Wing Structural Parts Manufacturing Solutions
Wing structural components are the core elements of aircraft load-bearing systems, including spars, ribs, stringers, and brackets that directly impact flight safety, structural integrity, and maintenance costs.
Common Customer Challenges
- Difficult to control machining deformation of large structural components, dimensional accuracy and geometric tolerances are unstable
- Complex geometric shapes (spars, ribs) have complex machining processes and difficult tool path optimization
- High-strength materials (titanium alloys, high-strength steel) have severe work hardening and rapid tool wear
- Extremely high assembly accuracy requirements, difficult to control mating surface accuracy and assembly clearances
- Long fatigue life testing cycles, stringent quality control and inspection standards
- Complex material traceability and batch management, strict airworthiness certification requirements
Wing Structural Parts Manufacturing Solutions
Spar Manufacturing Solutions
- Technical Points: Large-scale long beam machining, straightness control, weight reduction design; high-strength material machining optimization
- Process Route: Rough machining → Heat treatment → Precision machining → Assembly hole machining → Surface treatment
- Success Case: Main spar project for a large commercial aircraft, length 15m, straightness ≤0.1 mm/1000mm, weight reduction 20%, passed FAA airworthiness certification, customer delivery on-time rate 100%
Rib Manufacturing Solutions
- Technical Points: Complex geometric shape machining, thin-walled component deformation control, assembly accuracy; multi-axis machining
- Process Route: 5-axis rough machining → Heat treatment → Precision machining → Assembly surface machining → Inspection
- Success Case: Military fighter rib project, complex curved surface machining, wall thickness 2-5mm, assembly accuracy ±0.02 mm, fatigue life improved 30%, received military excellent supplier award
Stringer Manufacturing Solutions
- Technical Points: Long slender ratio component machining, straightness control, surface quality; efficient machining processes
- Process Route: Drawing forming → Precision machining → Surface treatment → Straightening → Inspection
- Success Case: Regional aircraft stringer project, length 8m, straightness ≤0.05 mm/1000mm, surface roughness Ra≤0.4 μm, production efficiency improved 40%
Bracket And Connection Component Manufacturing Solutions
- Technical Points: High-precision mating surface machining, assembly clearance control, fatigue strength; small batch multi-variety
- Process Route: Precision machining → Surface strengthening → Assembly testing → Fatigue validation
- Success Case: Helicopter bracket project, mating surface accuracy ±0.01 mm, fatigue life ≥100,000 cycles, quick changeover ≤2 hours, customer satisfaction 95%
Wing Structural Parts Manufacturing Process
Raw Materials And Incoming Materials Inspection
Process step description: Verify aluminum/titanium alloy grade, thickness, surface quality and heat treat condition; sample chemistry and mechanical properties. Equipment: Optical spectrometer, universal testing machine, CMM, ultrasonic thickness gauge, hardness tester, metallographic microscope.
Material Preparation And Cutting
Process step description: Cut sheet metal to required dimensions with minimal waste and proper edge quality for subsequent forming operations. Equipment: CNC cutting machine, laser cutter, waterjet cutter, shearing machine, edge deburring machine.
Rough Machining And Stock Removal
- Process step description: Remove excess material and establish basic geometry using high-efficiency roughing operations with proper fixturing.
- Equipment: CNC milling machine, turning center, machining center, roughing tools, precision fixtures.
Heat Treatment And Stress Relief
- Process step description: Apply solution treatment, aging or stress relief to achieve target mechanical properties and dimensional stability.
- Equipment: Heat treatment furnace, aging furnace, stress relief furnace, temperature monitoring system, atmosphere control.
Precision Machining And Finishing
- Process step description: Machine critical features, surfaces and assembly interfaces to specified dimensions and surface quality requirements.
- Equipment: 5-axis machining center, precision milling machine, turning center, grinding machine, CMM.
Assembly Hole Drilling And Tapping
- Process step description: Drill and tap assembly holes with high precision positioning and thread quality for structural connections.
- Equipment: CNC drilling machine, tapping machine, countersinking machine, thread gauge, hole position checker.
Surface Treatment And Coating
Process step description: Apply anodizing, primer coating or specialized surface treatments for corrosion resistance and paint adhesion. Equipment: Anodizing line, coating booth, curing oven, surface preparation system, thickness gauge.
Precision Straightening (As Required)
- Process step description: Correct distortion on long structural members and verify straightness using precision straightening equipment.
- Equipment: Precision straightening machine, laser distance gauge, multi-point straightening fixture, straightness tester.
Non-Destructive Testing (NDT)
Process step description: Perform 100% NDT inspection including ultrasonic, eddy current and penetrant testing for defect detection. Equipment: Ultrasonic testing system, eddy current tester, penetrant testing kit, X-ray inspection system, NDT certification equipment.
Dimensional Inspection And Metrology
Process step description: Verify dimensional accuracy, surface profile and geometric tolerances using advanced metrology equipment. Equipment: CMM, laser tracker, 3D scanner, surface profilometer, coordinate measuring arm.
Final Inspection And Documentation
Process step description: Conduct final quality checks, generate inspection reports and prepare documentation for airworthiness certification. Equipment: Visual inspection station, documentation system, barcode printer, quality management software.
Packaging And Shipping
Process step description: Apply protective packaging and shipping preparation to prevent damage during transportation and storage. Equipment: Protective packaging system, shipping fixtures, environmental monitoring, handling equipment.
Data Traceability And Quality Control
- Process step description: Maintain complete traceability of materials, processes and inspections for airworthiness compliance and quality control.
- Equipment: MES, data acquisition system, quality management system, barcode/RFID system, document management.
Wing Structural Parts Production Line
Production Line Layout And Configuration
- Overall Layout: Adopt linear layout, arranged in process sequence to minimize material handling distance
- Workstation Division: Material preparation area → Rough machining station → Heat treatment station → Precision machining station → Assembly station → Inspection station → Packaging area
- Logistic Passage: Main channel width 5m, auxiliary channel 3m, ensuring smooth transportation of large structural components
- Buffer Zone Setup: Set 4-8 hour buffer inventory between each station to balance production rhythm
Equipment Configuration And Automation
Rough Machining Station Equipment Configuration
- Large Milling Machines: 3 units, table size 4m×2m, spindle power 50kW
- Turning Centers: 2 units, maximum machining diameter 2m, length 6m
- Gantry Machining Centers: 2 units, table size 6m×3m, 5-axis linkage
- Automation: Automatic loading/unloading system, automatic tool change, automatic machining parameter adjustment
Heat Treatment Station Equipment Configuration
- Large Heat Treatment Furnaces:2 units, processing capacity 4m×2m×1.5m, temperature control ±5°C
- Aging Furnaces: 1 unit, processing capacity 6m×2m×1m
- Stress Relief Furnaces: 1 unit, processing capacity 8m×2m×1m
- Automation: Automatic loading system, automatic temperature curve control, automatic atmosphere adjustment
Precision Machining Station Equipment Configuration
- 5-Axis Machining Centers: 4 units, table size 3m×2m, spindle speed 15000rpm
- Precision Grinding Machines: 3 units, machining accuracy ±0.002mm
- CNC Drilling Machines: 4 units, drilling accuracy ±0.05mm, automatic tool change
- Automation: Online inspection system, automatic compensation, real-time quality data collection
Assembly Station Equipment Configuration
- Assembly Platforms: :2 units, size 8m×4m, load capacity 50 tons
- Lifting Equipment: 2 bridge cranes, lifting capacity 20 tons each
- Assembly Fixtures: Specialized fixture systems, rapid positioning
- Automation: Automatic assembly system, torque control, assembly data recording
Production Flow And Material Handling
- Material Flow: Raw materials → Rough machining → Heat treatment → Precision machining → Assembly → Inspection → Packaging
- Information Flow: Order information → Process parameters → Quality data → Traceability information
- AGV System: 15 AGVs, automatic transportation of large structural components
- Warehouse System: Automated storage and retrieval system, storage capacity 2000 pieces
