KIRCHHOFF Automotive produces the highly specialised 2WD mounting carrier for the new Audi A6 e-tron at the plant in Shenyang, China. This complex welded steel assembly is the central connecting element for chassis and drive components and is specially designed for the requirements of battery-powered electric vehicles. The extremely tight tolerance specifications posed a particular challenge during development. The welding process introduces considerable heat into the component, which can lead to warping and makes it more difficult to meet the tolerance requirements. In the chassis area, the corrosion protection must meet the highest standards. That is why we carry out a special pickling pretreatment before the actual cathodic dip coating, which ensures optimal surface protection.

Technologies: Forming, MAG welding, e-coating (cathodic dip coating)