Not necessarily. Many tensile specimen preparation systems are built with guided interfaces that walk the operator through each step of the process. Instead of programming tool paths manually, the user typically enters the required specimen dimensions or selects them from a predefined list. The machine then handles the machining sequence on its own.
This approach is designed so that technicians, lab staff, or engineers without machining backgrounds can operate the equipment safely and consistently after a short orientation. Of course, having some familiarity with materials and basic handling always helps, but the workflow does not require traditional CNC skills or complex G-code programming.