ReddRadar
Agent skill
process-planning
Skill for manufacturing process planning including operation sequencing and work instructions
Install this agent skill to your Project
npx add-skill https://github.com/a5c-ai/babysitter/tree/main/library/specializations/domains/science/mechanical-engineering/skills/process-planning
Metadata
Additional technical details for this skill
- phase
- 8
- domain
- science
- category
- manufacturing
- priority
- medium
- specialization
- mechanical-engineering
- tools libraries
-
[ "PLM systems", "MES interfaces", "Process planning tools" ]
SKILL.md
Manufacturing Process Planning Skill
Purpose
The Manufacturing Process Planning skill provides capabilities for developing comprehensive manufacturing process plans including operation sequencing, work instructions, and quality controls for mechanical component production.
Capabilities
- Operation sequence development
- Machine and tooling selection
- Cycle time estimation
- Inspection point specification
- Work instruction creation
- Process FMEA development
- Control plan generation
- Cost estimation and optimization
Usage Guidelines
Process Planning Framework
Information Gathering
-
Design Requirements
- Part drawing and model
- Material specification
- Tolerance requirements
- Surface finish requirements
- Special requirements (certifications, traceability)
-
Production Requirements
- Annual volume
- Lot sizes
- Lead time requirements
- Budget constraints
-
Available Resources
- Machine capabilities
- Tooling inventory
- Skilled labor
- Quality equipment
Operation Sequencing
Sequence Development Principles
General sequence:
1. Raw material preparation
2. Primary forming/roughing
3. Secondary operations
4. Finishing operations
5. Heat treatment (if required)
6. Final machining (post-heat treat)
7. Surface treatment/coating
8. Final inspection
9. Packaging
Operation Selection Matrix
| Feature | Possible Operations | Selection Criteria |
|---|---|---|
| External cylinder | Turning, grinding | Tolerance, finish |
| Internal cylinder | Boring, drilling, reaming | Diameter, depth |
| Flat surface | Milling, grinding, lapping | Flatness, finish |
| Gear teeth | Hobbing, shaping, grinding | Accuracy, volume |
| Thread | Tapping, thread milling, rolling | Size, accuracy |
| Heat treat | Quench/temper, carburize, nitride | Hardness, depth |
Machine Selection
Capability Assessment
Selection criteria:
- Workpiece size vs machine envelope
- Required tolerances vs machine capability
- Surface finish capability
- Spindle power vs material removal
- Tool capacity
- Automation potential
Process Capability
Typical capabilities:
Turning: IT7-IT9, Ra 0.8-3.2 um
Milling: IT7-IT10, Ra 0.8-6.3 um
Grinding: IT5-IT7, Ra 0.1-0.8 um
EDM: IT6-IT8, Ra 0.2-6.3 um
Honing: IT4-IT6, Ra 0.05-0.4 um
Cycle Time Estimation
Time Components
Total cycle time = Setup time + Processing time + Non-productive time
Processing time per operation:
T_process = (L + A) / (f * N) + tool change time
Where:
L = length of cut
A = approach distance
f = feed rate
N = spindle speed
Standard Times
| Activity | Typical Time |
|---|---|
| Load/unload (manual) | 15-60 seconds |
| Tool change (CNC) | 3-10 seconds |
| Index (turret) | 1-3 seconds |
| Probe cycle | 5-15 seconds |
| Deburr (manual) | 30-120 seconds |
Work Instructions
Content Requirements
-
Header Information
- Part number and revision
- Operation number and description
- Work center/machine
- Standard time
-
Setup Instructions
- Fixture identification
- Tool list
- Work offset procedures
- Program number
-
Operating Instructions
- Step-by-step procedures
- Critical parameters
- Safety requirements
- Quality checks
-
Visual Aids
- Photos of setup
- Diagrams of critical dimensions
- Defect examples (visual standards)
Process FMEA
FMEA Structure
Process Step -> Potential Failure Mode -> Effect -> Cause
Severity (S): 1-10 scale
Occurrence (O): 1-10 scale
Detection (D): 1-10 scale
RPN = S x O x D
Actions required for RPN > 100 (typically)
Common Process Failure Modes
| Process | Failure Mode | Cause | Detection |
|---|---|---|---|
| Machining | Dimension out of tolerance | Tool wear | In-process gage |
| Heat treat | Incorrect hardness | Temperature error | Hardness test |
| Welding | Porosity | Contamination | NDT |
| Assembly | Missing component | Operator error | Check sheet |
Control Plan
Control Plan Elements
For each operation:
- Process step
- Machine/device
- Characteristic (dimension, property)
- Specification/tolerance
- Measurement method
- Sample size and frequency
- Control method
- Reaction plan
Process Integration
- ME-017: Manufacturing Process Planning
Input Schema
{
"part_info": {
"part_number": "string",
"revision": "string",
"material": "string"
},
"design_requirements": {
"drawing_reference": "string",
"critical_dimensions": "array",
"surface_finish_requirements": "array"
},
"production_requirements": {
"annual_volume": "number",
"lot_size": "number",
"lead_time": "number (weeks)"
},
"available_equipment": "array of machine types"
}
Output Schema
{
"process_plan": {
"routing_number": "string",
"operations": [
{
"op_number": "number",
"description": "string",
"work_center": "string",
"setup_time": "number (min)",
"cycle_time": "number (min)",
"tooling": "array",
"inspection_points": "array"
}
],
"total_lead_time": "number (days)"
},
"work_instructions": "array of document references",
"process_fmea": "document reference",
"control_plan": "document reference",
"cost_estimate": {
"material": "number",
"labor": "number",
"overhead": "number",
"total": "number"
}
}
Best Practices
- Consider all design requirements before sequencing
- Minimize setups and part handling
- Group operations by work center when possible
- Include quality gates at critical operations
- Document all assumptions and alternatives
- Review with production team before release
Integration Points
- Connects with GD&T Drawing for requirements
- Feeds into CNC Programming for machining ops
- Supports FAI Inspection for verification
- Integrates with Quality for control plans
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