JPS63203755A - Manufacture of aluminum wheel for automobile - Google Patents
Manufacture of aluminum wheel for automobileInfo
- Publication number
- JPS63203755A JPS63203755A JP3572287A JP3572287A JPS63203755A JP S63203755 A JPS63203755 A JP S63203755A JP 3572287 A JP3572287 A JP 3572287A JP 3572287 A JP3572287 A JP 3572287A JP S63203755 A JPS63203755 A JP S63203755A
- Authority
- JP
- Japan
- Prior art keywords
- strength
- alloy
- automobile
- kgf
- manufacture
- 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 abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 title claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 8
- 239000000956 alloy Substances 0.000 claims abstract description 12
- 238000005242 forging Methods 0.000 claims abstract description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 229910018464 Al—Mg—Si Inorganic materials 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 abstract description 7
- 238000005204 segregation Methods 0.000 abstract description 6
- 229910021365 Al-Mg-Si alloy Inorganic materials 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 238000003825 pressing Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 102100039851 DNA-directed RNA polymerases I and III subunit RPAC1 Human genes 0.000 description 1
- 101710112289 DNA-directed RNA polymerases I and III subunit RPAC1 Proteins 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 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、高強度で偏析の発生がなく、衝撃強度の高い
自動車用アルミニウムホイールの製造法である。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention is a method for manufacturing an aluminum wheel for automobiles that has high strength, does not cause segregation, and has high impact strength.
［従来の技術］
従来自動車用の１ピースアルミニウムホイールは第１図
ないし第４図に示す方法で製造されている。すなわち、
まず第１図に示すようにリンク１によりスリーブ２を傾
動させ、これに取鍋３よりアルミニウム溶湯４を注入し
、第２図に示すようにスリーブ２を垂直に立てて上型５
および下型６よりなる割型の下部に当て、第３図に示す
ようにスリーブ支持台７を加圧シリンダ８により上昇さ
せ、ついで、ピストン９を上昇させてスリーブ２内の溶
湯４を割型内に注入する。[Prior Art] Conventionally, one-piece aluminum wheels for automobiles have been manufactured by the method shown in FIGS. 1 to 4. That is,
First, as shown in FIG. 1, the sleeve 2 is tilted by the link 1, molten aluminum 4 is poured into it from the ladle 3, and the sleeve 2 is stood vertically as shown in FIG.
and the lower part of the split mold consisting of the lower mold 6, and as shown in FIG. Inject inside.
この場合に使われるアルミニウム材料は、ＪＩＳ規格の
アルミニウム鋳物合金に分類されるＡ０４Ｃが用いられ
る。The aluminum material used in this case is A04C, which is classified as an aluminum casting alloy according to the JIS standard.
Ａ０４Ｃ合金の化学成分は、ＪＩＳＲ格によれば、Ｃｕ
Ｏ，２０％以下、Ｓｉ６．５〜７．５％、Ｍ ｇ ０．
２５〜０．４５％、Ｚｎ０．３０％以下、ＦｅＯ，５０
％以下、Ｍ ｎ Ｏ，３０％以下、Ｔｉ０．２０％以下
、残Ａ１である。According to the JISR rating, the chemical composition of A04C alloy is Cu.
O, 20% or less, Si 6.5-7.5%, M g 0.
25-0.45%, Zn 0.30% or less, FeO, 50
% or less, M n O, 30% or less, Ti 0.20% or less, and the remainder A1.
そしてＡ０４Ｃ合金のＴ６材の機械的性質は、引張強さ
２５〜３０ｋｇｆ／ｍｍ’ 、伸び５〜１３％、シャル
ピー衝撃値０．６〜１．０）ｔｇｍ／ｃｍ ２、疲れ強
さく１０７回＞ ６〜９ ｋｏｓ／ｍｍ２である。The mechanical properties of the A04C alloy T6 material are tensile strength 25-30 kgf/mm', elongation 5-13%, Charpy impact value 0.6-1.0) tgm/cm2, and fatigue strength 107 times. It is 6 to 9 kos/mm2.
［発明が解決しようとする問題点］
本発明は自動車用のホイールとして、引張強度を３０ｋ
ｇｆ／ｍｌ’以上、シャルピー衝撃値をｉ、。[Problems to be solved by the invention] The present invention is an automobile wheel with a tensile strength of 30k.
gf/ml' or more, Charpy impact value is i.
〜２．０ｋ（１，ｆ、ｍ／Ｃｍ’ 、疲れ強さを１０ｋ
（ｌｆ／ｍｌｌ１２以上の機械的強度のすぐれたものを
得ようとするものである。~2.0k (1,f, m/Cm', fatigue strength 10k
(The purpose is to obtain an excellent mechanical strength of 12 lf/ml or more.
［問題点を解決するための手段］
本発明は上記問題を解決せんとするもので、Ｆｅ Ｏ，
０１〜０．４％含有するＡ Ｉ −Ｍｇ−３ｉ系展伸用
アルミニウム合金材を、圧力
１０００ｋＯｆ／ｃｍ ２以上で３０秒以上溶湯鍛造後
、強度向上に適した条件で熱処理することを特徴とする
自動車用アルミニウムホイールの製造法である。[Means for solving the problems] The present invention aims to solve the above problems.
The aluminum alloy material for wrought AI-Mg-3i containing 01 to 0.4% is molten forged at a pressure of 1000 kOf/cm2 or more for 30 seconds or more, and then heat treated under conditions suitable for improving strength. This is a manufacturing method for aluminum wheels for automobiles.
Ａ Ｉ −Ｍｇ−３ｉ系展伸用アルミニウム合金材とし
ては、例えばＪＩＳＢ０６１合金が挙げられる。ＪＩＳ
６０６１合金は３ ｉ ０．４０〜０．８％、ＣＬＪＯ
，１５〜０．４０％、ＭｇＯ，８〜１．２％、Ｃｒ０．
０４〜０．３５％、Ｆｅ０．７％以下、ＭｎＯ，１５％
以下、Ｚｎ０．２５％以下、ｌ’−ｉｏ、１５％以下、
残Ａ１よりなるもので、本発明ではこのｌ”ｅ成分を０
．０１〜０．４％に限定したものを用い、適切な条件で
溶湯鍛造し、強度向上に適した熱処理条件で処理するこ
とにより、前記ＡＣ４０以上の性能を示すホイールを得
るものである。Examples of the AI-Mg-3i-based aluminum alloy material for drawing include JISB061 alloy. JIS
6061 alloy is 3i 0.40-0.8%, CLJO
, 15-0.40%, MgO, 8-1.2%, Cr0.
04-0.35%, Fe0.7% or less, MnO, 15%
Below, Zn 0.25% or less, l'-io, 15% or less,
The remainder consists of A1, and in the present invention, this l”e component is set to 0.
．． By using a material limited to 0.01 to 0.4%, molten metal forging under appropriate conditions, and heat treatment conditions suitable for improving strength, a wheel exhibiting performance of AC40 or higher can be obtained.
Ｆｅが０．５％を越えると衝撃値が低下し、Ｆｅが少な
い程衝撃値は向上するが、０．０１％未満にしようとす
ると高純地金の必要が生じ、コスト高となるため、下限
をｏ、 ｏｉ％とした。If the Fe content exceeds 0.5%, the impact value will decrease, and the smaller the Fe content, the better the impact value will be. However, if you try to reduce the Fe content to less than 0.01%, you will need a high purity metal, which will increase the cost. The lower limit was set to o, oi%.
加圧力を１０００ｋｇｆ／ｃｍ２以上とするのは、Ａ１
−ｖｑ−ｓ を系展伸用アルミニウム合金材の場合、疲
労強度の加圧力依存性がおり、疲労強度を１０ｋｇｆ／
ｍｍ２としたい場合には、最低１０００ｋｇｆ／Ｃｍ
２の加圧力を必要とするためである。Setting the pressing force to 1000 kgf/cm2 or more is A1.
-vq-s is an aluminum alloy material for system expansion, the fatigue strength is dependent on the pressing force, and the fatigue strength is 10 kgf/
If you want to set it to mm2, at least 1000kgf/Cm
This is because a pressing force of 2 is required.
又加圧時間も３０秒以上は必要である。Moreover, the pressurization time is also required to be 30 seconds or more.
熱処理は５３０〜５６０℃で１〜３時間行う。The heat treatment is performed at 530 to 560°C for 1 to 3 hours.
そして、水冷侵、標準の熱処理条件である１７５℃で８
時間の焼戻し処理をすることにより、引張強さ３０ｋｇ
ｆ／ｍｍ２以上の強度が得られる。Then, water cooling was performed at 175°C, which is the standard heat treatment condition.
Tensile strength 30kg by time-tempering treatment
A strength of f/mm2 or more can be obtained.
［実施例］
実施例に用いるアルミニウム合金のＦｅ以外の成分は、
３ｉ０．６％、ＣＬＪ ０．２９％、ＭＣＪ １．０％
、Ｏｒｏ、２９％、残Ａ１である。[Example] Components other than Fe of the aluminum alloy used in the example are:
3i0.6%, CLJ 0.29%, MCJ 1.0%
, Oro, 29%, balance A1.
上記組成でＦｅの量を変えた合金を用い、第１図ないし
第４図に示した方法により加圧力１０００ｋｇｆ／ｃｍ
”で３０秒間溶湯鍛造し、５４０℃で３時間熱処理後、
水冷して、１１５℃で８時間焼鈍した。Using an alloy with the above composition but varying the amount of Fe, a pressing force of 1000 kgf/cm was applied by the method shown in Figures 1 to 4.
” for 30 seconds, and after heat treatment at 540℃ for 3 hours,
It was water-cooled and annealed at 115° C. for 8 hours.
処理した合金材の衝撃値を示すと表１のとおりである。Table 1 shows the impact values of the treated alloy materials.
表１
つぎに加圧条件のうち、加圧時間の変動について試験を
した。Table 1 Next, among the pressurization conditions, changes in pressurization time were tested.
Ｆｅのはを０．２％とし、加圧力を
１０００ｋｏｆ／ｃｍ ２としたときの加圧時間と偏析
発生の関係をしらべた。結果を表２に示す。加圧時間３
０秒以上で偏析発生はなかった。The relationship between the pressurization time and the occurrence of segregation was investigated when the Fe content was 0.2% and the pressurization force was 1000 kof/cm 2 . The results are shown in Table 2. Pressurization time 3
No segregation occurred after 0 seconds or more.
表２
つぎに、Ｆｅの柵を０．２％とし、加圧時間を３０秒と
したときの加圧力と偏析発生の有無との関係を表３に、
又表４には加圧力と疲労強度との関係を示した。Table 2 Next, Table 3 shows the relationship between the pressurizing force and the presence or absence of segregation when the Fe fence is 0.2% and the pressurizing time is 30 seconds.
Furthermore, Table 4 shows the relationship between pressing force and fatigue strength.
加圧力５００ ｋｇｆ／ｃｍ２以上では偏析の発生がな
く、又、加圧力１０００ｋｇｆ／Ｃｍ２以上では疲労強
度１０ｋｇｆ／ｍｍ２（１０７回）以上であった。When the pressing force was 500 kgf/cm2 or more, no segregation occurred, and when the pressing force was 1000 kgf/cm2 or more, the fatigue strength was 10 kgf/mm2 (107 times) or more.
表３
表４
ざらに、Ｆｅの邑と加圧力とを変えて、引張強度（ｋｇ
／ｍｍ２）を試験した。結果を表５に示す。Table 3 Table 4 Tensile strength (kg
/mm2) was tested. The results are shown in Table 5.
表５
表５からみて、Ｆｅの母および加圧力は引張強度には余
り影響しないことが判る。Table 5 From Table 5, it can be seen that the Fe matrix and the applied pressure do not have much influence on the tensile strength.
［発明の効果］
本発明によれば、従来のＡｏ ４Ｃ−Ｔ ６材以上の強
度をもら、しかも衝撃値１ ｋｇｍ／ｃｍ ２以上の自
動車用タイヤホイールが得られる。[Effects of the Invention] According to the present invention, it is possible to obtain an automobile tire wheel which has a strength greater than that of the conventional Ao 4C-T 6 material and has an impact value of 1 kgm/cm 2 or more.
第１図ないし第４図はタイヤホイールの製造工程の説明
図である。
１・・・リンク、２・・・スリーブ、３・・・取鍋、４
・・・溶湯、５・・・上型、６・・・下型、７・・・ス
リーブ支持台、８・・・加圧シリンダー、９・・・ピス
トン。
特許出願人 住友軽金属工業株式会社
代理人 弁理士 小 松 秀 岳
代理人 弁理士 旭 宏
第１図
ζ
第３図
第２図
第４図1 to 4 are explanatory diagrams of the manufacturing process of a tire wheel. 1...Link, 2...Sleeve, 3...Ladle, 4
... Molten metal, 5... Upper die, 6... Lower die, 7... Sleeve support stand, 8... Pressure cylinder, 9... Piston. Patent Applicant Sumitomo Light Metal Industries Co., Ltd. Agent Patent Attorney Hide Komatsu Agent Patent Attorney Hiroshi Asahi Figure 1 ζ Figure 3 Figure 2 Figure 4
Claims (1)
伸用アルミニウム合金材を、圧力１０００ｋｇｆ／ｃｍ
＾２以上で３０秒以上溶湯鍛造後、強度向上に適した条
件で熱処理することを特徴とする自動車用アルミニウム
ホィールの製造法。An Al-Mg-Si aluminum alloy material for drawing containing 0.01 to 0.4% Fe was heated at a pressure of 1000 kgf/cm.
A method for manufacturing aluminum wheels for automobiles, which comprises forging molten metal at ^2 or more for 30 seconds or more, and then heat-treating it under conditions suitable for improving strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3572287A JPS63203755A (en) | 1987-02-20 | 1987-02-20 | Manufacture of aluminum wheel for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3572287A JPS63203755A (en) | 1987-02-20 | 1987-02-20 | Manufacture of aluminum wheel for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63203755A true JPS63203755A (en) | 1988-08-23 |
Family
ID=12449745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3572287A Pending JPS63203755A (en) | 1987-02-20 | 1987-02-20 | Manufacture of aluminum wheel for automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63203755A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5846348A (en) * | 1995-08-30 | 1998-12-08 | The Furukawa Electric Co., Ltd. | High strength and toughness aluminum alloy casting by high-pressure casting method and method of manufacturing same |
-
1987
- 1987-02-20 JP JP3572287A patent/JPS63203755A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5846348A (en) * | 1995-08-30 | 1998-12-08 | The Furukawa Electric Co., Ltd. | High strength and toughness aluminum alloy casting by high-pressure casting method and method of manufacturing same |
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