Vision systems for inspection: What to look for in a system intended for manual assembly

Even though inspection is considered as a non-value added activity, our processes are not stable enough to eliminate inspection completely. Even when we all are working continuously to improve the process stability and capability, eliminating inspection is still very far from reality. Manual assembly, even at its best, is still vulnerable to errors because humans […]

Humans and machines: An inspection power combo

Inspection is a process that can be done by humans or machines, and both parties have strengths and weaknesses. Take humans: they can make inferences on the fly and notice things that they haven’t been specifically pre-instructed to notice. If a part rolls through an inspection station with a different orientation than expected, a human […]

Inspection answers the “what.” You really need answers to “why?”

Most manufacturing professionals are familiar with the 5 Whys as a tool for problem-solving. This iterative technique is used when a problem has been identified, but the root cause is unclear — or, to put it another way, when you know “What” but you don’t know “Why.” To get to “Why,” the investigation team literally asks […]

Rethinking quality inspection for manual assembly

Control: You either have it or you don’t.  Understanding if processes are in control is just one of the jobs that quality inspectors take on. They employ both inspection and testing, so that customer requirements are met and assembly operations stay compliant to regulations. Good things happen when there are controls in place and everything […]