---
title: "Bed / Die Holder"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:BED_DIE_HOLDER"
  data_integrity_hash: "bc8ff0e3b1cb6793ff83a94c4c008d19"
  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:BED_DIE_HOLDER"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/bed-die-holder.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/bed-die-holder"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-1000 kN clamping force, 20-80°C operating temperature, 0.01-0.05 mm flatness tolerance"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 1200
    unit: "kN"
    consequence: "Plastic deformation occurs when applied stress exceeds yield strength of cast iron (250 MPa), differential thermal expansion at &gt;150°C creates internal stresses exceeding material fatigue limit, surface flatness deviations cause uneven pressure distribution following Hertz contact theory"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Cyclic loading at 80-100% of rated capacity exceeding 10⁶ cycles"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Finite element analysis optimization to maintain von Mises stress below 200 MPa, shot peening surface treatment to induce compressive residual stresses of -400 MPa"
  - node_2:
      trigger: "Thermal gradient exceeding 50°C across bed surface during continuous operation"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrated cooling channels maintaining ΔT &lt;15°C, Invar 36 alloy inserts with 1.2×10⁻⁶/°C thermal expansion coefficient"
bom_nodes:
  t-slots:
    type: "component"
    urn: "URN:CNFX:ME:T_SLOTS"
    interface_type: "physical-logic-coupled"
  reference-surface:
    type: "component"
    urn: "URN:CNFX:ME:REFERENCE_SURFACE"
    interface_type: "physical-logic-coupled"
  mounting-holes:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_HOLES"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "ANSI B5.45-1972 - MACHINE TOOLS - BED AND DIE HOLDERS"
    scope: "Verified Engineering Specification"
  - standard: "DIN 5510-2:2009 - FIRE PROTECTION IN RAILWAY VEHICLES"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/bed-die-holder.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "b67c5224e7075122aaea019c731481f644486827c2760f0fd9983442fb3f83e0"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Bed / Die Holder

## 1. Technical Definition
The stationary base component of a CNC press brake that supports and secures the lower die during metal bending operations.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-1000 kN clamping force, 20-80°C operating temperature, 0.01-0.05 mm flatness tolerance**. Failure boundary: **Exceeding 1200 kN clamping force causes permanent deformation, temperature &gt;150°C induces thermal expansion exceeding 0.2 mm, flatness deviation &gt;0.1 mm causes bending angle errors &gt;0.5°**, Mechanism: **Plastic deformation occurs when applied stress exceeds yield strength of cast iron (250 MPa), differential thermal expansion at &gt;150°C creates internal stresses exceeding material fatigue limit, surface flatness deviations cause uneven pressure distribution following Hertz contact theory**.

### 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 loading at 80-100% of rated capacity exceeding 10⁶ cycles | 8 | Fatigue crack propagation from stress concentration points | Finite element analysis optimization to maintain von Mises stress below 200 MPa, shot peening surface treatment to induce compressive residual stresses of -400 MPa |
| Thermal gradient exceeding 50°C across bed surface during continuous operation | 8 | Thermal distortion causing 0.15-0.25 mm warpage | Integrated cooling channels maintaining ΔT &lt;15°C, Invar 36 alloy inserts with 1.2×10⁻⁶/°C thermal expansion coefficient |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **CNC Press Brake**, **Material Handling Crane**, **Laser Cutting Machine**  
**Downstream Applications**: Metal Enclosures, Automotive Frame Components, HVAC Ductwork  

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

### Q: What materials are used in bed/die holders for CNC press brakes?
**A**: Bed/die holders are typically constructed from cast iron or steel alloy to provide the necessary rigidity, vibration damping, and durability required for precision metal bending operations.

### Q: How does the T-slot design benefit press brake die holders?
**A**: T-slots allow for flexible and secure mounting of various lower dies using standard T-bolts, enabling quick die changes and precise positioning while maintaining stability during bending cycles.

### Q: Why is the reference surface important on a bed/die holder?
**A**: The precision-ground reference surface ensures accurate alignment and parallelism of the lower die, which is critical for achieving consistent bend angles and preventing part defects in metal fabrication.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS
- ANSI B5.45-1972 - MACHINE TOOLS - BED AND DIE HOLDERS
- DIN 5510-2:2009 - FIRE PROTECTION IN RAILWAY VEHICLES

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Bed / Die Holder](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/bed-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**: BED_DIE_HOLDER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 30839763
