As a leading titanium manufacturer, we strictly control every step from raw material to final product. The following are the key processing technologies we use to ensure the highest quality and performance of our titanium products.
VAR Melting is the critical step for producing high-quality titanium alloy ingots, essential for aerospace and medical-grade titanium. The primary goal is to remove highly volatile impurities and gases, ensuring uniform alloy composition.
High Purity: Melting in a high-vacuum environment minimizes harmful gases like oxygen and nitrogen.
Composition Uniformity: Ensures even distribution of alloying elements (e.g., Al, V) throughout the ingot.
Defect Elimination: Effectively removes inclusions and porosity, enhancing the ingot's internal quality and fatigue performance.
Technical Detail: We typically employ Double or Triple VAR Melting to meet the most stringent aerospace standards, ensuring superior reliability.
After VAR melting, the titanium ingot is forged to refine its internal microstructure, eliminate the cast structure, and achieve the desired shape.
Optimized Grain Structure: Forging applies immense pressure, refining the grain size and significantly improving the material's strength, toughness, and fatigue life.
Performance Control: Precise control over forging temperature and deformation allows us to tailor the microstructure to meet specific mechanical property requirements.
Near-Net Shape: Precision forging reduces subsequent machining, lowering overall production costs.
Rolling is the main method for processing forged billets into shapes like plates, strips, wires, and tubes.
Performed above the recrystallization temperature for large deformation processing, achieving required size and shape quickly. High efficiency, but with relatively lower surface quality.
Performed below the recrystallization temperature, typically after hot rolling. Significantly improves surface finish, dimensional accuracy, and mechanical strength (through work hardening). Key for high-precision titanium products.
Titanium alloys are indispensable in the aerospace industry due primarily to their exceptional strength-to-weight ratio, superior corrosion resistance, and ability to maintain structural integrity at elevated temperatures. This guide details the selection and processing of high-performance titanium grades.
| Alloy Grade | Classification | Key Characteristics | Typical Applications |
|---|---|---|---|
| Ti-6Al-4V (Grade 5) | Alpha-Beta | Excellent balance of strength, ductility, and fracture toughness. Service temperature up to 400°C. | Airframe structures, engine compressor blades, fasteners, landing gear components. |
| Ti-6Al-4V ELI | Alpha-Beta | Extra Low Interstitials (ELI). Enhanced fracture toughness and fatigue crack growth resistance at cryogenic temperatures. | Cryogenic tanks, high-stress components in extreme environments. |
| Ti-10V-2Fe-3Al | Beta | High strength, deep hardenability, and excellent forgeability. | Landing gear, heavy-duty structural fittings. |
Aerospace titanium performance is critically dependent on manufacturing processes adhering to strict specifications like AMS (Aerospace Material Specifications) and AS9100.
Requirement: Double or Triple VAR Melting is mandatory for all critical components to eliminate High-Density Inclusions (HDI) and Low-Density Inclusions (LDI), which can cause catastrophic failure.
Our Commitment: We utilize Triple VAR to minimize defects and ensure the ingot meets the stringent ultrasonic inspection requirements of AMS standards.
Forging refines the grain structure, directly impacting fatigue life. Heat treatment (Solution Treatment & Aging or Annealing) is used to tailor the final mechanical properties.
| Process | Purpose | Typical Application |
|---|---|---|
| Solution Treatment & Aging (STA) | Maximizes strength and hardness by precipitating secondary phases. | High-strength structural parts (e.g., Ti-10V-2Fe-3Al landing gear). |
| Annealing | Improves ductility, stability, and machinability; relieves internal stresses. | General airframe components, parts requiring extensive machining. |
In aerospace, full traceability is non-negotiable. Every piece of material must be traceable back to its original melt source and processing history.
Standards Compliance: Certified to AS9100 and ISO 9001:2015.
Testing: Rigorous NDT, including Ultrasonic Inspection (UT) and Microstructure Analysis.
Mill Test Certificates (MTC): Comprehensive MTCs provided with every shipment, detailing chemical composition, mechanical properties, and processing parameters.
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