Material Analysis
10 조회수
PA12 SLS Powder Recycling Ratio
문제 현상
【Problem phenomenon】Using all new powder was costly, and after increasing the proportion of recycled powder, the quality of printed parts declined
원인 분석
Recycled powder has degraded performance after thermal aging and must be blended with new powder: a common 1:2 (recycled:new) ratio is mixed, and the recycling rate can reach more than 80% without significantly affecting part performance
해결 방법
Sieve out impurities and large particles from recycled powder and mix it with new powder at 1:2; establish traceability of powder use times; reduce the proportion of recycled powder for quality-sensitive parts; after adjustment, take consecutive samples to verify the effect, and resume mass production only after confirming stability
핵심 요약
Blending recycled powder with new powder at 1:2 is the economic-quality balance point, and use times must be traced; after confirming effectiveness, solidify 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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