FY25_Buffer Management
2025-04-24 13:57:59 0 举报AI智能生成
Buffer Management
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大纲/内容
Lotsize
Lotsize Coverage
A(top 80% volumn): <2D, produce everday
B(5%-10% volumn): <4D, produce twice/week
C(<5% voumn): <7D, produce every week
D(Spare parts): no fixed lotsize, just produce the SO quantity
MAE restriction：Lotsizing time
Lot-sizing time should be no less than 40min of SMT production to guarantee OEE
Handling Unit
improve transport effeciency
improve storage effciency
Upstream and downstream lotsize consistency：C（一对一）一致，B评估一下
Demand fluctuation
Daily Flutuation
XYZ granularity in a month, week, day basis？
rolling forecast only provide a month basis granularity, refer to past or furture data?
rolling forecast only provide a month basis granularity, refer to past or furture data?
Prepare the MPART of the module, whcih SO due date are out of the frozen zone
open: 定义MTS max和MTS SO(frozen zone外的）优先级
SO has no forzen zone?
Material aviliability
inside the SO frozen zone or scheduling horizon zone missing raw material(example: horizon: 6days, daily plan: 60pcs)
4/10
4/11
Planned buffer preparation in advance
Movement、改造
CO change
balance capacity for new product
consume expried empty PCB
Unplanned Production Interruption
Material
Downstream material shortage(仅针对超市型号或手工下单的产品，preactor ATP check为手拉手逐层check逻辑）
Downstream material stock deviation
Trouble shooting
Downstream machine down
SMT line down， increase other line production to ensure labor efficiency
Supermarket
regularly review
material test order
sometimes, material test order may require very small quantity of MPART, generate buffer no less than one lotsize
Holiday
Weekend
long holiday
Others
Production line do not follow FIFO
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