Plastic materials present unique machining challenges due to their thermal properties. The thermal expansion rate of plastic exceeds that of metal by more than 10 times, and plastic parts dissipate heat more slowly while having significantly lower softening temperatures.

While increased feed rates and milling speeds can reduce machining time and improve heat dissipation, engineers must carefully control these parameters. Statistical analysis shows that a 10% increase in cutting speed raises plastic surface temperature by approximately 14-30%, requiring precise thermal management.

Standard coolants work well for most plastics, but special consideration is required for amorphous materials like ULTEM, PC, and PPSU, which are susceptible to stress rupture. Our facility uses spray cooling and compressed air systems specifically for processing these sensitive materials.