To minimize raw-stock removal, design parts for which level of removal?

• A. Min
• B. Max
• C. Medium
• D. None

Answer: (A)

The idea is to reduce the amount of material that must be cut away to reach the final part. Designing for minimum removal means starting with stock that’s already close to the final dimensions (near-net shape) so machining, finishing, and any secondary processes remove as little material as possible. This lowers cycle time, tool wear, energy use, and waste, making production cheaper and faster. If you aim for maximum removal, you’ll spend more time and expense removing material. A medium level still requires more removal than the minimum, so it isn’t as efficient. Zero removal isn’t practical for most parts because tolerances, finishes, and complex features typically demand some machining to achieve the exact geometry.