Extrusion & Post
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PLA extrusion sheet uneven thickness
Problem Phenomenon
Extruded sheet thickness deviation.
Cause Analysis
Uneven die lip gap or uneven temperature distribution; PLA melt elasticity affects discharge.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solution
① Fine-tune the die lip gap; ② balance die temperature; ③ stabilize extrusion output; ④ online thickness measurement.; after adjustment, continuously sample 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
Key Takeaway
Sheet thickness relies on die lip and temperature control management.; 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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