What must be ensured about the rolled or flared area of the flange?

Ensuring that the rolled or flared area of the flange is free of missing pieces and cracks is critical for maintaining the integrity of soldered electrical and electronic assemblies. This area is vital for the mechanical and electrical connections, and any defects can compromise the performance, reliability, and safety of the final product. Flaws such as cracks or missing material can lead to weak points that may fail under thermal or mechanical stress, potentially causing operational failures or catastrophic malfunctions.

The requirement for flanges to be in good condition without structural damage aligns with IPC standards that prioritize quality and reliability in assembly processes. Proper adherence to these standards is crucial for manufacturers to meet safety and operational thresholds in their products. Such conditions ensure optimal electrical conductivity and physical stability in assemblies, which are essential for long-lasting performance.