Producibility Elements Highlighted:
Understand Current Process Capabilities (Company and
Perform Trade Studies on Alternative Product and Process
Raytheon TI Systems (Dallas, TX) uses Process Capability Analysis (PCA) to focus on key manufacturing process capability constraints in the early design phases. By understanding and designing within process capability constraints during the conceptual and detailed design phases, designs have a significantly greater probability of meeting cost, cycle time, and quality goals. Because balancing cost, cycle time, and quality considerations within the PCA prove to be difficult and time-consuming, Raytheon Systems Company has developed the PCA based on a series of Process Capability Models (PCMs) to quickly predict the impact to cost, cycle time, and quality.
Input derived from the design features and characteristics mapped to the company's manufacturing process capabilities are used to determine which processes will be required to produce the given design. Comparing the known manufacturing process capability constraints with the current state of the design, the PCMs provide the user immediate feedback on predicted cost, cycle time, and Six Sigma ratings for the design.
The PCMs are based on historical data and expert knowledge. They are performed on individual fabrications at the part level to top system assembly level. The PCA is currently based on over 255 PCMs that are validated and maintained with current manufacturing process capabilities. This information is critical input to design tradeoff analysis efforts, which are optimally conducted as early in the design process as possible to maximize benefits.