For turning operations using centers, what type of center is typically installed in the tailstock?

For turning operations using centers, what type of center is typically installed in the tailstock?

• A. Live center
• B. Dead center
• C. Centers
• D. Centering center

Answer: (C)

In turning between centers, the tailstock supports the far end of the work with a center that often rotates with the workpiece. Using a live center in the tailstock is the usual setup because it spins with the part as the spindle turns. This minimizes friction, heat, and wear at the contact point and helps keep the work accurately centered during cutting. A dead center, which does not rotate, would create more friction and heat and is generally avoided for turning between centers unless a specific non-rotating condition is required for a particular operation. The term centers refers to the general device, but the typical installed type for turning is a live center.

In turning between centers, the tailstock supports the far end of the work with a center that often rotates with the workpiece. Using a live center in the tailstock is the usual setup because it spins with the part as the spindle turns. This minimizes friction, heat, and wear at the contact point and helps keep the work accurately centered during cutting. A dead center, which does not rotate, would create more friction and heat and is generally avoided for turning between centers unless a specific non-rotating condition is required for a particular operation. The term centers refers to the general device, but the typical installed type for turning is a live center.