Precision Composite Materials Co., Ltd. 7075 Aluminum Battery Front Fixing Bracket

1. Background of cooperation

Our partner JG Composite Materials Co., Ltd. is a leading developer and manufacturer of carbon fiber composite materials, specializing in carbon fiber tubes, plates, automotive components, and pre impregnated materials, with applications covering aerospace, rail transit, new energy vehicles, and engineering machinery. It supplies over 60000 high-performance composite materials and metal components to global high-end equipment customers annually, focusing on integrated solutions that combine lightweight and high-strength.

2. Problems and challenges

For its new energy storage battery module (matched with carbon fiber composite material battery shell), JG Composite Materials Co., Ltd. is facing a bottleneck in developing the pre battery fixing bracket:

• Material matching gap: The high-strength requirements of carbon fiber shell frame materials require equivalent load-bearing capacity (static load ≥ 2000N) - ordinary aluminum (such as 6061) cannot meet the requirements.

• Complex structural processing: The curved contour and hollow design of the frame (aligned with the lightweight design of the carbon fiber shell) require high-precision processing to avoid deformation (crucial for assembly compatibility).

• Corrosion resistance requirement: The outdoor energy storage scenario requires a salt spray resistance of ≥ 500h, while maintaining electrical insulation (to meet the safety standards of the battery system).

3. Our solutions (services and products)

We have customized a 7075-T651 aluminum battery front bracket for JG carbon fiber composite material system:

Core material: 7075-T651 aluminum alloy (compliant with GB/T 3190) - tensile strength ≥ 520MPa (meeting 2000N static load, matching the performance of carbon fiber shell)+low density (2.81g/cm ³), maintaining the lightweight advantage of the module.

Precision manufacturing services:

• CNC milling with a dimensional tolerance of 0.03mm, ensuring alignment of the curved contour/hollow structure with the 3D model of the carbon fiber shell (100% assembly fit).

• One time clamping treatment to avoid deformation (key to the stability of the frame structure when paired with carbon fiber components).

Surface treatment service: Bare color anodizing (thickness ≥ 12 μ m) - achieving salt spray resistance of ≥ 500h while maintaining electrical insulation (crucial for battery system safety).

Rapid prototyping and batch service: deliver 12 prototypes within 8 days (2 days in advance), with a batch production capacity of 10000 pieces per month (synchronized with JG's carbon fiber module production pace).

4. Customer reviews

"The 7075 aluminum bracket perfectly matches our carbon fiber battery casing - it has undergone a 2200N static load test and a precision of 0.03mm ensures zero assembly issues. The anodized surface, after 600 hours of salt spray, fully meets the outdoor energy storage needs. We have secured an annual order of 10000 pieces and will expand our cooperation with other metal carbon fiber integrated components for new energy vehicles and aerospace projects. ”-Research and Development Director of JG Composite Materials Co., Ltd.