In what axis must an operator touch off and zero the cutting tool for facing operations on the engine lathe?POSSIBLE ANSWERS:Z axisY axisX axisC axis

Breakdown the Problem

1. Understanding Facing Operations: Facing operations on an engine lathe involve removing material from the end of a workpiece to create a flat surface.
2. Identifying Relevant Axes: The operation can occur in different axes, but we need to determine which one indicates the correct action for zeroing the cutting tool.

Relevant Concepts

1. Lathe Axes Definitions:
   • X Axis: Typically represents left/right movement, affecting the diameter of the workpiece.
   • Z Axis: Represents in-and-out movement, affecting the length of the workpiece.
   • Y Axis & C Axis: These are not primarily relevant for basic facing operations on a standard engine lathe.

Analysis and Detail

1. Touching Off: In facing operations, the cutting tool must be positioned at the end of the workpiece. This typically involves moving forward to the face of the part, which is defined along the Z axis.
2. Zeroing: The operator zeros the tool at this point to ensure proper measurements for subsequent cuts.

Verify and Summarize

1. The cutting tool must touch off and be zeroed in the Z axis for effective facing operations on the engine lathe.

Final Answer

The operator must touch off and zero the cutting tool in the Z axis for facing operations on the engine lathe.