Titanium alloys (such as Ti-6Al-4V) are widely used in key components in the aviation field due to their high specific strength, high-temperature resistance, and corrosion resistance. Typical applications and related technical parameters are summarized as follows:
1. Aircraft engine parts
Application examples: compressor blades, turbine discs, fan blades
1) Performance parameters:
Tensile strength: ≥900 MPa (AMS 4928)
Fatigue strength: 500-600 MPa (under high-frequency load)
Working temperature: -250℃ to 450℃ (long-term); short-term up to 600℃
Density: 4.43 g/cm3
2) Implementation standards:
Material standards: AMS 4928 (Ti-6Al-4V forgings), ASTM B348 (titanium alloy bars)
Process standards: AMS-H-81200 (heat treatment), AMS 2631 (ultrasonic testing)
3) Process requirements:
Heat treatment: β annealing (950-1000℃) or solution treatment (900-950℃) + aging (500-600°)
Surface treatment: sandblasting (Ra 1.6-3.2μm), laser shock strengthening (improve fatigue life)
Technical requirements:
Defect control: internal inclusions ≤Φ0.3mm (ASTM E2375)
Dimension tolerance: ±0.05mm (precision machined parts)
2. Fuselage structural parts
Application examples: wing beams, door frames, firewalls
1) Performance parameters:
Yield strength: 830 MPa
Elastic modulus: 110 GPa
Fracture toughness: ≥70 MPa·Vm (prevent crack propagation)
2) Implementation standards:
Material standard: AMS 4911 (Ti-6Al-4V thin plate)
Connection standard: NASM 1312-7 (titanium alloy riveting process)
3) Process requirements:
Forming temperature: hot forming needs to be heated to 700-800℃ (avoid cold brittleness)
Welding: argon arc welding (TIG) or electron beam welding (vacuum environment, energy density ≥106W/cm2)
4) Technical requirements:
Surface roughness: Ra≤1.6um (matching surface)
Anti-corrosion treatment: anodizing (voltage 15-25V, film thickness 5-10um
3. Landing gear parts
Application examples: struts, torque arms
1) Performance parameters:
Impact toughness: ≥40J (-50C low temperature test)
Corrosion resistance: passed 3000 hours salt spray test (ASTM B117)
2) Implementation standards:
Material standard: AMS 6932 (high-strength β titanium alloy Ti-10V-2Fe-3Al)
Testing standard: NAS 410 (penetrant testing)
3) Process requirements:
Forging ratio: ≥3:1 (to ensure streamlined integrity)
Surface treatment: micro-arc oxidation (film thickness 20-50μm, hardness ≥800HV)
4) Technical requirements:
Fatigue life: ≥107 cycles (load spectrum simulates actual working conditions)
4. Fasteners and pipeline systems
Application examples: titanium alloy bolts, hydraulic pipelines
1) Performance parameters:
Shear strength: ≥550 MPa (M8 bolts)
Pressure resistance: ≥30 MPa (hydraulic pipelines)
2) Implementation standards:
Fastener standard: NASM 21251 (titanium alloy bolts)
Pipeline standard: SAE AS1830 (titanium pipe fittings)
3) Process requirements:
Cold heading: deformation rate ≤80% at room temperature (to avoid cracking)
Inner wall treatment: electrolytic polishing (Ra ≤0.8um)
4) Technical requirements:
Thread accuracy: 6g grade (ISO 965)
Cleanliness: NAS 1638 Class 6 (Hydraulic System)
The titanium cube meets the requirements of lightweight and high reliability in the aviation field through precision machining and strict process control. Its core advantages are:
Specific strength: (strength/density ratio) is 1.3 times that of steel and 1.6 times that of aluminum alloy;
Corrosion resistance: The service life is more than 3 times that of stainless steel in a humid/salt spray environment;
Process adaptability: Complex structure integrated molding can be achieved through additive manufacturing (such as EBM).
Edgetech Industries LLC provides a variety of commercially pure Titanium and Titanium alloys in wire, sheet, bar, tube, and other forms. Titanium expanded/stamped mesh and titanium wire mesh are also available.