EV Component Welding Services – Friction Stir Welding (FSW) Solutions

FSW Welding Services for EV Components 

 We offer specialized friction stir welding services for a wide range of EV components and thermal management applications: EV Battery Tray Welding Leak-proof welding for large aluminum battery enclosures used in EV platformsEV battery tray welding serviceEV Motor Housing Welding High-precision welding for aluminum motor housings with strict dimensional and sealing requirementsmotor housing welding serviceEnergy Storage Liquid Cold Plate Welding Reliable sealing solutions for ESS and BESS cooling systems with long-channel structuresenergy storage liquid cold plate weldingFiber Laser Cooling Module Welding Precision welding for aluminum and aluminum–copper cooling components used in high-power laser systemsfiber laser cooling module welding

Why Friction Stir Welding for EV Manufacturing

Friction stir welding (FSW) is a solid-state joining process that delivers superior performance compared with traditional welding methods.

• No porosity or cracking, ensuring defect-free welds

• Low heat input, minimizing distortion

• Excellent sealing performance for cooling systems

• High repeatability for stable batch production

Common Welding Challenges We Solve

EV and energy storage manufacturers often face critical production challenges:

• Leakage in battery trays and cooling plates

• Distortion in large aluminum structures

• Inconsistent weld quality across batches

• Difficulty in aluminum–copper joining

• Complex coordination between machining and welding suppliers

Our FSW welding services directly address these issues, helping improve product reliability and reduce production risks.

Our Welding Capabilities

• Welding length up to 5 meters

• Aluminum alloys (5xxx / 6xxx / 7xxx series)

• Aluminum–copper dissimilar metal welding

• Thin-wall and large-structure welding capability

• CNC machining + FSW integrated production

• Full process monitoring and traceability

Applications

• Our friction stir welding services are widely used in:

• EV battery systems and enclosures

• Electric motor housings

• Liquid cooling and thermal management systems

• Power electronics enclosures

• Industrial aluminum structures

Flexible Cooperation Options

We provide flexible cooperation models based on your production needs:

1. Welding-Only Service
You provide machined parts, we complete precision FSW welding

2. Integrated Manufacturing
Machining + welding + inspection + delivery

3. Process & Equipment Support
Custom FSW solutions for building your own production capability

Extended Welding Solutions

In addition to standard EV components, we also support customized friction stir welding solutions for various aluminum and dissimilar metal parts.

This includes complex structures, thermal components, and precision assemblies based on your drawings and production requirements.

CTA

Looking for a reliable aluminum friction stir welding service supplier for EV components, cooling plates, or structural parts?

Send us your drawings or specifications — we provide fast feasibility analysis, process recommendations, and competitive quotation support.