Functional Teeth

描述

Forged Aluminum Bicycle Toothed Driver: Internally Toothed Cup and Shaft in One Piece

The forged aluminum bicycle toothed driver (functional teeth) is a toothed part for bicycle drivetrain or ratchet mechanisms. It consists of a cup with internal teeth and a cylindrical shaft extending from one end. Grooves are arranged around the inner wall of the cup to engage pawls, splines or mating teeth and transmit torque. Cup and shaft are formed in one piece, reducing fit errors between assembled parts.

Machining internal teeth requires dedicated operations such as gear shaping or broaching, which take time. Forging the tooth grooves to near-net shape first greatly shortens machining and keeps grain flow following the tooth form. Al Forge Tech (AFT) evaluates cold or hot forging by tooth accuracy and wall thickness, has an in-house broaching machine for finishing internal teeth, and inspects tooth form and concentricity with CMM and gauges.

主要功能

Internally toothed cup and shaft formed in one piece
Near-net forged teeth shorten shaping or broaching time
In-house broaching for finishing internal teeth
Tooth form and concentricity measured on CMM

Forged Aluminum Bicycle Toothed Driver Specifications and Manufacturing Capability

商品	詳細
產品類別	Aluminum Forging Bicycle Parts
申請	Bicycle hub, ratchet and drivetrain toothed parts
主要過程	Hot or cold forging, selected by tooth accuracy and wall thickness (hot 600T–8,000T / cold 260T–2,500T)
材質	Selected to customer specification; 2xxx, 5xxx, 6xxx and 7xxx series aluminum alloys available (e.g. 2014, 6061, 6082, 7075)
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	Zeiss CMM (4 units), hardness testers, spectrometer, fluorescent penetrant inspection line
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 Bicycle Toothed Driver 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。.
Cold forging: cold forming on 260T–2,500T presses, suited to thin-walled, tubular and dimensionally repeatable parts.
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

Are the internal teeth forged or machined?

Both can be combined. Forging produces a near-net tooth profile to reduce machining; where tooth form and fit accuracy are critical, the teeth are finished to drawing tolerance by AFT’s in-house broaching or CNC machining. AFT recommends the split between forming and machining at quotation based on tooth count, profile and tolerance grade, balancing die life and finished accuracy.

How can wear resistance of an aluminum toothed part be improved?

Aluminum teeth under repeated engagement must be protected against wear. Common practice is to select a suitable high-strength alloy, raise hardness by T6 heat treatment and add hard anodizing to form a hard oxide layer on the tooth faces. AFT offers both T6 heat treatment and hard anodizing; actual wear performance must be validated against the mating part’s material and load conditions.

Can the Forged Aluminum Bicycle Toothed Driver 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 Toothed Driver can be evaluated together.

How do you keep the Forged Aluminum Bicycle Toothed Driver 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 Toothed Driver stable across lots.

How are MOQ and lead time for the Forged Aluminum Bicycle Toothed Driver determined?

MOQ and lead time depend on part size, number of die sets, alloy and machining scope, and are confirmed in the quotation after drawing review. The typical sequence is die development, forged samples, sample approval and then mass production. Sharing your annual volume and call-off schedule helps us plan dies and capacity for the Forged Aluminum Bicycle Toothed Driver.

Request a Quote for the Forged Aluminum Bicycle Toothed Driver

Developing a new Forged Aluminum Bicycle Toothed Driver 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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若要比較相似的零件，請瀏覽 Aluminum Forging Bicycle Parts 以及我們的汽車鋁合金鍛造應用, 或參觀公司簡介關於我們的設備與認證。.

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