Industrial AI: Siemens and machine manufacturers agree on data alliance Siemens, together with machine tool manufacturers - including Grob, Trumpf, Chiron, Renishaw, Heller - as well as the Machine Tool Laboratory (WZL) of RWTH Aachen and the Voith Group, has introduced an alliance that provides for the systematic exchange of engineering, manufacturing, and machine data for the development of generative AI applications in the industrial environment.