Lathe operations: identify the purpose of the facing operation Facing is a basic turning operation performed on a lathe. Choose the correct description of what facing does to the workpiece.
Mechanical Engineering
Production Engineering
Difficulty: Easy
Choose an option
-
ABevelling the extreme end of a workpiece
-
BEmbossing a diamond-shaped knurl on the surface of a workpiece
-
CReducing the diameter of a workpiece over a very narrow surface
-
DMachining the end face to produce a flat surface square to the spindle axis
Answer
Correct Answer: Machining the end face to produce a flat surface square to the spindle axis
Explanation
Given / ConceptFacing on a lathe cleans up and squares the end of a rotating workpiece by feeding the tool radially toward the center.
Why option (d) is correctFacing generates a flat surface that is perpendicular to the axis of rotation, establishing a true reference face for length measurements and subsequent operations.
Eliminate the distractors(a) Bevelling is a chamfering operation, not facing.(b) Diamond pattern is from knurling, not facing.(c) Reducing diameter over a narrow band is a form of turning/undercutting, not facing.
Final AnswerMachining the end face to produce a flat surface square to the spindle axis.