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This was really an inspection error. A human can miss a weld, too, so manufacturing lines rely on inspections. Someone was signing off on work that wasn't done.
by rustcharm 8y ago
This was really an inspection error. A human can miss a weld, too, so manufacturing lines rely on inspections. Someone was signing off on work that wasn't done. Whether a human or a robot was supposed to do that work is a nit.
- 9wzYQbTYsAIc 8y agoFrom TFA: “[Subaru] found an Ascent with the missing welds during a routine sampling inspection on 21 July” The affected vehicles were built between 13th and 21st. Not sure how long QA takes for a vehicle, but they found it within a week.
- Timmah 8y agosampling inspection. Not a hard software check: `assert ( numWelds == 30);` Or a camera that takes a picture of each vehicles undercarriage. They probably thought that was unnecessary until now.
- 9wzYQbTYsAIc 8y agoCould have been an error of requirements causing both the robot control code and any automated testing to be incorrectly implemented.
- visarga 8y agoYep, someone forgot to put those welding points and others didn't observe them missing.
- ashelmire 8y agoLiterally the whole focus of the article is that the machines had some programming error causing them to not complete the welds sometimes (but not always) and that this was found during a regular inspection.
- rustcharm 8y agoNo. It was found during a sample inspection. That’s too late.