Defects and faults in slitting common rolled parts
Slitting is a form of rolling in which parts of a larger part are reduced in size by passing them through a set of oppositely rotating rolls. This rolling process is used to reduce the cross section and increase the length of the material. Commonly slitting produces flat bars, rods and tubes. Slitting process can be used to produce two-dimensional or three-dimensional shapes like strips, tubes, laminates, and squares. However, there are some common defects and faults during the slitting process which are discussed below.
Common Defects during Slitting
1. Slit width variation: Slit width variation is one of the most common defects observed during slitting process. This defect occurs when the thickness of the rolls used in the slitting process is not uniform. As a result, the width of the slit produced is also not uniform.
2. Edge chipping: Edge chipping is another defect which is observed during slitting process. This defect occurs when the edges of the slit material are chipped due to uneven slitting tension or incorrect cutting angles.
3.Roll Breakage: Roll breakage or cracks in the rolls of the slitting machine is another common defect observed during slitting. This defect can cause the parts produced to be uneven or have irregular textures or shapes.
4. Uneven slitting tension: Uneven slitting tension is also a common defect observed during slitting process. This defect occurs when the tension on one side of the sheet material is not equal to the other side. This results in the edges of the sheet material being distorted or uneven.
Common Faults during Slitting
1.Incorrect material selection: Inappropriate material selection is one of the most common faults observed during slitting. The choice of material in the slitting process should be made carefully as incorrect material selection can lead to defective parts being produced due to the wrong parameters used in the process.
2.Imbalance between the rolls: Imbalance between the rolls is also a common fault in slitting. This fault occurs when one roll of the slitting machine is heavier than the other roll. This can lead to the parts produced being uneven and having distorted shapes.
3.Inadequate lubrication: Inadequate lubrication is another fault which is observed in the slitting process. This fault can cause the material to stick to the rolls which can affect the quality of the parts produced.
4.Inefficient blade sharpening: Inefficient blade sharpening is also a fault which is observed during slitting. This fault occurs when the blades used in the slitting process are not sharpened properly which can affect the quality of the parts produced.
Conclusion
In conclusion, slitting is a rolling process which is used to reduce the cross section and increase the length of the material. However, there are common defects and faults which can occur during the slitting process. These defects and faults can affect the quality of the parts produced. Therefore, it is important to use the correct parameters in the slitting process and ensure that the parts produced are of the desired quality.
