11/23/2021

Support of tension trims to improve cut quality, dimensional accuracy and angularity

intelliDivide Cutting

Parameters for inserting tension trims

Cutting patterns with inserted tension trims (yellow).

Cutting patterns with inserted tension trims (yellow) in productionAssist Cutting

Due to storage and transport, e.g. from the outside to the inside, stresses can build up in boards as a result of temperature and humidity differences. These are released when the board is cut and thus lead to a reduction in the cut quality, dimensional accuracy and angularity of the cut parts.

To prevent this, intelliDivide Cutting now supports the targeted insertion of tension cuts. These release the stresses and the so-called banana effect can be reduced or avoided. The subsequent final cut can then be executed with high accuracy.

Whether and how many tension trim cuts are necessary depends strongly on the quality of the boards, the environment and the quality requirement. Each tension trim involves an additional loss of material and time. The right balance must be found.

The following parameters are available to adjust the behavior:

• Use tension trims
  Activates or deactivates the insertion of tension trims.

• Width incl. saw blade
  Sets the width of the tension trim. A tension trim requires three cuts. Accordingly, the width should be at least three times the saw blade width plus an allowance.

• Minimum cutting length
  Stresses lead to dimensional accuracy problems, especially with long cuts. As a rule, tension trims are sufficient when cutting strips. The parameter can be used to define the length of a cut from which a tension cut is to be inserted. The smaller the value, the more tension trims are created.
   
• Minimum distance
  The parameter can be used to adjust the minimum distance between tension trims. If, for example, a strip is narrower than the entered value, a second tension trim is not inserted. The higher the value, the fewer tension trims are created.

The parameters are preset with values frequently used in practice.