Which process uses an abrasive spinning grinding wheel to remove material or smooth it?

• A. Grinding
• B. Milling
• C. Turning
• D. Drilling

Answer: (A)

The main idea is recognizing which manufacturing process uses an abrasive wheel that spins to grind away material or smooth a surface. Grinding employs a bonded abrasive wheel that spins at high speed, and the abrasive grains do the cutting by rubbing against the workpiece. This removes small, precise amounts of material and can produce very smooth finishes and tight tolerances.

Milling, turning, and drilling rely on cutting tools rather than an abrasive wheel. Milling uses rotating cutting tools with multiple edges to remove material and shape features, typically in slots, pockets, or complex profiles. Turning uses a single-point cutting tool on a lathe to produce cylindrical shapes by removing material from a rotating workpiece. Drilling uses a drill bit to create holes by cutting with a helical edge. So, the abrasive spinning grinding wheel specifically points to grinding.