Processing Machinery
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PEI Fatigue Performance Application
Problem Phenomenon
PEI fatigue failure occurs in dynamic load applications; although fatigue resistance is outstanding, improper design still causes problems.
Cause Analysis
PEI has outstanding fatigue resistance; but notches and stress concentration reduce fatigue life; surface quality influence; load spectrum matching.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solution
①Eliminate notches in fatigue design; ②surface quality assurance; ③load spectrum verification; ④fatigue life testing.; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
PEI's fatigue advantage requires design coordination; notches are life killers; verification simulates real loads.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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