In CNC machining, what is the term "program verification" used to describe?

The term "program verification" refers to the process of checking the programming code for errors prior to execution on a CNC machine. This step is crucial as it ensures that the program is logically sound and free from mistakes that could lead to machining errors, equipment damage, or safety hazards. By conducting program verification, operators can confirm that the commands and instructions written in the program align with intended machining operations, therefore enhancing efficiency and accuracy.

The other options describe related but distinct processes within CNC machining. Testing machine movements without tooling involves a verification step, often referred to as dry running, but it does not encompass the broader scope of checking the entire program for logical accuracy. Simulating machining operations in virtual space allows operators to visualize the process, helping to identify potential problems before actual machining begins, but it is not strictly about verifying the program code itself. Calibration of tool offsets is vital for ensuring precision in machining but is specifically focused on adjusting tool measurements rather than verifying the programming commands.