Meaning
Points in a manufacturing process where measurement activities delay the release of finished goods to the next stage. A metrology bottleneck occurs when the demand for precision inspection exceeds the available capacity of measuring machines or technicians. It represents a constraint on total factory output.
Capacity Constraint
Production schedules are frequently disrupted when parts wait in a queue for hours or days to be measured. A metrology bottleneck often appears at the end of a shift when multiple production lines finish their batches simultaneously. This leads to a surge in work for the quality lab that exceeds its physical space and equipment availability.
Engineers resolve this by implementing faster measurement methods or by moving some checks onto the production floor.
Queue Management
Priority levels are assigned to urgent orders to ensure they bypass the standing line of parts waiting for validation. A metrology bottleneck can be managed by using statistical process control to reduce the number of parts that require 100 percent inspection.
Production Delay
Late shipments are often traced back to a failure in the measurement department rather than a machining error. The metrology bottleneck is the most common reason for a mismatch between a supplier’s forecast and their actual demonstrated rate of delivery. Removing this constraint is often the cheapest way to increase total factory throughput.
