Production of electrical brass stamped parts: Is brass a suitable material for stamping?

Electrical Metal Brass Stamping Parts require precise control over copper-zinc phase boundaries, tensile strength parameters, and progressive die clearances to achieve electrical conductivity levels ≥ 28% IACS while maintaining yield strengths exceeding 350 MPa. As global OEMs demand tighter dimensional tolerances down to ± 0.005 mm for high-density power distribution units and EV relay architectures, material selection and multi-stage stamping parameters dictate long-term operational reliability under IEC 60947 compliance frameworks.

Brass alloys, primarily binary copper-zinc systems such as C2680 (Cartridge Brass) and C2600, exhibit exceptional cold-workability and strain-hardening characteristics. When utilized in progressive die stamping, these materials accommodate severe plastic deformation without micro-cracking along grain boundaries.

The integration of advanced press machinery allows Xiamen Apollo Electric Co., Ltd. to maintain strict micro-hardness profiles, preventing springback inconsistencies common in lower-grade copper alloys. Below is a comparison of common brass grades utilized in electrical component manufacturing:

Executing high-speed, multi-station progressive stamping for Electrical Contact Assemblies Brass Stamped Parts demands rigorous control over clearance ratios, typically maintained at 6% - 8% of material thickness. Insufficient clearance accelerates punch wear and induces burr formation, while excessive clearance causes material rollover and dimensional distortion.

Critical Process Parameters

• Punch Velocity: Controlled at 120 - 180 strokes/min to minimize thermal distortion during piercing and blanking operations. Lubrication Viscosity: Synthetic chlorinated-free drawing oils applied via automated micro-dispensers to eliminate galling on complex formed flanges.
• Residual Stress Relief: Post-stamping low-temperature annealing executed in controlled protective atmospheres to prevent stress corrosion cracking (SCC) in accordance with ASTM B858 standards.

Electrical components deployed in industrial automation, smart metering, and automotive powertrain systems are routinely exposed to aggressive atmospheres, humidity, and salt spray. Brass inherently develops a protective patina rich in zinc oxide, passivating the underlying substrate against aggressive oxidation.

To satisfy global environmental directives, all manufactured Stamping Riveting Electrical Brass Press Parts adhere strictly to RoHS and REACH mandates. Optional electroplated finishes-such as bright tin (Sn 3-5μm), matte tin, or selective nickel underplating-are applied via automated reel-to-reel plating lines to guarantee low contact resistance (≤ 5 mΩ) across extended operating lifecycles exceeding 10⁶ mechanical cycles.

Operating under IATF 16949 and ISO 9001 quality management systems, Xiamen Apollo employs rigorous multi-tier inspection protocols. Dimensional verification utilizes high-resolution optical profile projectors and automated 2D/3D coordinate measuring machines (CMM) with sub-micron accuracy. Furthermore, salt spray testing (ASTM B117) is routinely conducted to verify that plated Brass Metal Stampings withstand a minimum of 96 - 240 hours of neutral salt spray without base metal oxidation.

Eliminate supply chain friction, reduce material waste, and secure strict dimensional compliance by partnering directly with Xiamen Apollo Electric Co., Ltd. Equipped with high-tonnage precision stamping presses, in-house tool and die fabrication shops, and stringent IATF 16949 laboratory testing facilities, we deliver engineered metal components built to withstand the rigorous demands of global electrical infrastructure and electric vehicle architectures.

Submit your CAD drawings or technical specifications of Electrical Metal Brass Stamping Parts today for a comprehensive DFM review and competitive factory-direct quotation within 24 hours.