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Quality and Safety

Use Cases for Manufacturers

AI for safety and quality is opening significant opportunities for zero defect, zero injury manufacturing. This is important as production speeds increase and technical tolerances decrease. Increasingly, AI is able to help manufacturers move from fault detection to fault prevention. The ability of AI to analyze multidimensional data allows manufacturers to find correlations between data from safety, quality, maintenance, and other parts of the operational space.

Graco is piloting using AI for new product quality testing. “Our standard operating procedure is to test all of our units before shipping them, and we have a ton of data about how existing products should perform during these tests,” Jill Haubenschild, Vice President of Manufacturing Excellence at Graco explained. It’s a different story for new product launches. “We typically don't have historical test parameters, and it can take a long time to develop a normalized operating range. So, we kicked off a pilot using AI with our test bench data to determine our normalized parameters much more rapidly,” Haubenschild said. “At some point in the future we would like to expand capabilities to include an agent that will help us troubleshoot. When we do have a failure of a product on our test bench, AI can give the operator suggestions about what to fix first based on all prior failures,” Haubenschild added.

42%

of manufacturers consider improved product quality when assessing ROI for AI projects

AI for visual quality inspection is helping NSK improve its quality control process. “Traditional systems required inputting hundreds of sample pictures,” Kyle Stiens, Director of Operations NSK Americas explained. “With AI, you just upload 10-15 pictures of varying quality. We have had excellent results with a lot more consistency. The old system resulted in a lot of alpha rejects [products that were mistakenly identified as faulty]. Now we aim for about 0.5% alpha rejects (versus 2% previously) and the AI system is outperforming that target rate,” Stiens said.

AI-based vision inspection is being used in the automotive industry to inspect welds in real time. Sabrina Joos, Director of Program and Lifecycle Management for New Systems at Siemens shared: “Our automotive customers are using computer vision to analyze thousands of welding points per vehicle. It is an industrial edge solution and happens in real time. The vision system detects weld splatter quality deviations that are nearly impossible to catch consistently with the human eye. In one case, we had over 2,000 weld spots per unit that are evaluated automatically. This is a speed that cannot be replicated by human inspectors.” Because the inspections are happening in real time, “corrective actions can happen immediately on the line,” Joos explained.

“AI is teaching us to think about things a little differently in terms of how we approach some of these problems. We can do a lot more with the data than ever before.”

— David Roberts , The Heico Companies

Companies are utilizing the multidimensional analysis capabilities of AI for combined analysis for quality and safety for the first time. Anil Uzengi of Stroma is working with automotive companies to deploy edge-based cameras and AI systems to perform visual inspections for both safety and quality. “In Japan, ergonomic analysis is really important because they have an aging workforce. They want AI to detect musculoskeletal risks before injuries occur. The system looks for high-risk postures, repetitive motion, unsafe lifting, and similar patterns, then alerts employees and supervisors early,” Uzengi said. “The same system also verifies correct actions and component usage. If an operator uses the wrong part in an assembly, it can lead to critical faults. That’s why manufacturers are combining ergonomic safety with visual quality compliance in a single system,” he added.

AI is uniquely suited for analyzing unstructured data about safety risks. At The Heico Companies, employees are encouraged to flag anything that seems like a hazard. The emphasis is on making it very easy for employees to put concerns into the system. As David Roberts, Vice President of EHS, explained, “We empower employees to give us feedback about safety in real time. All they need to do is scan a QR code and provide a description of what they saw. They can do this in any format and don’t need to log in, fill out a form, or use drop-down menus. Talk about raw data!” Input can even be anonymous if the employee prefers. The AI system is able to sort through the unstructured data, identify patterns, and recommend actions. For example, the system may indicate that mobile equipment represents an increased hazard in a certain part of the factory. “It gave us more meaningful data, and it has driven very valuable conversations. We saw the value in it right away, and if it prevented one significant injury, it paid for itself.”

The connection between safety and maintenance is also of interest at The Heico Companies. “Thinking beyond EHS, we are starting to look at how we can use AI to analyze both safety records and maintenance logs. We’re asking how equipment problems and maintenance issues can contribute to safety risk,” Roberts said. “AI is teaching us to think about things a little differently in terms of how we approach some of these problems. We can do a lot more with the data than ever before.”

From Forklifts to AMRs

Addressing the specific hazards of mobile equipment was a top priority for NSK. Kyle Stiens said that the company wanted to address the amount of traffic on the shop floor before it became a safety hazard. “We became uncomfortable with the interaction between pedestrians and forklifts, so we decided to separate those factors completely by eliminating forklifts in spaces where people are present.” In places requiring movement of materials across great distances, NSK deployed AMRs (autonomous mobile robots). “It wasn't as simple as going back and forth between point A and point B. We needed a couple hundred different points, and they needed to be variable, so we worked with a vendor to create a fully autonomous system for AMRs.”

The AMRs use LiDAR (Light Detection and Ranging) to ensure safe navigation. They can make their own decisions or be summoned. “The team member can say ‘Come get my finished product’ and the AMR will automatically bring an empty pallet to replace the one it is taking. Just two AMRs can serve approximately 100,000 square feet of our plant.” The benefits go beyond safety. “We have always had processes in place to ensure that our plants maintained a high level of cleanness and organization, but the AMRs have forced us to an even higher level of discipline and standardization. Now people are thinking even more about where they place, for example, a toolbox to avoid interrupting the AMR.” Overall the program has been successful and NSK is looking for expansion opportunities in other parts of its operations.