Product Details
Flexible NEW aluminium folded fin heatsink for customer service
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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 |
Company Profile
Phoenix Metal Co., Ltd is founded in 2008, and committed to custom all kinds of metal parts.
With many years experience in metal fabrication we are well
equipped to find the most effective, reliable and economic
solutions for a diverse range of markets and applications.