Critical Casting Design Issues --The requirements for performance, castability/manufacturability , and cost are closely interconnected. Four casting design issues played a major role in meeting the three design imperatives.

• Select the steel composition that meets the mechanical property requirements.
• Design the critical features for stress reduction and metal flow.
• Choose a molding system that meets tolerance and cost targets.
• Design an orientation and rigging system that minimizes shrinkage in the castings.