Thermoforming
6 مشاهدة
PMMA Cooling and Setting
ظاهرة المشكلة
PMMA thermoformed parts spring back and deform after demolding
تحليل الأسباب
Demolding occurs before sufficient cooling and setting, and residual stress causes shape springback; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry literature and should be confirmed first during troubleshooting
الحل
Extend in-mold cooling time; control the temperature of the setting mold; use fixtures to assist setting after demolding; after adjustment, take samples continuously to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
الخلاصة الأساسية
Sufficient cooling and setting of thermoformed parts prevents springback; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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