'Datum reference' presentation slideshows

Tolerancing

Tolerancing. Chapter 10. Objectives. Describe nominal size, tolerance, limits, and allowance of two mating parts Identify a clearance fit, interference fit, and transition fit Describe the basic hole and basic shaft systems. Objectives (cont.).

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Tolerancing

Tolerancing. Definition: Allowance for specific variation in the size and geometry of a part Need for Tolerancing It is IMPOSSIBLE to manufacture a part to an EXACT size or geometry Since variation from the drawing is inevitable we must specify the acceptable degree of variation

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ADVANCED MECHANICAL DRAFTING

ADVANCED MECHANICAL DRAFTING. LECTURE #23. PROFILE TOLERANCE ZONES. PROFILE OF A LINE. PROFILE OF A SURFACE. PROFILE OF A LINE. Forces a surface to have a profile of some desired shape No datum reference No diameter symbol Cannot be modified Dimensions defining profile shape are basic.

563 views • 16 slides