Cylindrical grinding methods: What best describes transverse (traverse) grinding on a cylindrical grinder?

Introduction / Context:
Cylindrical grinding can be done by plunge (in-feed) or traverse (transverse) methods. Understanding which kinematics suit long parts or specific surface finish requirements is essential in process planning for shafts, rollers, and bearing seats.

Given Data / Assumptions:

• Conventional cylindrical grinder with rotating work between centers or in a chuck.
• Wheel has finite face width.
• Radial infeed plus axial traverse of the work relative to the wheel.

Concept / Approach:
In traverse grinding, the workpiece is reciprocated axially past the wheel while the wheel feeds in radially in small steps. This is ideal for surfaces longer than the wheel face, ensuring uniform removal and good finish over the entire length. Plunge grinding, by contrast, is preferred for short surfaces equal to or narrower than the wheel face width.

Step-by-Step Solution:

Verification / Alternative check:
Process charts classify traverse grinding for L > wheel face width; plunge grinding for L ≤ wheel face width.

Why Other Options Are Wrong:

• Options describing fixed work for long parts or “shorter than wheel face” confuse plunge vs traverse definitions.
• Wheel reciprocation with stationary work is not the standard cylindrical grinding method.

Common Pitfalls:
Attempting plunge grinding on long parts causing taper or poor finish; insufficient overlap ratio during traverses leading to feed marks.

Final Answer:
the work is reciprocated as the wheel feeds to produce cylinders longer than the width of wheel face