Cross bow occurs when the coil edges bow up or down, creating a frown or smiley face. Cross bow can be caused by several varied factors in processing and requires a metallurgist to come …

Jan 1, 2010 · Cross bow occurs when the bottom side of the material is shorter than the top side when measured across the width of the coil. This condition is usually induced during coil …

Mar 22, 2023 · Crossbow defects occur when a strip of material exhibits a curvature across its width, resembling the shape of a bow. This can lead to slitter-induced edge wave and outgoing …

Crossbow is a bow condition perpendicular to the rolling direction, and curves downward in the same direction as the upper outside lap of an overwound coil, with the center portion of the …

Mar 7, 2006 · Like camber, crossbow might be caused by a defect in the master coil or from the slitting process. Usually crossbow is caused by too much overlap (vertical clearance) or by …

Jul 13, 2021 · Correcting a center buckle requires the edges to be stretched to meet the length of the center of the coil. Defect #4: Crossbow A crossbow is a defect where the top surface of the …

This internal stress can manifest itself as: Coil set, Crossbow, Edge wave and Center buckle. All of these can be removed or lessened by straightening, flattening or leveling of the sheet material.

Coil Set is caused by winding the coil under tension. This makes the outer surface slightly longer than the inside surface. When Coil Set is pulled lengthwise, the longer outside wrap will cause …

Sheets with coil set will keep the shape of the coil after uncoiling instead of laying flat. Center buckle occurs when the center of the coil or plate are longer than the edges of the coil/plate. …

Sep 20, 2023 · Shape correction with tension levellers – Tension levellers can correct coil set, cross bow, buckle, and wavy edges, as well as twist and camber. As shown schematically in …