CCAMTG-2500 A04 — Manufacturing Engineering

Volume 12 defines the manufacturing-engineering architecture for the CCAMTG-2500 A04, translating the approved machine design into controlled manufacturing routes for structural, rotating, pressure-containing, aerodynamic, electromagnetic, thermal and mechanical component families. The manufacturing system integrates process planning, machining, welding, heat treatment, tooling, fixturing, balancing, metrology, cleanliness, preservation, inspection, traceability, nonconformance control and final manufacturing release.

Public A04 Manufacturing Baseline

Machine Class: 2.5 MW-Class Dual-Mode Compressed-Air Energy Storage / Recovery Magnetic Motor-Generator Machine
Nominal Rotor Speed: 12,000 rpm
Master Air Mass Flow: 12.2 kg/s
Compression Architecture: Three-Stage, 1.20 bara → ~31 bara
Expansion Architecture: Three-Stage Reheated, ~31 bara → 1.20 bara
DC Bus: 1,500 VDC
Dry Skid Mass (Estimated): ~22,000 kg

A04 Manufacturing Status: Public baseline values describe the current A04 concept-engineering configuration. Final manufacturing dimensions, tolerances and analysis-dependent features are released only through their approved controlling calculations and manufacturing drawings.

Manufacturing Engineering Overview

Manufacturing process planning
Part-family fabrication routing
Precision machining engineering
Welding qualification and weld-process control
Heat-treatment planning
Tooling and fixturing
Dimensional inspection and metrology
Dynamic balancing
Cleanliness and contamination control
Preservation between manufacturing operations
Material and process traceability
Manufacturing release control

Manufacturing Release Architecture

Manufacture proceeds from approved controlling drawings and analyses
Aerodynamic components require approved aerodynamic and structural design release
High-speed rotor components require approved rotordynamic and structural analysis
Magnetic-bearing interfaces require approved electromagnetic and supplier design data
Motor-generator critical geometry requires approved electromagnetic and retention engineering
Pressure boundaries require approved pressure-code calculations and fabrication drawings
Structural skid manufacture requires approved structural and lifting analysis
Thermal equipment manufacture requires approved thermal design and supplier data

Manufacturing Traceability

Unique part identification
Material and heat or lot traceability
Controlling drawing identification
Process-route documentation
Inspection requirement identification
Manufacturing operator and machine records
Heat-treatment records
Welding and NDE records
Balance records for rotating components
Final manufacturing release records

Structural Skid Manufacturing

Controlled preparation of primary structural members
Fixtured structural fit-up
Qualified structural welding
Balanced welding sequence to control distortion
Structural dimensional survey
Controlled machining of machinery-support interfaces
Lifting and transport features manufactured to released structural engineering
Industrial coating and preservation

High-Pressure Casing & Manifold Manufacturing

Controlled manufacture of pressure-service casings and manifolds
Qualified pressure-service welding
Precision machining of split faces, bores and flange interfaces
Controlled seal-land machining
Pressure-service material traceability
Required non-destructive examination
Cleaning and passivation where specified

HP Buffer Vessel Manufacturing

Certified pressure-boundary material control
Controlled shell and head manufacture
Qualified pressure-code welding
Pressure-boundary weld traceability
Code-required non-destructive examination
Dimensional inspection
Pressure testing
Manufacture controlled by the approved pressure-vessel design package

Compressor Component Manufacturing

Precision manufacture of compressor impellers
Precision manufacture of diffusers and guide-vane components
Approved aerodynamic geometry transferred to manufacturing drawings
Multi-axis CNC machining of aerodynamic surfaces
Controlled surface finishing
Material and heat-treatment traceability
Non-destructive examination
Mass and dynamic-balance control

Turbine Component Manufacturing

Precision manufacture of turbine wheels
Precision manufacture of nozzle guide vane assemblies
Multi-axis CNC manufacture of aerodynamic profiles
Controlled high-strength material processing
Heat-treatment traceability
Non-destructive examination at required manufacturing stages
Dimensional scanning and metrology
Dynamic balance verification before rotor assembly

Rotor Shaft Manufacturing

Certified rotor-material receipt and verification
Controlled rough and finish machining
Manufacturing datums established around the functional rotor axis
Qualified heat treatment and stress-relief where required
Precision turning and grinding of rotor interfaces
Inspection of concentricity, runout and surface condition
Final non-destructive examination
Rotor-component and module balancing

High-Speed Coupling Manufacturing

Supplier-controlled precision manufacturing
Controlled coupling pilots and flange interfaces
Material and process traceability
Dynamic-balance requirements
Integration with the approved torsional-analysis architecture
Controlled assembly interfaces to the common rotor system

Active Magnetic Bearing Manufacturing

Magnetic lamination manufacture and stacking
Controlled lamination insulation
High-temperature winding manufacture
Electrical insulation and impregnation processes
Controlled curing and electrical testing
Precision housing and target-sleeve interfaces
Sensor-mount manufacturing
Integration with supplier and electromagnetic design requirements

PMSM/PMG Manufacturing

Precision stator and frame manufacture
Controlled stator winding processes
Electrical insulation and impregnation
Controlled permanent-magnet receipt and assembly
Rotor-retention manufacture and assembly
Cooling-interface manufacture
Electrical and dimensional verification
Supplier-controlled electromagnetic manufacturing interfaces

Process Seals & Sealing Components

Supplier-controlled manufacture of process seals
Material compatibility with pressure, temperature and process media
Controlled machining, forming or moulding
Integration with the Fasteners, Joints & Sealing register
Inspection before controlled machine assembly

Welding Engineering

Qualified welding procedures
Supporting procedure qualification records
Qualified welders and welding operators
Material-specific welding controls
Controlled shielding and purge practices
Heat-input and interpass control where required
Weld maps and consumable traceability
Specified post-weld inspection and NDE

Rotating-Component Welding Restrictions

High-speed rotating components receive strict repair controls
Unapproved production repair welding is prohibited on critical rotating components
Any approved repair requires engineering disposition
Repair effects on material condition, fatigue and balance are reviewed
Required reinspection and rebalancing follow approved engineering procedures

Machining Engineering

Precision turning and grinding
Multi-axis CNC machining
Aerodynamic-profile machining
Precision casing and flange machining
Seal-land machining
Coupling and rotor interface machining
Datum-controlled manufacturing setups
Manufacturing tolerances inherited from approved part drawings

Heat Treatment Engineering

Material-specific heat-treatment procedures
Qualified processors and controlled furnace cycles
Temperature and cycle recording
Mechanical-property verification
Hardness verification where required
Controlled processing of rotor, stainless, titanium and high-strength alloy components
Heat-treatment traceability retained in the manufacturing data book

Tooling & Fixturing

Rotor turning and grinding tooling
Precision steady-rest and between-centres setups
Multi-axis aerodynamic-component fixtures
Casing split-line fixtures
Structural skid fabrication jigs
Rotor balance tooling
Assembly and inspection fixtures
Tooling qualification and periodic verification

Metrology & Dimensional Inspection

Coordinate measuring machine inspection
Laser-tracker inspection
Precision dimensional measurement
Surface and flatness inspection
Rotor runout measurement
Assembly datum verification
Calibrated inspection instruments
Measurement uncertainty matched to required manufacturing control

Rotor Balance Control

Individual rotating-component balancing
Rotor-module balancing
Controlled correction locations
Traceable balancing-machine calibration
Initial and final balance results recorded
Balance records preserved through final machine assembly

Cleanliness & Contamination Control

Controlled separation of fabrication tooling where contamination risk exists
Pressure-air passages cleaned before closure
Removal of machining debris and foreign material
Controlled cleaning of pressure-service components
Aerodynamic surfaces protected after final inspection
Open nozzles, coolant ports and instrument connections protected after acceptance

Preservation Between Operations

Temporary protection of precision rotor surfaces
Protection of coupling and seal interfaces
Protection of aerodynamic surfaces from handling damage
Controlled closure of open process connections
Preservation status documented through manufacturing
Storage and preservation records transferred to downstream assembly and shipping controls

In-Process Inspection & Hold Points

Incoming material inspection
Intermediate inspection after rough machining
Heat-treatment verification
Post-weld inspection
Final-machining inspection
Dynamic-balance acceptance
Pressure-boundary completion inspection
Final manufacturing release review

Nonconformance & Repair Control

Critical nonconformances require documented disposition
Rework performed to approved drawing requirements
Engineering repair requires approved procedure
Use-as-is disposition requires documented engineering concession
Unacceptable components are rejected or scrapped
Repairs affecting balance, pressure integrity, fatigue or alignment receive discipline review
Manufacturing changes affecting the design baseline require controlled engineering change assessment

Manufacturing Data Book

Material traceability records
Manufacturing process travellers
Heat-treatment records
Welding qualification and weld records
Machining inspection records
Non-destructive examination records
Dynamic-balance records
Pressure-test records where applicable
Nonconformance and engineering-concession records
Final as-built manufacturing release documentation

Manufactured Part Families

Air-intake and conditioning hardware
Three-stage compressor components
Common rotor-train components
Active magnetic bearing and touchdown-bearing hardware
PMSM/PMG components and interfaces
Three-stage turbine components
Thermal and cooling equipment interfaces
HP buffer vessel components
Structural skid, guards and support hardware
Electrical mechanical hardware
Fasteners, gaskets and sealing hardware
Instrumentation mounting and process-connection hardware

Cross-Subsystem Manufacturing Interfaces

General arrangement and datum-control system
Air-intake and conditioning system
Three-stage compressor engineering
HP buffer vessel and pressure-code engineering
Three-stage turbine engineering
Active magnetic bearing engineering
Thermal, cooling and heat-recovery engineering
Structural skid and foundation engineering
Electrical and PMSM/PMG engineering
Fasteners, joints and sealing engineering
System architecture and functional integration
QA, inspection and NDE
Assembly and installation engineering
Maintenance and service engineering
Controls, safety and equipment-labelling requirements

Manufacturing Buildability Rules

Manufacturing uses the latest approved released drawing
Preliminary values remain identified until their controlling analysis is approved
Aerodynamic profiles are not manufactured before design freeze
Critical rotor interfaces are not released before governing rotor and bearing analyses
Pressure-boundary geometry is not released before governing pressure-code engineering
Functional rotor datum continuity is preserved throughout manufacturing
Material, filler, seal, coating and cleaning compatibility is controlled
Manufacturing tolerances are reconciled with final assembly and operating-clearance requirements
Manufacturing records preserve the complete history of safety-critical components