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Custom aluminum bonded fin heat sink glued with base

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Address: Zhangyang Zone, Zhangmutou Town, Dongguan,Guangdong

Contact name:Cherry

Phoenix Metal Co., Ltd

Custom aluminum bonded fin heat sink glued with base

Country/Region china
City & Province dongguan guangdong
Categories Other Lighting Accessories

Product Details

Custom aluminum bonded fin heat sink glued with base 

All the products show on our website for reference only and there is not stock.  Thanks

Folded fin heat sinks are produced by a progressive stamping method, and then bonded to the heat 

sink base. An advantage of folded fin heat sinks is the ability to combine aluminum and copper to tailor 

the performance of the heat sink to the particular application. If the heat must be spread over a large 

heat sink base, copper can be used for its high conductivity, yet the heat sink fins can be produced from 

aluminum, due to its low weight and cost. On the other hand, copper heat sink fins may be advantageous 

due to its higher fin efficiency, and aluminum may be used in the heat sink base

 

 

Advantage:

·  Lightest weight of all heat sink manufacturing methods 

·  Allows the thinnest fins (down to 0.1 mm thick)

·  Allows more fins per inch of width

·  Minimized mounting base thickness

·  Maximum surface area per cubic volume for heat dissipation

·  Very high aspect ratios

·  Fins and base can be made out of different metals (copper base, aluminum fins)

 

Disadvantage:

·  Requires joints which reduce thermal conductivity (diffusion bonded folded fin heatsinks offer much improved conductivity)

·  More costly than skived fins or extrusion

·  Some materials (aluminum) require nickel plating to allow soldering

 

Heat sink comparison for different process: 

 

Comparison

Die casting

Extrusion

Stacked fin

Folded fin

Skived fin

Cost

medium to low

low

high

medium

low

Tooling Lead-Time

long

short

long

long

medium

Weight

medium

heavy

light

light

medium

Performance

high

limited

best

medium

limited

 

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