Which statement about forming roll grooves is correct?

• A. Grooves on end of roll must be used
• B. Grooves on the sides are sufficient
• C. There is no requirement for grooves
• D. Grooves are optional

Answer: (A)

End grooves on the forming roll are important because they grip and guide the sheet as it wraps around the roll, giving you a positive point of engagement for feeding and alignment. This helps prevent the stock from slipping, wandering, or wrinkling as it moves through the forming area, which is essential for consistent, controlled forming. Grooves on the sides alone don’t provide that entry grip and direction, and skipping end grooves can lead to misfeed and defects. That’s why using grooves at the ends of the roll is a requirement.