Processing Machinery
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Strength Design of PLA Products
Problem Phenomenon
Strength does not meet design requirements.
Cause Analysis
PLA tensile strength has a wide range of 21~60MPa; grade and crystallinity have great influence.; During on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience
Solution
①Select the grade according to requirements; ②Control crystallinity; ③Verify by actual testing; ④Structural design reinforcement.; After adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PLA strength range is wide; grade selection and crystallization determine the actual value.; 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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