If the label carries information from which it is possible (even with the use of other sources) to find out exactly from which line and when the glass came off, then you have something to look for the factors that caused its waste. Has the temperature or humidity changed, for example? Is the scrap rate related to a specific (poorly trained) operator? Is it a result of worn tools? Although you will never catch everything, you will easily catch the biggest problems. In addition, the Pareto rule applies here that only 20% of causes are responsible for 80% of defects, so the impact on scrap reduction can be extreme. However, even if the word Apple in the headline clearly increases the number of readers, this kind of marking is nothing new and we meet it on every corner. We can find inexplicable marks or numbers on practically every thing around us. Sometimes better hidden, sometimes worse. Sometimes even funny conspiracy theories are caught on them (for example, the one about the number of “recyclings” of shelf-stable milk 😀 ). In reality, it is just some form of production identification with exactly the same purpose as the phone glasses.
The only interesting thing about those phone glasses is that as the frames (where the codes could be hidden) got smaller, Apple switched to labeling the visible area with a microcode.
2023-10-02 11:08:05
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