What are Deep Hole Drilled Cold Plates?

Deep Hole Drilled Cold Plates (DHDCs) are liquid-cooled heat sinks created by drilling deep, high-precision holes into a solid block of metal, such as copper or aluminum. Unlike traditional cold plate manufacturing methods, this process creates highly customized, complex, and often three-dimensional internal fluid channels.

Through precision drilling, coolant channels can be precisely positioned at the core heat source, even enabling intersecting or multi-layered channel designs to maximize heat transfer efficiency and minimize thermal resistance. This highly customized channel design perfectly matches any complex heat source shape and distribution, providing unparalleled heat dissipation optimization. Because the channels are formed directly into the solid material, the drilled cold plate offers unparalleled structural integrity, completely eliminating the risk of leaks from welds or joints. It is the ultimate cooling solution for extremely high heat flux densities and extreme environmental challenges.

Overview of key technical parameters

PARAMETER	DESCRIPTION/SCOPE
Typical heat flux handling capacity	Up to hundreds of watts per square centimeter (W/cm²)
Minimum flow channel diameter	Millimeter or even sub-millimeter diameters can be achieved
Withstand voltage range	Extremely high, can withstand pressures of hundreds or even thousands of PSI
Material thermal conductivity	Copper (>380 W/m·K), aluminum alloy (>150 W/m·K)

What are the advantages of Deep Hole Drilled Cold Plates?

Unparalleled customized flow channel design

It can realize complex 3D flow channels, cross flow channels and multi-layer flow channels, accurately match the heat source position, and provide the optimal heat dissipation path.

Excellent thermal performance

The flow channel fits closely to the heat source, with extremely low thermal resistance, and can efficiently manage and dissipate extremely high heat flux density.

Ultra-high structural integrity and reliability

Drilled from a solid metal block, it has no welds or connection interfaces, completely eliminating the risk of leakage and is suitable for high-pressure and high-vibration environments.

Wide selection of materials

It can perform precision drilling on a variety of high thermal conductivity metals (such as copper and aluminum) to meet the material performance requirements of different applications.

Ultimate customized matching

It can be customized to the shape and heat distribution of any complex heat source to achieve unparalleled heat dissipation optimization.

Long life and low maintenance

The robust construction and leak-free nature ensure a long product life with minimal maintenance.

The main difference between drilled cold plates and other cold plates

Precision-drilled cold plates stand out in the liquid cooling market with their unique manufacturing process and superior performance, making them suitable for extreme scenarios where other cold plates struggle:

What materials are supported by drilled cold plates?

The manufacture of precision-drilled cold plates places high demands on material uniformity and machinability. Winshare Thermal Alloy is capable of performing precision deep hole drilling on a variety of high-performance metals to meet the most demanding heat dissipation requirements:

Copper:

Copper, one of the most thermally conductive engineering metals, is the material of choice for high-heat-flux drilled cold plates. We typically use high-purity copper, such as C11000, to ensure optimal thermal conductivity and excellent machinability. Copper drilled cold plates are widely used in high-power lasers, X-ray equipment, and scientific research instruments.

Aluminum Alloys:

Aluminum alloys (such as 6061 and 7075) offer advantages such as lightweight and good thermal conductivity. For applications requiring a balance between performance and weight, aluminum alloy drilled cold plates are an ideal choice. They are commonly used in aerospace, military electronics, and high-performance computing.

Stainless Steel:

In applications where corrosion resistance is paramount, stainless steel (e.g., 304, 316) drilled cold plates are the preferred choice. Although their thermal conductivity is inferior to copper and aluminum, their superior chemical resistance makes them indispensable in medical, chemical, and certain specialized industrial environments.

Our material experts will recommend the most suitable metal material based on your coolant type, operating environment and heat load requirements to ensure the best performance and life of the cold plate.

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How cost-effective are drilled cold plates?

The manufacturing of precision drilled cold plates involves high-precision machine tools and complex processes, so their initial manufacturing cost is generally higher than other types of cold plates. However, in the following high-value and critical applications, drilled cold plates can provide significant overall cost benefits and return on investment:

Extend the life of expensive components

When cooling high-value, high-power electronic components (such as high-power laser diodes, CPUs, and GPUs), the superior heat dissipation capabilities of drilled cold plates effectively control temperatures and significantly extend the life of these expensive components, thereby significantly reducing replacement and repair costs.

Reduce system failure rate and downtime

The one-piece, leak-free design ensures extremely high reliability and minimizes system downtime due to thermal failure, which is crucial for critical applications such as production lines, data centers or military equipment.

Achieve the impossible design

Drilled cold plates can achieve complex flow channels and extreme heat dissipation performance that other technologies cannot achieve, thereby enabling certain innovative products or systems to be realized and bringing huge market competitive advantages.It can be customized to the shape and heat distribution of any complex heat source to achieve unparalleled heat dissipation optimization.

Efficiency improvements brought about by performance optimization

Cooler operating temperatures mean higher equipment performance and efficiency, which can translate into significant energy savings or productivity gains in long-term operations.

Winshare Deep Hole Drilled Cold Plates quality certification and guarantee

Winshare Thermal Alloy is extremely committed to the quality of Deep Hole Drilled Cold Plates. We have established a comprehensive quality management system and obtained multiple international authoritative certifications to ensure that our products meet the highest standards

Winshare Deep Hole Drilled Cold Plates Application Areas

High-power lasers

Precision temperature control for industrial laser cutting, welding, medical laser, etc.

Particle accelerator/scientific research equipment

Equipment that has extremely high requirements for heat dissipation and reliability, such as high-energy physics and nuclear fusion research.

Military and Aerospace

Extreme environment applications such as high-power radar, electronic warfare systems, and directed energy weapons.

Ultra-high performance computing

Supercomputers, AI training clusters, and other systems that have extreme requirements for heat flux density.

X-ray equipment

Cooling of high-power X-ray sources in industrial inspection, medical diagnosis, etc.

High-end medical imaging equipment

PET/CT, MRI and other equipment that have extreme requirements on temperature stability, noise and reliability.

semiconductor manufacturing equipment

Etching machines, coating equipment and other key components that require precise temperature control

High-precision testing equipment

Test instruments that require precise temperature control to ensure measurement accuracy.

Why choose Winshare Deep Hole Drilled Cold Plates?

Winshare Deep Hole Drilled Cold Plates Customization Process

Extreme demand analysis

Gain a deep understanding of your most demanding thermal loads, space constraints, flow path complexity, and reliability requirements.

Exclusive three-dimensional flow channel and structural design

Utilizing advanced 3D CAD/CAM and CFD simulation, we can tailor the optimized 3D flow channel layout and cold plate structure for you

Precision deep hole drilling and machining

We use multi-axis CNC deep hole drilling equipment combined with precision machining technology to achieve your own complex internal channels.

Internal cleaning and high-precision inspection

Strict internal cleaning is carried out and helium mass spectrometry leak detection and endoscopy inspection are used to ensure that there are no defects.

Prototype verification and performance optimization

Prototypes are produced and rigorous thermal performance, pressure, and flow tests are carried out to continuously optimize the design until it reaches perfection.

High-standard customized production

Customized production is carried out according to the highest standards to ensure that each product achieves the ultimate performance and reliability.

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