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A CPU (Central Processing Unit) is the primary component of a computer responsible for executing instructions and performing calculations.
During operation, CPUs generate significant heat which can lead to overheating and reduced performance. To prevent it, a heatsink is mounted on the CPU and evacuate the heat away.
The heatsink ensures the CPU operates within safe temperature limits, maintaining optimal performance and longevity. Air cooling is typically used for low power CPUs while liquid cooling is required for CPUs operating at higher power.
Using a thermal management platform like ColdStream is essential to accurately model and manage this heat generation.
While modern CPUs have improved in performance, the development of efficient cooling solutions has not benefited from the same pace of advancement. Modern CPUs generate significant amounts of heat, which can have a deteriorating effect on their components. Ensuring effective cooling is therefore critical for users to exploit the full performance of their hardware.
Amnovis, a leader in additive manufacturing, leveraged ColdStream to demonstrate advanced and highly effective CPU cooling solutions using their manufacturing technique in combination with highly organic generative designs. The goal was to create a heatsink that not only surpassesexisting cooling technologies but also takes advantage of the properties ofcopper, known for its superior thermal conductivity.
The project began with defining the problem’s parameters,such as the thermal load generated by the CPU, the available design space, theproperties of copper, compatibility with Amnovis’s 3D printing capabilities,and the objectives (in this case, minimizing thermal resistance and ensuringuniform temperature distribution).
The heat sink was experimentally tested, revealing a good match with the CFD simulation results, which further underscores the quality of the CFD models.
ColdStream subsequently generated a series of designs basedon these requirements using its capabilities in topology optimization.
Each of the generated iterations went through a rigorousevaluation through the Computational Fluid Dynamics (CFD) simulations of theplatform.
These simulations provided detailed insights into fluid flowand heat transfer characteristics, ensuring that only the most effectivedesigns were considered for further refinement.
Once ColdStream identified the optimal design, it wasvalidated through further extensive simulations to ensure that it would performas expected in real-world conditions.
Amnovis then moved on with its manufacturability using their3D printing techniques.
The outcome of the design was a CPU cooler thatdemonstrated a 55% improvement in cooling performance compared to acommercially available high-end heat sink—a significant improvement!
Amnovis’ use of ColdStream demonstrates the impact of combining generative design with advanced manufacturing techniques. As computational demands continue to rise, the innovative use of ColdStream and 3D printing technologies highlights the potential for further advancements in thermal management.
This case study is a testament to the power of AI-driven generative design and additive manufacturing in solving complex engineering challenges, ensuring that future CPUs can operate at peak performance without the risk of overheating.
Amnovis is a Belgian company founded in 2020. It specializes in additive manufacturing, particularly in the medical and industrial sectors. Amnovis focuses on 3D printing solutions using advanced materials like titanium, copper and polymers to create highly customized and complex products. The company leverages its expertise to deliver innovative, high-quality components that meet stringent industry standards. Amnovis is engaged in manufacturing, engineering, and research and development.
