Indefinitely re-usable tapping, offering a constant tension in the assembly
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Tapping:
- a long and costly process
- relaxation of the plastic material results in decreased clamping force
Self-tapping screw:
- the clamping force in the assembly is highly variable from one workpiece to another because it depends on a variable friction coefficient for a single torque applied to the screw
- relaxation of the plastic material results in decreased clamping force
- the admissible traction force is limited |
