Processing Machinery
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PTFE Machining Chipping
Fenómeno del problema
Edge chipping, cracks, and dimension out-of-tolerance during PTFE machining, short tool life, unstable machining quality.
Análisis de la causa
PTFE semi-crystalline structure brittleness; dull tools with large cutting force; internal stress in material released during machining causing deformation; improper cutting parameters.; When troubleshooting on site, verify item by item according to this mechanism, avoiding blind machine adjustment based only on experience
Solución
①Sharp tools with low cutting force; ②Select low-stress materials; ③Optimize cutting parameters; ④Dimensional aging verification after machining.; After adjustment, continuously sample to verify the effect, confirm stability before resuming mass production
Conclusión clave
PTFE machining must control cutting force and stress; tool sharpness is the foundation; aging verification ensures precision.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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