Processing Machinery
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PSU Substitution Under Cost Pressure
Problem Phenomenon
Under high cost pressure of PSU, substitute materials were considered; insufficient assessment of performance loss led to substitution failure.
Cause Analysis
PSU cost is high but performance is unique; substitute materials are close in individual properties but have gaps in overall performance; processing technology differences; insufficient verification.; During on-site troubleshooting, verify item by item according to this mechanism, avoiding blindly adjusting the machine based solely on experience
Solution
①Systematic performance comparison before substitution; ②Processing technology adaptation verification; ③Small-batch trial use; ④Full life cycle cost assessment.; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PSU substitution decisions must go beyond unit price comparison; overall performance and process adaptation are key; trial verification reduces risk.; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent recurrence
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