Material Drying
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Warpage deformation needs quantitative measurement and cause analysis
Problem Phenomenon
Warpage deformation needs quantitative measurement and cause analysis
Cause Analysis
Warpage measurement method not standardized, data inaccurate
Warpage direction inconsistent with the melt flow direction, analysis difficult
Warpage changes over time (changes after moisture absorption), PA type obvious
Warpage related to ambient temperature changes
Warpage data differs greatly under different measurement conditions (dry state/wet state)
Solution
Use CMM measurement or laser scanning to quantify warpage
Analyze the relationship between warpage direction and flow direction
PA type needs warpage measurement after conditioning
Control the measurement environment temperature
Mark the moisture content of the product at the time of measurement
Key Takeaway
Warpage needs quantitative measurement and marking of moisture conditions
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