Material Analysis
14 visualizações
PTFE Cracking and Fracture
Fenómeno do problema
PTFE parts develop cracks or fractures, structural integrity is lost, and failure risk under load increases.
Análise das causas
Rapid cooling after sintering generates internal stress; mechanical stress overload during machining or handling; too high content of fillers such as glass fiber, carbon fiber, and bronze makes the material brittle; dropping or bending causes cracks in the semi-crystalline structure.
Solução
①Anneal after sintering to release internal stress; ②Handle carefully during post-processing and transportation; ③Optimize filler content and type to maintain toughness; ④Use appropriate tooling for machining to avoid excessive cutting force.
Conclusão principal
PTFE cracking requires cooling management, filler balance, and handling protection together; filler reinforcement and toughness trade off against each other; machining force control is a detail.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!