Consider the following statements:
Earring in a drawn cup can be due to non – uniform
1. Speed of the press
2. Clearance between tools
3. Material properties
4. Blank holding
Which of these statements are correct?
(a) 1,2 and 3 (b) 2,3 and 4
(c) 1,3 and 4 (d) 1,2 and 4