General Studies · Metal Forming
What is the primary purpose of using a wiper die in rotary draw bending?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To cut the pipe after bending
- 2To reduce wrinkling on the inner surface of the bend✓
- 3To apply heat for easy bending
- 4To measure the bending angle
Correct answer
To reduce wrinkling on the inner surface of the bend
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