Hub
描述
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.
主要功能
- 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 |
|---|---|
| 產品類別 | 汽車零配件 |
| 申請 | Wheel hub assemblies for passenger, performance and light vehicles; forged aluminum truck wheel hub experience |
| 主要過程 | 閉式熱鍛造（熱鍛造壓機 600T–8,000T） |
| 材質 | 根據客戶的規格；6xxx合金如6082和6110常被用於汽車底盤支撐臂，7xxx則用於提高強度。 |
| 熱處理 | 根據合金與強度要求而提供的內部 T4 處理方案（8 套）及 T6 人工老化處理方案（7 套） |
| 二次加工 | CNC 加工（52 台加工中心、30 台銑床）、銑削、振動磨削 |
| 表面處理 | 按要求進行陽極氧化（包括硬陽極氧化）、噴射粉碎、電子塗層或塗漆。 |
| 檢查 | 蔡司 CMM（4 臺）、硬度測試儀、分光光譜儀、熒光穿透線；可提供抗拉強度測試和疲勞測試 |
| 尺寸與公差 | 按客戶提供2D/3D圖紙 |
| 品質管理系統 | IATF 16949:2016、ISO 14001:2015 |
Forged Aluminum Wheel Hub Manufacturing Process
- 繪圖評估與 DFM我們確認合金、載荷方向和關鍵尺寸，然後執行 QForm 模擬，以預測金屬流動和缺陷風險。.
- 設計與製造銑刀組數（例如，阻斷刀和完成刀）視零件的複雜程度而定，銑刀輪廓則使用便攜式3D掃描儀進行檢查。.
- 熱鍛造600T–8,000T 熱鍛造壓 Presses 的閉式成形技術創造出持續的晶粒流，並遵循零件的輪廓。.
- 熱處理T4 溶液處理和 T6 人工老化處理均在廠內進行，參數由合金和強度要求設定。.
- CNC加工 以及完成孔、螺紋和接合面均經過機械加工，然後根據需要進行拋光、振動拋光、噴丸或陽極氧化處理。.
- 檢查與運輸尺寸、硬度及化學成分均通過 CMM、硬度測試儀及分光光度儀進行驗證，且所有批次的產品均遵照 IATF 16949 的標準進行追蹤。.
常見問題
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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