Often earing defects are found during deep drawing operation, because the __________________?
Correct answer: A. Starting sheet has planer anisotropy due to its texture
- A. Starting sheet has planer anisotropy due to its texture
- B. Sheet material has been given substantial spring back
- C. Surface finish of the sheet is poor
- D. Starting sheet has normal anisotropy due to its texture
Explanation
Earing is uneven cup height during deep drawing, caused by planar anisotropy in the sheet’s crystallographic texture. Normal anisotropy mainly affects drawability and wall thinning, not the formation of ears.
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