Topic: Manufacturing Engineering
In metal forming, ring compression test is carried out to find out
- A. Compressive strength
- B. Interface friction
- C. Upset ratio
- D. None of these
Answer: B. Interface friction
Explanation: In metal forming, ring compression test is carried out to find out interface friction. We can determine the magnitude of the friction coefficient $\mu$, at the die (or) workpiece interface. If friction is present, the internal diameter of the ring is reduced with increasing deformation.