An Expert System for Mill Cutter and Cutting Parameters Selection

This paper discusses the selection of tools in milling processes. To carry out this research, it has been developed an expert system based on numerical methods. The expert system, chooses an appropriate tool, between a known set of candidate available cutters. The knowledge base is given by limiting the process variables. They are obtained taking into account, instabilities due to tool-work-piece interaction, which are called chatter vibration, and the power available in the spindle motor. Then, a tool cost model is designed as pattern, which is then used to decide the suitable cutting tool. Once the cutting tool is selected, the optimal cutting parameters are calculated. To obtain those parameters other two cost function are designed, which are dependent on the frequency and on time domain output signal properties. An example is presented to illustrate the method. Keywords; cutter selection, milling, expert system, chatter.