Custom Precision Machined Brass Stamping Parts - Leading China Suppliers and Factory for Quality Manufacturing
Custom Precision Machined Brass Stamping Parts - Leading China Suppliers and Factory for Quality Manufacturing
We understand your true needs. You require custom precision machined brass stamping parts that not only perfectly conform to drawings but also operate reliably in real-world environments, whether facing salt spray corrosion, continuous vibration, or electrical conductivity. No compromise between cost and precision is necessary. Our CNC stamping lines offer burr-free edges, consistent hardness, and end-to-end material traceability (grades range from C2680 to H59).
Material and Performance Advantages
Brass is not a single material, but a family of alloys with adjustable properties. Our custom precision machined brass stamping parts are available in different grades of brass to meet your specific needs:
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High Electrical and Thermal Conductivity: C26000 (cassette brass) has a conductivity of approximately 28% IACS, suitable for electronic connectors and terminals. For higher conductivity, C26800 or custom alloys with a copper content >70% are available.
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Resistance to Stress Corrosion Cracking: For valves, fittings, and other applications in humid or ammonia-containing environments, we recommend C37700 (free-machining brass) with stress-relief annealing, ensuring excellent resistance to stress corrosion cracking even after cold deformation.
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Lead-Free Compliance: For drinking water contact or RoHS-sensitive applications, we offer C46500 (bismuth-containing brass) or C69300, with a lead content <0.25%, while maintaining good cold heading performance.
Technical Parameters
| Parameter | Scope of Capability |
|---|---|
| Commonly used material grades | C26000, C26800, C36000, C37700, C28000, Custom Alloys |
| Maximum part size | 200mm × 150mm (larger sizes available upon request) |
| Tolerance capability | ±0.005mm (standard), ±0.002mm (ultra-precision) |
| Surface treatment | Nickel plating, tin plating, zinc plating, passivation, polishing, powder coating |
| Secondary processing | Deburring, heat treatment, tapping, assembly, laser marking |
Application
Electronics Industry
USB-C connector housings, relay contacts (conductivity >98% IACS)
Automotive Industry
ABS sensor rings, fuel system terminals (high temperature resistance 200℃)
New Energy Industry
Electric vehicle battery connectors, photovoltaic inverter terminals
Plumbing Industry
Valve cores, garden connectors (lead-free brass, RoHS/REACH compliant)
FRIMA Manufacturing Process
1
Progressive Die Design and Simulation: Before die opening, we use AutoForm or Dynaform to perform finite element analysis on material flow and stress distribution during the stamping process, predicting springback and compensating for die compensation. This allows us to control springback within ±0.01mm before trial molding.
2
In-Machine Measurement and Closed-Loop Feedback: Each press is equipped with a high-precision displacement sensor and a piezoelectric load monitor. When dimensional drift is detected, the system automatically adjusts the slide stroke or feed pitch, eliminating the need for manual inspection during downtime.
3
Deburring and Edge Finishing: For parts with zero tolerance for burrs, such as electronic connectors, we use centrifugal grinding or electrolytic deburring processes to ensure smooth contact edges with a radius <0.02mm, avoiding arcing or assembly interference.
Differentiated Value: We not only provide parts but also certification of a process capability index (Cpk) ≥ 1.33, helping you avoid incoming material inspection or simplifying the warehousing process.
Frequently Asked Questions
Q
Do you have IATF 16949 certification?
Yes, we are also ISO 9001 and ISO 14001 compliant, and meet RoHS and conflict mineral requirements.
Q
Do you do CNC machining for individuals or just companies?
We work with a wide range of clients, like Fortune 500 companies (such as Wurth Group).
Q
How does CNC machining achieve such precision?
Computer-driven electric signals are emitted to control motors that are capable of tiny, incremental movements. These small movements provide the exact precision needed to create parts for today's technology.
Q
What are the advantages of CNC machining compared to manual machining?
CNC machining is a computer-aided machining technology capable of producing intricate and complex parts and shapes. Its automation precision and repeatability are unmatched by manual machining. This process can adapt to temporary or frequent design changes, making it particularly suitable for handling multiple application projects in a short period of time. Furthermore, the efficiency of CNC machining also helps reduce costs.
Q
Which brass grades do you offer?
C26000, C26800, C36000, C37700, and lead-free options (C46500, C69300) compliant with RoHS.
Q
What surface treatments are available for brass stamping parts?
We offer nickel plating, tin plating, zinc plating, passivation, polishing, and powder coating. Our team can recommend the most suitable surface treatment based on your application environment and performance requirements.