Q: Can a laser-welded battery BUSBAR be pull-tested? Why?
Q: Can a laser-welded battery BUSBAR be pull-tested? Why?
A: A pull test is not recommended because laser welding has bonded BUSBAR and electrode plate into a whole, pull test may cause damage to BUSBAR or electrode plate, so pull test may cause damage to BUSBAR or electrode plate, so pull test is not recommended.
On the one hand, if the pull test force is small, it is not possible to accurately detect the solidity of the welded joint. If the force is too large, it may cause damage to the solder joint and lead to the separation of BUSBAR and electrode plate.
On the other hand, even if the pull test is successful, it is not possible to fully prove the solidity of the solder joint. This is because the pull test cannot take into account other possible load conditions and environmental factors, such as temperature variations, vibration, etc.
Therefore, other methods are recommended to check the quality of laser-welded BUSBAR, such as electrical testing, heat treatment, etc. These methods allow a more accurate and comprehensive assessment of the quality and performance of the welded joint.
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