---
title: "Carriage"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:CARRIAGE"
  data_integrity_hash: "8b944fded44ddf49b6822a9ddab17a74"
  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:CARRIAGE"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/carriage.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/carriage"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.1-2.5 m/s linear velocity, 0.005-0.05 mm positioning accuracy, 50-200 N cutting force capacity"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 0.003
    unit: "mm"
    consequence: "Thermal expansion of ball screw (α=11.5×10⁻⁶/°C for steel) causing positioning error, Hertzian contact stress exceeding 1.5 GPa in linear guide bearings, resonance at 120-180 Hz from servo motor harmonics"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Ball screw preload loss due to thermal cycling (ΔT=60°C)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Dual-nut preload system with Belleville washers maintaining 200 N preload force"
  - node_2:
      trigger: "Servo motor encoder contamination with 5 μm particulate ingress"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "IP67-rated encoder housing with labyrinth seal and positive air purge at 0.2 bar"
bom_nodes:
  saddle:
    type: "component"
    urn: "URN:CNFX:ME:SADDLE"
    interface_type: "physical-logic-coupled"
  apron:
    type: "part"
    urn: "URN:CNFX:ME:APRON"
    interface_type: "physical-logic-coupled"
  cross-slide:
    type: "part"
    urn: "URN:CNFX:ME:CROSS_SLIDE"
    interface_type: "physical-logic-coupled"
  tool-post:
    type: "part"
    urn: "URN:CNFX:ME:TOOL_POST"
    interface_type: "physical-logic-coupled"
  way-wipersscrapers:
    type: "component"
    urn: "URN:CNFX:ME:WAY_WIPERSSCRAPERS"
    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/carriage.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "60b396370e0f971fec17a2dad6af2075c30271c3bdb26468e9ad08134e16d6ff"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Carriage

## 1. Technical Definition
The movable platform on a CNC lathe that holds and positions cutting tools for machining operations.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.1-2.5 m/s linear velocity, 0.005-0.05 mm positioning accuracy, 50-200 N cutting force capacity**. Failure boundary: **0.003 mm positional deviation from programmed path, 250 N cutting force threshold, 80°C bearing temperature limit**, Mechanism: **Thermal expansion of ball screw (α=11.5×10⁻⁶/°C for steel) causing positioning error, Hertzian contact stress exceeding 1.5 GPa in linear guide bearings, resonance at 120-180 Hz from servo motor harmonics**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Ball screw preload loss due to thermal cycling (ΔT=60°C) | 8 | Backlash accumulation exceeding 0.01 mm | Dual-nut preload system with Belleville washers maintaining 200 N preload force |
| Servo motor encoder contamination with 5 μm particulate ingress | 8 | Positional feedback error of ±0.002 mm | IP67-rated encoder housing with labyrinth seal and positive air purge at 0.2 bar |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Apron](https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/apron.md) `(Standalone System)`
- [Cross Slide](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/cross-slide.md) `(Standalone System)`
- [Tool Post](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/tool-post.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **CNC Lathe Controller**, **Coolant System**, **Tool Presetter**  
**Downstream Applications**: Precision Shafts, Automotive Components, Aerospace Fasteners  

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

### Q: What materials are used in CNC lathe carriages?
**A**: CNC lathe carriages are typically constructed from cast iron or ductile iron for durability, stability, and vibration dampening during precision machining operations.

### Q: What components are included in a carriage BOM?
**A**: A standard carriage bill of materials includes the apron, cross slide, saddle, tool post, and way wipers/scrapers for complete tool positioning functionality.

### Q: How does a carriage improve CNC lathe performance?
**A**: The carriage provides precise tool positioning and movement control, ensuring accurate machining, repeatability, and reduced vibration for higher quality finished parts.

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

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

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

> **Reference ID**: CARRIAGE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 16f475da
