JP3185658B2 - Manufacturing method of forged lightweight aluminum wheels with high durability and corrosion resistance - Google Patents
Manufacturing method of forged lightweight aluminum wheels with high durability and corrosion resistanceInfo
- Publication number
- JP3185658B2 JP3185658B2 JP08723696A JP8723696A JP3185658B2 JP 3185658 B2 JP3185658 B2 JP 3185658B2 JP 08723696 A JP08723696 A JP 08723696A JP 8723696 A JP8723696 A JP 8723696A JP 3185658 B2 JP3185658 B2 JP 3185658B2
- Authority
- JP
- Japan
- Prior art keywords
- corrosion resistance
- forged
- rim
- manufacturing
- wheel
- 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.)
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Description
【０００１】[0001]
【発明の属する技術分野】この発明は、バス、トラック
等の大型車両や超高速車両等に使用される高耐久性・耐
食性を有する鍛造製軽量アルミホイールの製造方法に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a forged lightweight aluminum wheel having high durability and corrosion resistance, which is used for large vehicles such as buses and trucks and ultra-high-speed vehicles.
【０００２】[0002]
【従来の技術】アルミ合金は、軽く耐食性に優れている
ため、自動車等の車両では、車体構成材のほか、タイヤ
用のホイールに使用されている。そして、排ガス規制の
強化や車両の高速化・高性能化に伴い、バス、トラック
等の大型車両の軽量化がますます強く要望される一方、
車両の大型化による輪荷重の増加に対応してホイールの
高強度化が要求されるようになった。2. Description of the Related Art Aluminum alloys are light and excellent in corrosion resistance, and therefore are used in vehicles such as automobiles, as well as vehicle body components and tire wheels. And with the tightening of emission regulations and the speed and performance of vehicles, there is an increasing demand for lighter vehicles such as buses and trucks.
In response to the increase in wheel load due to the increase in size of vehicles, higher strength wheels have been required.
【０００３】こうしたホイールの軽量化と高強度化とい
う相反する要求を同時に満足させるため、従来は、一般
にその使用材料をアルミ合金の中でも６０００系から２
０００系や７０００系といった高力合金に変更する方法
がとられていた。しかし、軽量であることや耐久性に優
れていることのほかに、アルミホイールに要求されるも
う一つの重要な特性は耐食性に優れていることである
が、２０００系や７０００系合金では、この耐食性を満
足させることが困難であった。[0003] In order to simultaneously satisfy the conflicting demands of weight reduction and high strength of such wheels, conventionally, the materials used have generally been changed from 6000 series among aluminum alloys.
A method of changing to a high-strength alloy such as 000 series or 7000 series has been adopted. However, in addition to being lightweight and durable, another important characteristic required of aluminum wheels is that they have excellent corrosion resistance. It was difficult to satisfy the corrosion resistance.
【０００４】出願人は、先に耐食性・疲労強度の優れた
鍛造アルミホイールの製造方法として、一体型鍛造で形
成したアルミホイールの表面に回転式ボールまたはロー
ラを押し付けて、表面を加工硬化させると共に、圧縮残
留応力を付与し、かつ耐食性を向上させる方法（特開平
６−７９５４０号公報参照）を提案した。[0004] As a method of manufacturing a forged aluminum wheel having excellent corrosion resistance and fatigue strength, a rotary ball or a roller is pressed against the surface of an aluminum wheel formed by integral forging to work harden the surface. Proposed a method of imparting compressive residual stress and improving corrosion resistance (see Japanese Patent Application Laid-Open No. 6-79540).
【０００５】[0005]
【発明が解決しようとする課題】前記のごとく、従来の
鍛造アルミホイールは、耐食性・疲労強度ともに十分と
はいえなかったので、特開平６−７９５４０号公報に記
載された製造方法のように、耐食性や疲労強度などのホ
イール特性の向上が試みられ、それなりの効果があがっ
ている。しかし、アルミホイールの軽量化と高強度化を
両立させる試みはなされておらず、大型車両や高速車両
に適応し得る優れたアルミホイールの出現が望まれてい
た。As described above, the conventional forged aluminum wheels are not sufficient in both corrosion resistance and fatigue strength. Therefore, as described in the manufacturing method described in JP-A-6-79540, Attempts have been made to improve wheel characteristics such as corrosion resistance and fatigue strength, and the effects have been increased accordingly. However, no attempt has been made to achieve both light weight and high strength of the aluminum wheel, and the appearance of an excellent aluminum wheel applicable to a large vehicle or a high-speed vehicle has been desired.
【０００６】本発明は、かかる現状に鑑み、軽量化と高
強度化という相反することを両立して満足させ、大型車
両や高速車両に適応し得る鍛造製軽量アルミホイールを
提供するものである。The present invention has been made in view of the above-mentioned circumstances, and provides a forged lightweight aluminum wheel which can satisfy the conflict between weight reduction and high strength, and can be adapted to a large vehicle or a high-speed vehicle.
【０００７】[0007]
【課題を解決するための手段】前記目的を達成するた
め、本発明の高耐久性・耐食性を有する鍛造製軽量アル
ミホイールの製造方法は、重量％で、Cu：0.5〜0.9％、
Si：0.8〜1.2％、Mn：0.5〜0.7％、Mg：0.8〜1.2％、C
r：0.1〜0.2％を含有し、残部がAl及び不可避的不純物
からなるAl-Mg-Si系合金を素材とし、これに通常の鍛
造、熱処理及び機械加工を施してホイールのリムのタイ
ヤ取付け側の面及びディスクのリム接続側の両面に20〜
120barの圧力で回転式ボールまたはローラを押付けて、
これらホイールのリムのタイヤ取付け側の面及びディス
クのリム接続側の両面を加工硬化させると共に、圧縮残
留応力を付与することを特徴とする。In order to achieve the above object, a method for manufacturing a forged lightweight aluminum wheel having high durability and corrosion resistance according to the present invention comprises the following:
Si: 0.8-1.2%, Mn: 0.5-0.7%, Mg: 0.8-1.2%, C
r: Al-Mg-Si alloy containing 0.1-0.2%, with the balance being Al and unavoidable impurities, which is subjected to normal forging, heat treatment and machining to form a wheel rim tie
20 to both sides of the disk mounting side and the disk rim connection side
Press the rotating ball or roller with a pressure of 120 bar,
The surface of the rim of these wheels on the tire mounting side and the disc
Work hardening is performed on both sides of the rim connection side of the metal , and compressive residual stress is applied.
【０００８】[0008]
【発明の実施の形態】本発明で素材として使用するＡｌ
−Ｍｇ−Ｓｉ系合金は、通常使用されているアルミホイ
ール材に比べ、Ｓｉ、Ｃｕ及びＭｎの含有量が多く、か
つＳｉ含有量とＭｇ含有量を同じにすることにより、加
工硬化後の強度が格段に優れたものが得られ、大型車両
用アルミホイールとして十分な高強度を確保しながら重
量を軽減し得ることを特徴とする。本発明で使用する素
材合金の化学成分を限定したのは次の理由による。DESCRIPTION OF THE PREFERRED EMBODIMENTS Al used as a material in the present invention
-Mg-Si based alloy has a higher content of Si, Cu and Mn compared to a commonly used aluminum wheel material, and the strength after work hardening by making the Si content and the Mg content the same. Is characterized by being able to reduce the weight while securing a sufficiently high strength as an aluminum wheel for large vehicles. The reasons for limiting the chemical composition of the material alloy used in the present invention are as follows.
【０００９】Ｃｕは、Ｃｕ化合物を析出して強度を増大
するのに有効な元素であるが、その含有量が０．５％未
満では十分な効果が得られず、また０．９％を超えると
耐食性が劣化するので、０．５〜０．９％の範囲に限定
した。[0009] Cu is an element effective for increasing the strength by precipitating Cu compounds, but if its content is less than 0.5%, a sufficient effect cannot be obtained, and more than 0.9%. Therefore, the corrosion resistance deteriorates, so the range is limited to 0.5 to 0.9%.
【００１０】Ｓｉは、溶体化処理、時効処理によりＭｇ
と結合し、Ｍｇ2Ｓｉ化合物を析出させ、高強度を得る
のに有効である。また、その含有量はＭｇ含有量と同じ
範囲とすることにより、Ｍｇ2Ｓｉ組成よりＳｉ過剰合
金とし、それにより時効硬化性を高め、高強度化を図っ
た。したがって、その含有量は、Ｍｇ含有量と同じ０．
８〜１．２％の範囲とした。[0010] Si is Mg by solution treatment and aging treatment.
And is effective for precipitating the Mg 2 Si compound and obtaining high strength. Further, by setting the content in the same range as the Mg content, a Si-excess alloy was formed over the Mg 2 Si composition, thereby improving age hardening properties and increasing strength. Therefore, its content is the same as the Mg content of 0.1.
The range was 8 to 1.2%.
【００１１】Ｍｎは、析出するＭｎ化合物が組織の再結
晶微細化に役立っため、合金の高強度化に伴い低下する
延性、靭性を補うのに有効である。ここで、その含有量
が０．５％未満では十分な効果が得られず、また、０．
７％を超えると焼入れ性を阻害する影響が大きくなり、
十分な高強度が得られないため、その含有量は０．５〜
０．７％の範囲とした。[0011] Mn is effective in compensating for the ductility and toughness, which decrease with increasing the strength of the alloy, because the precipitated Mn compound serves for refining and refining the structure. Here, if the content is less than 0.5%, a sufficient effect cannot be obtained.
If it exceeds 7%, the effect of inhibiting hardenability increases,
Since sufficient high strength cannot be obtained, the content is 0.5 to
The range was 0.7%.
【００１２】Ｍｇは、溶体化処理、時効処理によりＳｉ
と結合し、Ｍｇ2Ｓｉ化合物を析出させ、高強度を得る
のに有効である。その含有量は６０６１合金と同じ範囲
の０．８〜１．２％の範囲とした。Mg is converted into Si by solution treatment and aging treatment.
And is effective for precipitating the Mg 2 Si compound and obtaining high strength. The content was in the range of 0.8 to 1.2% of the same range as the 6061 alloy.
【００１３】Ｃｒは、析出するＣｒ化合物が組織の再結
晶微細化に役立っため、合金の高強度化に伴い低下する
延性、靭性を補うのに有効である。ここで、その含有量
が０．１％未満では十分な効果が得られず、また、０．
２％を超えると焼入れ性を阻害する影響が大きくなり、
十分な高強度が得られないため、その含有量は０．１〜
０．２％の範囲とした。[0013] Cr is effective in compensating for the ductility and toughness, which decrease with increasing the strength of the alloy, since the precipitated Cr compound is useful for refining and refining the structure. Here, if the content is less than 0.1%, a sufficient effect cannot be obtained.
If it exceeds 2%, the effect of inhibiting hardenability increases,
Since sufficient high strength cannot be obtained, the content is 0.1 to
The range was 0.2%.
【００１４】前記化学成分を有するアルミニウム合金を
素材として、これに通常の熱間鍛造、スピニング、溶体
化処理、時効処理を施した後、機械加工を加えて所定寸
法に仕上げたアルミホイールの表面の全体、または必要
箇所、例えばリムのタイヤ取付け側面及びディスクのリ
ム接続側の両面部分に２０〜１２０ｂａｒの圧力で回転
式ボールまたはローラーを押圧し、押圧した表面部分を
加工硬化させ、残留応力を付与して疲労強度を向上させ
る。また、同時に押圧することにより表面が塑性流動
し、腐食の起点となる露出した晶出物が、マトリックス
によりラッピングされ、耐食性を向上させた製品が得ら
れる。An aluminum alloy having the above-mentioned chemical components is used as a raw material, which is subjected to ordinary hot forging, spinning, solution treatment, and aging treatment, and then subjected to machining to finish the surface of the aluminum wheel to a predetermined size. A rotary ball or a roller is pressed with a pressure of 20 to 120 bar on the entire surface or a necessary portion, for example, both sides of the rim on the tire mounting side and the disk rim connection side, and the pressed surface portion is work-hardened to give residual stress. To improve fatigue strength. Simultaneously, by pressing simultaneously, the surface plastically flows, and the exposed crystallized material, which is the starting point of corrosion, is wrapped by the matrix, whereby a product with improved corrosion resistance is obtained.
【００１５】回転式ボールまたはローラーを押圧する際
の圧力は、現用の回転式ボール（直径：１３ｍｍ）をコ
ンプレッサー圧力を変化させて加圧試験した結果に基づ
いて決めたものである。その試験結果を図１に示す。図
はコンプレッサーの圧力（ｂａｒ）と被加工材が受ける
荷重（ｋｇｆ）との関係を示す。なお、図中の直線はボ
ールホルダーの押込み量を０．５ｍｍにした場合であ
る。この図では、加圧する圧力が２０ｂａｒ未満と１２
０ｂａｒを超える部分は省略しているが、２０ｂａｒ未
満では要求する残留応力深さが得られず、また１２０ｂ
ａｒを超えると製品表面が凹凸化し商品価値が劣化する
ので、加圧する圧力の範囲を２０〜１２０ｂａｒとし
た。The pressure at which the rotary ball or roller is pressed is determined based on the result of a pressure test on a current rotary ball (diameter: 13 mm) while changing the compressor pressure. FIG. 1 shows the test results. The figure shows the relationship between the pressure (bar) of the compressor and the load (kgf) applied to the workpiece. The straight line in the figure is the case where the pushing amount of the ball holder is set to 0.5 mm. In this figure, the pressure to be applied is less than 20 bar and 12
Although the portion exceeding 0 bar is omitted, the required residual stress depth cannot be obtained below 20 bar.
When the pressure exceeds ar, the product surface becomes uneven and the commercial value deteriorates. Therefore, the range of the pressure to be applied is set to 20 to 120 bar.
【００１６】[0016]
【実施例】表１に示す化学成分を有する本発明の実施に
よる本発明合金１〜３と、成分の異なる比較合金の鋳塊
に、それぞれ通常の熱間鍛造、スピニング、熱処理及び
機械加工を施してホイールサイズ１７．５×６．００の
鍛造アルミホイールを成形した。そして、本発明実施例
は、表２に示す条件で、図２に示すリム１のタイヤ取付
面側の部位ａとディスク２のリム側寄りの部位ｂ、ｃの
表面に回転式ボールを押圧して表面処理を行なった。ま
た、比較例はリム部のみを塗装した。EXAMPLES Ingots of the present invention alloys 1 to 3 having the chemical components shown in Table 1 and comparative alloys having different components are subjected to ordinary hot forging, spinning, heat treatment and machining, respectively. To form a forged aluminum wheel having a wheel size of 17.5 × 6.00. In the embodiment of the present invention, the rotary ball is pressed against the surface of the portion a of the rim 1 on the tire mounting surface side and the surfaces of the portions b and c of the disk 2 near the rim side shown in FIG. Surface treatment. In the comparative example, only the rim was painted.
【００１７】[0017]
【表１】 [Table 1]
【００１８】[0018]
【表２】 [Table 2]
【００１９】前記実施例及び比較例により製造した各ア
ルミホイールについて、機械的性質及び耐食性、疲労試
験を行なった。その結果を表３に示す。なお、本発明合
金１〜３及び比較合金共に、本発明実施例の表面処理条
件で処理したものと、比較例の条件で処理したものと二
様に分けて試験した。Each of the aluminum wheels manufactured according to the above Examples and Comparative Examples was subjected to mechanical properties, corrosion resistance, and fatigue tests. Table 3 shows the results. In addition, the alloys 1 to 3 of the present invention and the comparative alloy were separately tested in two ways: those treated under the surface treatment conditions of the present invention and those treated under the conditions of the comparative example.
【００２０】[0020]
【表３】 [Table 3]
【００２１】表３の結果より、本発明合金の化学成分を
有する合金１〜３は、本発明の条件で表面処理を施せ
ば、合金３＞２＞１の順で、いずれも比較合金に比べ高
強度が得られていることがわかる。また、本発明の条件
で表面処理を施せば、比較例条件の場合に比べ耐食性が
向上し、更に疲労強度も格段に増大することがわかる。According to the results shown in Table 3, alloys 1 to 3 having the chemical components of the alloy of the present invention can be subjected to surface treatment under the conditions of the present invention, in the order of alloy 3>2> 1, all of which are compared with the comparative alloys. It can be seen that high strength was obtained. Further, it can be seen that when the surface treatment is performed under the conditions of the present invention, the corrosion resistance is improved and the fatigue strength is significantly increased as compared with the case of the comparative example.
【００２２】前記のごとく、疲労強度が増大するのは、
本発明の表面処理により生じる圧縮残留応力によりもた
らされるが、ここに直径１３ｍｍの回転式ボールをコン
プレッサー圧力を変化してボール掛けした場合の圧縮残
留応力を表４に示す。As described above, the reason why the fatigue strength is increased is as follows.
This is caused by the compressive residual stress generated by the surface treatment of the present invention. Table 4 shows the compressive residual stress when a rotary ball having a diameter of 13 mm is hanged by changing the compressor pressure.
【００２３】[0023]
【表４】 [Table 4]
【００２４】本発明の実施によれば、従来のアルミ合金
を使用し、かつ従来の条件で表面処理したアルミホイー
ルに比べ高強度なアルミホイールが得られるので、同じ
条件のアルミホイールを作る場合、肉厚を薄くすること
ができ重量を軽減できる。例えば、ホイールサイズ17.5
×6.00のアルミホイールを、本発明の実施により作った
場合（Ａ）と従来方により作った比較例の場合（Ｂ）と
を比較して図３に示す。両者のディスク外周部では、
（Ａ）の肉厚ｔ1＝13.7mmに対し（Ｂ）の肉厚ｔ2＝19.0
mmであり、またリム部では、（Ａ）の肉厚ｔ3＝6mmに対
し（Ｂ）の肉厚ｔ4＝8mmであった。その結果、両者の重
量は（Ａ）が11.4kgで（Ｂ）が13.5kgあり、本発明の実
施によれば、重量を約15％軽減できることを確認した。According to the practice of the present invention, an aluminum wheel using a conventional aluminum alloy and having a higher strength than a surface-treated aluminum wheel under the conventional conditions can be obtained. The thickness can be reduced and the weight can be reduced. For example, wheel size 17.5
FIG. 3 shows a comparison between a case where an aluminum wheel of × 6.00 was made by the practice of the present invention (A) and a case of a comparative example made by the conventional method (B). At the outer periphery of both disks,
(A) thickness t 1 = 13.7 mm, (B) thickness t 2 = 19.0 mm
In the rim portion, the thickness (A) was t 3 = 6 mm, while the thickness (B) was t 4 = 8 mm. As a result, the weight of both (A) was 11.4 kg and that of (B) was 13.5 kg, and it was confirmed that the weight can be reduced by about 15% according to the practice of the present invention.
【００２５】[0025]
【発明の効果】本発明の実施によれば、軽量化と高強度
化を達成した鍛造製アルミホイールを製造することがで
き、その結果大型車両の走行性能の向上に寄与できる。According to the present invention, a forged aluminum wheel having reduced weight and increased strength can be manufactured, and as a result, it is possible to contribute to improving the running performance of a large vehicle.
【図１】アルミホイール表面に回転式ボールを押圧する
際のコンプレッサー圧力と被加工材が受ける荷重との関
係を示すグラフである。FIG. 1 is a graph showing a relationship between a compressor pressure when a rotary ball is pressed against an aluminum wheel surface and a load applied to a workpiece.
【図２】本発明の実施によりアルミホイールの表面に回
転式ボールを押圧する部分ａ、ｂ、ｃを示す説明図であ
る。FIG. 2 is an explanatory view showing portions a, b, and c for pressing a rotary ball against the surface of an aluminum wheel according to an embodiment of the present invention.
【図３】本発明の実施によるアルミホイールと従来方法
によるアルミホイールとの製品肉厚を比較して示すホイ
ール一部の断面図で、（Ａ）は本発明の実施例、（Ｂ）
は比較例である。FIG. 3 is a cross-sectional view of a part of a wheel showing the product thickness of an aluminum wheel according to an embodiment of the present invention and an aluminum wheel according to a conventional method, wherein (A) is an embodiment of the present invention, and (B) is an embodiment.
Is a comparative example.
１ リム ２ ディスク 1 rim 2 disc
───────────────────────────────────────────────────── フロントページの続き (72)発明者 梁田 伸一 大阪府大阪市此花区島屋５丁目１番109 号 住友金属工業株式会社 関西製造所 製鋼品事業所内 (72)発明者 岸 敏文 大阪府大阪市此花区島屋５丁目１番109 号 住友金属工業株式会社 関西製造所 製鋼品事業所内 (56)参考文献 特開 平６−79540（ＪＰ，Ａ) 特開 平５−277840（ＪＰ，Ａ) 特開 平７−145440（ＪＰ，Ａ) 特開 平７−150312（ＪＰ，Ａ) 特開 平８−3702（ＪＰ，Ａ) 特開 平８−3675（ＪＰ，Ａ) 特開 平７−258784（ＪＰ，Ａ) 特開 平６−33178（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B21J 1/00 - 13/14 B21J 17/00 - 19/04 B21K 1/00 - 31/00 C22C 21/06 C22F 1/05 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shinichi Yanada 5-1-1109 Shimaya, Konohana-ku, Osaka-shi, Osaka Sumitomo Metal Industries, Ltd. Kansai Works Steelmaking Products Office (72) Inventor Toshifumi Kishi Osaka-shi, Osaka 5-1-1109 Shimaya, Konohana-ku Sumitomo Metal Industries Co., Ltd. Kansai Works Steelmaking Works (56) References JP-A-6-79540 (JP, A) JP-A-5-277840 (JP, A) JP-A-7-145440 (JP, A) JP-A-7-150312 (JP, A) JP-A-8-3702 (JP, A) JP-A-8-3675 (JP, A) JP-A-7-258784 (JP , A) JP-A-6-33178 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B21J 1/00-13/14 B21J 17/00-19/04 B21K 1/00 -31/00 C22C 21/06 C22F 1/05
Claims (1)
％、Mn：0.5〜0.7％、Mg：0.8〜1.2％、Cr：0.1〜0.2％
を含有し、残部がAl及び不可避的不純物からなるAl-Mg-
Si系合金を素材とし、これに通常の鍛造、熱処理及び機
械加工を施してホイールのリムのタイヤ取付け側の面及
びディスクのリム接続側の両面に20〜120barの圧力で回
転式ボールまたはローラを押付けて、これらホイールの
リムのタイヤ取付け側の面及びディスクのリム接続側の
両面を加工硬化させると共に、圧縮残留応力を付与する
ことを特徴とする高耐久性・耐食性を有する鍛造製軽量
アルミホイールの製造方法。(1) Cu: 0.5-0.9%, Si: 0.8-1.2% by weight
%, Mn: 0.5-0.7%, Mg: 0.8-1.2%, Cr: 0.1-0.2%
Al-Mg- with the balance being Al and unavoidable impurities
Made of Si alloy and subjected to normal forging, heat treatment, and machining to cover the surface of the wheel rim on the tire mounting side.
Press the rotating ball or roller with a pressure of 20 to 120 bar on both sides of the
The surface of the rim on the tire mounting side and the disc on the rim connection side
A method for manufacturing a forged lightweight aluminum wheel having high durability and corrosion resistance, wherein both surfaces are work-hardened and a compressive residual stress is applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08723696A JP3185658B2 (en) | 1996-03-14 | 1996-03-14 | Manufacturing method of forged lightweight aluminum wheels with high durability and corrosion resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08723696A JP3185658B2 (en) | 1996-03-14 | 1996-03-14 | Manufacturing method of forged lightweight aluminum wheels with high durability and corrosion resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09248649A JPH09248649A (en) | 1997-09-22 |
| JP3185658B2 true JP3185658B2 (en) | 2001-07-11 |
Family
ID=13909206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08723696A Expired - Lifetime JP3185658B2 (en) | 1996-03-14 | 1996-03-14 | Manufacturing method of forged lightweight aluminum wheels with high durability and corrosion resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3185658B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX352255B (en) | 2010-09-08 | 2017-11-16 | Alcoa Inc Star | Improved 6xxx aluminum alloys, and methods for producing the same. |
| JP5967920B2 (en) * | 2011-12-16 | 2016-08-10 | 株式会社レイズエンジニアリング | Manufacturing method of light alloy wheel for vehicle and light alloy wheel for vehicle |
| WO2013172910A2 (en) | 2012-03-07 | 2013-11-21 | Alcoa Inc. | Improved 2xxx aluminum alloys, and methods for producing the same |
| US9890443B2 (en) | 2012-07-16 | 2018-02-13 | Arconic Inc. | 6XXX aluminum alloys, and methods for producing the same |
| US9587298B2 (en) | 2013-02-19 | 2017-03-07 | Arconic Inc. | Heat treatable aluminum alloys having magnesium and zinc and methods for producing the same |
| CN106756680B (en) * | 2016-11-23 | 2018-09-07 | 西北有色金属研究院 | A kind of processing method of high-strength magnesium alloy small-sized bar |
-
1996
- 1996-03-14 JP JP08723696A patent/JP3185658B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09248649A (en) | 1997-09-22 |
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