Precision Metal Stamping Manufacturer

High Precision Metal Stamping

As a precision metal stamping manufacturer, Onlink produces custom stamped components according to 2D/3D drawings, material specifications and assembly requirements.

Onlink operates under ISO 9001 and IATF 16949 quality management systems. Inspection resources include CMM equipment, 2D image measuring instruments and coating-thickness measurement equipment.

Our stamping capabilities cover conductive contacts, terminal springs, EMI shielding parts, automotive brackets and other drawing-based metal components requiring consistent dimensions, formed features and repeatable batch production.

Projects can include tooling development, progressive die stamping, blanking, bending, forming, deburring, surface treatment and dimensional inspection, allowing customers to source both the stamped part and related secondary processing through one manufacturing workflow.

Precision Stamped We Provide:

Stamped Part	Typical Materials	Thickness Range	Main Manufacturing Requirements
EMI Shielding Parts	Cold rolled steel, SPTE tinplate, stainless steel	0.3–4.0 mm	Blanking, bending, forming, dimensional control and surface treatment
Automotive Stamped Brackets	SPCC, SPHC, high-strength cold rolled steel	0.3–4.0 mm	Hole position, bending, riveting/tapping and structural fit
Electrical Conductive Contacts	Copper alloy, silver-plated copper, tin bronze	0.2–2.0 mm	High-speed stamping, contact geometry and conductive plating
Stamped Terminal Springs	Phosphor bronze, beryllium copper, SUS301/SUS304, H62 brass	0.1–1.5 mm	Progressive stamping, precision bending, elasticity and flatness

Progressive Die Stamping for Repeat Production

For components that combine several operations such as piercing, blanking, forming and bending, progressive die stamping allows multiple operations to be completed as the metal strip moves through successive die stations.

This process is particularly suitable for repeat-production components such as:

Electrical contacts
Spring terminals
Connector-related stamped parts
Small brackets
Shielding components
Other multi-feature precision stampings

Progressive tooling is useful where dimensional repeatability and production efficiency need to remain stable across larger production runs. High-ranking precision stamping manufacturers similarly position progressive die tooling as a core capability for high-volume, repeatable stamped components.

For custom projects, die structure should be developed around the actual part geometry, material thickness, bend sequence and critical dimensions rather than using a generic tooling solution.

Material Selection for Precision Metal Stamping

Material selection affects formability, spring behavior, conductivity, corrosion resistance and downstream surface treatment.

Copper and Copper Alloys

Suitable for conductive contacts and electrical connection components where electrical conductivity and contact performance are important.

Available options within the current stamped product range include:

Copper alloy
Tin bronze
Phosphor bronze
Beryllium copper
H62 brass

Stainless Steel

SUS301 and SUS304 can be used for spring components and other stamped parts requiring mechanical strength, elasticity or corrosion resistance.

Carbon and Cold-Rolled Steel

SPCC, SPHC and other cold-rolled steel materials can be used for structural brackets and stamped housings.

Tinplate

SPTE tinplate is suitable for selected shielding components where formed sheet structure and surface characteristics match the product requirement.

If your drawing specifies another material grade, provide the exact grade, temper and thickness for manufacturability review.

Secondary Operations After Metal Stamping

Many custom stamped parts are not complete when they leave the press.

Depending on the component, additional processing can include:

Precision bending
Deburring
Tapping
Riveting
Contact-area polishing
Nickel plating
Tin plating
Gold plating
Silver plating
Zinc plating
Black oxide
Powder coating

For electrical contacts and terminal springs, surface treatment may be selected according to conductivity, contact performance and corrosion requirements.

For structural stamped brackets, coating may instead be selected mainly for corrosion protection or finished assembly requirements.

Quality Control for Custom Stamped Parts

For OEM and automotive-related stamped components, production repeatability is as important as the first approved sample.

Onlink operates under ISO 9001 and IATF 16949 quality management systems. Inspection resources include CMM equipment, 2D image measuring instruments and coating-thickness measurement equipment.

Quality control covers:

Incoming Material Inspection
Verification of material and incoming production requirements.

In-Process Inspection
Dimensional and process checks during stamping and secondary operations.

Final Verification
Inspection of critical dimensions, surface condition and specified product requirements before delivery.

Batch Traceability
Production and order records are retained to support repeat manufacturing and quality review.

For critical stamped components, include the required inspection dimensions and acceptance criteria directly on the drawing or quality document.

Precision Stamping for Electrical, Automotive and Industrial Applications

Our precision stamped components are used in applications where small dimensional changes can affect electrical contact, assembly fit or structural positioning.

Typical applications include: