What precaution should be taken when handling aircraft metals to prevent damage?

When handling aircraft metals, it is crucial to minimize scratches and gouges because these imperfections can significantly affect the structural integrity and performance of the metal components. Metals used in aerospace applications are often subjected to stringent safety and durability requirements. Any surface damage, such as scratches or gouges, can serve as stress concentrators, which may lead to fatigue and ultimately result in failure during operation.

Maintaining the integrity of the surface finish not only preserves the mechanical properties of the materials but also ensures that they perform as intended under various loads and environmental conditions. This is particularly important for components that will undergo high stress, as undetected surface flaws can lead to catastrophic failures.

While avoiding heavy lifting, using smooth transport methods, and storing in moisture-free areas can also contribute positively to the handling of aircraft metals, these precautions do not directly address the risks associated with surface damage. Ultimately, minimizing scratches and gouges is foundational to protecting the material's performance and the safety of the aircraft.