Cold Forged

Cold Forged Heatsinks Thermal Solutions

Designed to maximize the surface area in contact with the coolant fluid, Cold Forged Heatsinks.

Cold Forging is the most effective method to form complex shapes and offers unique thermal advantages. Forging is a cold process. Therefore, it requires high pressure to create a part. Consequently, it controls the grain structure and improves thermal performance.

CSI can forge fins almost perfectly straight, allowing for more fins per square inch. Also, we offer round and elliptical fin shapes. We manufacture parts made with Aluminum or copper. The forging process has few limitations to forming shapes and complex fin designs. In addition, this manufacturing process reduces the need for secondary operations. 

Cold Forged Heatsinks offer several significant advantages over their machined, die-cast, and extruded counterparts. The increased thermal performance coupled with the ability to expand to the surface area without increasing the size of the heatsink is a unique advantage. These factors are especially critical when your space is limited and /or weight reduction is critical.

Cold Forged Heatsinks benefits include:

  • Fins can be round, elliptical, straight, or any combination
  • Heatsinks are manufacture with aluminum or copper alloy
  • Thin walls of .020” and aspect ratios up to 35:1 are feasible
  • Higher tooling cost than extrusion, but the unit price is generally competitive with most of the processes
  • Heatsinks of the same footprint with various heights require only one set of forging die

Engineering Support

Briefly, as part of Cold Forged Heatsinks design work, our engineers apply advanced 3D modeling. Also, we are using cutting-edge CFD tools to optimize your heat transfer project. In addition, we provide our customers a complete cooling solution to meet specific requirements in a timely and cost-effective manner.

Also, you can count on our Mechanical Engineers to assist with design change and reduce manufacturing costs.

Our fully equipped lab is available to valid your Cold Forged Heatsinks designs, testing, and inspect.

CSI team can help you meet tight schedule requirements while allowing you to focus on your business’s core competencies.

Also, we stand by, ready to support you from concept to production globally.

Finally, a simple call or e-mail will put you in touch with our experts who have the answers you require.


Contact us

Cold Forgings

2021 Las Positas Ct, Ste 101
Livermore, CA 94551
Phone: (925) 292-1293
Fax: (925) 292-5061


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