Whilst some of these issues may be attributed to poor material quality, they are more often caused by irregularities which occur in the system during the coil slitting process. Problems during the slitting process include edge waves, crossbow, knife marks, burrs, camber and inconsistent slit widths. What are some of the problems encountered in coil slitting? Whilst each piece of metal work has its own optimal knife clearance, achieving an accurate clearance is more challenging with thinner metal. To achieve uniform results, the outcome has to be assessed and adjustments made with each operation. The blades on the slitter must be adjusted based on the tolerance that needs to be maintained throughout the slitting, and the type and thickness of the material being slit. What determines the blade configuration during the slitting?Ĭoil slitting can be applied on both coil and sheet rolls. Prior to being slit, the original coils are placed on an uncoiler drum for uncoiling, before being flattened on a leveller ready for slitting. The slit pieces are cut at a smaller width whilst retaining the same length. Coil slitting is the process of cutting wide metal coils into narrower coils.
