In the context of lockbolts, what does "swaging" primarily refer to?

Swaging primarily refers to forming materials with a die under pressure. This process is particularly relevant in the manufacturing and assembly of lockbolts, where the fastening mechanism requires a robust connection to ensure structural integrity. During swaging, the material is deformed by compressing it against a designed die, which shapes the head of the lockbolt or the collar around it. This creates a tight and secure fastening that is essential in aerospace applications, as it helps withstand vibrations and load changes encountered during operation. In contrast, cutting materials, molding them under heat, and welding processes involve different mechanisms of material alteration and do not accurately describe the swaging technique's purpose and application in the context of fastening systems.