Why is evaluating metal fatigue essential in repairs?

Evaluating metal fatigue is essential in repairs because it helps ascertain whether the metal can safely endure the proposed repair processes without compromising its integrity and performance in the future. Metal fatigue refers to the weakening of metal structures due to repeated stress cycles, which can lead to failures if not properly addressed. By assessing potential fatigue, technicians can ensure that the metal remains structurally sound after the repair, minimizing the likelihood of additional damage occurring over time. This evaluation contributes to the longevity and reliability of the repaired component, ultimately ensuring safety and effectiveness in the repaired vehicle.