Tolerances

Tolerances

1. What is tolerance?

   • Tolerance is an acceptable margin of error for manufactured parts, publications, garments or electronic components for example
     • This can be applied to measurements, weight, voltage, resistance or properties e.g. elasticity
     • Tolerances are often given as (±) e.g. ±1mm

2. Why are tolerances used in designing?

   • Tolerance optimization during design has a positive impact on the yields coming out of manufacturing, and better yields directly affect product cost and quality. Analyzing tolerances and variations before trying to produce a product also helps engineers avoid time-consuming iterations late in the design cycle

3. What is the use of tolerance?

   • It is up to you to decide which lengths are critical to the part's function. ASME Y14.5M defines tolerance as “the total amount a specific dimension is permitted to vary.” Tolerance is the difference between the maximum and minimum limits. ... This range of allowable dimensions is the tolerance band.

4. Why use tolerances?

   • If you leave a dimension without a tolerance, no one else will know the importance, or the unimportance, of that dimension. When used correctly, you have much to gain when using tolerances. Parts with proper tolerances will fit as desired, be it a sliding fit, or a press fit. It can also reduce costs

5. What is tolerance in design?

   • Engineering tolerance is the permissible limit or limits of variation in: a physical dimension; a measured value or physical property of a material, manufactured object, system, or service; ... in mechanical engineering the space between a bolt and a nut or a hole

6. what has to be a high tolerance

   • car
     • door and window
     • wheel nuts
     • engine
   • furntiure
     • flat pack
     • arm chairs