Preventing tool rubbing on the work: what geometry feature is used? In single-point cutting tools, which feature is provided to avoid rubbing and to ensure only the cutting edge contacts the work? Choose the correct feature.
Mechanical Engineering
Production Engineering
Difficulty: Easy
Choose an option
-
ARake angles
-
BRelief (clearance) angles
-
CApproach angle
-
DNose radius
Answer
Correct Answer: Relief (clearance) angles
Explanation
Given/ConceptTo prevent rubbing, the tool's flank is ground with a clearance (relief) angle so the surface behind the cutting edge clears the newly machined surface.
Why others are wrong
- Rake angles mainly influence chip flow/forces.
- Approach angle is tool orientation in plan view.
- Nose radius improves finish/edge strength but does not create clearance.
Final AnswerRelief (clearance) angles