What is the consequence of not driving heat-treated rivets in time after heat treatment?

When heat-treated rivets are not driven within a specified time frame after heat treatment, it is crucial to understand that one of the primary consequences is the loss of their optimized mechanical properties.

Heat treatment is designed to enhance the strength and hardness of the rivet material through specific heating and cooling processes. If the rivets are not used promptly, they can undergo changes in their microstructure, potentially leading to a reduction in hardness or strength. This is particularly true for certain aluminum alloys which can lose their properties if not utilized in a timely manner. As a result, reheat treatment may be required to restore the desired characteristics before the rivets can be used effectively.

Thus, this process ensures that the rivets will maintain their structural integrity and performance capability when installed in applications.