Tolerance Stack Nasıl Hesaplanır?
learn.whatIsHeading
Tolerance stack-up analysis determines cumulative effect of individual component tolerances on final assembly. Critical for assembly success.
Formül
Statistical method: total = √(sum of squares) — more realistic
Adım Adım Kılavuz
- 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
Çözümlü Örnekler
Giriş
Four parts each ±0.5mm, total stack tolerance requirement ±1.5mm
Sonuç
Worst case stack = 2.0mm (exceeds), statistical = 1.0mm (passes)
Statistical justified
Kaçınılması Gereken Yaygın Hatalar
- ✕Adding worst-case tolerances without justification
- ✕Ignoring correlation between tolerances
Sık sorulan sorular
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.
Hesaplamaya hazır mısınız? Ücretsiz Tolerance Stack Hesaplayıcıyı deneyin
Kendiniz deneyin →