3D printing to help Audi create tools to build e-Tron GT

  • The Audi e-tron GT is the first vehicle for which 3D printing is an established part of preparations for series production.
3D printing to help Audi create tools to build e-Tron GT
3D printing to help Audi create tools to build e-Tron GT

The in-house team of 3D printing specialists at Audi’s Bollinger Hofe site has teamed up with trinckle, a company based in Berlin, to develop innovative design software. The objective is to enable any employee who needs a tool from the 3D printer to design it personally without needing extensive prior knowledge.

The Audie-tronGT is the first vehicle for which 3D printing is an established part of preparations for series production, which means that all the tools for assembly and pre-assembly are in place at the start of production.

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With the newly designed software, there is no need for the time-consuming process of manually sculpting models in CAD (computer-aided design) programs, which makes workflows faster as a result. Using the new system cuts design time for tools by 80%.

“Our software makes the process of creating pre-assembly fixtures almost completely automated. That allows us to make the necessary tools quickly and flexibly and to respond to specific requests from the planners or our colleagues on the assembly line," explained project manager Waldemar Hirsch, who is the head of the team of experts in 3D printing at the Ramp-Up and Analysis Center at Audi Bollinger Hofe. The software is calibrated precisely to Audi’s needs and is also part of the process of digitalizing production at the site.


In the case of the Audie-tronGT, which is set to roll off the assembly line at Bollinger Hofe together with the Audi R8 starting in late 2020, the 3D printing experts are working closely with their colleagues from the process and assembly planning and pre-series production teams. They are already optimizing the assembly tools for the new workflows.

“Collaborative design from an early stage enables optimizations to be made earlier in the process as well. This means that all the necessary tools will already be available and calibrated to the exact requirements when production of thee-TronGT begins," says Hirsch.

One of the 3D-printed tools is to be used in the pre-assembly of air-conditioning compressors and cooling lines. All components need to be aligned with each other with exceptional precision during assembly. That has not previously been possible without a helping hand from a colleague. The custom-designed pre-assembly fixture with an integrated clamp holds all components in exactly the right position.

The materials used are designed to meet a wide range of requirements and satisfy the most exacting standards. In addition to the exceptionally stable tools containing glass fiber, the 3D printer also produces ESD (electrostatic discharge) materials. These are highly conductive and are therefore used for electrically sensitive components.

The browser-based software is currently installed locally and used primarily within Audi Sport GmbH at Bollinger Hofe, but there are plans to roll it out across the Group. The design software is not the first development to come out of the 3D printing Competence Center. A software application for smart management of 3D printing orders, also made in Neckarsulm, is already in use at Audi.

First Published Date: 24 Feb 2020, 16:13 PM IST
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