The head of the rivet should fit loosely into a cupped rivet die. True or False?

The statement that the head of the rivet should fit loosely into a cupped rivet die is false. A proper fit is critical in the riveting process to ensure that the rivet is adequately formed and has the necessary mechanical properties to withstand loads and stresses.

When the rivet head fits correctly into the cupped die, it allows for proper deformation of the rivet during the riveting process. This deformation is essential to create a secure joint between the materials being fastened. If the rivet head were to fit loosely, it could lead to improper shaping, inadequate joint integrity, and potential failure under load.

Moreover, guidelines and specifications for riveting often detail the necessary tolerances and fits to ensure effectiveness and reliability in aerospace assemblies. Hence, the correct fitting of the rivet head is paramount to achieving the required strength and safety in the assemblies being constructed.