Bicycle Parts E-13
Description
Bicycle Forging E-13: Tapering Arm Forging with Flat Paddle End
Bicycle forging E-13 is an arm-type aluminum forging developed by Al Forge Tech (AFT) to the customer’s drawing. One end is a round bar that transitions smoothly into a wide flat paddle at the other end, with the section changing from round to flat along the arm. The flat end can be machined with mounting holes or used as a clamping or connecting face, as is common on bicycle operating levers, support arms and connectors.
Machining a round-to-flat transition from bar removes a lot of material; forging presses the changing section directly, with grain flow turning smoothly into the flat end, combining good material yield with strength. After hot forging, AFT can heat treat, CNC-machine mounting holes and faces, and finish the part by anodizing or shot blasting.
Key Features
- Round section transitions smoothly into a flat paddle end
- Grain flow follows the section change continuously
- Flat end machinable with mounting holes or clamping faces
- Delivered as forged blank, semi-finished or finished part
Bicycle Forging E-13 Specifications and Manufacturing Capability
| Item | Details |
|---|---|
| Product category | Aluminum Forging Bicycle Parts |
| Product No. | E-13 |
| Application | Bicycle operating levers, support arms and connectors (to customer design) |
| Primary process | Closed-die hot forging (hot forging presses 600T–8,000T) |
| Material | Selected to customer specification; 2xxx, 5xxx, 6xxx and 7xxx series aluminum alloys available (e.g. 2014, 6061, 6082, 7075) |
| Heat treatment | In-house T4 solution treatment (8 units) and T6 artificial aging (7 units), set by alloy and strength requirement |
| Secondary machining | CNC machining (52 machining centers, 30 lathes), deburring, vibratory finishing |
| Surface finish | Anodizing (including hard anodizing), shot blasting, e-coating or painting, as required |
| Inspection | Zeiss CMM (4 units), hardness testers, spectrometer, fluorescent penetrant inspection line |
| Dimensions and tolerances | Per customer 2D/3D drawings |
| Quality system | IATF 16949:2016, ISO 14001:2015 |
Bicycle Forging E-13 Manufacturing Process
- Drawing review and DFM: we confirm alloy, load direction and critical dimensions, then run QForm simulation to predict metal flow and defect risk.
- Die design and manufacturing: the number of die sets (for example, blocker and finisher dies) is planned around part complexity, and die contours are checked with a portable 3D scanner.
- Hot forging: closed-die forming on 600T–8,000T hot forging presses creates a continuous grain flow that follows the part contour.
- Heat treatment: T4 solution treatment and T6 artificial aging are performed in-house, with parameters set by alloy and strength requirement.
- CNC machining and finishing: holes, threads and mating surfaces are machined, followed by deburring, vibratory finishing, shot blasting or anodizing as required.
- Inspection and shipment: dimensions, hardness and chemical composition are verified with CMM, hardness testers and a spectrometer, with lot traceability kept under IATF 16949.
FAQ
How does E-13 differ from E-12?
E-12 ends in a round boss suited to a pivot or spline connection; E-13 ends in a wide flat paddle suited to mounting holes or a clamping face. Both are arm-type forgings developed to customer drawings, and the choice of shape depends on how the part is assembled and loaded.
How is dimensional consistency controlled on a forging with a changing section?
Material flow varies greatly through the transition zone and must be precisely controlled by the die. AFT confirms fill at each section with QForm during die design, checks first, middle and last pieces in every production lot, reworks the die when wear causes dimensional drift, and measures key sections on CMM.
How are MOQ and lead time for the Bicycle Forging E-13 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 Bicycle Forging E-13.
Can you assess forging feasibility while the Bicycle Forging E-13 is still in design?
Yes. Al Forge Tech works mainly as an OEM supplier, and our engineers can give design-for-manufacturability (DFM) feedback at the concept or drawing stage, such as adjusting thin ribs, abrupt section changes or draft angles to avoid laps and underfill. QForm simulation predicts metal flow early, and the results are cross-checked against our die design experience.
Can the Bicycle Forging E-13 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 Bicycle Forging E-13 can be evaluated together.
Request a Quote for the Bicycle Forging E-13
Developing a new Bicycle Forging E-13 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.
- Online inquiry: Contact Us
- Email: [email protected]
To compare similar parts, browse Aluminum Forging Bicycle Parts and our automotive aluminum forging applications, or visit About Us for our equipment and certifications.
