Cold forging heat sink 2022

 

 

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Stacked heat sink

Cold forging is a technique for material forming at a lower temperature than the material’s recrystallization temperature (typically means room temperature). Typically used cold forging materials include aluminum and its alloys, copper, and alloys, which have a smaller resistance to deformation under room temperature and higher plasticity. During the forming process, cold forging allows work hardening (strain hardening) to enhance strength and hardness.


Product Details
The cold forging technique has been widely used by heat sink manufacturers to produce light source heat sinks and LED heat sinks. Win share Thermal is one of the few companies that used cold forging to produce heat sinks in the early days, and we have accumulated abundant experience with cold forging techniques. In addition to producing heat sinks for typical light sources, Win shares Thermal has gained experience in manufacturing high-power cold forging heat sinks. 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 our expertise to cooling solutions, including high-voltage inverters, wind power converters, and electric motor controllers.

Metals

Minimum recrystallization temperature/℃

Copper (Cu)

200~270

Aluminum (Al)

100~150

We always carry out integrated design and manufacturing of our heat sinks by cold forging technique to ensure low thermal resistance and high thermal conducting effects. This can effectively guarantee heat transfer in a timely fashion to achieve the ultimate cooling effect. Moreover, cold-forged heat sinks have better mechanical performance, higher throughput, and higher material utilization. Therefore, it is especially suitable for large batch productions to reduce production costs.

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