Cold Forged Heat Sinks: High-Performance Thermal Solutions for Industrial Applications
Precision-engineered cold forged heat sinks deliver 20% higher thermal conductivity than conventional methods. Custom designs for EVs, power electronics & industrial systems. ISO-certified manufacturer with rapid prototyping.
Engineered for Efficiency: Conquer Extreme Thermal Challenges with Cold Forged Technology
Thermal management is critical in high-power industrial systems, where every 1°C temperature reduction can extend component lifespan by 10%. Cold forging revolutionizes heat sink manufacturing by compressing aluminum/copper alloys at room temperature, creating dense grain structures for optimal heat transfer. With 15+ years of expertise in precision metal forming,ZP HEAT SINK custom and manufacture cold forged heat sinks that outperform extruded and stamped alternatives in thermal efficiency (+15-25%), vibration resistance, and space-saving designs.
Higher Thermal Conductivity
Cold forging aligns metal grains into continuous pathways, achieving thermal conductivity of 180-220 W/mK (vs. 150-190 W/mK in die-casting). Our proprietary tooling creates micro-channel fins that increase surface area by 35% for faster heat dissipation.
Superior Structural Integrity
The process eliminates porosity defects common in cast parts, yielding:
- 50% higher yield strength (up to 350 MPa for 6061-T6)
- Vibration resistance to 15G acceleration (MIL-STD-810G compliant)
- Consistent performance in -40°C to 150°C environments
Lightweight & Compact Designs
Achieve 30% weight reduction vs. extruded aluminum:
- Ultra-thin fins (0.8mm thickness) with 25 fins/inch density
- Profile tolerance ±0.05mm for tight component integration
Customization Capabilities
From concept to production in 4 weeks:
- Complex geometries: Pin-fin, staggered, and wave-shaped arrays
- Integrated mounting features: Threaded inserts, snap-fit clips
- Surface enhancements: Micro-grooved textures (Ra 0.4μm)
Material Options
| Alloy | Thermal Conductivity | Tensile Strength | Typical Applications | |
| 6063-T5 Aluminum | 200 W/mK | 185 MPa | LED lighting, Consumer electronics | |
| 6061-T6 Aluminum | 170 W/mK | 310 MPa | Automotive, Power converters | |
| C11000 Copper | 380 W/mK | 220 MPa | High-frequency RF systems | |
Key Parameters
- Thermal resistance: 0.15-2.0°C/W (base-to-ambient)
- Fin height: 5-50mm (single-piece construction)
- Surface treatments: Black anodizing (up to 25μm), Electroless nickel plating (ENP)
- Certifications: ISO 9001:2015, IATF 16949, REACH
This process is an integrated structure and in most cases we use a "cold forged" process. We insert the aluminum alloy material into the forging die through high pressure.
Through cold forging process, we can produce accurate size, solid surface, reliable structure of the heat sink. And can make the heat sink fin higher, thus expanding the cooling area. One of the classic applications is in the field of leds.
Cold forging technology has been widely used by heat sink manufacturers in the production of light source heat sinks and LED heat sinks. ZP is one of the few companies who used cold forging to produce heat sinks in early days and we have accumulated abundant experience of cold forging technology.
Electric Vehicle Battery Cooling Systems
Challenge: Maintain Li-ion battery temperatures below 40°C in compact modules.
Solution: Direct-contact cold forged aluminum plates with 22 fins/inch density.
Result: 18°C temperature reduction vs. extruded designs, 20% faster charge cycles.
High-Power LED Lighting Arrays
Challenge: Prevent lumen depreciation in 200W+ stadium lights.
Solution: Copper-aluminum bimetal heat sinks with optimized fin aspect ratio.
Result: 95% lumen maintenance after 50,000 hours (LM-80 tested).
Industrial Motor Drives
Challenge: Withstand 10G vibrations in CNC machinery.
Solution: Forged 6061-T6 base with interlocked fin structure.
Result: 0 field failures reported over 5-year service period.
From Drawing To Reality, We Make It Real
Advanced Cold Forging Presses
2500-ton hydraulic presses with ±0.01mm repeatability
In-die temperature monitoring (20-30°C process control)
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End-to-End Thermal Validation
CFD simulation services (ANSYS Fluent integrated)
Thermal imaging reports with ΔT mapping
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Design for Manufacturing (DFM) Expertise
72-hour design feedback cycle
Tooling cost optimization up to 40%
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Flexible Production Scale
Prototyping: 30 days (500-unit MOQ)
Mass production: 500,000+ units/month capacity
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Global Compliance Assurance
Conflict-free material sourcing (RMI-certified)
Full traceability via laser-marked batch codes
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Q: How does cold forging improve heat sink performance?
A: The process creates unidirectional grain flow (see metallurgical diagram), enhancing thermal conductivity parallel to fin direction while minimizing interfacial thermal resistance.
Q: What industries benefit most from cold forged heat sinks?
A: Applications requiring high reliability under mechanical stress: EV powertrains (85% of our projects), 5G base stations, and aerospace avionics.
Q: Can I modify existing extrusion designs for cold forging?
A: Yes! Our engineers will analyze your CAD model and recommend optimizations – typically reducing weight by 15-30% while maintaining thermal performance.
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