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A million printed components in just ten years: BMW Group makes increasing use of 3D printing

+++ BMW Group is a driver of additive manufacturing +++ Use of additive manufacturing is increasing in series production +++

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Munich. At the BMW Group, the use of 3D-printed components is on the rise. Over the last decade alone, the company produced a million parts by this innovative method, and this year output from the BMW Group Additive Manufacturing Center is expected to reach over 200,000 components — a 42 percent increase on last year’s total.

Dr. Jens Ertel, Director of the BMW Group Additive Manufacturing Center: “The use of components made by additive manufacturing in series production of vehicles is increasing particularly strongly at the moment. We are following the development and application of advanced these manufacturing methods very closely indeed, partly through longstanding cooperations with leading manufacturers in the field. At the same time, we are engaging in targeted technology scouting and evaluating innovative production systems.”

Recently the BMW Group fitted its one-millionth 3D-printed component in series production: a window guide rail for the BMW i8 Roadster. Thanks to the work of specialists at the Additive Manufacturing Center, the rail took just five days to develop and was integrated into series production in Leipzig shortly after. It is found in the door of the BMW i8 Roadster and allows the window to operate smoothly. The component is manufactured by HP Multi Jet Fusion Technology, a high-speed method enhanced by the BMW Group in conjunction with HP and now in use in the series production of vehicles for the very first time. It can produce up to 100 window guide rails in 24 hours.

BMW i8 Roadster now incorporates two additively manufactured components

The window guide rail is the second 3D-printed component in the BMW i8 Roadster. The first was the fixture for the soft-top attachment, which is also produced at the Additive Manufacturing Center in Munich. Made of aluminium alloy, the metal component weighs less than the injection-moulded plastic part that is normally used but is still considerably stiffer. Its importance has already been recognised with an Altair Enlighten Award in the category for Modules this year. The accolade honours lightweight innovations in the field of subsystems and components.

Additive manufacturing fulfils customers’ wishes

Meanwhile, the personalisation of vehicles and components by customers themselves is also becoming more and more important. With the MINI Yours Customised product initiative, customers can design selected components themselves, such as indicator inlays and dashboard trim strips. They create their designs at the online shop (www.yours-customised.mini), and the parts are then 3D-printed to specification.

Advanced and customer-focused in equal measure, MINI Yours Customised was honoured with a special accolade: the gold German Innovation Award presented by a foundation called the German Design Council (‘Rat für Formgebung’).

The BMW Group is constantly exploring ways of using additive manufacturing to the customer’s advantage.

Additive manufacturing for series production

For the BMW Group, additive manufacturing will be a key future production method. The company first began using plastic and metal-based processes back in 2010, initially for the production of smaller series of components, such as the water pump pulley for DTM vehicles. Further series applications followed in 2012, with various laser-sintered parts for the Rolls-Royce Phantom. Since last year, the fixtures for fibre optic guides in the Rolls-Royce Dawn have also been 3D-printed, and the luxury brand today incorporates a total of ten 3D-printed components into its products.

The BMW Group has been quick to capitalise on its experience, identifying potential uses for additive manufacturing technologies early on.

 

If you have any questions, please contact:
Corporate Communications

Carolin Seidel, Communications Production Network BMW Group
Telephone: + 49 89 382-90340
Carolin.Seidel@bmwgroup.com

Sandra Schillmöller, Communications Production Network BMW Group
Telephone: + 49 89 382-12225
Sandra.Schillmoeller@bmwgroup.com

 

CO2 EMISSIONS & CONSUMPTION.

BMW i8 Roadster: Combined fuel consumption 2.1 l/100 km; confined electricity consumption 14.5 kWh/100 km; combined CO2 emissions 46 g/km.

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CO2 emission information.

The following applies to consumption figures for vehicles with new type approval, September 2017 onward: The figures for fuel consumption, CO2 emissions and energy consumption are obtained in accordance with the specified measuring procedure (EC Regulation No. 715/2007), as issued and amended. The figures are for a basic-version vehicle in Germany. The bandwidths allow for differences in the choice of wheel and tire sizes and items of optional equipment and can be changed by the configuration.

Obtained on the basis of the new "Worldwide harmonized Light vehicles Test Procedure" (WLTP), the figures are converted back to the "New European Driving Cycle" (NEDC) for the sake of comparability. Values other than those stated here may be used for the purposes of taxation and for other vehicle-related duties relating to CO2 emissions.

More information about official fuel consumption figures and the official specific CO2 emissions of new passenger cars can be obtained from the "guideline on fuel consumption, CO2 emissions and current consumption of new passenger cars", available here: https://www.dat.de/co2/.

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