Which consequence results when tight tolerances are improperly applied during robotic welding of a car chassis?

A)Joint fatigue resistance is unchanged

B)Distortion and residual stress rises✓

C)Material toughness surprisingly improves

D)Weld cooling rates remain unaffected

💡 Explanation

Increased distortion and residual stress occur because volumetric changes during solidification are constrained by surrounding parts, increasing internal forces. Therefore, stress rises rather than being unchanged, because the contraction meets resistance within the tight geometric constraints.

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Which consequence results when tight tolerances are improperly applied during robotic welding of a car chassis?

💡 Explanation

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