Basic curves

 

The following basic curves of the curve profiles can result. The theoretical scenario where the knife length is exactly the same as the product length is not considered.

Knife length < nominal product length

If the knife length is less than the product length, the knife has to reduce its speed between the cutting areas. This results in the following profile (red – thin material, blue – thicker material and speed compensation in the cutting area):

[1]

Curve section with reduced speed (undersynchronism)

[2]

Curve section in the cutting area

Knife length > nominal product length

If the knife length is greater than the product length, the knife has to increase its speed between the cutting areas. This results in the following profile (red – thin material, blue – thicker material and speed compensation in the cutting area):

[1]

Curve section with increased speed (oversynchronism)

[2]

Curve section in the cutting area