JPH02122005A - Manufacturing method of multilayer aluminum alloy material - Google Patents

Manufacturing method of multilayer aluminum alloy material

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Publication number
JPH02122005A
JPH02122005A JP27237688A JP27237688A JPH02122005A JP H02122005 A JPH02122005 A JP H02122005A JP 27237688 A JP27237688 A JP 27237688A JP 27237688 A JP27237688 A JP 27237688A JP H02122005 A JPH02122005 A JP H02122005A
Authority
JP
Japan
Prior art keywords
aluminum alloy
powder
alloy material
bonding
layers
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
Application number
JP27237688A
Other languages
Japanese (ja)
Inventor
Kiyoaki Akechi
明智 清明
Shigeki Ochi
越智 茂樹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP27237688A priority Critical patent/JPH02122005A/en
Publication of JPH02122005A publication Critical patent/JPH02122005A/en
Pending legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、粉末鍛造を利用した複層アルミニウム合金材
料の製造法に関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for manufacturing a multilayer aluminum alloy material using powder forging.

〔従来の技術〕[Conventional technology]

2種以上の金属粉末又は合金粉末を成形−焼結して製造
した複層材料としては、鉄系又は銅系に限って実用化さ
れ含油軸受等が生産されている。
Multi-layer materials manufactured by molding and sintering two or more metal powders or alloy powders have been put to practical use only in iron-based or copper-based materials, and oil-impregnated bearings and the like have been produced.

一方、アルミニウム合金粉末、特に急冷凝固アルミニウ
ム合金粉末は通常の成形−焼結が困難であるため、C工
P等で固めた粉末成形体を熱間押出により緻密化し固化
する方法が採られている。
On the other hand, since aluminum alloy powder, especially rapidly solidified aluminum alloy powder, is difficult to be molded and sintered in the usual way, a method is adopted in which a powder compact compacted with C-P, etc. is densified and solidified by hot extrusion. .

急冷凝固法によれば、通常のアルミニウム合金では得ら
れなかった珪素や鉄等を多量に含有する高合金組成のア
ルミニウム合金粉末が製造できるので、これを上記熱間
押出することにより従来をこない特性(例えば、低熱膨
張率や高耐熱性)のアルミニウム合金材料が得られ、既
にカーエアコン用ロータリーコンプレッサーのベーン材
として実用化されている。
According to the rapid solidification method, it is possible to produce aluminum alloy powder with a high alloy composition containing large amounts of silicon and iron, which cannot be obtained with ordinary aluminum alloys. An aluminum alloy material with low thermal expansion coefficient and high heat resistance, for example, has been obtained and has already been put into practical use as a vane material for rotary compressors for car air conditioners.

又、かかる熱間押出法を利用してアルミニウム合金粉末
から製造した複層アルミニウム合金材料は公知である。
Furthermore, multilayer aluminum alloy materials manufactured from aluminum alloy powder using such hot extrusion methods are known.

しかし、熱間押出法では複雑な形状又は優れた機械的特
性の複層アルミニウム合金材料を得ることが困難であっ
た。
However, it has been difficult to obtain a multilayer aluminum alloy material with a complex shape or excellent mechanical properties using the hot extrusion method.

そこで、複雑な形状又は優れた機械的特性の複層アルミ
ニウム合金材料を得たい場合には熱間押出性以外の方法
、例えばアルミニウム合金を鍛造した後接合する方法で
製造されていた。即ち、複層に組合せるべき各合金部分
を鍛造により別々に複雑形状に製造し、これらを後工程
で接合する方法である。この場合の接合方法としてはH
PやH工Pによる拡散接合、機械的接合、摩擦接合、焼
き嵌め接合、ロウ付は接合等を用いていた。
Therefore, when it is desired to obtain a multilayer aluminum alloy material with a complicated shape or excellent mechanical properties, a method other than hot extrusion has been used, such as a method in which aluminum alloys are forged and then joined. That is, this is a method in which each alloy part to be combined into a multilayer is manufactured separately into a complex shape by forging, and these parts are joined in a later process. In this case, the joining method is H
Diffusion bonding, mechanical bonding, friction bonding, shrink fitting bonding, brazing bonding, etc. using P or H process P were used.

(発明が解決しようとする課題〕 上記のように熱間押出性以外の方法で複層アルミニウム
合金材料を@造する場合には、−旦製造した各合金部分
を鍛造により■錐形状に成形し、更に後工程で接合する
必要があった。
(Problems to be Solved by the Invention) When producing a multilayer aluminum alloy material by a method other than hot extrusion as described above, each alloy part produced is first formed into a conical shape by forging. , it was necessary to further join them in a post-process.

しかも、その接合方法にも各種の欠点や制限が存在した
。例えば、HPやHXPによる拡散接合では接合強度が
低く、そこで接合強度を高め信頼性をもたすためには長
時間の処理が必要となり、生産性に劣る欠点があった。
Moreover, the bonding method also has various drawbacks and limitations. For example, diffusion bonding using HP or HXP has a low bonding strength, and requires a long processing time in order to increase the bonding strength and provide reliability, which has the disadvantage of poor productivity.

機械的接合及び煩さ嵌め接合では形状や寸法に大きな制
限が加わる欠点があった。又、ロウ付は接合では、アル
ミニウム合金は表面のアルミナ膜のためにロウ流れやロ
ウの凋れ性が悪いので、良好な接合を得ることは国領t
であった。摩擦接合はアルミニウム合金には有効な方法
であるが、形状に制限があるうえ、各形状及び寸法ごと
に対応した装置を必要とし、更に後工程としてパリ取り
工程や焼鈍工程を付加する必要がある等の欠点があった
Mechanical bonding and cumbersome fitting bonding have the drawback of imposing large restrictions on shape and dimensions. In addition, when brazing is used for joining, obtaining a good joint is a national priority because aluminum alloy has poor solder flow and wax decay due to the alumina film on the surface.
Met. Friction welding is an effective method for aluminum alloys, but it is limited in shape, requires equipment suitable for each shape and size, and requires additional deburring and annealing processes as post-processes. There were drawbacks such as.

本発明はかかる従来の小情に鑑み、アルミニウム合金粉
末から複層アルミニウム合金材料を直接、従って後工程
として接合工程を要することなく、生産性よく製造する
方法を提供することを目的とする。
In view of the conventional circumstances, it is an object of the present invention to provide a method for manufacturing a multilayer aluminum alloy material directly from aluminum alloy powder with high productivity, without requiring a joining process as a post-process.

〔課題を解決するための手段〕[Means to solve the problem]

上記の目的を解決するため、本発明の複層アルミニウム
合金材料の調造方法では粉末鍛冶法を応用し、粉末から
アルミニウム合位を製造すると同時にこれを複層に形成
する。
In order to solve the above object, the method for preparing a multi-layer aluminum alloy material of the present invention applies a powder forging method to produce an aluminum composite from powder and simultaneously form it into a multi-layer.

このための手段としては; (1)2種以上のアルミニウム合ぐ)粉末を2層以上に
成形するか、又は2種以上のアルミニウム合金粉末を別
々に成形して2層以上に重ね合せ、次にこれを熱間で粉
末鍛造する方法、又は (211種以上のアルミニウム合金粉末とアルミニウム
合金材とを2層以上に成形するか、又はアルミニウム合
金粉末を成形してアルミニウム合金材と2層以上に重ね
合せ、次にこれを熱間で鍛造する方法がある。
The means for this purpose are: (1) Molding two or more types of aluminum alloy powder into two or more layers, or molding two or more types of aluminum alloy powder separately and stacking them into two or more layers, and then (211 types or more of aluminum alloy powder and aluminum alloy material are formed into two or more layers, or aluminum alloy powder is formed into two or more layers with aluminum alloy material.) There is a method of stacking them together and then hot forging them.

アルミニウム合金粉末は急冷凝固法により得られた、例
えば冷却速度100 C/see以上で製造した粒径3
50μm以下のfi!合金粉末であっても良い。
The aluminum alloy powder is obtained by a rapid solidification method, for example, with a particle size of 3 produced at a cooling rate of 100 C/see or more.
fi of less than 50 μm! It may also be an alloy powder.

かかる1合金粉末としては、10〜42市岱%のSiを
含むもの、このSlに加え0.1〜10重量%の(Eu
、Mg、 Mns Fe、 Ni、COを含むもの、又
は4〜10重′″;4%のMn、 Fe、 Ni、Co
を含むもの等がある。
Examples of such 1 alloy powder include one containing 10 to 42 weight percent Si, and one containing 0.1 to 10 weight percent (Eu) in addition to this Sl.
, Mg, Mns Fe, Ni, CO, or 4-10%; 4% Mn, Fe, Ni, Co
There are some that include.

これらのAt合金粉末には、用途に応じて自己潤滑性粒
子及び硬質粒子の両方又は片方を混合して使用すること
が出来る。自己潤滑性粒子としては黒鉛、カーボン、B
N、 Mo3  等があり、その混合舟は2〜10体積
%が好ましい。又、硬質粒子としては5inSSi N
 、 TiC,kl O、SiO、Zr01Mg01W
C等があり、その混合計は0.5〜15体積%が好まし
い。
These At alloy powders can be used in combination with both or one of self-lubricating particles and hard particles depending on the purpose. Self-lubricating particles include graphite, carbon, B
There are N, Mo3, etc., and the mixture thereof is preferably 2 to 10% by volume. In addition, as hard particles, 5inSSiN
, TiC,klO,SiO,Zr01Mg01W
C, etc., and the mixing amount thereof is preferably 0.5 to 15% by volume.

又、これらの粉末は焼結を起させないように成形する必
要があり、そのための成形方法としては金型圧縮成形又
はC工Pが好ましい。
Further, these powders need to be molded so as not to cause sintering, and mold compression molding or C-processing is preferred as a molding method for this purpose.

〔作用〕[Effect]

前記した如く、複層に組合せるべき各k1重金属分を鍛
造法等により別々に製造し、これらを後工程で接合する
従来の方法では、ミクロな接合面は平滑であるから、接
合時に合金同志の相対的な移動が少なく、塑性変形度が
小さいので、接合強度が弱い。特に急冷凝固法による高
合金組成のAt合金粉末は変形能が小さいので大きな塑
性変形が不可能であり、接合強度も極端に弱くなる。
As mentioned above, in the conventional method in which each of the K1 heavy metals to be combined into a multilayer is manufactured separately by forging or the like and then joined in a later process, the micro-joint surfaces are smooth, so the alloys do not stick together during joining. Since there is little relative movement and the degree of plastic deformation is small, the joint strength is weak. In particular, At alloy powder with a high alloy composition produced by the rapid solidification method has a small deformability, so large plastic deformation is impossible, and the bonding strength becomes extremely weak.

又、11合金粉末に高融点のセラミック粒子を混合した
場合には接合時の拡散が少なくなるのでやはり接合強度
が極端に弱くなる。
Furthermore, when high melting point ceramic particles are mixed with the No. 11 alloy powder, diffusion during bonding is reduced, resulting in extremely weak bonding strength.

然るに本発明方法においては、粉末成形体を鍛造するこ
とによって大きな塑性変形を生じさせることができ、A
1合金粉末同志の相対的な動き及び摩耗により表面層の
AIO膜が破壊されて新生面が露出し、粒子同士の結合
が引き起されるのでP密で高強度の粉末鍛造A7合金が
得られる。この際、複層させるべき組成の異なる11合
金粉末の2層以上の粉末成形体(一体でも別体でも可)
同士又はかかる粉末成形体と合金材とを接せしめ、同時
に鍛造することによって、各層間の接合界面でも上記と
同様な粒子同士の結合が生じる結果、粉末鍛造による合
金化と同時に接合が完了して複層AI合金材料が得られ
る。
However, in the method of the present invention, large plastic deformation can be caused by forging the powder compact, and A
The AIO film on the surface layer is destroyed by the relative movement and abrasion of the 1-alloy powders, exposing a new surface, and bonding between the particles is induced, resulting in a P-dense, high-strength powder-forged A7 alloy. At this time, a powder compact with two or more layers of 11 alloy powders with different compositions (can be integrated or separate)
By bringing these powder compacts and alloy materials into contact with each other and forging them at the same time, the same bonding between particles as described above occurs at the bonding interface between each layer, so that the bonding is completed at the same time as alloying by powder forging. A multilayer AI alloy material is obtained.

上記の如く粉末鍛造により製造した本発明に係る複層A
1合金材料は、各会合部分を別々に製造した後接合した
従来の複層p−を合金材料に比較して接合強度が改善さ
れる。その理由は、粉末の場合には合金に比べて表面層
のA/ O膜が薄いので破壊されて新生面が出やすいこ
と、及び粉末鍛造では接合界面でのメタルフローが犬さ
くなり空孔や酸化物の残存を容易に取り除くことが出来
る為である。かかる接合強度の改善は、At合金粉末中
に難加工性のセラミック等の硬質粒子を含有する場合に
特に顕著である。
Multilayer A according to the present invention manufactured by powder forging as described above
1 alloy material has improved joint strength compared to a conventional multilayer p- alloy material in which each meeting portion is manufactured separately and then joined. The reason for this is that in the case of powder, the A/O film on the surface layer is thinner than that of alloy, so it is more likely to be destroyed and a new surface appears, and in powder forging, the metal flow at the joint interface is narrower, causing pores and oxidation. This is because the remaining material can be easily removed. Such improvement in bonding strength is particularly remarkable when the At alloy powder contains hard particles such as hard-to-process ceramics.

又、本発明方法は粉末鍛造によるので、製造すべさ複層
At合並相料の形状や寸法には殆ど制限がない利点もあ
る。
Furthermore, since the method of the present invention is based on powder forging, there is an advantage that there are almost no restrictions on the shape and dimensions of the multi-layered At mixed phase material to be manufactured.

〔実施例〕〔Example〕

実施例1 第1表のa % Gで示した急冷凝固法で製造した11
合金粉末を、金型を用いて夫々別々に圧縮成形すること
により直径50朋×厚さ15m+++の粉末成形体を作
成した。その後、各成形体を第1表に示す如く2又は3
層に重ね合せ、420Cに加熱して3打の熱間鍛造によ
り、直径60朋×厚さ2(1171(2層の場合)又は
3Q+++s(3層の場合)のディスク状の鍛造品を得
た。
Example 1 11 produced by the rapid solidification method indicated by a%G in Table 1
The alloy powders were compression-molded separately using a mold to create a powder compact with a diameter of 50 mm and a thickness of 15 m++. Thereafter, each molded body was
Layers were stacked on top of each other, heated to 420C, and hot forged three times to obtain a disc-shaped forged product with a diameter of 60mm x thickness of 2 (1171 (in the case of 2 layers) or 3Q+++s (in the case of 3 layers)). .

各鍛造品は厚さ方向に2層又は3Nからなり、光学iW
1.境で接合界面を観察したところ、空孔、亀裂、酸化
物の集積等は認められなかった。又、各鍛造品について
抗折力を測定した結果は第1表の通りであり、その各層
を構成するAt合金単体の中の最大の抗折力(各試料の
抗折力の後に0シて例記)とほぼ同等の値を示した。
Each forged product consists of two layers or 3N in the thickness direction, and optical iW
1. When the bonded interface was observed at the interface, no pores, cracks, or accumulation of oxides were observed. In addition, the results of measuring the transverse rupture strength of each forged product are shown in Table 1. Example) showed almost the same value.

第  1  表 実施例2 第2表のa〜bで示した組成のA/合金粉末及び合金材
(直径50關×厚さ15關)を用い、A1合金粉末は位
型で夫々圧縮成形することにより合金材と同一寸法の粉
末成形体とした。その後、各成形体及び合金材を第2表
に示す如く重ね合せ、実施例1と同一条件で熱間鍛造し
てディスク状の鍛造品を1liJ造した。
Table 1 Example 2 Using the A/alloy powder and alloy material (diameter 50 mm x thickness 15 mm) having the compositions shown in a to b in Table 2, the A1 alloy powder was compression molded in a mold. A powder compact with the same dimensions as the alloy material was obtained. Thereafter, each molded body and alloy material were stacked as shown in Table 2, and hot forged under the same conditions as in Example 1 to produce a disk-shaped forged product of 1liJ.

第  2  表 (ま1:)×・・試料9は比l数例である。Table 2 (Ma1:)×...Sample 9 is a ratio example.

本発明例の試料6〜8は外観的に亀裂や剥離等の発生が
なく、光学顕微鏡Gこよる接合面の観察でも空孔、亀裂
、酸化物の集積等は認められなかったが、比較例の試料
9では割れが発生した。
Samples 6 to 8 of the invention examples had no cracks or peeling in appearance, and no pores, cracks, or accumulation of oxides were observed when the joint surfaces were observed using an optical microscope G. Cracking occurred in sample 9.

実施例3 第3表に示すA1合金粉末及びA1合金粉末と他の粉末
(自己層滑性粒子又は硬質粒子〕との混合粉末を実施例
1と同様に圧縮成形し、その後書成形体を第3表に示す
如く重ね合せ、実施例1と同一条件で熱間鍛造してディ
スク状の鍛造品を製造した。
Example 3 A1 alloy powder shown in Table 3 and a mixed powder of A1 alloy powder and other powders (self-layered slippery particles or hard particles) were compression molded in the same manner as in Example 1, and then the molded body was They were stacked as shown in Table 3 and hot forged under the same conditions as in Example 1 to produce a disk-shaped forged product.

第  3  表 本発明例の試料10〜12は外観的に亀裂や剥離等の発
生がなく、光学顕微鏡による接合面の観察でも硬質粒子
等を含むにも拘らず空孔、亀裂、酸化物の集積等は認め
られず、接合は良好であった。
Table 3 Samples 10 to 12 of the invention examples have no appearance of cracks or peeling, and observation of the bonded surfaces using an optical microscope shows that although they contain hard particles, they do not show pores, cracks, or accumulation of oxides. No defects were observed, and the bonding was good.

比較のために、試料10と同じ粉末a及び粉末すの各熱
間押出体を重ね合せ、上記と同様の条件で鍛造したとこ
ろ、鍛造品には割れが発生し、光学顕微鏡により観察し
た結果、接合界面にも接合不良が見られた。
For comparison, hot extrusions of the same powder a and powder as sample 10 were stacked together and forged under the same conditions as above, but cracks occurred in the forged product, and as a result of observation with an optical microscope, Bonding defects were also observed at the bonding interface.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、粉末鍛造を利用するので従来に比較し
て接合強度が大さく信頼性の高い複層アルミニウム合金
材料を生産性よく製造することかでさる。
According to the present invention, since powder forging is used, it is possible to manufacture a multi-layer aluminum alloy material with high productivity and high bonding strength and high reliability compared to the conventional method.

しかも、原料粉末として急冷凝固法による珪累等の高添
加アルミニウム合金粉末、又はこれに硬質粒子や自己潤
滑性粒子を混合した粉末を使用できるので、従来にない
高機能性の複層アルミニウム合金材料を提供することが
出来る。
In addition, high-addition aluminum alloy powder such as silica produced by the rapid solidification method or powder mixed with hard particles or self-lubricating particles can be used as the raw material powder, making it possible to use a multi-layer aluminum alloy material with unprecedented high functionality. can be provided.

出願人  住友電気工業株式会社Applicant: Sumitomo Electric Industries, Ltd.

Claims (3)

【特許請求の範囲】[Claims] (1)2種以上のアルミニウム合金粉末を2層以上に成
形するか、又は2種以上のアルミニウム合金粉末を別々
に成形して2層以上に重ね合せ、次にこれを熱間で粉末
鍛造することを特徴とする複層アルミニウム合金材料の
製造法。
(1) Forming two or more types of aluminum alloy powder into two or more layers, or forming two or more types of aluminum alloy powder separately and stacking them into two or more layers, and then hot powder forging this. A method for producing a multi-layer aluminum alloy material, characterized by:
(2)1種以上のアルミニウム合金粉末とアルミニウム
合金材とを2層以上に成形するか、又はアルミニウム合
金粉末を成形してアルミニウム合金材と2層以上に重ね
合せ、次にこれを熱間で鍛造することを特徴とする複層
アルミニウム合金材料の製造法。
(2) Form one or more types of aluminum alloy powder and aluminum alloy material into two or more layers, or form aluminum alloy powder and overlap it with aluminum alloy material into two or more layers, and then hot A method for producing a multilayer aluminum alloy material, which is characterized by forging.
(3)アルミニウム合金粉末に、自己潤滑性粒子及び/
又は硬質粒子を混合することを特徴とする、請求項(1
)又は(2)記載の複層アルミニウム合金材料の製造法
(3) Aluminum alloy powder with self-lubricating particles and/or
or mixed with hard particles, claim (1)
) or the method for producing a multilayer aluminum alloy material according to (2).
JP27237688A 1988-10-28 1988-10-28 Manufacturing method of multilayer aluminum alloy material Pending JPH02122005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27237688A JPH02122005A (en) 1988-10-28 1988-10-28 Manufacturing method of multilayer aluminum alloy material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27237688A JPH02122005A (en) 1988-10-28 1988-10-28 Manufacturing method of multilayer aluminum alloy material

Publications (1)

Publication Number Publication Date
JPH02122005A true JPH02122005A (en) 1990-05-09

Family

ID=17513025

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27237688A Pending JPH02122005A (en) 1988-10-28 1988-10-28 Manufacturing method of multilayer aluminum alloy material

Country Status (1)

Country Link
JP (1) JPH02122005A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104646666A (en) * 2014-06-16 2015-05-27 广西梧州港德硬质合金制造有限公司 Sintering method for hard alloy blank

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104646666A (en) * 2014-06-16 2015-05-27 广西梧州港德硬质合金制造有限公司 Sintering method for hard alloy blank

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