For conventional sheet metal forming at room temperature, numerous tribometers were developed in the 20th century. At the present state of the art, there are some unsolved issues for tribometry in warm and hot forming processes of high strength aluminum (e.g. EN AW-7075), where the sheet is heated to temperatures between 200 and 480 °C. The tribological design of these processes is still a major challenge, which needs to be addressed by investigations with adapted tribometers.
In this study, the friction and wear behavior of two different lubricants at three temperatures are investigated in an adapted strip drawing test for aluminum warm and hot forming. The results from tribometer tests are validated with real forming trials in combination with thermomechanically coupled finite element simulations. In a sensitivity analysis, the influence of the coefficient of friction on the forming process simulation is discussed.