What cutting variable describes the rate that the cutting tool moves during one rotation of the spindle?

What cutting variable describes the rate that the cutting tool moves during one rotation of the spindle?

• A. Feed
• B. Speed
• C. Depth of cut
• D. Lead angle

Answer: (A)

The rate at which the cutting tool moves during each spindle turn is feed. Feed describes how far the tool advances along the work for every revolution of the spindle, typically measured in inches per revolution (IPR) or millimeters per revolution (mm/rev). This is different from speed, which is how fast the spindle turns (rpm) or the surface speed of the cut. Depth of cut is how deep the tool penetrates into the work radially, and lead angle relates to the geometry of thread cutting, not the rate of axial tool movement. So feed directly answers how much the tool advances per revolution.

The rate at which the cutting tool moves during each spindle turn is feed. Feed describes how far the tool advances along the work for every revolution of the spindle, typically measured in inches per revolution (IPR) or millimeters per revolution (mm/rev). This is different from speed, which is how fast the spindle turns (rpm) or the surface speed of the cut. Depth of cut is how deep the tool penetrates into the work radially, and lead angle relates to the geometry of thread cutting, not the rate of axial tool movement. So feed directly answers how much the tool advances per revolution.