Analysis, Prediction and Reduction of Emissions in an Industrial Hot Forming Process Chain for the Manufacture of Sheet Metal Components

Abstract:

Increasing demands for reducing greenhouse gases drive the metal processing industries to a CO₂-neutral production. A thorough understanding of CO₂ emission sources from the stage of material acquisition up to the final component is thus necessary to improve the CO₂ footprint of sheet metal hot forming process chains. To emphasize on this, an exemplary hot forming process chain is assessed to identify the impact of each sub-process step on total CO₂ emissions and the savings potential of individual measures is evaluated. Moreover, a mathematical model is proposed that enables for the prediction of the product specific CO₂ emissions as early as in the product design stage. This model is tested to calculate the CO₂ emissions resulted during the production of an exemplary hot stamped sheet component. The results point out that the heating stage is responsible for the second highest percentage of CO₂ emissions in the process chain next to the material acquisition. Thus, as one of the most suitable measures, a concept to recover process heat from hot formed components to the cold initial blanks is proposed and evaluated analytically.

• Periodical: Key Engineering Materials (Volume 926)
• Pages: 2342-2354
• DOI: https://doi.org/10.4028/p-g7120f
• Online since: July 2022
• Authors: Manish Chowdary Ghattamaneni*, Sebastian Wernicke, T.S. Hainmann, H. Sulaiman, A. Erman Tekkaya
• Keywords: CO₂ Emissions, Green Manufacturing, Heat Recovery, Hot Forming, Sheet Metal Forming

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