What is the minimum bend radius for a 90-degree bend in 0.064-inch thick 7075-T6 aluminum alloy?

The minimum bend radius for a 90-degree bend in aluminum alloys, particularly in 7075-T6, is crucial for preventing cracking or structural damage during bending. For 0.064-inch thick 7075-T6 aluminum, the industry standard typically recommends a minimum bend radius of about four times the material thickness.

Calculating this, we take the thickness of 0.064 inches and multiply it by four, which gives us a minimum radius of 0.256 inches. The closest answer provided that meets or exceeds this standard is 0.250 inches. This option aligns with the recognized guidelines for bending this specific aluminum alloy, supporting the integrity of the material while maintaining its structural properties.

Additionally, it’s essential to ensure that any bends do not exceed this radius to avoid potential failures or issues in the material's performance. In practice, adhering to these guidelines helps maintain safety and functionality in aviation applications.