


FSW Liquid Cold Plate Parts (Friction Stir Welded liquid cold plates) are advanced thermal management components designed for high-power electronic cooling systems. Using Friction Stir Welding (FSW) technology, these cold plates achieve superior structural integrity, leak-proof performance, and excellent heat dissipation efficiency.
Compared with traditional brazed or welded cold plates, FSW liquid cold plate parts provide stronger bonding, lower thermal resistance, and higher reliability, making them ideal for demanding industrial and energy applications such as EV battery cooling, data centers, and power electronics.
As industries continue to increase power density, the demand for high-efficiency FSW cold plate solutions is rapidly growing.

The working principle of FSW liquid cold plate parts is based on solid-state friction stir welding and internal liquid cooling circulation:
A rotating FSW tool generates frictional heat along the joint line
The aluminum or copper material softens without melting
Plasticized material is mechanically stirred and forged together
A dense, defect-free weld structure is formed
Internal micro-channel or flow channel allows coolant to circulate
Heat is efficiently transferred from the heat source to the coolant
This process ensures high-strength sealing channels, preventing leakage while maintaining excellent thermal conductivity.
| Item | Specification |
|---|---|
| Material Options | Aluminum 6061, 6063, Copper (custom available) |
| Manufacturing Process | CNC machining + Friction Stir Welding (FSW) |
| Surface Treatment | Anodizing, nickel plating, passivation |
| Cooling Medium | Water, glycol, oil-based coolant |
| Pressure Rating | 0.5 – 2.0 MPa (customizable) |
| Temperature Range | -40°C to 150°C |
| Thermal Conductivity | 180–220 W/m·K (material dependent) |
| Leak Testing | 100% helium leak tested |
| Customization | OEM/ODM available |
These FSW liquid cold plate parts specifications can be fully customized based on thermal design requirements.
FSW liquid cold plate parts deliver rapid heat transfer, improving overall system cooling performance.
Friction stir welding ensures strong bonding and eliminates porosity and cracking risks.
The solid-state welding process enhances fatigue resistance and pressure durability.
Aluminum-based construction reduces system weight while maintaining thermal efficiency.
Internal flow channels can be optimized for specific thermal load requirements.
Excellent corrosion resistance ensures stable performance in harsh environments.
FSW liquid cold plate parts are widely used in high-power and high-heat density industries, including:
Used in battery packs to ensure safe operating temperature and extend battery lifespan.
Efficient cooling for CPUs, GPUs, and high-performance computing servers.
Applied in IGBT modules, converters, and power supply systems.
Provides stable thermal control for large-scale battery storage units.
Used in high-reliability thermal management systems.
Ensures stable operation of high-precision devices.
Compared with traditional brazed cold plates, FSW liquid cold plate parts offer:
Lower thermal resistance
Higher sealing reliability
Better pressure resistance
Improved structural durability
Greater design flexibility
Enhanced heat dissipation performance
These advantages make FSW technology one of the most advanced solutions for modern liquid cooling cold plate systems.
FSW Liquid Cold Plate Parts are a next-generation thermal management solution combining Friction Stir Welding technology, precision CNC machining, and optimized liquid flow channel design. They provide exceptional cooling efficiency, structural strength, and long-term reliability for high-performance industries.
If you are looking for a custom FSW liquid cold plate manufacturer or OEM solution, these products can be tailored to meet your exact thermal management requirements for EV, energy storage, and industrial applications.

Kingka Tech Industrial Limited
We specialize in Heat Sink、Liquid Cold Plate、precision CNC machining and our products are widely used in telecommunication industry, aerospace, automotive, industrial control, power electronics, medical instruments, security electronics, LED lighting and multimedia consumption.
Address:
Da Long New Village, Xie Gang Town, Dongguan City, Guangdong Province, China 523598
Email:
Tel:
+86 137 1244 4018