Aluminum bicycle rack precision Trustworthy cycling accessories

CNC-machined aluminum bicycle frames are precision engineering processes that transform high-performance aluminum alloys into core load-bearing components with excellent strength-to-weight ratio and structural aesthetics. As a key component connecting the frame and wheels and directly bearing the impact of riding, the core of its manufacturing process lies in ensuring absolute dynamic structural safety and long-term fatigue life while achieving lightweighting of complex, irregularly shaped structures. This requires the manufacturing process to integrate topology optimization design, high-rigidity machining, and scientific strengthening treatments.

Aluminum bicycle rack precision Trustworthy cycling accessories

I. Simulation-Based Structural Design and Verification

1. The core of this stage is to determine the material flow direction and principal stress paths, and based on this, generate a 3D model that balances aesthetics and performance. Simultaneously, dynamic fatigue simulation must be performed to predict its theoretical lifespan, mitigating failure risks from the design stage.

II. High-Rigidity Clamping and Multi-Axis Machining

1. Integrated Blank and Stress Pretreatment: Aerospace-grade pre-stretched thick aluminum alloy plates are selected as blanks, with uniform internal structure and low residual stress. Vibration aging or sub-temperature heat treatment can be performed before machining to further stabilize the material state, laying the foundation for controllable deformation during subsequent machining.

2. Multi-faceted High-Precision Reference Machining: First, precise machining of reference surfaces and process positioning holes for all subsequent processes. Due to the complex structure of the bracket, specialized combination fixtures or modular vacuum chucks are often required to ensure consistent positioning and sufficient rigidity of the workpiece when machining multiple surfaces, preventing cutting vibration.

3. Layered Progressive High-Efficiency Cutting: Roughing employs a strategy of large-diameter tools and high metal removal rate to quickly remove most non-structural defects. For complex internal irregular curved surfaces and weight-reduction holes, the capabilities of five-axis linkage must be fully utilized for multi-angle continuous milling to ensure surface quality and contour accuracy.

III. Strengthening Treatment and bicycle rack

1. Heat Treatment and Surface Strengthening: The machined bracket undergoes T6 or T73 series solution aging treatment to achieve the highest specific strength.

2. Non-destructive Testing and Accuracy Verification: On a coordinate measuring machine, all mounting holes and contact surfaces are scanned to full dimensions to ensure absolute precision in fit with the frame and wheels.

3. Sampling and Fatigue Testing: In mass production, samples must be randomly selected for extreme static load testing and bench fatigue testing. These tests simulate impacts and cyclic loads several times greater than actual usage conditions, using measured data to verify the safety factor and lifespan. This is the final line of defense for ensuring riding safety.

The CNC machining of aluminum bicycle frames is a systematic engineering project integrating computational mechanics, advanced materials, and extreme condition testing.

Company Profile

    We are a manufacturer integrating industry and trade. We have more than 20 years of experience in production technology. We are located in Dongguan City, Guangdong Province, China. We have advanced high-end professional production and processing technology, and are committed to innovative R&D and production. After years of  market tempering and exploration, it has high-quality   technical management personnel, experienced designers, R&D personnel and a   perfect company management system cnc precision.

5-axis CNC workshop

         Our factory has a plant area of about 2,000 square meters and masters core processing technologies. It has high-end precision production equipment cnc precision: CNC lathes, 5-axis CNC, 4-axis CNC, stamping equipment, die-casting equipment, etc. 2.5-dimensional detection equipment ​

two-dimensional testing

cnc precision surface treatment

          For surface treatment, our suppliers have been working with us for many years. They have rich experience and are familiar with all the quality requirements of each other. The quality is stable and more guaranteed. Such as: heat treatment, spray painting, powder coating, blackening, silver/gold plating, electrolytic polishing, nitriding, phosphating, nickel/zinc/chromium/TiCN plating, anodizing, polishing, passivation, sandblasting, galvanizing, heat treatment , hardening, laser marking, etc. according to customer requirements. Aluminum alloy surface oxidation

Product Packaging

Packaging Details

1. Commercial packaging: 1pc/plastic bag + color box +carton + pallet;
2. Industrial packaging: (1). plastic tube + carton + pallet; (2). plastic bag + kraft paper + carton + pallet;
3. According to the requirement of customer.

FAQ

Q1: Where can I get product & price information?

A1: Send us an inquiry e-mail, we will contact you once we received your mail.

Q2: How long will I get the sample?

A2: Depends on your specific items, within 3-7 days generally.

Q3: What kinds of information do you need for a quote?

A3: Kindly please provide the product drawings in PDF, if provide in STEP or IGS will be better.

Q4: What are the payment terms?

A4: We accept 50% as a payment deposit, when the goods are prepared, we shoot photos or videos for your check, and then you can pay the balance. For small quantities, we accept Paypal, the commission will be added to the order. For big amounts, T/T is preferred.

Q5: How to deliver the goods?

A5: We deliver the products by courier company.

Q6: Are you a trading company or factory?

A6: We are factory direct with 17 experienced engineers and more than 50 employees as well approximate 3,000m2 workshop area.

Q7: What shall we do if we don't have drawings?

A7: Please send your sample to our factory, then we can copy and provide you better solutions. If send us pictures or drafts with dimensions(Length, Height, Width), CAD or 3D file will be made for you.

Q8: Can we get some samples before mass production?

A8: Absolutely yes.

Q9: Will my drawings be safe after sending them to you?