceramic parts |
| CN113996792A (en) * | 2021-10-15 | 2022-02-01 | 中国原子能科学研究院 | Gradient material and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01152284A (en) * | 1987-12-10 | 1989-06-14 | Toshiba Corp | Formation of ceramic layer |
-
1989
- 1989-10-31 JP JP1284268A patent/JP2798279B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03146607A (en) | 1991-06-21 |
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