Browse Publications Technical Papers 2001-01-3450
2001-10-01

Tool Wear Analysis Using Factorial Techniques 2001-01-3450

This paper reviews the developments of the ongoing research into the application of CNC machining techniques to produce plaster moulds and prototypes. The experimental work was carried out on an anthropomorphic robot that produces the near net shape plaster parts.
The milling tests were carried out on plaster using conventional cutting tools (slot-mills). The tool failure analysis was based on the tool wear (Flank wear - VB) measurement.
This work had comprised three phases. Initially, an experimental screening was carried out in order to identify the major important criteria regarding the cutting tool wear problem.
The second phase corresponded to the development of a tool life prediction model for the machining of the plaster material. The calculations were carried out using the response surface methodology and the 23 factorial design. The experimental results showed that the cutting speed is the most significant factor to the tool wear process.
Finally, results developed from a theoretical analysis with the tool life prediction model were compared with the experimental results. This test demonstrates the validity of the theoretical analysis and showed how the optimisation process can be performed using this methodology.

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