When inspecting clinch thickness, what is the acceptable condition for the driven head's clinch thickness in relation to the gauge thickness?

In the context of inspecting clinch thickness, the driven head's clinch thickness must be greater than the gauge thickness. This requirement is crucial because a clinch joint serves to create a mechanical interlock that holds components together. A clinch thickness greater than the gauge thickness ensures that sufficient material is present for a strong and reliable connection, providing the necessary structural integrity during operation.

Having the clinch thickness exceed the gauge thickness helps to prevent any potential failures that could arise from weak connections. It ensures that the fastened components are adequately secured, reducing the risk of loosening or separation under dynamic loads. Maintaining this standard is essential for meeting safety and performance specifications in aerospace assembly, where precision and reliability are paramount.