Processing Machinery
5 مشاهدة
PPO Secondary Processing Cracks
ظاهرة المشكلة
[Problem Phenomenon] Cracks appear after machining and ultrasonic welding of PPO products
تحليل الأسباب
Residual stress releases and cracks under the energy input of secondary processing; PPO can be secondarily processed but parts with internal stress are at high risk; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
الحل
Anneal to relieve stress before secondary processing; sharp tools and low feed for machining; optimize ultrasonic welding parameters to reduce stress; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
الخلاصة الأساسية
Anneal before PPO secondary processing; energy input will awaken residual stress; 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
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!