What is the cause of the crack of PCBA welding pin

What is the cause of the crack of PCBA welding pin

With the increasing density of electronic product assembly, the process requirements for PCBA assembly become higher and higher. In the process of PCBA welding, there are more and more undesirable imaginings

PCBA pin cracked

The cracking of pins during PCBA welding is mainly caused by the following reasons.

1, due to the impact of external forces, resulting in the welding spot cracking.

2. During the PCBA post-welding process, the pincers were not sharp enough and the pincers were pulled when cutting the pincers, resulting in cracks between the component foot and the tin point.

3, due to the lack of tin, welding strength is not enough, leading to easy cracking.

The tin crack caused by PCBA welding is also closely related to the quality of welding materials. Poor quality will also affect the solidity of welding. Under the influence of external forces, cracking is easy to occur.