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New BMW Additive Manufacturing Campus consolidates activities in major development for automotive

After teasing major 3D printing adoption in a successful April Fools, the BMW Group is now set to – really – invest more than €10 million in its new BMW Additive Manufacturing Campus. Located in Oberschleissheim, just north of Munich, the facility will allow the company to continue developing and further expand its expertise in this field of work.

“Our new Additive Manufacturing Campus will concentrate the full spectrum of the BMW Group’s 3D printing expertise at a single location. This will allow us to test new technologies early on and continue developing our pioneering role.”

Udo Hänle, Head of Production Integration and Pilot Plant

Jens Ertel, Head of the BMW Group’s Additive Manufacturing Center and the future campus director, added the “[the] new facility will be a major milestone in additive manufacturing at the BMW Group. The team there – he said – will evaluate new and existing technologies in both plastics and metals printing and develop them to series maturity. Our goal is to provide the optimum technology and process chain, be it for individual components, small production runs or even large-scale manufacturing.”

Within the BMW Group production network, the new Additive Manufacturing Campus will foster the latest technologies in this field in much the same way as a pilot plant and make them available for use within the network. Much of the work carried out there will focus on parts manufacturing for prototype construction, series production (such as the i8 lean production project), and customized solutions (such as the Mini online customization service project). The Additive Manufacturing Campus will also act as an interdisciplinary training and project area, for instance for development engineers. BMW is also an investor in Desktop Metal and Carbon to foster the development of the companies’ production AM process.

Located in an existing building with a footprint of over 6,000 square metres, it will accommodate up to 80 associates and over 30 industrial systems for metals and plastics. It is scheduled to go on stream in early 2019.

Major potential in series production for customized vehicle components

Additive manufacturing is an integral part of the BMW Group production system and harbors significant potential for series production. Most recently it has been used to generate parts for the BMW i8 Roadster. Jens Ertel: “With the BMW i8 Roadster, the BMW Group became the first carmaker to 3D print a production run of several thousand metal parts. The component concerned is a fixture in the tonneau cover for the soft-top.” Made of aluminum alloy, the printed item is lighter than the normal injection-molded equivalent but significantly more rigid. Its ‘bionic’ geometry, inspired by forms found in nature, was optimized for 3D printing purposes.

BMW Additive Manufacturing Campus

Additive manufacturing is also gaining importance for customized components. The new MINI Yours Customised programme, for example, allows customers to design certain components themselves. Indicator inlays and dashboard trim strips, for instance, can be 3D-printed to their precise specifications.

Decentralising manufacturing – production follows the market

The BMW Group expects that, with time, it will become possible to produce components directly where they are ultimately needed – an idea that harbors tremendous potential. Jens Ertel:

“The 3D printers that are currently operating across our production network represent the first step towards local part production. We are already using additive manufacturing to make prototype components on location in Spartanburg (US), Shenyang (China) and Rayong (Thailand). Going forward, we could well imagine integrating it more fully into local production structures to allow small production runs, country-specific editions and customizable components – provided it represents a profitable solution.” This would make additive manufacturing a useful addition to existing production technologies.

Investments through BMW i Ventures

For the BMW Group, investments in start-ups have proved promising not only in strategic but also in commercial terms. In addition, they represent a sustainable strategic value-add.

In September 2016, for example, the BMW Group’s venture capital arm, BMW i Ventures, invested in the Silicon Valley-based company Carbon, whose DLS (digital light synthesis) printing technology was a breakthrough in the production of parts with high-quality surfaces. The technique allows significantly larger areas to be processed more rapidly than would otherwise be possible with conventional selective 3D printing. Carbon and the BMW Group have been partners since 2015.

BMW Additive Manufacturing Campus
Desktop Metal’s Production systems

A further investment in additive manufacturing came in February 2017, this time in the start-up Desktop Metal. Desktop Metal specializes in the additive manufacturing of metal components and has developed highly productive and innovative methodologies. It now works closely with the Additive Manufacturing Centre at the BMW Group.

In June 2017 the BMW Group invested in a company called Xometry, which works in the supply chain industry. Xometry is a web-based platform that networks suppliers and manufacturers from different sectors with each other. Pilot projects are already underway in a range of areas including spare parts manufacturing.

Cooperations with innovative partners such as these aim to speed up the adoption of additive manufacturing technologies.

Digital production methods for vehicle development and manufacturing

Thanks to its tremendous scope for the rapid manufacture of quality parts of almost any geometry, additive manufacturing has been in use in the construction of concept cars at the BMW Group since 1991. Components are realized purely using digital data, eliminating the need for classic tools such as press tools and injection molds. At present, the technology is most commonly used for small production runs of customized and often highly complex components.

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