2026/8/3 - Vertical Medium Frequency Spot Welding Machine for 1.0mm Copper Sheet and 2.0mm Nickel-Plated Copper Wire

On August 3, 2026, PDKJ conducted a sample welding test using a vertical medium frequency spot welding machine to join a 1.0mm copper sheet with 2.0mm nickel-plated copper wire.

The test focused on evaluating the suitability of medium frequency resistance spot welding for copper-based components. Because copper has high electrical and thermal conductivity, precise welding current control and suitable electrode pressure are important for achieving stable welding results.

Application Overview

Copper Welding Requirements

The sample involved joining a 2.0mm nickel-plated copper wire to a 1.0mm copper sheet.

Copper's high electrical and thermal conductivity can make resistance welding more demanding than welding conventional steel materials. The nickel-plated surface of the copper wire also requires appropriate process parameters to achieve a reliable electrical and mechanical connection.

The main objectives of the sample test were to evaluate:

• Welding stability
• Electrical and mechanical connection
• Welding current control
• Electrode pressure
• Contact condition
• Welding repeatability

Vertical Medium Frequency Spot Welding Solution

PDKJ used a vertical medium frequency spot welding machine for the sample application.

The machine uses a medium frequency inverter welding power supply to provide controlled welding current and welding time. The vertical electrode structure allows the welding force to be applied in a controlled direction to the copper wire and sheet.

For this application, welding parameters can be adjusted according to the copper sheet thickness, wire diameter, nickel-plated surface condition, electrode configuration, and required joint performance.

Welding Process

Before welding, the 1.0mm copper sheet and 2.0mm nickel-plated copper wire are accurately positioned at the required welding location.

The electrodes apply controlled pressure to the wire and copper sheet. The welding controller then supplies the preset current for a specific duration, generating localized resistance heat at the contact area.

During sample testing, different parameters can be evaluated, including:

• Welding current
• Welding time
• Electrode pressure
• Electrode configuration
• Contact area
• Wire positioning
• Welding cycle time

The goal is to establish a suitable process window for stable copper-to-wire welding.

Key Advantages

Precise Medium Frequency Current Control

The medium frequency inverter system provides controlled welding current, which is important when processing highly conductive copper materials.

Adjustable Welding Parameters

Welding current and time can be adjusted according to the copper sheet thickness, wire diameter, surface condition, and required welding performance.

Controlled Electrode Pressure

Appropriate electrode pressure helps maintain stable contact between the nickel-plated copper wire and copper sheet during the welding cycle.

Accurate Workpiece Positioning

A suitable fixture can help maintain the correct position of the copper wire relative to the sheet, supporting repeatable welding results.

Repeatable Welding Process

Once suitable welding parameters are established, the process can be reproduced for similar copper wire and sheet applications.

Challenges of Copper and Nickel-Plated Copper Welding

Copper has high electrical and thermal conductivity, which can influence the distribution of welding heat during resistance welding.

For the 1.0mm copper sheet and 2.0mm nickel-plated copper wire application, welding parameters need to be carefully selected to generate sufficient heat at the contact area while controlling excessive heat transfer into the surrounding material.

The nickel plating on the copper wire also makes surface condition an important factor in the welding process.

Therefore, actual sample testing is recommended to determine suitable current, welding time, electrode pressure, and electrode configuration.

Why Conduct a Sample Welding Test?

Testing the actual copper components provides a practical way to verify the welding process before production.

For this application, the sample test can help evaluate:

• Weld strength
• Electrical connection
• Welding stability
• Contact resistance
• Weld appearance
• Electrode performance
• Welding cycle time
• Process repeatability

The results can then be used to optimize the final welding parameters and machine configuration.

Potential Applications

Copper sheet and nickel-plated copper wire welding can be found in various electrical and conductive component applications, depending on the specific product design.

Potential applications include:

• Electrical connectors
• Copper terminals
• Conductive components
• Wire assemblies
• Electrical contacts
• Power components
• Battery-related components
• Copper conductor assemblies

The appropriate welding solution depends on the copper material, wire diameter, sheet thickness, surface treatment, joint structure, and required electrical performance.

From Sample Testing to Production

After completing the sample welding test, PDKJ can further optimize the welding parameters according to the customer's production requirements.

For higher-volume applications, the vertical medium frequency spot welding machine can be configured with customized fixtures, wire positioning mechanisms, feeding systems, and other automation components.

This allows the welding process to move from manual sample testing toward a more standardized and repeatable production workflow.

Conclusion

This August 3, 2026 sample welding case demonstrates the application of a vertical medium frequency spot welding machine for joining a 1.0mm copper sheet with 2.0mm nickel-plated copper wire.

Through controlled welding current, welding time, electrode pressure, and workpiece positioning, the system provides a practical approach for evaluating copper-to-wire resistance welding applications.

PDKJ provides medium frequency spot welding machines and customized resistance welding solutions for copper sheets, copper wires, nickel-plated components, electrical terminals, conductive parts, and other industrial applications.

For a specific copper welding project, the process can be developed according to the material, wire diameter, sheet thickness, surface treatment, joint structure, and required electrical or mechanical performance.