What is the appropriate rivet length for joining a sheet of 0.032-inch and 0.064-inch aluminum alloy?

The correct choice relates to how rivet lengths are determined based on the materials being joined. When you are joining sheets of differing thicknesses, the rivet length must accommodate both materials adequately while also providing a strong joint.

In this scenario, the sheets have thicknesses of 0.032 inches and 0.064 inches. The sum of these thicknesses equals 0.096 inches. To ensure a solid connection that allows the rivet to properly engage both pieces, a formula is used to calculate the appropriate rivet length. The choice about one and one-half times the rivet diameter, plus an additional 0.096 inches, ensures that there is enough material for the grip of the rivet to safely penetrate both sheets.

This approach allows for the account of both workpiece thicknesses along with a margin for proper mechanical joint strength. In essence, it helps ensure that the rivet is neither too short (which might fail to hold both sheets together) nor excessively long (which could lead to unnecessary protrusion and potential weakening of the joint).

The other options do not adequately account for the varying material thicknesses or do not follow standard industry practices for establishing rivet lengths effectively. Therefore, ensuring proper calculation is crucial for creating durable and