Fabricated to a density of 6.95 g/cm³, the rotor has a tensile strength of 105,000 psi, yield strength of 55,000, and 89 HRB hardness. The part is resin impregnated for leak prevention and machinability improvement. All inside and outside diameters are turned to size. Tooth flanks are milled for the required fit with other pump components.
Using PM for this part resulted in:
- a cost savings estimated at 22% over alternative processes such as machining rolled bar and casting;
- higher material utilization;
- reduced transportation costs.