1. According to the molding method

Free forging: suitable for simple shaped forgings (such as bars and cakes), with low cost but limited accuracy;

Forging: Pressing complex shapes (such as turbine blades and flanges) through molds, with high dimensional accuracy;

Isothermal forging: High temperature slow forming, used for high-precision aircraft engine parts (such as compressor discs).

2. By product form

Rod/cake ring material: used for further processing or directly as structural components;

Irregular forgings: customized components such as engine blades, ship propellers, etc.

TA1/TA2: Industrial pure titanium, excellent corrosion resistance and good plasticity;

TC4: High strength (Ti-6Al-4V), with the best comprehensive performance;

TA15: Near alpha alloy, capable of withstanding high temperatures up to 500 ℃ in aircraft engine compressor casings;

TC20: Non toxic (replacing V with Nb), with mechanical properties equivalent to TC4.

1. Forging process

Hot forging: operate above the beta phase transition temperature (900-950 ℃) to improve plasticity and reduce the risk of cracking;

Warm forging: Forming in the α+β two-phase region (700-800 ℃), balancing strength and processing efficiency;

Isothermal forging: The mold and workpiece are at the same temperature (about 950 ℃), suitable for precision titanium alloy components

2. Key process control

Deformation amount: It needs to be greater than 50% to fully refine the grain size;

Heat treatment: Annealing to relieve stress, solid solution aging to strengthen alloys;

Surface treatment: Acid washing to remove oxide scale, sandblasting to enhance fatigue strength.

3. Quality inspection

Non destructive testing: Ultrasonic testing (UT) to detect internal defects, and penetration testing (PT) to inspect surface cracks;

Mechanical testing: Tensile and impact tests to verify tensile strength (≥ 900 MPa) and elongation (≥ 10%).

Lightweight and High Strength: Density ranging from 4.5 g/cm ³ (TA8) to 4.51 g/cm ³ (TC4), with a specific strength superior to steel;

Corrosion resistance: resistant to seawater and strong acid media, chemical equipment life is increased by 3-5 times;

High temperature stability: TA15 can work for a long time at 500 ℃ and has excellent creep resistance;

Biocompatibility: TC4/TC20 is non-toxic and has good compatibility with human tissues;

Fatigue resistance: Low crack propagation rate under cyclic loading, suitable for aviation dynamic components.

Aerospace: engine turbine discs, rocket shells, high temperature strength, lightweight;

Ocean engineering: deep-sea detector framework, ship propulsion, resistant to seawater corrosion;

Energy and chemical industry: nuclear reactor supports, acid resistant valves, radiation resistance, corrosion resistance;

High end manufacturing: racing linkages, superconducting equipment structural components, high specific strength, non-magnetic.