Cold Forged Heat Sink | Pin Fin Heat Sink

Cold Forged Heat Sink: Redefining Efficient Thermal Management

Winshare Thermal Alloy relies on advanced cold forging technology to provide you with excellent performance and high reliability cooling solutions.

What is a Cold Forged Heat Sink?

Winshare Thermal's Cold Forged Heat Sinks are premium, single-piece thermal components designed for high heat flux environments. This advanced process uses massive pressure to form high-purity metal (Copper or Aluminum) into a complete, integrated unit (base and fins) at room temperature.

Cold Forged Heat Sink Product Showcase

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Winshare Cold Forged Heat Sink: Key Advantages for Excellent Performance

We use a variety of advanced brazing techniques to ensure the strongest, most thermally efficient connection for your heat sink. Each process has its own unique advantages and is suitable for different materials and design requirements.

Zero Interface Thermal Resistance

The seamless, one-piece structure (base and fins) ensures highly efficient, direct heat transfer.

Enhanced Thermal Conductivity

The cold forging process optimizes the metal's grain structure, improving the material's heat flow capability.

High Fin Density

Capable of producing fins with extreme density and aspect ratios, maximizing the total heat dissipation surface area.

Superior Structural Integrity

Excellent mechanical strength and durability, ideal for applications requiring high reliability under shock and vibration.

Material Versatility

Available in high-purity Aluminum and Copper to match specific thermal and weight requirements.

Cold forged heat sink: core technical specifications and material advantages

SPECIFICATIONS	DETAILED DESCRIPTION
Main material	High purity aluminum (AL1050, AL1070), copper (C11000)
Fin density	Very high density can be achieved, such as 0.5mm pitch, to optimize heat dissipation surface area
Fin aspect ratio	Up to 20:1 or even higher, effectively utilizing heat dissipation space
Maximum size	Large cooling modules can be manufactured according to customized requirements
Surface treatment	Black/transparent anodizing, chemical nickel plating, passivation, sandblasting, etc. to improve corrosion resistance and radiation performance
Thermal resistance	One-piece molding, no interface thermal resistance, the overall thermal resistance is much lower than the traditional combined heat sink

Core technical parameters

Winshare Thermal Alloy's cold forged heat sinks are designed and manufactured to exacting standards to ensure they meet the most demanding thermal management needs.

Detailed explanation of cold forging material advantages

The cold forging process not only shapes the physical form of the heat sink, but also optimizes the performance of the material from a microscopic level.

High-purity aluminum (AL1050 / AL1070): These grades of aluminum alloys have excellent thermal conductivity. Through cold forging, the internal grain structure is refined and stretched along the direction of heat flow, further improving the anisotropic thermal conductivity of the material, making it perform better in heat dissipation applications.

Copper (C11000): Copper is one of the best known engineering metals for thermal conductivity. Cold forged copper heat sinks take advantage of copper's thermal conductivity, making them particularly useful in applications where extreme heat dissipation is required and space is limited. The cold forging process also increases the mechanical strength of copper, making it reliable and stable under high heat loads.

No interface thermal resistance: This is the core advantage of cold forged heat sinks. Since the substrate and fins are integrally formed, there is no bonding layer or mechanical contact surface on the heat transfer path, which fundamentally eliminates the interface thermal resistance and ensures efficient and seamless transfer of heat from the heat source to the heat sink. This is critical for the long-term stable operation of high-power devices.

Wide application of Winshare cold forged heat sink

Cold forged heat sinks have become the preferred thermal management solution for high power density and harsh environments due to their excellent thermal performance, high reliability and structural integrity. They are widely used in the following key industries

Our Areas of Application

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High Power LED Lighting

Provide efficient heat dissipation for high-brightness LED modules to ensure low light decay and extend the life of the lamp.

CPU/GPU cooling

Efficient and quiet cooling solution for processors in high performance computing, servers, and workstations.

High Power Electronics

Guarantee the stable operation of high heat flux density devices such as IGBT modules, frequency converters, new energy inverters, and high-power power supplies.

New Energy Automotive Electronics

Thermal management of key components such as on-board chargers, motor controllers, and battery management systems (BMS).

Communications equipment

Reliable heat dissipation for highly integrated communication equipment such as 5G base stations, servers, and network switches.

Industrial Control and Automation

Industrial PCs, automation equipment, servo drives and other applications that require high stability and lifespan.

Medical Devices

Precision heat dissipation of large medical equipment such as MRI, CT and portable medical instruments.

Military and Aerospace

Military electronic equipment with strict requirements on high reliability, high strength and adaptability to extreme environments.

Winshare cold forged heat sink Quality Assurance and Certification

Our commitment to product quality is the cornerstone of Winshare Thermal Alloy's success. All brazed heat sinks undergo a rigorous testing and quality control process to ensure they meet international standards and our customers' stringent requirements.

We strictly follow the international

quality management system standards to ensure that every link from design to production is standardized and efficient.

Strict testing process and equipment

Equipped with advanced dimensional measuring equipment (such as three-coordinate), thermal performance testing platform, mechanical strength tester, etc., to conduct comprehensive verification of the products.

RoHS & REACH Compliance

All cold forged heat sink products comply with EU RoHS and REACH directives, do not contain harmful substances, and ensure environmental protection and safety.

Common Problems of cold forged heat sink

Q What are the significant differences in heat dissipation performance between cold forged heat sinks and extruded heat sinks?

A Cold forged heat sinks are usually better than extruded heat sinks in terms of heat dissipation performance. The main reason is that cold forging can achieve a fin structure with higher density and aspect ratio, greatly increasing the heat dissipation surface area; more importantly, the cold forging process allows the substrate and fins to be formed in one piece, fundamentally eliminating the interface thermal resistance and ensuring efficient and lossless heat transfer. Extruded heat sinks are limited in fin density and aspect ratio, and may have higher interface thermal resistance.
Q What materials are mainly used in cold forged heat sinks? What are the advantages of these materials?

A Cold forged heat sinks mainly use high-purity aluminum (such as AL1050, AL1070) and copper. These materials have excellent thermal conductivity. Through the cold forging process, their grain structure is optimized, the thermal conductivity is further improved, and they also have good mechanical strength, which can meet the heat dissipation needs of high-power devices.
Q What high heat flux density application scenarios are cold forged heat sinks suitable for?

A Cold forged heat sinks are ideal for high heat flux density applications that require efficient heat dissipation and high reliability, such as high-power LED lighting, high-performance CPU/GPU, IGBT modules, new energy automotive electronics (such as on-board chargers, motor controllers), 5G communication base stations, industrial control systems, and medical and military equipment.
Q What are the significant differences in heat dissipation performance between cold forged heat sinks and extruded heat sinks?

A Yes, we provide comprehensive custom design services. You need to provide detailed heat load requirements, available installation space constraints, airflow or liquid cooling conditions, target operating temperature, specific application type, preferred materials, and any existing design drawings (such as CAD files, 3D models) or concept sketches. Our engineering team will perform thermal simulation, structural optimization, and rapid prototyping based on this information.

Cold Forging Extreme Cooling, Contact Us Now!

Winshare looks forward to working with you to provide the most advanced cold forged thermal solutions for your innovative products.

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