There was one painting workshop in China car body hood area had PVC bubble issue.The PVC bubble area was cut find that this area have a gap between hemming and PVC material.When the PVC was heated in the oven,the air expand cause bubble.Firstly to optimize the PVC material and PVC robot parameter,further body shop optimize the hemming and glue filling to prevent the gap,finally the PVC bubble issue has been solved.
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