Manufacturing velocity: Position automotive manufacturing to keep pace
Plants dedicated to manufacturing single vehicles are a thing of the past. Today’s auto manufacturing plants must be flexible, capable of producing multiple vehicles in multiple variations, all on one line.
With the increase in flexible manufacturing comes more parts, more variation and programs, and more interfaces to robots and other devices. Additionally, the plant must maintain continual operations without reprogramming all the equipment or reconfiguring the entire control architecture to ensure output and productivity remain high.
An enterprise-wide infrastructure is needed to support these flexible manufacturing needs. That includes integrating flexible equipment and tooling that can quickly and easily adjust for different vehicle variations and sizes on the same production line. Equally as important are the business systems that provide a real-time window into manufacturing operations and a supply chain to keep all parties informed with visibility into the constantly changing production stream.
To support the flow of all this critical information, achieving a truly connected enterprise that can get data securely to and from machines and people—at every level, in any location, and in the right context—is vital. Using a unified control and networking infrastructure that is IP-centric can help ensure all devices within an automotive plant can talk with one another, increasing the amount of available information and thus creating more room for agility and innovation.
An information-enabled control and information system that uses the EtherNet/IP protocol for Ethernet communications can help move more easily toward the use of one network, streamline multiple disciplines and applications into one package, and help enable secure and easy flow of production data. EtherNet/IP connects to hundreds of IP-based devices—including those that weren’t originally designed for an industrial setting—to help increase productivity, quality, efficiency, and safety on the plant floor.
On top of this, a manufacturing execution system (MES) should be integrated into the enterprise and plant-floor operations to help synchronize manufacturing tasks, quality procedures, and inventory movements throughout production. An MES also enables the capture of vehicle-production information for regulatory compliance, warranties, and continuous-improvement analysis.
Incorporating more information into the manufacturing process also enables customer feedback to reach the production line faster. Whereas it once took months for enough feedback to make its way back to manufacturers, it can now be done in days. Today's vehicles are smart enough that they can be plugged in for a diagnostic check, and any issues can be immediately reported back to the plant. That puts the onus on the plant to have a connected enterprise in place that's robust enough to route the information to the necessary workers so they can quickly address quality issues on the line.
A survey conducted by TechValidate and Rockwell Automation of auto manufacturing executives from around the world found that nearly two-thirds of respondents said they were “very confident” that their organization was accurately interpreting the production data generated by their current systems. That’s an encouraging statistic, because to operate efficiently, those involved need to understand what's happening in manufacturing operations and across the supply chain. Having real-time information visibility can help those involved to:
- Understand what's happening across the enterprise, with production work flows, overall equipment effectiveness (OEE), supplier deliveries, production times, parts inventories, etc.
- Predict downtime events before they happen and intervene as needed
- Distribute event data or other information to the appropriate personnel so they can make any necessary adjustments.
It is critical that the information is in the right form and for the right people, and shared across plants and global business systems for better decision making and competitive advantage.
Anything from a quality issue on the production line to a supply shipment being stalled hundreds of miles away can have wide-ranging, chain-reaction effects on operations. Understanding the impact these disruptions can have and then relaying the relevant information across the enterprise to the right people can mean the difference between stalled and on-time production.
This could include notifying a maintenance technician with relevant tooling information or informing scheduling personnel about supply-rerouting options. It could even include notifying outside parties such as suppliers so they can then make adjustments in their operations to ensure inventories don't deplete.
Production information can also be compiled and compared, whether it’s within one plant or across an enterprise. The use of comparative data has the potential to identify efficiencies, trends, and best practices across operations. For example, why does it take 10% longer to produce the same platform in one plant versus another? Or why is quality varying between production runs? The answer exists—it simply needs to be mined from operations.
“The nature of production work is becoming more and more complex as the product—and the technology used to build it—become more and more advanced,” according to the Center for Automotive Research report “The Big Leave: The Future of U.S. Automotive Human Resources.” “This production complexity necessitates employing workers who may not have higher levels of formal academic preparation beyond high school or a GED, but nevertheless can demonstrate higher literacy and numeracy levels and more advanced communication and team skills than were previously required of automotive manufacturing workers.”
Because their responsibilities are greater and their expertise more diverse, auto workers today more than ever need to receive cross-training to build their understanding and expertise across multiple areas. For example, maintenance technicians need to receive comprehensive training for the increasingly complicated machines found on the plant floor and the plethora of devices that are being connected to them. These connected technologies continue to become more advanced, and the roles are beginning to blur between what the IT department and the maintenance technicians will each be responsible for managing.
As technologies allow plant managers to view comparative data across plants, that data needs to be incorporated into training programs. Operational improvements, after all, are only as good as the people who implement them.
Additionally, as automakers launch operations in emerging markets, they’re striving to replicate the successful operations they’ve built in their established markets. That means employing highly skilled employees in countries that may lack the experienced workforce that they’re accustomed to drawing from. Delivering comprehensive training to these employees is critical.
Beyond training, productivity can be optimized in a number of other ways. One key area is asset management, where a four-step approach can help get more out of facility assets while also minimizing downtime:
- Evaluate – assessing existing processes for inventory management and maintenance needs
- Design – identifying process efficiencies, as well as areas where inventory and production issues can be improved
- Implement – putting into place processes that will improve productivity, reduce costs, and enable financial predictability
- Measure and optimize – using analytics and reporting tools to drive continuous improvement.
Obsolescence is another issue that can result in downtime and lost productivity. Automakers should ensure they are proactive in their lifecycle management. This includes pinpointing any obsolescence risks and planning ahead to ensure they have access to parts, particularly for those that may be hard to find.
Auto manufacturer of tomorrow
Increased globalization and better-connected operations will likely push vehicle refreshes to occur at an even faster speed than what’s taking place today. At the same time, production volumes will increase.
These factors will put continued pressure on the auto industry to be more versatile in operations. Manufacturers could also push the need for flexibility from the manufacturing level down to the supplier level.
Additionally, continued pressure to improve fuel economy in vehicles is likely to lead to significant design changes. Composite materials, for example, could be used more in place of aluminum. That will have a major change on production operations—such as replacing welding with fasteners, rivets, and screws—and will also drive plant operators to rethink their facility layouts and production processes.
For the auto manufacturers that aren’t putting in place strategies and solutions that can speed manufacturing velocity today, these future challenges will be more difficult to overcome tomorrow.
- Todd Montpas is market development manager, automotive and tire, Rockwell Automation. Edited by Mark T. Hoske, content manager, CFE Media, Control Engineering and Plant Engineering, firstname.lastname@example.org.