Designs are passed through FMEA for control and monitoring of the design function and to establish the platform for Quality.
The designs in most cases pass through prototype tooling or preproduction tool trials to confirm capabilities and to establish initial SPC limits.
The goal is zero defects, which can be achieved through the use of capable processes and statistically based monitoring. Computerised Camera Inspection systems to reject known defects, play an important role in attaining the ultimate goal.
Continual improvement is needed to increase the capability of processes and because of variations in batches of materials, continuous monitoring of the variables with the use of a rheometer can assist in maintaining the required quality.