Processing Machinery
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PMMA Polishing Method Selection
Problem Phenomenon
Fine scratches remain on the surface after buff wheel polishing, and local overburning occurs with flame polishing
Cause Analysis
Buff wheel polishing is suitable for curved surfaces but easily leaves swirl marks; flame polishing is fast but the flame intensity is difficult to control; diamond polishing has the highest precision and is suitable for flat surfaces; vapor polishing achieves optical grade but requires high equipment standards
Solution
①Choose diamond polishing for flat parts; ②fine finish after buff wheel polishing for curved parts; ③use vapor polishing for optical-grade parts; after adjustment, take samples continuously to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PMMA polishing methods are selected according to geometric and optical requirements; diamond, buff wheel, flame, and vapor each have their best applicable scenarios; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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