Navy Aviation Structural Mechanic (AM) Practice Test

Question: 1 / 400

What is the distance from the bend tangent line to the mold point called?

Bend radius

Flat portion

Setback

The distance from the bend tangent line to the mold point is referred to as the setback. This term is integral in sheet metal fabrication and bending processes. The setback is essential for calculating the final dimensions of a bent piece to ensure that the material will correctly align with other components after bending. It accounts for the material that will be displaced during the bending process, allowing for precise cuts and measurements to maintain the integrity of the design.

Understanding setback is vital for structural mechanics, as it directly affects how the metal behaves when bent and thus influences the overall strength and performance of the aircraft structure. Properly calculating the setback helps prevent issues like excessive deformation or structural weakness that could arise from improper bends.

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Bend tangent line

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