Molds & Tooling
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PLA product ejector whitening and cracking
Fenómeno del problema
Whitening or cracking during ejection.
Análisis de la causa
PLA is very brittle and cracks when ejection force is concentrated; insufficient cooling results in low strength.; 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 data and should be confirmed first during troubleshooting
Solución
① Increase ejection area; ② extend cooling; ③ balanced ejection; ④ ensure demolding draft.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Conclusión clave
Brittle PLA ejection requires distributed force and sufficient cooling.; after confirming effectiveness, fix 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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