---
type: "product_component"
title: "Aluminum Heat Sink"
industry: "Custom Aluminum Parts Manufacturing"
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  index_version: "2026.Q1-Universal"
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  base_thickness:
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    typical_range: "0-150°C"
    unit: "mm"
  thermal_resistance:
    status: "config-dependent"
    typical_range: "0-150°C"
    unit: "°C/W"
engineering_limits:
  max_safe_operating_point:
    value: 660.32
    unit: "°C"
    consequence: "Thermal conductivity degradation beyond 200°C due to increased phonon scattering and lattice vibration amplitude exceeding 0.1nm, reducing conductivity from 237 W/m·K to below 100 W/m·K"
fmea_matrix_quantitative:
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      trigger: "Thermal interface material dry-out at 125°C for 1000+ hours"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Phase-change thermal interface material with melting point at 65°C and thermal conductivity of 8.5 W/m·K"
  - node_2:
      trigger: "Fin deformation under 50kPa pressure at 180°C"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "6061-T6 aluminum alloy with yield strength of 276 MPa and thermal expansion coefficient of 23.6 μm/m·°C"
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manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/custom-aluminum-parts-manufacturing/product/aluminum-heat-sink.md"
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rag_vector_index:
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    - "custom aluminum heat sink for electronics"
    - "6061 aluminum alloy heat sink"
    - "thermal management aluminum component"
    - "precision aluminum cooling fins"
    - "custom mounting hole pattern heat sink"
    - "Aluminum Heat Sink in "
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    - "Aluminum Heat Sink supplier China"
    - "Aluminum Heat Sink base_thickness"
    - "Aluminum Heat Sink thermal_resistance"

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version: "3.3.5-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Aluminum Heat Sink

## 1. Technical Definition
Custom aluminum component for thermal management in electronic assemblies

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-150°C**. Failure boundary: **Aluminum melting point at 660.32°C**, Mechanism: **Thermal conductivity degradation beyond 200°C due to increased phonon scattering and lattice vibration amplitude exceeding 0.1nm, reducing conductivity from 237 W/m·K to below 100 W/m·K**.

### 2.1 Analytical Physics Model
Governed by the **LMTD Logarithmic Mean Temperature Difference**:

> **Primary Equation**: $Q = U \cdot A \cdot \Delta T_{lm}$  
> **Engineering Impact**: Sizing validation for pasteurization and cooling tunnels.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| U | Heat Transfer Coeff | Engineering Constant |
| A | Area | Engineering Constant |
| \Delta T_{lm} | LMTD | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Thermal interface material dry-out at 125°C for 1000+ hours | 8 | Thermal resistance increase from 0.5°C/W to 2.5°C/W | Phase-change thermal interface material with melting point at 65°C and thermal conductivity of 8.5 W/m·K |
| Fin deformation under 50kPa pressure at 180°C | 8 | Airflow reduction from 2.5 m³/min to 0.8 m³/min | 6061-T6 aluminum alloy with yield strength of 276 MPa and thermal expansion coefficient of 23.6 μm/m·°C |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| base_thickness | Config-dependent | mm | Verified |
| thermal_resistance | Config-dependent | °C/W | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **CNC Machining Center**, **Surface Grinding Machine**, **Anodizing Line**  
**Downstream Applications**: LED Lighting Fixtures, Computer CPU Coolers, Power Supply Units  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What are the advantages of using aluminum alloy 6061 for heat sinks?
**A**: Aluminum alloy 6061 offers excellent thermal conductivity, good machinability for custom shapes, and corrosion resistance, making it ideal for efficient heat dissipation in electronic assemblies.

### Q: How do I specify custom dimensions for my aluminum heat sink?
**A**: Provide base dimensions (mm), fin height (mm), fin pitch (mm), and mounting hole pattern (mm) requirements. We manufacture to your exact specifications for optimal thermal performance.

### Q: What thermal interface materials are compatible with your aluminum heat sinks?
**A**: Our heat sinks work with various thermal interface materials like thermal paste, pads, or adhesive tapes to ensure maximum heat transfer between components and the sink surface.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Aluminum Heat Sink](https://cnfx.com/industry/custom-aluminum-parts-manufacturing/product/aluminum-heat-sink)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: ALUMINUM_HEAT_SINK | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 82e48c51