Abstract
The concept of concurrent engineering is that designers, manufacturing engineers and all other members of the new product development team can work simultaneously or co-operate closely to avoid redesign and other problems at a later stage. The finite element method/FEM is the kernel of the approach. It enables the designed outputs to be optimal, robust and efficient so that high quality products could be achieved at a low cost in the shortest delivery time. The scroll components work in a high pressure and high temperature environment, which results in the deformation of the scroll wall. If the deformation was too great the vacuum pump would fail and would have to be redesigned and remanufactured. The designer can seek optimization under the limitations imposed by the displacement or stress of the scroll wall. The FEM and optimization can evaluate the deformation due to the cutting force and compensate accordingly.
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