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← TechnologyWhich risk increases markedly when stack-up tolerances in a machining process?
A)Cumulative dimensional variance exceeds limits✓
B)Increased tool wear during subsequent passes
C)Faster thermal expansion of parts
D)Higher residual stress near surface
💡 Explanation
As tolerances propagate, cumulative dimensional variance increases, due to tolerance stack-up. When component dimensions fall within their acceptable ranges, the resulting assembly dimension will deviate more, therefore risking surpassing total variation targets, rather than alternative issues like stress.
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