PROBLEMS IN PERFORMANCE OF PLASTIC PARTS
ANALYSIS OF PLASTIC PART FAILURES by RAPRA
High failure cause to low failure cause- in descending order
The predominantly material causes involved in failure were: |
The predominating process faults were: |
Environmental Stress Cracking, |
Excessive moulded-in stresses, |
Cyclic Fatigue, |
Voiding, |
Notch Sensitivity, |
Poor weld lines, |
Chemical Attack and; Stress Cracking, |
Adverse Orientation, |
UV Degradation, |
Material contamination, |
Thermal Degradation, |
Longer Residence time in the machine, |
Creep, |
Wrong material selection or poor part design, |
Buckling, |
Wrong material selection or poor part design |
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