Rough Disc Forgings

Shanglin Machinery is a global expert in high-quality forged wheel solutions, proving its competence.

Typical areas of application
Products for the nuclear power industry: steam generator tube sheets, key sealing elements.
Precision hydraulic systems: distribution discs for axial piston pumps.
Bases for astronomical equipment: forged discs with residual stresses Reactor heads for chemical equipment: materials with increased corrosion resistance.
Balancing discs for crankshafts, etc.

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Production process

Based on the order's requirements, a rigorous manufacturing process plan (MPP) is developed—from raw materials to packaging and delivery. A flow chart of the process is shown below:

1. Confirmation of purchase of blanks

2. melting

3. visual inspection

4. chemical analysis

5.storage of blanks

6.preliminary heat treatment

7.forging

8. Heating

9.Feeding the workpiece

10.Development of the forging process

11. Inspection of blanks

12. rough machining

13.Ultrasonic testing (UT test)

14. rough machining

15. Ultrasonic testing and analysis of macrostructure

16.semi-full processing

17. control of mechanical properties (hardness, bending) and chemical composition

18. stress relief (vacation)

19.sample selection

20. Hardening and tempering (Q+T)

21. Macrostructure control

22.100% dimensional control

23.ultrasonic testing

24.package

25. storage

Quality control

✔ Forged wheels undergo 100% ultrasonic testing (UT) and meet the requirements of standards such as EN10228-3 (level 3), SEP1921-84 (class D). Macrostructure control guarantees the absence of cracks, white spots, pores, shrinkage, unacceptable non-metallic inclusions, folds, cavities and other defects on the etched surface of the product.

✔ Full quality traceability: the entire cycle – from smelting to the finished product.