You will need the workpiece to be meshed with elements about the same size as the elements in the tool. You want many elements through the thickness.
You might find it simpler to have the tool to only rotate and have the workpiece translate.
You will also soon find out how Explicit Dynamics generates very noisy output data. You will need to learn how to correctly filter the data. That means you will need the simulation to write every cycle of data to the disk. Do you have an SSD with 1 TB of space? That may be needed. Here are links to the filtering discussion: