Brass Stamping Part

Brass stamping parts are manufactured from copper-zinc alloy strips. Their mechanical properties and electrical conductivity depend on the copper-zinc ratio, material temper, strip thickness, and manufacturing condition.

For electrical components, material selection must account for both forming behavior and service requirements. A brass terminal designed for repeated insertion needs sufficient spring characteristics, while a fixed relay bracket may prioritize dimensional stability and mechanical strength.

Brass Material Selection
Apollo supports brass material selection according to the mechanical and electrical requirements of each component.

Key Material and Processing Specifications

Precision Brass Stamping Tooling
For medium- and high-volume orders, progressive die stamping can combine multiple operations within one continuous production cycle.

Typical operations include:
1. Blanking: Cutting the brass strip into the required component profile.
2. Piercing: Producing mounting holes, slots and terminal openings.
3. Bending: Forming contact arms, terminal legs, and structural angles.
4. Embossing: Creating locating features, ribs and contact geometries.
5. Forming: Producing three-dimensional structures and complex profiles.
6. Cut-off: Separating finished components from the carrier strip.

Important tooling considerations:
Die clearance must match the brass alloy, thickness, and hardness.
Punch and die alignment affects burr formation and dimensional consistency.
Bend radius must be evaluated against material elongation to prevent cracking.
Springback compensation is required for repeatable terminal angles.
Tool wear must be monitored at piercing and forming stations.

For electrical terminals, burr direction is particularly important because an uncontrolled edge can interfere with assembly, insulation clearance, or mating contacts.

Brass stamping components used in electrical equipment often require additional finishing processes after forming. Surface treatment selection depends on electrical contact requirements, corrosion exposure, solderability, and the interface between the brass component and other materials.

Brass Surface Treatment Options
Apollo can evaluate the following surface finishing requirements according to component drawings and operating conditions.

Plating Thickness and Contact Performance
For electrical brass components, plating thickness must be specified according to the working environment and electrical requirements.

Recommended engineering considerations include:
Tin Plating: Define coating thickness, solderability, and oxidation resistance.
Nickel Plating: Specify coating thickness, hardness, and adhesion.
Silver Plating: Evaluate contact resistance, sulfide exposure, and surface wear.
Gold Plating: Consider the required contact cycles and underplate structure.

A nominal plating thickness alone does not establish electrical reliability. The contact force, contact area, mating material, operating temperature, and environmental exposure also affect long-term performance.

Joining and Assembly Processes
For brass electrical components requiring additional assembly, the joining method should be selected based on the material combination and mechanical loading.

Available engineering considerations include:
1. Resistance welding for compatible metal assemblies.
2. Brazing for specified brass-to-metal joining applications.
3. Mechanical riveting for permanent component fastening.
4. In-die assembly where the part geometry and production volume justify integrated operations.

For electrical contact assemblies, contact resistance and mechanical retention should be evaluated after joining. Cross-sectional inspection can also be specified when the joint structure requires verification.

Request Custom Technical Evaluation

The performance of brass stamping parts depends on raw material consistency, tooling condition, dimensional accuracy, and surface finishing. Apollo's inspection plan should be established around the critical-to-quality characteristics identified in the customer's drawing.

Brass Stamping Quality Inspection

Critical Dimensional Control
For brass terminals and connector components, inspection should prioritize:
Mounting hole diameter and center distance.
Terminal width and thickness.
Bending angle and formed height.
Contact area flatness.
Position of locating features.
Burr direction and edge condition.

A general tolerance of ±0.05 mm can serve as an initial reference for suitable stamped features. Tighter tolerances, including ±0.01 mm, should be assessed individually according to material thickness, feature geometry, die structure, and measurement capability.

Quality Management and Production Documentation
Apollo's website identifies IATF 16949 and ISO 3834 within its stated quality-system information. Certification validity, scope, and applicability should be confirmed against the actual certificates before making project-specific compliance commitments.

For automotive and electrical component programs, the following documents can be agreed during project development:
1. Material Mill Test Certificate (MTC).
2. Dimensional Inspection Report.
3. Plating Thickness Report.
4. Process Flow Chart.
5. PFMEA.
6. Control Plan.
7. Process Capability Analysis (CPK).
8. PPAP Level 3 submission, where required by the customer.

Are you sourcing brass stamping parts for relays, contactors, circuit breakers, switches, or electrical connectors?

Send Apollo your 2D engineering drawings, 3D CAD files, or existing component samples for a manufacturing assessment.

Please provide the following project information:

Material Grade: H62, H65, H68, C2600, C2680 or customer-specified alloy.

Material Thickness: Strip thickness and required temper.

Component Drawings: STEP, DWG, DXF, or PDF.

Surface Treatment: Tin, nickel, silver, or other specified coatings.

Annual Demand: Estimated annual quantity and batch requirements.

Quality Requirements: Dimensional tolerances, inspection criteria, and PPAP documentation.

What Apollo Can Provide:

Drawing review and DFM feedback.

Brass material and stamping process evaluation.

Custom die development and sample production.

Dimensional and surface treatment inspection.

Production planning for repeat OEM orders.

Quotation based on drawings, specifications, and order volume.

Submit your engineering drawings to Xiamen Apollo Electric Co., Ltd. Our engineering and sales teams can review complete project information and target a response within 24 hours, subject to drawing completeness and technical requirements.

We're professional brass stamping part manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy high-grade brass stamping part from our factory.