Jinsi ya kukokotoa Tolerance Stack
Tolerance Stack ni nini?
Tolerance stack-up analysis determines cumulative effect of individual component tolerances on final assembly. Critical for assembly success.
Fomula
Statistical method: total = √(sum of squares) — more realistic
Mwongozo wa Hatua kwa Hatua
- 1Linear stack: total tolerance = sum of individual tolerances (worst case)
- 2Statistical method: total = √(sum of squares) — more realistic
- 3Design tolerances to achieve assembly fit requirements
Mifano Iliyotatuliwa
Ingizo
Four parts each ±0.5mm, total stack tolerance requirement ±1.5mm
Matokeo
Worst case stack = 2.0mm (exceeds), statistical = 1.0mm (passes)
Statistical justified
Makosa ya Kawaida ya Kuepuka
- ✕Adding worst-case tolerances without justification
- ✕Ignoring correlation between tolerances
Maswali yanayoulizwa mara kwa mara
When to use worst case vs. statistical?
Worst case for critical assemblies; statistical for high-volume production where cost matters.
How do you reduce stack tolerance?
Use fewer parts, use larger dimensions, or reduce individual component tolerances.
Je, uko tayari kukokotoa? Jaribu Kikokotoo kisicholipishwa cha Tolerance Stack
Jaribu mwenyewe →