This presentation characterizes the special features of machining composite in comparison to machining metal. Simplified theoretic models will demonstrate how CFRP should be machined without delamination, burn marks and cutting tool breakages. Different strategies can be chosen depending on the material removal rate. How a drill should be designed in order to avoid the entrance, inner and exit delamination will be discussed. The comparison between four different cutting tool technologies will prove and give a better understanding how to use this theoretical approach.
- Decide for the right cutting tool geometry in order to prevent delamination while machining composites
- Understand the reason for delamination while drilling and trimming of composite
- Understand the root cause of the “volcano effect”