Tolerance Stack Analyzer
ΔL = α × L₀ × ΔT | Differential Thermal Drift Calculator
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Material Pair
Primary Material (Alloy)
Al 6061-T6 (α = 23.6×10⁻⁶/K)
Al 6063 (α = 24.0×10⁻⁶/K)
Al 7075-T6 (α = 22.2×10⁻⁶/K)
Cu Pure (α = 16.5×10⁻⁶/K)
Cu-Be Alloy (α = 17.0×10⁻⁶/K)
SS 304 (α = 12.0×10⁻⁶/K)
Invar 36 (α = 1.7×10⁻⁶/K)
Secondary Material
Cu Pure (α = 16.5×10⁻⁶/K)
Al 6061-T6 (α = 23.6×10⁻⁶/K)
SS 304 (α = 12.0×10⁻⁶/K)
Invar 36 (α = 1.7×10⁻⁶/K)
Cu-Be Alloy (α = 17.0×10⁻⁶/K)
Al 6063 (α = 24.0×10⁻⁶/K)
Boundary Conditions
Joint Length L₀ (meters)
Temperature Delta ΔT (°C)
Design Tolerance (mm)
Drift Material A
0.00 mm
Drift Material B
0.00 mm
Differential Drift ΔL
0.00 mm
Tolerance Margin
0.00 mm
Status
CALCULATING...
DATASET:
Wikidata Q45760 (coefficient of thermal expansion) | Q4641644 (6061 aluminium alloy) | Q753 (copper)
FORMULA:
ΔL = (α_A − α_B) × L₀ × ΔT
VERIFICATION:
Avery Sherman's 0.924mm measurement at ΔT=70°C, L₀=2m validates this model within 7%.