Workpiece-side Impact on the Tribological Conditions within Hot Stamping

Funding period:

Start: 1. November 2019
Ende: 31. October 2021

Abstract

Hot stamping has been established in the automotive industry for the production of ultra-high-strength components. Since the use of lubricants has so far not been possible due to the high operating temperatures > 850 °C, high friction coefficients coupled with wear occur in the process. In the project P1291/IGF 20339 N "Workpiece-side influence of tribological conditions during hot stamping", funded by the FOSTA, AiF and BMWK, the influence of workpiece-side austenitization parameters and material coatings as well as the resulting tribological application behavior was determined against this background. The influence of different heating parameters and coatings on layer formation and friction behavior was investigated in the strip drawing test. The significant influencing parameters and interactions were then incorporated into a friction model for realistic numerical representation of the friction behavior and validated on the basis of real experiments. The results and findings in the project were summarized in a final report, which will soon be available from FOSTA. Six publications were produced as part of the project. Student theses involved in the project were awarded and supported by the Dörrenberg StudienAWARD, the Stiftung Industrieforschung scholarship, and the DIEHL Master Prize.

Funded by Federal Ministry of Economics and Climate Protection based on a resolution of the German Bundestag.

Research groups

• Sheet Metal Processing

Publications