What type of CNC machine brings tools into contact with a rotating workpiece?

What type of CNC machine brings tools into contact with a rotating workpiece?

• A. Milling Machine
• B. Lathe
• C. Router
• D. Drill Press

Answer: (B)

The key idea is how the workpiece moves during cutting. In a lathe, the workpiece is mounted on a spindle and spins, while the cutting tool is fed into it to remove material. This setup creates the characteristic turning action, where the rotating workpiece is machined by the tool. This is different from a milling machine, where the cutting tool (a rotating end mill) moves to shape a mostly stationary workpiece. A router uses a rotating cutter on wood or plastic, with the workpiece typically fixed. A drill press uses a rotating drill bit to bore into a stationary workpiece. So the machine that brings tools into contact with a rotating workpiece is the lathe.

The key idea is how the workpiece moves during cutting. In a lathe, the workpiece is mounted on a spindle and spins, while the cutting tool is fed into it to remove material. This setup creates the characteristic turning action, where the rotating workpiece is machined by the tool.

This is different from a milling machine, where the cutting tool (a rotating end mill) moves to shape a mostly stationary workpiece. A router uses a rotating cutter on wood or plastic, with the workpiece typically fixed. A drill press uses a rotating drill bit to bore into a stationary workpiece.

So the machine that brings tools into contact with a rotating workpiece is the lathe.