PI 028-16 Lohr am Main, 2016-03-29

Successful duo: reliable welding technology and intelligent drive technology

Audi implements Bosch Rexroth's combi controls to manufacture its car bodies. The two companies have agreed an extensive collaboration in connection with the new welding technology solution.

Audi and Rexroth agree extensive collaboration

Audi plans on equipping its European plants with Rexroth's welding control as of 2017. The new combi control involves linking the welding control and the welding gun's direct drive. This thoroughly enhanced solution produces higher process performance thanks to improved force accuracy and shorter cycle times.

“We have been using Bosch Rexroth's combi controls with integrated welding gun drive for about three years as part of a pilot project. Together we could undertake the necessary process developments to turn a basic idea into a system that is ready for series production,” stresses Guenther Widmann, coordinator of resistance spot welding technology at Audi, adding that: “The no-holds-barred solution features a convincing combination of advanced technology, high welding quality and economic efficiency.” As system provider, Bosch Rexroth also supplies transformers, offers training sessions and supports customers on-site during commissioning and ongoing operation.

The new welding technology meets the growing requirements which go hand in hand with the lightweight construction of modern cars. The increased use of aluminum, high-tensile steels, plastics and new materials means that car bodies are being made up of an ever greater mix of materials. This poses greater challenges in terms of secure joints, demanding high-end technology in order to optimize these welding spots. Drawing on its long-standing product and application expertise , Bosch Rexroth developed a new solution consisting of the reliable welding control PSI6000 and the intelligent drive system IndraDrive Cs. The control of the drive of the welding gun thus shifts from the robot directly into the welding control.

Lower operating costs and shorter cycle times

The Rexroth welding system PSI6000 featuring a medium-frequency converter and integrated process monitoring achieves a high level of welding spot quality, which extends the test cycles. This cuts operating costs and makes the production system more flexible. Bosch Rexroth has now combined this proven technology with the compact servo drive IndraDrive Cs. With this, the welding control directly takes over the control of the drive. As the drive is so close to the welding process, force is built up better, something that is crucial for control quality. Thanks to the drive, pressure and balancing of the welding gun directly intervene in the welding control. The factors of current, time and force are synchronized optimally, making for shorter cycle times. What's more, the uniform operating interface makes programming and troubleshooting of the welding control and servo gun control easier.

“The combi controls meet our high expectations with regard to reliable welding quality and economic efficiency. At the same time, Bosch Rexroth has proven to be a reliable partner, guaranteeing high-quality commissioning and support,” sums up Guenther Widmann.

Economical, precise, safe, and energy efficient: drive and control technology from Bosch Rexroth moves machines and systems of any size. The company bundles global application experience in the market segments of Mobile Applications, Machinery Applications and Engineering, and Factory Automation to develop innovative components as well as tailored system solutions and services. Bosch Rexroth offers its customers hydraulics, electric drives and controls, gear technology, and linear motion and assembly technology all from one source. With locations in over 80 countries, more than 33,700 associates generated sales revenue of approximately 5.6 billion euros in 2014.

To learn more, please visit

The Bosch Group is a leading global supplier of technology and services. It employs roughly 375,000 associates worldwide (as of December 31, 2015). According to preliminary figures, the company generated sales of more than 70 billion euros in 2015. Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 440 subsidiaries and regional companies in some 60 countries. If its sales and service partners are included, then Bosch is represented in roughly 150 countries. This worldwide development, manufacturing, and sales network is the foundation for further growth. In 2015, Bosch applied for some 5,400 patents worldwide. The Bosch Group’s strategic objective is to deliver innovations for a connected life. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.”

Additional information is available online at , and


Search press releases


Susanne Herzlieb
Maria-Theresien-Straße 23
97816 Lohr am Main
Phone: +49 9352 18-1573

Related Articles


The factory of the future creates added value through flexibility and agility

In future production environments demands on adaptability will rise. This development can only be realized by separating hardware and software in automation. Bosch Rexroth AG promotes this development primarily with a broad product spectrum from sensors to drive and control technology to software solutions.

Press information

IMS-A position measuring system now with DRIVE-CLiQ interface

Plug in, determine the measurement section and that's it: Bosch Rexroth makes it even easier to set up the new IMS-A measuring system integrated into linear guides using the additional DRIVE-CLiQ* interface. This Ethernet-based interface recognizes the electronic nameplate of the highly accurate and robust new absolute value measuring system. Since the system's introduction on the market, it has been possible to set it up within a matter of minutes in conjunction with HIPERFACE** and the Rexroth drives IndraDrive. Supplemented by the SSI interface, IMS-A now provides holistic support for universal implementation in machine tools, additive production processes and other applications requiring high levels of precision.