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OK, our assembly lines are stationized assembly stations for building slot machines. A sample station may include harness installation, hardware installation and component installation. The operator does a self check and moves the unit to the next station. That operator (#2) checks #1's work and does their own, etc. At the end of the line is a final inspection/test and QA.
In this type of assembly operation, is it possible to statistically analyze variation and move away from visual inspection. The "variation" between skill levels, training and sheer complexity of the game scare the heck out of me. I.E. we say we are 96% Percent Zero Defects and I'm thinking, no we are probably like 70% PZD if we are lucky.
I can't see how to put a p-chart or control chart in this process to lower the inspection levels. Any thoughts?
In this type of assembly operation, is it possible to statistically analyze variation and move away from visual inspection. The "variation" between skill levels, training and sheer complexity of the game scare the heck out of me. I.E. we say we are 96% Percent Zero Defects and I'm thinking, no we are probably like 70% PZD if we are lucky.
I can't see how to put a p-chart or control chart in this process to lower the inspection levels. Any thoughts?