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Copper-Aluminum Compound Cold Forged Pin Fin Heat Sink For Big
Power Equipment
Specification of Cold Forged Haet Sink
Raw Material | AL1070/1060/copper |
Custom Service | Yes, OEM/ODM Service |
Quality System | ISO9001:2015 |
Processing Technology | Forged/cutting/laser/CNC/Anodizing |
Surface treatment | Anodizing gold |
Packing Way | Blister packaging or special packing you would like |
Application Scenario | Electronic equipment heat sink |
MOQ Request | 100/500/1000 |
Description
Cold forged heat sinks are ideal for casting complex shapes with excellent thermal conductivity. The cold forging process can achieve almost perfect straightness, with more heat sinks per square millimeter. The shape of cold forging pin fin heat sink includes plate-fin heat sink, round pin heat sink and oval fin heat sink. The manufacture of forged heat sinks is very suitable for the use of copper, because copper heat sinks can be formed without high temperature and can cause minimal damage. The manufacture of cold forged heat sinks can usually include secondary machining operations, such as holes, chamfering, and steps to reduce unnecessary waste.
Heat sink manufacturers have widely used cold forging technology in the production of light source heat sinks and LED heat sinks. Winshare is one of the few companies that used cold forging to produce heat sinks in the early days. We have accumulated rich experience in cold forging technology. In addition to producing heat sinks for typical light sources, Winshare has also gained experience in manufacturing high-power cold forged heat sinks. We have solved problems such as the low thermal conductivity of die-cast microchannels and the higher cost of processing microchannels. We have applied cold forging heat sinks to cooling solutions, including high-voltage inverters, wind power converters and motor controllers.
Note
Cold forged heat sink
An added benefit of this process is that a forged heatsink of the
same design can be manufactured with different heights using only
one set of forging die. When working with high aspect ratio, or
dense fins a forged heatsink has no thermal interface between the
fins/pins, and the base which will provide better performance
compared with stamped-fin or bonded-fin heat sinks. Heat
distribution can be further improved in aluminum heatsinks by
embedding a copper inserts into the base during the forging. As
this process is fairly expensive, for small volumes it may be worth
exploring extrusion with a cross cut to produce square pins. For
larger volumes die cast is a good alternative.
Fodor has gained experiences in the manufacturing techniques for
high power cold forged heat sink. We have resolved the problems
such as the low thermal conductivity of die-casting micro-channels
and higher costs for machining micro-channels. We have already
applied cold forging heatsink to cooling solutions including
high-voltage inverters, wind power converters, and electric motor
controllers.
1. Manufactoring process: Cold forging process
2. Material: AL1070
3. Surface treatment: Clear/black/red/gold anodizing
4. Product type: Customized Design
5. Packing: export standard carton box with pallet.
6. Application: Industry/medical/measurement/house
you have any inquiry, please contact us.
A Forged heatsink is manufactured using a modification of this
process called cold forging. Cold forging uses high pressure and
low temperature to ensure that no air bubbles, or other impurities
are trapped in the material. This improves the thermal properties
of the heatsink, and increases the density of the material.
A Forged heatsink is manufactured using a modification of this
process called cold forging. Cold forging uses high pressure and
low temperature to ensure that no air bubbles, or other impurities
are trapped in the material. This improves the thermal properties
of the heatsink, and increases the density of the material. Radian
Thermal Products utilizes special open die tooling and intense
pressure to produces high precision heatsinks with high aspect
ratios. A Forged heatsink is typically manufactured one part at a
time, and can be can be made from AL 6063 or C1100. Aspect ratio up
to 35:1 are feasible, and no draft angles required on fins. Fins
can be round, elliptical, straight or any combination on the same
part.
Cold forging uses a displacement process to shape the material into the desired shape. Compressive force squeezes the metal between a punch and die at room temperature until the material conforms to the die's contours. Cold forging techniques include rolling, pressing, drawing, spinning, heading, and extruding
The cold forged heat sink is widely used in the heat dissipation of
LED lamps and has the following advantages:
(1) The price of cold forging die is not high, which can
effectively control the cost;
(2) High production capacity, suitable for mass production;
(3) The mold production cycle is relatively short, usually 10 to 15
days;
(4) One-time molding, the heat dissipation performance of cold
forging heatsink is consistent with the heat dissipation
performance of the material, and the post-processing procedures are
few and simple.
(5)The major advantages of cold forging are close dimensional
tolerances, good surface finish quality, and the use of lower cost
materials to obtain the required strength by work hardening without
requiring heat treatment.
Increased surface area of the heat sink will yield lower thermal
resistance and better component cooling, but only if boundary layer
is not formed and fins close proximity do not prohibit flow of air.
When designing extruded part, fins must be tapered so that the
aluminium alloy will pass through the tool without breaking it. The
number of fins in an extrusion limited by strength of the die set
and the size of the extrusion. These restrictions will have impact
on the surface area.
Forged fins require lesser taper for extraction from the tool,
allowing for more fins per given heat sink size. Heat sink fins can
also be formed in to elliptical shape if required.
Fodor is the leading heat sink manufacturer in China, provides heat
sinks and cold plates and offer customized cold forging heat sink and the other heat sink,
for example, aluminum profile heat sink,skived heat sink,die
casting heat sink,cold plate, if you need any heat sink, please
contact fodor .