Ratchet
説明
Forged Aluminum Bicycle Ratchet: Externally Splined Barrel Drive Part
The forged aluminum bicycle ratchet is a barrel-shaped drive part for bicycle hubs or drivetrains. It is a cylindrical body with multiple axial spline teeth around its outside and a larger-diameter flange ring at one end. The external splines mate with cassette sprockets or cogs to transmit torque, while the flange ring acts as an axial locating face or pawl engagement surface.
Machining external splines requires milling or hobbing; forging the splines to near-net shape shortens machining and keeps grain flow following the tooth form. Al Forge Tech (AFT) evaluates cold or hot forging by spline accuracy and wall thickness, finish-turns and CNC-finishes the diameters and splines after heat treatment, and offers hard anodizing for wear-resistant tooth faces.
主な機能
- External-spline barrel and flange ring formed in one piece
- Near-net splines shorten milling or hobbing time
- Diameters and splines turned and CNC-finished
- Hard anodizing for wear-resistant tooth faces
Forged Aluminum Bicycle Ratchet Specifications and Manufacturing Capability
| 商品 | 詳細 |
|---|---|
| 製品カテゴリー | Aluminum Forging Bicycle Parts |
| 申請 | Bicycle hubs (e.g. freehub bodies), ratchets and drivetrains |
| 主なプロセス | Hot or cold forging, selected by spline accuracy and wall thickness (hot 600T–8,000T / cold 260T–2,500T) |
| 素材 | お客様の仕様に合わせて選択可能。2xxx、5xxx、6xxx、7xxx シリーズのアルミニウム合金（例：2014、6061、6082、7075） |
| 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 | ザイツCMM（4台）、硬度計、分光計、蛍光透過検査ライン |
| 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 Bicycle Ratchet 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。.
- Cold forging: cold forming on 260T–2,500T presses, suited to thin-walled, tubular and dimensionally repeatable parts.
- 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 do I choose between an aluminum and a steel ratchet?
An aluminum ratchet is lighter and suits weight-focused hub and drivetrain designs, but its tooth surface is softer than steel, so hard anodizing and controlled contact pressure are usually needed. A steel ratchet is more wear-resistant and suits high-load or long-life designs. The material should be evaluated against the mating parts and loads; AFT focuses on aluminum forging solutions.
How is the external spline fit with the cassette ensured?
Spline profile, tooth thickness and measurement over pins determine how tightly the cassette fits. AFT forges near-net splines, finishes them to tolerance after heat treatment and measures tooth form and OD with CMM, a profile meter and gauges. If hard anodizing follows, machining dimensions allow for film thickness so the treated part still meets the fit tolerance.
Can the Forged Aluminum Bicycle Ratchet be anodized or given other surface finishes?
Yes. Al Forge Tech offers anodizing (including hard anodizing), shot blasting, vibratory finishing, e-coating and painting, plus pickling and ultrasonic washing lines to clean parts after machining. Please note the finish type and film thickness on the drawing so machining allowances and cosmetic standards for the Forged Aluminum Bicycle Ratchet can be evaluated together.
How do you keep the Forged Aluminum Bicycle Ratchet 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 Bicycle Ratchet stable across lots.
What information do you need to quote the Forged Aluminum Bicycle Ratchet?
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 Bicycle Ratchet 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 Bicycle Ratchet
Developing a new Forged Aluminum Bicycle Ratchet 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。 Aluminum Forging Bicycle Parts 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。.
