Manufacturing Process of Titanium Forged Disc

1. Raw Material Selection and Inspection

Select titanium billet (e.g. ASTM B348, Gr2, Gr5)

Perform chemical composition analysis

UT (Ultrasonic Testing) to ensure internal integrity

2. Billet Cutting

Cut billet into disc-appropriate lengths using band saw or abrasive saw

Control cutting length and weight based on final disc size

3. Heating

Heat billet in furnace to 850°C–950°C depending on titanium grade

Uniform heating to avoid cracking or coarse grain

4. Open Die Forging into Disc

Use hydraulic press or hammer to forge billet into flat disc

Multiple hits with controlled deformation

Ensure center consolidation and outer grain flow

5. Annealing (Optional)

Heat treatment to refine grain structure and relieve stress

Typical: 700–800°C in air or vacuum furnace

6. Rough Machining (Facing & Turning)

Remove forging scale and unevenness

Machine to near-net shape, preparing for final tolerance

7. Nondestructive Testing (NDT)

Ultrasonic Testing (UT)–ASTM A388

Liquid Penetrant Testing (PT)–ASTM E165

Visual, dimensional, and flatness check

8. Finish Machining (Optional)

CNC or lathe machining to required OD/thickness/flatness

Surface finish up to Ra≤3.2μm if specified

9. Inspection & Certification

Full dimensional report

Mechanical & chemical test reports

EN10204 3.1 / 3.2 material certificates

10. Packaging

Anti-rust oil, plastic wrap

Plywood case with labeling

Export-standard packaging