JPH075936B2 - Method for manufacturing aluminum alloy composite structure - Google Patents
Method for manufacturing aluminum alloy composite structureInfo
- Publication number
- JPH075936B2 JPH075936B2 JP61053161A JP5316186A JPH075936B2 JP H075936 B2 JPH075936 B2 JP H075936B2 JP 61053161 A JP61053161 A JP 61053161A JP 5316186 A JP5316186 A JP 5316186A JP H075936 B2 JPH075936 B2 JP H075936B2
- Authority
- JP
- Japan
- Prior art keywords
- aluminum alloy
- composite structure
- composite
- iron
- ceramics
- 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.)
- Expired - Lifetime
Links
- 239000002131 composite material Substances 0.000 title claims description 41
- 229910000838 Al alloy Inorganic materials 0.000 title claims description 37
- 238000000034 method Methods 0.000 title claims description 32
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 229910045601 alloy Inorganic materials 0.000 claims description 12
- 239000000956 alloy Substances 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 238000005242 forging Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 238000013329 compounding Methods 0.000 claims description 2
- 238000000748 compression moulding Methods 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims 1
- 238000001556 precipitation Methods 0.000 claims 1
- 238000005304 joining Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000005219 brazing Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Forging (AREA)
- Powder Metallurgy (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ この発明は、部分的に耐摩耗性、靭性を要求されるアル
ミニウム合金製複合構造体の製造方法に係り、詳しくの
べると、少なくとも一部分が鉄系合金あるいはセラミッ
クスで複合されているアルミニウム合金製複合構造体の
製造方法に関するものである。Description: TECHNICAL FIELD The present invention relates to a method for manufacturing an aluminum alloy composite structure partially required to have wear resistance and toughness. The present invention relates to a method for manufacturing an aluminum alloy composite structure that is composited with a system alloy or ceramics.
＜従来の技術＞ 従来、部分的に耐摩耗性、靭性を要求される部品は全体
を鉄系合金で製造する場合が主である。<Prior Art> Conventionally, the parts that are partially required to have wear resistance and toughness are generally manufactured entirely from an iron-based alloy.
しかし、軽量化等の要求に応ずるために幾つかのアルミ
ニウム合金製複合構造体が実用化されている。However, some aluminum alloy composite structures have been put into practical use in order to meet the demand for weight reduction and the like.
そのようなアルミニウム合金製複合構造体の製造技術と
しては、 （１） 予め複合化される鉄系合金あるいはセラミック
スを型の中の所定位置にセットした後、アルミニウム合
金の溶湯を注入する方法（鋳造法）。The manufacturing technique of such an aluminum alloy composite structure is as follows: (1) A method of injecting a molten aluminum alloy after setting an iron-based alloy or ceramics to be composited in advance in a predetermined position in a mold (casting Law).
（２） 複合化される鉄系合金あるいはセラミックスを
アルミニウム合金の所定位置に圧入する方法（圧入
法）。(2) A method (press-fitting method) of press-fitting a composite iron-based alloy or ceramics into a predetermined position of an aluminum alloy.
（３） 複合化される鉄系合金あるいはセラミックスを
アルミニウム合金の所定位置に接着剤により接着させる
方法（接着法）。(3) A method of adhering the composite iron-based alloy or ceramics to a predetermined position of the aluminum alloy with an adhesive (adhesion method).
（４） 複合化される鉄系合金あるいはセラミックスを
アルミニウム合金の所定位置にろう剤を用いて接合させ
る方法（接合法）。(4) A method (joining method) of joining an iron-based alloy or ceramics to be composited to a predetermined position of an aluminum alloy using a brazing agent.
などが知られている。Are known.
＜発明が解決しようとする問題点＞ しかしながら、これらの方法には夫々次のような問題点
が指摘されている。<Problems to be Solved by the Invention> However, the following problems are pointed out in each of these methods.
即ち、（１） 鋳造法にて製造された複合構造体はアル
ミニウム合金の組成に制約があるため、高強度材が得ら
れない。アルミニウム合金と鉄系合金あるいはセラミッ
クスとの熱膨脹率の差で両者の界面に空隙が生じ、引け
巣などの欠陥ができる。That is, (1) since the composite structure manufactured by the casting method has a restriction on the composition of the aluminum alloy, a high strength material cannot be obtained. Due to the difference in coefficient of thermal expansion between the aluminum alloy and the iron-based alloy or ceramics, voids are formed at the interface between the two, and defects such as shrinkage cavities are generated.
（２） 圧入法による場合、一定の圧入代をもった精度
の高い加工が必要となるが、圧入面（界面）の清浄を維
持しておくことが難しく、圧入面が汚れる。(2) In the case of the press-fitting method, high-precision machining with a certain press-fitting margin is required, but it is difficult to keep the press-fitting surface (interface) clean, and the press-fitting surface becomes dirty.
（３） 接着法では充分な接着強度が得られないうえ、
高温での使用が難しい。(3) Adhesive method does not provide sufficient adhesive strength, and
Difficult to use at high temperature.
（４） 接合法ではアルミニウム合金と鉄系合金、ある
いはアルミニウム合金とセラミックスを充分な強度をも
たせて接合できるろう剤がなく、熱膨脹の差によって剥
離が起る。(4) In the joining method, there is no brazing agent capable of joining an aluminum alloy and an iron-based alloy, or an aluminum alloy and ceramics with sufficient strength, and peeling occurs due to the difference in thermal expansion.
このため、これらの方法で製造された複合構造体は内燃
機関などの苛酷な条件下では被複合材の脱離などの欠点
があった。Therefore, the composite structure manufactured by these methods has a drawback such as desorption of the composite material under severe conditions such as an internal combustion engine.
＜問題点を解決するための手段＞ この発明は上記した従来の欠点を解消しうるアルミニウ
ム合金製複合構造体を得るべく検討の結果、なし得たも
のである。<Means for Solving Problems> The present invention has been completed as a result of investigations to obtain an aluminum alloy composite structure capable of solving the above-mentioned conventional drawbacks.
即ち、この発明は、耐摩耗性、靭性にすぐれた鉄系合金
またはセラミックスと結晶粒および析出粒サイズが20μ
ｍ以下であり、常温における引張強度が40kg/mm2以上、
ヤング率9000kg/mm2以上、熱膨脹率が19×10-6/℃以下
であるアルミニウム合金からなる複合構造体の製造方法
において、鉄系合金またはセラミックスの被複合材を予
め充填した金型内にアルミニウム合金粉末を供給した
後、圧縮成形鍛造加工と複合化を同時に行なうことを特
徴とするアルミニウム合金製複合構造体の製造方法であ
る。That is, the present invention is an iron-based alloy or ceramics having excellent wear resistance and toughness, and a grain size of 20μ
m or less, tensile strength at room temperature is 40 kg / mm 2 or more,
In a method of manufacturing a composite structure made of an aluminum alloy having a Young's modulus of 9000 kg / mm 2 or more and a coefficient of thermal expansion of 19 × 10 -6 / ° C or less, a mold pre-filled with a composite material of an iron-based alloy or ceramics is used. A method for producing an aluminum alloy composite structure, characterized in that, after the aluminum alloy powder is supplied, compression molding forging and compounding are performed simultaneously.
＜作用＞ 複合される鉄系合金あるいはセラミックスとアルミニウ
ム合金とを用いて複合構造体を得る場合、鍛造法によれ
ば塑性変形によりアルミニウム合金の新しくあらわれた
活性面が被複合材に直接に接することになり、他の接合
法に比べて密着性の点ですぐれている。<Operation> When a composite structure is obtained using an iron alloy or ceramics to be composited and an aluminum alloy, according to the forging method, the newly exposed active surface of the aluminum alloy is in direct contact with the composite material due to plastic deformation. And is superior in adhesiveness to other joining methods.
アルミニウム合金の必要特性としては、外部から摩擦衡
撃を受ける被複合体の緩みや脱離またはアルミニウム合
金自体の変形が生じないとう必要性から、ある程度以上
の強度や剛性および被複合材との熱膨脹率の差が少ない
ことが必要である。The necessary properties of aluminum alloys are that the composite to be subjected to friction strike from the outside does not loosen or come off, or the aluminum alloy itself does not deform, so strength and rigidity above a certain level and the coefficient of thermal expansion with the composite are required. It is necessary that the difference between
特にこのようなアルミニウム合金製複合構造体が内燃機
関の部品等に用いられる場合、従来法の鋳造等によって
製造されるアルミニウム合金では強度が不足する。そこ
で急冷法によって過飽和に合金元素を添加することが可
能であり、その結果急冷による結晶粒の微細化、偏析の
ない均一組織を有する粉末治金法により製造した高強度
アルミニウム合金が必要となるのである。In particular, when such an aluminum alloy composite structure is used as a component of an internal combustion engine, the aluminum alloy manufactured by conventional casting or the like lacks strength. Therefore, it is possible to add alloying elements to supersaturation by the quenching method, and as a result, it is necessary to have a high-strength aluminum alloy manufactured by the powder metallurgy method that has a uniform structure without grain refinement and segregation by quenching. is there.
この場合、高強度アルミニウム合金の原料粉末の冷却速
度は102℃/sec、好ましくは103℃/sec以上が望ましい。
これは102℃/sec以下では充分な急冷の効果が得られ
ず、結晶の微細化や固溶強化がはかれないためである。In this case, the cooling rate of the raw material powder of the high strength aluminum alloy is 10 2 ° C / sec, preferably 10 3 ° C / sec or more.
This is because a sufficient quenching effect cannot be obtained at 10 2 ° C / sec or less, and the grain refinement and solid solution strengthening cannot be achieved.
またアルミニウム合金の常温における引張強度を40kg/m
m2以上とするのは、被複合材の受ける摩擦力、衝撃に耐
えるため、従来の鋳造アルミニウム合金では達成できな
かった鋳鉄レベルが必要となるからである。The tensile strength of aluminum alloy at room temperature is 40 kg / m.
The reason for setting m 2 or more is that the cast iron level, which cannot be achieved by the conventional cast aluminum alloy, is required in order to withstand the frictional force and impact of the composite material.
さらにアルミニウム合金のヤング率を9000kg/mm2以上と
したのは、この発明による複合構造体を断続的あるいは
連続的な衝撃荷重あるいは引張り、圧縮応力を受けるよ
うな部品として適用しようとする場合、ヤング率が9000
kg/mm2より低い部品形状によっては本体を構成するアル
ミニウム合金部に変形、ヘタリが生じる恐れがあるため
である。Furthermore, the Young's modulus of the aluminum alloy is set to 9000 kg / mm 2 or more because the composite structure according to the present invention has a Young's modulus which is to be applied when it is subjected to intermittent or continuous impact load or tensile or compressive stress. Rate 9000
This is because, depending on the shape of parts lower than kg / mm 2, the aluminum alloy part forming the main body may be deformed or settled.
熱膨脹率は、被複合材のそれとあまり差が大きいと、熱
サイクルを受けたとき、脱離するためである。実質的に
は鋳造アルミニウム合金の限界である19×10-6/℃であ
れば問題はなく、従って19×10-6/℃以下としたもので
ある。This is because if the coefficient of thermal expansion has a large difference from that of the material to be composited, it will desorb when subjected to a thermal cycle. Substantially is not a problem as long as 19 × 10 -6 / ℃ the limit of cast aluminum alloy, thus is obtained by a 19 × 10 -6 / ℃ or less.
＜実施例＞ 以下、実施例によりこの発明を説明する。<Example> Hereinafter, the present invention will be described with reference to an example.
下記第１表に示すような特性を有するアルミニウム合金
１とSCr材２とを用いて夫々第１図に示すような複合構
造体Ａを第２表に示す方法で製造した。A composite structure A as shown in FIG. 1 was manufactured by using the aluminum alloy 1 and the SCr material 2 having the properties shown in Table 1 below by the method shown in Table 2.
上記で製造した複合構造体を試料として常温から250℃
までの加熱、冷却の200サイクルの熱履歴を各試料に与
えた。 The composite structure manufactured above is used as a sample from room temperature to 250 ° C
Each sample was given a thermal history of 200 cycles of heating and cooling up to.
その後これらの試料Ａ′について、第２図に示す方法で
耐衝撃テストを実施し、被複合材の脱離、緩みの生じな
かったものについては第３図に示す要領で耐摩擦テスト
を行なった。After that, an impact resistance test was carried out on these samples A'by the method shown in FIG. 2, and a friction resistance test was carried out in the manner shown in FIG. 3 for those in which the composite material did not come off or come loose. .
その結果は第３表に示した。The results are shown in Table 3.
上表からこの発明の鍛造加工による複合構造体がすぐれ
ていることが認められた。 From the above table, it was confirmed that the forged composite structure of the present invention was excellent.
また、他の実施例としてAl−25Si−4Cu−1Mgの組成を有
するアルミニウム合金粉末の圧粉体３および成形体（押
出体）４を用いてSCr材２との複合化をこの発明の方法
により実施して第４図乃至第７図に示すような種々の形
状の複合構造体を得た。Further, as another embodiment, the composite with the SCr material 2 is formed by using the green compact 3 of the aluminum alloy powder having the composition of Al-25Si-4Cu-1Mg and the molded body (extruded body) 4 by the method of the present invention. By carrying out, composite structures having various shapes as shown in FIGS. 4 to 7 were obtained.
なお第８図は第４図に示す形状の複合構造体を得る際の
工程図、第９図は第５図の形状の複合構造体を得る場合
の工程図を示したものであり、５は上型、６は下型であ
る。FIG. 8 is a process drawing for obtaining the composite structure having the shape shown in FIG. 4, FIG. 9 is a process drawing for obtaining the composite structure having the shape shown in FIG. 5, and 5 is Upper mold and 6 are lower molds.
＜発明の効果＞ この発明は上述したように部分的に耐摩耗性、靭性など
を必要とするアルミニウム合金製複合構造体を鍛造法に
て複合化することにより、従来法では得られなかった複
合強度を持たせることができ、粉末治金法により製造さ
れた高強度アルミニウム合金を用いることと併せて苛酷
な条件下での使用に耐えうる従来にない複合構造体を得
ることができたのである。<Effects of the Invention> As described above, according to the present invention, a composite structure made of an aluminum alloy partially required to have wear resistance, toughness, etc. is compounded by a forging method, and thus a composite not obtained by a conventional method. In addition to being able to have strength, and using a high-strength aluminum alloy manufactured by the powder metallurgy method, we were able to obtain an unprecedented composite structure that could withstand use under severe conditions. .
第１図はこの発明の複合構造体の一例を示す説明図、第
２図は複合構造体の衝撃テストの状態を示す説明図、第
３図は同じく耐摩擦テストの状態を示す説明図、第４図
乃至第７図は夫々この発明の方法で得た複合構造体の他
の実施例を示す形状状態図、第８図は第４図に示す形状
の複合構造体を得る工程図、第９図は第５図に示す形状
の複合構造体を得る工程図である。FIG. 1 is an explanatory view showing an example of the composite structure of the present invention, FIG. 2 is an explanatory view showing a state of an impact test of the composite structure, and FIG. 3 is an explanatory view showing a state of a friction resistance test of the same. 4 to 7 are shape state diagrams showing other embodiments of the composite structure obtained by the method of the present invention, respectively, and FIG. 8 is a process diagram for obtaining the composite structure having the shape shown in FIG. 4, and FIG. The drawing is a process drawing for obtaining the composite structure having the shape shown in FIG.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭59−157202（ＪＰ，Ａ) 特開 昭60−145349（ＪＰ，Ａ) 堂山昌男，山本良一編「材料テクノロジ ー17，複合材料」東京大学出版会，昭59− 10−１発行，Ｐ．92 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 59-157202 (JP, A) JP 60-145349 (JP, A) Masao Doyama, Ryoichi Yamamoto "Material Technology 17, Composite Materials" Tokyo University Press, published by Sho 59-10-1, P. 92
Claims (1)
セラミックスと結晶粒および析出粒サイズが20μｍ以下
であり、常温における引張強度が40kg/mm2以上、ヤング
率9000kg/mm2以上、熱膨脹率が19×10-6/℃以下である
アルミニウム合金からなる複合構造体の製造方法におい
て、鉄系合金またはセラミックスの被複合材を予め充填
した金型内にアルミニウム合金粉末を供給した後、圧縮
成形鍛造加工と複合化を同時に行なうことを特徴とする
アルミニウム合金製複合構造体の製造方法。1. An iron-based alloy or ceramic having excellent wear resistance and toughness, a crystal grain size and a precipitation grain size of 20 μm or less, a tensile strength at room temperature of 40 kg / mm 2 or more, a Young's modulus of 9000 kg / mm 2 or more, In the method for manufacturing a composite structure made of an aluminum alloy having a thermal expansion coefficient of 19 × 10 -6 / ° C. or less, after supplying the aluminum alloy powder into a mold prefilled with a composite material of an iron-based alloy or ceramics, A method for producing a composite structure made of an aluminum alloy, characterized in that compression molding forging and compounding are performed simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61053161A JPH075936B2 (en) | 1986-03-11 | 1986-03-11 | Method for manufacturing aluminum alloy composite structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61053161A JPH075936B2 (en) | 1986-03-11 | 1986-03-11 | Method for manufacturing aluminum alloy composite structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62211305A JPS62211305A (en) | 1987-09-17 |
| JPH075936B2 true JPH075936B2 (en) | 1995-01-25 |
Family
ID=12935129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61053161A Expired - Lifetime JPH075936B2 (en) | 1986-03-11 | 1986-03-11 | Method for manufacturing aluminum alloy composite structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH075936B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01100210A (en) * | 1987-10-14 | 1989-04-18 | Fuji Heavy Ind Ltd | Manufacture of aluminum forged product |
| CN114516200B (en) * | 2020-11-18 | 2025-10-21 | 中国电力科学研究院有限公司 | A laminated aluminum-based composite plate for power connection fittings and a preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59157202A (en) * | 1983-02-23 | 1984-09-06 | Sumitomo Electric Ind Ltd | Manufacture of al alloy machine parts |
| JPS60145349A (en) * | 1984-01-07 | 1985-07-31 | Sumitomo Electric Ind Ltd | Aluminum alloy parts having high heat resistance and wear resistance and manufacture thereof |
-
1986
- 1986-03-11 JP JP61053161A patent/JPH075936B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| 堂山昌男，山本良一編「材料テクノロジー１７，複合材料」東京大学出版会，昭５９−１０−１発行，Ｐ．９２ |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62211305A (en) | 1987-09-17 |
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