Processing Machinery
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ASA FDM Warpage and Cracking
Problem Phenomenon
【Problem Phenomenon】ASA printed parts corner warpage and interlayer cracking, more obvious on large parts
Cause Analysis
ASA shrinkage is relatively high, uneven cooling produces internal stress warpage; large temperature difference in open printer environment is the main cause; insufficient bed adhesion aggravates; during on-site troubleshooting, verify item by item according to this mechanism, avoid blindly adjusting the machine based only on experience
Solution
Enclosed chamber printing; bed temperature 90-110℃ maintained throughout; adhesive plus brim; reduce printing speed; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
ASA printing warpage relies on the three-piece set of chamber, heated bed and adhesion; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems
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