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説明
Forged Aluminum Wheel Hub: Five-Arm Hub with Integrated Center Cup
The forged aluminum wheel hub is the core of a wheel assembly, connecting the wheel to the bearing and drive shaft. This design has a central cup with internal ribs, five arms extending outward, each ending in a wheel-stud boss, and a cylindrical bearing/shaft seat below. A hub carries vehicle weight, cornering side loads, and drive and braking torque at the same time, making it a typical vehicle safety part.
Al Forge Tech (AFT) closed-die hot forges the cup, five arms and shaft seat in one operation, so grain flow runs continuously from the center into every stud boss, avoiding the porosity and shrinkage common in castings. After in-house T6 heat treatment, the bearing seat, internal spline or fit surfaces, stud holes and mounting faces are turned and machined on 4.5-axis CNC, and stud pitch circle and runout are verified on CMM. AFT’s hub experience also includes forged aluminum truck wheel hubs.
主な機能
- Cup, five arms and shaft seat hot forged in one piece with continuous grain flow
- Dense forged structure free of casting porosity and shrinkage
- Bearing seat, stud holes and mounting faces turned and machined on 4.5-axis CNC
- Stud pitch circle, runout and flatness measured on CMM
Forged Aluminum Wheel Hub Specifications and Manufacturing Capability
| 商品 | 詳細 |
|---|---|
| 製品カテゴリー | 自動車部品 |
| 申請 | Wheel hub assemblies for passenger, performance and light vehicles; forged aluminum truck wheel hub experience |
| 主なプロセス | 閉型熱間鍛造（熱間鍛造プレス：600T～8,000T） |
| 素材 | Per customer specification; 6xxx alloys such as 6082 and 6110 are common for automotive chassis arms, 7xxx evaluated for higher strength |
| 熱処理 | 合金および強度要件による社内T4処理（8ユニット）およびT6人工老化（7ユニット） |
| 二次加工 | CNC加工（52台の加工センター、30台の旋盤）、バリ取り、振動仕上げ |
| 表面仕上げ | 必要に応じて、陽極酸化（硬陽極酸化を含む）、ショットブラスト、電子コーティングまたは塗装 |
| 検査 | Zeiss CMM (4 units), hardness testers, spectrometer, fluorescent penetrant line; tensile and fatigue testing available |
| 寸法と公差 | 顧客ごとに2D/3D図面 |
| 品質システム | IATF 16949:2016、ISO 14001:2015 |
Forged Aluminum Wheel Hub Manufacturing Process
- ドローイングレビューとDFM合金、荷重方向、重要な寸法を確認し、その後 QForm シミュレーションを実行して金属流動と欠陥リスクを予測します。.
- デザインと製造ダイセットの数（例えば、ブロッカーダイとファイニッシャーダイ）は部品の複雑さに合わせて計画されており、ダイの形状は携帯型3Dスキャナーで確認されます。.
- 熱間鍛造600T～8,000Tの熱間鍛造プレスでの閉型成形により、部品の形状に沿った連続した粒状流が生成されます。.
- 熱処理T4溶液処理とT6人工老化は社内で実施され、合金および強度要件によって設定されたパラメータが使用されます。.
- CNC加工 そして仕上げ穴、スレッド、接合面は機械加工され、その後、必要に応じてバリ取り、振動仕上げ、ショットブラスト、または陽極酸化が行われます。.
- 検査と発送寸法、硬度、化学組成はCMM、硬度計、分光計を用いて確認され、ロットのトレーサビリティはIATF 16949に従って管理されています。.
よくある質問
How does a forged aluminum wheel hub compare with a cast hub?
A cast hub can take more complex shapes, but residual porosity and shrinkage can become fatigue-crack initiation sites under repeated bending and torsion. A forged hub is formed in the solid state under pressure, giving a dense structure with grain flow continuous along each arm, so a lighter section can achieve the same strength and reduce unsprung mass. As a safety part, the final design must still be validated against the vehicle’s loads and test standards.
How are stud pitch circle and runout controlled on the hub?
The stud pitch circle diameter (PCD) determines whether the wheel mounts correctly, and runout of the bearing seat and mounting face affects how smoothly the wheel turns. After T6 heat treatment, AFT machines the bearing seat, mounting face and stud holes from one datum to minimize re-clamping error, then measures PCD, indexing, runout and flatness on Zeiss CMM, with records kept under IATF 16949.
Is heat treatment for the Forged Aluminum Wheel Hub done in-house?
Yes. Al Forge Tech operates 8 T4 solution treatment units and 7 T6 artificial aging units on site, so the Forged Aluminum Wheel Hub can be solution treated, quenched and aged in the same facility before machining and inspection. Keeping heat treatment in-house removes inter-plant transport, reduces lead-time risk and keeps lot traceability within one quality system. Parameters are set according to the alloy grade and your specification.
How do you keep the Forged Aluminum Wheel Hub consistent from lot to lot?
Al Forge Tech runs incoming (IQC), in-process (IPQC) and final (FQC) inspection under IATF 16949:2016, supported by 4 Zeiss CMMs, hardness testers, a spectrometer and a fluorescent penetrant inspection line. First, middle and last pieces of every lot are checked against the die; when wear causes dimensional drift, the die is reworked to keep the Forged Aluminum Wheel Hub stable across lots.
What information do you need to quote the Forged Aluminum Wheel Hub?
Please send a 3D model and 2D drawing, alloy grade and temper, critical tolerances, surface finish requirements, estimated annual volume and target delivery date. Complete data lets our engineers judge forging feasibility, the number of die sets and the machining scope for the Forged Aluminum Wheel Hub at the quotation stage. If the design is still conceptual, a sketch is enough to start a DFM discussion.
Request a Quote for the Forged Aluminum Wheel Hub
Developing a new Forged Aluminum Wheel Hub or converting an existing part to aluminum forging? Send us your 3D/2D drawings, alloy and temper, annual volume and finishing requirements. Our engineering team will reply with a feasibility review, die plan and quotation.
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類似のパーツを比較するには、閲覧してください。 自動車部品 そして私たちの 自動車用アルミニウム鍛造用途, または、こちらをご覧ください 会社紹介 当社の設備および認証について。.
