Brass Stamping parts

　　Brass Stamping Parts

　　What is Brass Stamping?

　　Brass Stamping is a precision forming process specifically designed for brass (copper-zinc alloy) sheets. It processes brass sheets into various structural parts, functional parts, and decorative parts through customized molds and adaptive stamping equipment. Brass possesses characteristics such as excellent electrical and thermal conductivity (conductivity 65%-90% of copper), good formability (elongation ≥30%), natural corrosion resistance (superior to ordinary steel), attractive golden yellow appearance, and medium strength (tensile strength 300-600MPa). The stamping process achieves integrated and efficient forming of parts, with core features of "triple advantage superposition of excellent conductivity/thermal conductivity, good formability, and attractive appearance", making it suitable for mass production scenarios with comprehensive requirements on conductivity, corrosion resistance, and appearance.

　　Compared with steel, aluminum alloy, and titanium alloy stamping, its core difference lies in adapting to brass's characteristics of "soft texture, easy cutting and forming but prone to scratches, and outstanding electrical/thermal conductivity". By optimizing mold polishing, stamping parameters, and surface protection processes, it maximizes brass's functional and appearance advantages while ensuring forming accuracy, and is one of the core forming solutions in electronics, hardware, decoration and other industries.

　　How It Works

　　The core of brass stamping is "balancing function retention and precision forming". It adapts to brass's physical properties through process optimization, achieving a balance between mass production and quality stability. The key processes and control points are as follows:

　　Brass Sheet Preparation: Select corresponding grades of brass sheets (such as H62, H65, H68) with a thickness of 0.2mm-8mm; pre-treatment includes oil-free surface cleaning (removal of oxide film and oil stains) and precision leveling (flatness error ≤0.01mm/m). Cold-rolled brass sheets are preferred (higher dimensional accuracy and smoother surface, suitable for precision parts and decorative parts).

　　Mold Adaptation and Anti-scratch Design: Molds are made of Cr12MoV hardened steel or cemented carbide, with surface polishing treatment (roughness Ra≤0.02μm) to avoid scratching the brass surface; the mold clearance is set to 1.08-1.15 times the material thickness (adapting to brass ductility), and fillet design (R≥0.2mm) reduces stress concentration; the blank holder is made of polyurethane elastic material, applying uniform pressure (0.2-1.5MPa) to prevent wrinkling and surface indentation.

　　Precision Stamping Forming: Select equipment (CNC punch press, mechanical punch press, hydraulic punch press) according to part complexity, and control the stamping speed (15-180 times/minute, adapting to brass forming efficiency); simple parts adopt single-pass forming, while complex parts (multi-bending, dense small holes, deep drawing) adopt 2-3 stepwise forming passes. Low-temperature stress relief annealing (150-200℃) can be performed after each pass to avoid springback; use chlorine-free

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