In a perfect world, intelligent designs flow through manufacturing processes, assemble without scrap, and the application exceeds its life expectancy -- everybody's real happy. Continual improvements in engineering and quality bring manufacturerscloser to those goals.Sounds wonderful, but lurking in the shadow of reality are events that keep Murphy's Law with us and things that can go wrong do. Most of these speed bumps don't have to happen; most can be avoided. We'll call them collateral damage -- free modificationsthat weren't planned. These alterations are more likely on threaded parts, especially fine threads; however, they're possible on many configurations. Basic common sense and some practical steps can go a long way toward protecting your sales.Consider that net shapes can have close tolerances, delicate intersections at corners, fine threads, lead threads, camber limitations, micro finishes or some important cosmetic feature. Generally, anything done to a quantity of product or even a singlepart involves handling. Physical movement through operations can cause damage, particularly on heavier pieces, yet forethought can help prevent ruining an unpredictable percentage.
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