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Liquid Cold Plate With Friction Stir Welding Process Friction Stir Welding（FSW）
Liquid Cold Plate With Friction Stir Welding Process Friction Stir Welding（FSW）
Specifications
Brand Name :
UCHI
Certification :
UL.VDE,SGS,REACH,CQC,CSA.ISO.ROHS,CUL
Place of Origin :
Dongguan，Guangdong,China
MOQ :
1000PCS
Price :
Negotiable
Payment Terms :
T/T,Paypal,Western Union,Money gram
Supply Ability :
5000,000,000PCS Per Month
Delivery Time :
5-7 days
Packaging Details :
Bulk
Surface Treatment :
Stamping + surface finish
Noise :
≤60dB
Coolant Type :
Coolant type
Size :
Customizable
Treatment :
passivationHeat conducting
Ip Rating :
IP65
Operatingtemperaturerange :
-40°C to 120°C
Noise Range :
9.5-25
Thermalconductivity :
400 W/m·K
Deep Process :
CNC machining
Base Material :
aluminum or copper
Description

Friction Stir Welding (FSW) Liquid Cold Plate

Friction Stir Welding (FSW) liquid cold plate is an aluminum alloy heat dissipation component. It joins the base plate with flow channels and the cover plate into a whole via solid-state welding without material melting, featuring high reliability, leak resistance and vibration resistance.

2. Working Principle

  1. Machine flow channel grooves on the base plate.
  2. Place the cover plate on top and clamp the assembly rigidly.
  3. A rotating stirring pin presses down and travels along the joint. Friction heat softens the metal into a plastic state.
  4. The plasticized metal is backfilled and forged behind the stirring pin, forming a dense weld seam.
  5. The entire process involves no material melting, welding wire, brazing filler metal or shielding gas.
Schematic Diagram of Friction Stir Welding Principle

3. Core Advantages

✅ Superior Strength: The weld strength reaches 90–95% of the base metal, much higher than that of brazed joints (approximately 50–70%).

✅ Excellent Leak Tightness: The dense weld is free of pores. Its burst pressure exceeds 1.5 MPa, ensuring no leakage under long-term high pressure.

✅ Minimal Deformation: As a solid-state welding process with a narrow heat-affected zone, the flatness is controlled within 0.1 mm/m.

✅ Fatigue & Vibration Resistance: Refined metal grains enable stable performance under vibrating and thermal cycling conditions such as vehicle and energy storage applications.

✅ Lightweight Design: Wall thickness can be reduced (e.g., from 1.5 mm to 1.0 mm), cutting weight by 20–30%.

✅ Eco-friendly: No welding fume or brazing material contamination, with low energy consumption.

✅ Flexible Design: Compatible with complex flow channels including serpentine channels, microchannels and special-shaped channels.

4. Common Materials

  • Aluminum Alloy: 6061/6063 (balanced strength and thermal conductivity); 1050/1070 (high thermal conductivity).
  • Copper Alloy: Higher thermal conductivity, applied to scenarios with ultra-high heat flux.
  • Dissimilar Materials: Aluminum-copper, aluminum-stainless steel (unique advantage of FSW technology).

5. Typical Applications

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Liquid Cold Plate With Friction Stir Welding Process Friction Stir Welding（FSW）

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Product Detail
Brand Name :
UCHI
Certification :
UL.VDE,SGS,REACH,CQC,CSA.ISO.ROHS,CUL
Place of Origin :
Dongguan，Guangdong,China
MOQ :
1000PCS
Price :
Negotiable
Payment Terms :
T/T,Paypal,Western Union,Money gram
Contact Supplier
Liquid Cold Plate With Friction Stir Welding Process Friction Stir Welding（FSW）

Guangdong Uchi Electronics Co.,Ltd

Verified Supplier
13 Years
guangdong, dongguan
Since 2006
Business Type :
Manufacturer, Exporter
Main Products :
Metal Oxide Varistor, SMD Varistor, Thermally Protected Varistor
Total Annual :
1,500,000-2,500,000
Employee Number :
138~168
Certification Level :
Verified Supplier
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