Chip-thickness variation in up (conventional) milling In up milling, how does the instantaneous chip thickness vary from the start to the end of the tooth engagement? Choose the correct pattern.
Mechanical Engineering
Production Engineering
Difficulty: Easy
Choose an option
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AMinimum at the beginning; maximum at the end
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BMaximum at the beginning; minimum at the end
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CUniform throughout the cut
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DNone of these
Answer
Correct Answer: Minimum at the beginning; maximum at the end
Explanation
ConceptIn up (conventional) milling, the tooth starts cutting with zero chip thickness and exits with the maximum thickness. This is opposite to down milling.
WhyThe instantaneous uncut chip thickness grows as the relative sliding between the tooth and work increases along the engagement path.
Final AnswerMinimum at the beginning; maximum at the end.