---
title: "Die Holder"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:DIE_HOLDER"
  data_integrity_hash: "9ac8385d1a57cc992863a1affda08414"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:DIE_HOLDER"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/die-holder.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/die-holder"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "50-300 MPa clamping pressure, 20-150°C operating temperature, 0.01-0.05 mm positional tolerance"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 350
    unit: "MPa"
    consequence: "Yield strength of die holder material (typically 4140 steel with 415 MPa yield) exceeded under excessive clamping force, differential thermal expansion between die holder (CTE 11.7 μm/m·°C) and die (CTE 12.3 μm/m·°C) creates interfacial stresses exceeding 250 MPa"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Cyclic thermal loading from extrusion process (20-150°C cycles at 0.5-2 Hz)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate thermal barrier coating (Al2O3-TiO2 composite) with 0.3 mm thickness and 200 W/m·K thermal conductivity"
  - node_2:
      trigger: "Non-uniform clamping force distribution exceeding 15% variance across contact surface"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement hydraulic pressure equalization system with 6 independent zones maintaining ±2% pressure uniformity"
bom_nodes:
  clamping-mechanism:
    type: "part"
    urn: "URN:CNFX:ME:CLAMPING_MECHANISM"
    interface_type: "physical-logic-coupled"
  alignment-ring:
    type: "component"
    urn: "URN:CNFX:ME:ALIGNMENT_RING"
    interface_type: "physical-logic-coupled"
  cooling-channels:
    type: "component"
    urn: "URN:CNFX:ME:COOLING_CHANNELS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 (QUALITY MANAGEMENT SYSTEMS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/die-holder.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "38c732b19fdb5dfe357cd20bf70585cab22fe01d9e1204494e0ac9c6f47c841e"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Die Holder

## 1. Technical Definition
A mechanical component in an extrusion press that securely clamps and positions the extrusion die during the metal forming process.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **50-300 MPa clamping pressure, 20-150°C operating temperature, 0.01-0.05 mm positional tolerance**. Failure boundary: **Clamping pressure exceeds 350 MPa causing die deformation, temperature exceeds 200°C causing thermal expansion mismatch, positional deviation exceeds 0.1 mm causing extrusion profile defects**, Mechanism: **Yield strength of die holder material (typically 4140 steel with 415 MPa yield) exceeded under excessive clamping force, differential thermal expansion between die holder (CTE 11.7 μm/m·°C) and die (CTE 12.3 μm/m·°C) creates interfacial stresses exceeding 250 MPa**.

### 2.1 Analytical Physics Model
Governed by the **Frame Structural Deflection Analysis**:

> **Primary Equation**: $\delta = \frac{5 q L^4}{384 E I}$  
> **Engineering Impact**: Ensures structural stability for multi-stage machines.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| q | Uniform Load | Engineering Constant |
| E | Elastic Modulus | Engineering Constant |
| I | Moment of Inertia | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Cyclic thermal loading from extrusion process (20-150°C cycles at 0.5-2 Hz) | 8 | Thermal fatigue cracking in die holder clamping surfaces | Integrate thermal barrier coating (Al2O3-TiO2 composite) with 0.3 mm thickness and 200 W/m·K thermal conductivity |
| Non-uniform clamping force distribution exceeding 15% variance across contact surface | 8 | Die tilt during extrusion causing 0.05-0.15 mm profile deviation | Implement hydraulic pressure equalization system with 6 independent zones maintaining ±2% pressure uniformity |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Clamping Mechanism](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/clamping-mechanism.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Extrusion Press**, **Billet Heater**, **Runout Table**  
**Downstream Applications**: Aluminum Profiles, Copper Tubes, Steel Structural Shapes  

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

### Q: What materials are best for die holders in extrusion presses?
**A**: Die holders are typically manufactured from alloy steel or tool steel for optimal strength, durability, and resistance to wear under high-pressure extrusion conditions.

### Q: How does the clamping mechanism work in a die holder?
**A**: The clamping mechanism securely grips the extrusion die using hydraulic or mechanical force, ensuring precise positioning and preventing movement during the metal forming process.

### Q: Why are cooling channels important in die holders?
**A**: Cooling channels help manage heat generated during extrusion, preventing thermal expansion that could affect die alignment and prolonging the lifespan of both the die and holder.

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

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Die Holder](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/die-holder)**

### 🌐 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**: DIE_HOLDER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 26ca0d09
